CN215673753U

CN215673753U - Marine butterfly check valve with prevent leaking function

Info

Publication number: CN215673753U
Application number: CN202121885729.3U
Authority: CN
Inventors: 潘正宏
Original assignee: Taizhou Shengxiang Machinery Manufacturing Co ltd
Current assignee: Taizhou Shengxiang Machinery Manufacturing Co ltd
Priority date: 2021-08-12
Filing date: 2021-08-12
Publication date: 2022-01-28
Anticipated expiration: 2031-08-12

Abstract

The utility model relates to a marine butterfly check valve with a leakage-proof function, which comprises a valve body, wherein a valve core structure is arranged inside the valve body, a sealing leakage-proof mechanism is arranged inside the valve body and used for preventing leakage, the valve core structure comprises a central shaft rod movably arranged inside the valve body, a torsion spring is movably arranged on the surface of the central shaft rod, a right valve plate is movably arranged on the right side of the central shaft rod, and a left valve plate is movably arranged on the left side of the central shaft rod. This marine butterfly check valve with prevent leaking function, left sealing ring and right sealing ring have been installed respectively to the inner wall in the valve body left and right sides, and at the back installation right side loose ring of right valve plate, the left loose ring of front installation of left valve plate, therefore when liquid takes place to flow against the current in the pipeline, right valve plate and left valve plate can be the vertical state with the inner wall of valve body, right sealing ring contacts with right loose ring, left sealing ring contacts with left loose ring, liquid can't pass the valve body, effectual promotion prevents the purpose of leaking.

Description

Marine butterfly check valve with prevent leaking function

Technical Field

The utility model relates to the technical field of check valves, in particular to a butterfly check valve for a ship, which has a leakage prevention function.

Background

The butterfly check valve is a valve that automatically opens and closes a valve flap depending on the flow of a medium, and is used for preventing the medium from flowing backwards, and is also called a check valve, a one-way valve, a reverse flow valve and a back pressure valve.

In addition, when the existing check valve is in butt joint with the pipeline, the butt joint part of the existing check valve is mostly in plane butt joint, a gap still exists at the butt joint part, and once the pressure in the pipeline is increased, substances in the pipeline can be filled in the gap and leak.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects of the prior art, the utility model provides the marine butterfly check valve with the leakage prevention function, which has the advantages of leakage prevention and the like and solves the problems in the prior art.

In order to achieve the purpose of preventing leakage and the like, the utility model provides the following technical scheme: the utility model provides a marine butterfly check valve with prevent leaking function, includes the valve body, the inside of valve body is provided with the case structure, the inside of valve body is provided with sealed prevents leaking the mechanism for preventing leaking, the case structure includes the axis pole of movable mounting inside the valve body, the surface movable mounting of well axostylus axostyle has the torsional spring, the right side movable mounting of well axostylus axostyle has right valve plate, the left side movable mounting of well axostylus axostyle has left valve plate, sealed prevent leaking the mechanism and include the seal cover of movable mounting on axis pole surface, the inner wall fixed mounting on valve body right side has right sealing ring, the left inner wall fixed mounting of valve body has left sealing ring, the back fixed mounting of right valve plate has right loose collar, the front fixed mounting of left valve plate has left loose collar.

Further, the equal fixed mounting in both ends of valve body has the buttcover plate, two the butt joint groove has all been seted up to buttcover plate one side back of the body mutually, and the inner wall fixed mounting in butt joint groove has the sealing washer, and the buttcover plate is ring shape, and the diameter of buttcover plate is greater than the diameter of valve body, and four butt joint screw holes are installed to the surface equidistance of buttcover plate.

Furthermore, the butt joint groove is the ring groove, and the internal diameter in butt joint groove equals with the internal diameter of valve body, and the thickness in butt joint groove is half of butt joint plate thickness, and the sealing washer is annular rubber circle.

Further, well axostylus axostyle is connected with the valve body rotation, and the top of well axostylus axostyle and the equal fixed mounting in bottom have the stopper that extends to roof or interior diapire in the valve body, and right valve plate and left valve plate are semi-circular, and the arrangement groove that corresponds with well axostylus axostyle is seted up to right valve plate and the relative one side of left valve plate.

Further, the quantity of torsional spring is two, and two opposite one sides of torsional spring do not fixed mounting have with right valve plate and left valve plate fixed connection's connecting plate, and the quantity of seal cover is two, and two seal covers are located one side that two torsional springs carried on the back mutually respectively.

Further, the right sealing ring is located the back of right valve plate, and right sealing ring contacts with right loose ring, and right sealing ring is the semicircle ring-type with right loose ring, and left sealing ring is located the front of left valve plate, and left sealing ring contacts with left loose ring.

Compared with the prior art, the utility model provides a butterfly check valve for a ship with a leakage-proof function, which has the following beneficial effects:

the marine butterfly check valve with the leakage-proof function has the advantages that the sealing sleeve fixedly connected with the right valve plate and the left valve plate is arranged on the surface of the middle shaft rod, so that no gap exists between the right valve plate and the left valve plate, liquid is effectively prevented from leaking from the middle shaft rod, in addition, the inner walls of the left side and the right side of the valve body are respectively provided with the left sealing ring and the right sealing ring, the back surface of the right valve plate is provided with the right movable ring, the front surface of the left valve plate is provided with the left movable ring, because the check valve can only rotate in one direction, when liquid in a pipeline flows reversely, the right valve plate and the left valve plate are in a vertical state with the inner wall of the valve body, at the moment, the right sealing ring is contacted with the right movable ring, the left sealing ring is contacted with the left movable ring, the liquid can not pass through the valve body, the leakage-proof purpose of the marine butterfly check valve is effectively improved, and finally, one side of the two butt-joint plates, which are back to each other, is provided with a butt-joint groove, when the butt joint is carried out with the pipeline, the pipeline is embedded into the butt joint groove, the butt joint plate and the pipeline are mutually embedded from the traditional plane butt joint, the contact pressure resistance can be improved, and liquid leakage is further prevented.

Drawings

FIG. 1 is a schematic front cross-sectional view of a valve body according to the present invention;

FIG. 2 is a schematic side cross-sectional view of the present invention.

In the figure: 1 valve body, 2 butt joint boards, 3 butt joint grooves, 4 sealing rings, 5 middle shaft rods, 6 torsion springs, 7 right valve plates, 8 left valve plates, 9 connecting plates, 10 sealing rings, 11 right sealing rings, 12 left sealing rings, 13 right movable rings and 14 left movable rings.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-2, a marine butterfly check valve with leakage prevention function comprises a valve body 1, a valve core structure is arranged inside the valve body 1, a sealing leakage prevention mechanism is arranged inside the valve body 1 and used for preventing leakage, the valve core structure comprises a center shaft rod 5 movably arranged inside the valve body 1, a torsion spring 6 is movably arranged on the surface of the center shaft rod 5, a right valve plate 7 is movably arranged on the right side of the center shaft rod 5, a left valve plate 8 is movably arranged on the left side of the center shaft rod 5, the sealing leakage prevention mechanism comprises a sealing sleeve 10 movably arranged on the surface of the center shaft rod 5, a right sealing ring 11 is fixedly arranged on the inner wall on the right side of the valve body 1, a left sealing ring 12 is fixedly arranged on the inner wall on the left side of the valve body 1, a right movable ring 13 is fixedly arranged on the back of the right valve plate 7, a left movable ring 14 is fixedly arranged on the front side of the left valve plate 8, and the sealing sleeve 10 fixedly connected with the right valve plate 7 and the left valve plate 8 is arranged on the surface of the center shaft rod 5, so that no gap exists between the right valve plate 7 and the left valve plate 8, thereby effectively avoiding the leakage of liquid from the middle shaft rod 5.

Further, the equal fixed mounting in both ends of valve body 1 has dock plate 2, dock groove 3 has all been seted up to one side that two dock plates 2 carried on the back mutually, dock groove 3's inner wall fixed mounting has sealing washer 4, dock plate 2 is ring shape, dock plate 2's diameter is greater than valve body 1's diameter, dock plate 2's surface equidistance installs four butt joint screw holes, dock groove 3 is the circular ring groove, dock groove 3's internal diameter equals with valve body 1's internal diameter, dock groove 3's thickness is the half of dock plate 2 thickness, sealing washer 4 is the annular rubber circle of circle, dock plate 2 and pipeline by traditional plane butt joint change into embedded butt joint, thereby promote to contact compressive capacity.

Further, well axle bar 5 rotates with valve body 1 to be connected, the equal fixed mounting in top and the bottom of well axle bar 5 has the stopper that extends to roof or interior diapire in the valve body 1, right valve plate 7 and left valve plate 8 are semi-circular, the resettlement groove that corresponds with well axle bar 5 is seted up to right valve plate 7 and the relative one side of left valve plate 8, the quantity of torsional spring 6 is two, two relative one sides of torsional spring 6 do not fixed mounting have with right valve plate 7 and left valve plate 8 fixed connection's connecting plate 9, the quantity of seal cover 10 is two, two seal covers 10 are located two one side that the torsional spring 6 is carried on the back mutually respectively, through seal cover 10 with well axostylus axostyle 5 and the gap of right valve plate 7 and left valve plate 8 stifled.

Further, right sealing ring 11 is located the back of right valve plate 7, right sealing ring 11 contacts with right loose ring 13, right sealing ring 11 is the semicircle ring-type with right loose ring 13, left sealing ring 12 is located the front of left valve plate 8, left sealing ring 12 contacts with left loose ring 14, when liquid takes place against the current, right valve plate 7 and left valve plate 8 can be the antiport under the drive of liquid, until right valve plate 7 and left valve plate 8 are the vertical state with the inner wall of valve body 1, thereby seal the gap, make liquid unable the leakage.

This embodiment is when using, when lieing in the pipeline butt joint, advance in butt joint groove 3 with one section of embedding of pipeline protrusion, then fasten through the bolt, butt joint board 2 and pipeline's butt joint is transformed into mutual embedding by traditional plane butt joint, can promote to contact compressive capacity, when liquid takes place the adverse current in the pipeline, right valve plate 7 and left valve plate 8 can be the antiport under the drive of liquid, until right valve plate 7 and left valve plate 8 are the vertical state with the inner wall of valve body 1, at this moment, right sealing ring 11 contacts with right loose ring 13, left sealing ring 12 contacts with left loose ring 14, thereby seal all gaps, make liquid can't pass the valve body.

The beneficial effects of the above embodiment are as follows: the marine butterfly check valve with the leakage prevention function has the advantages that the sealing sleeve 10 fixedly connected with the right valve plate 7 and the left valve plate 8 is arranged on the surface of the middle shaft rod 5, so that no gap exists between the right valve plate 7 and the left valve plate 8, liquid leakage from the middle shaft rod 5 is effectively avoided, in addition, the inner walls of the left side and the right side of the valve body 1 are respectively provided with the left sealing ring 12 and the right sealing ring 11, the back surface of the right valve plate 7 is provided with the right movable ring 13, the front surface of the left valve plate 8 is provided with the left movable ring 14, and the check valve can only rotate in one direction, so when liquid in a pipeline flows reversely, the right valve plate 7 and the left valve plate 8 are vertical to the inner wall of the valve body 1, at the moment, the right sealing ring 11 is in contact with the right movable ring 13, the left sealing ring 12 is in contact with the left movable ring 14, the liquid can not pass through the valve body, and the leakage prevention purpose is effectively improved, finally, the butt joint groove 3 has all been seted up to one side that two butt joint boards 2 carried on the back mutually, and when docking with the pipeline, the embedding advances in the pipeline to dock in the groove 3, is changed into mutual embedding by traditional plane butt joint between butt joint board 2 and the pipeline, can promote to contact compressive capacity to liquid leakage has further been prevented.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A marine butterfly check valve with prevent leaking function, includes valve body (1), its characterized in that: a valve core structure is arranged in the valve body (1), and a sealing leakage-proof mechanism is arranged in the valve body (1) and used for preventing leakage;

the valve core structure comprises a middle shaft rod (5) movably mounted in the valve body (1), a torsion spring (6) is movably mounted on the surface of the middle shaft rod (5), a right valve plate (7) is movably mounted on the right side of the middle shaft rod (5), and a left valve plate (8) is movably mounted on the left side of the middle shaft rod (5);

the sealing and leakage-preventing mechanism comprises a sealing sleeve (10) movably mounted on the surface of a middle shaft rod (5), a right sealing ring (11) is fixedly mounted on the inner wall of the right side of the valve body (1), a left sealing ring (12) is fixedly mounted on the inner wall of the left side of the valve body (1), a right movable ring (13) is fixedly mounted on the back of the right valve plate (7), and a left movable ring (14) is fixedly mounted on the front of the left valve plate (8).

2. A butterfly check valve for a ship having a leakage preventing function according to claim 1, wherein: the equal fixed mounting in both ends of valve body (1) has dock plate (2), two dock groove (3) have all been seted up to dock plate (2) one side of carrying on the back mutually, and the inner wall fixed mounting in dock groove (3) has sealing washer (4), and dock plate (2) are ring shape, and the diameter of dock plate (2) is greater than the diameter of valve body (1), and four butt joint screw holes are installed to the surface equidistance of dock plate (2).

3. A butterfly check valve for a ship having a leakage preventing function according to claim 2, wherein: the butt joint groove (3) is an annular groove, the inner diameter of the butt joint groove (3) is equal to that of the valve body (1), the thickness of the butt joint groove (3) is one half of that of the butt joint plate (2), and the sealing ring (4) is an annular rubber ring.

4. A butterfly check valve for a ship having a leakage preventing function according to claim 3, wherein: well axostylus axostyle (5) is connected with valve body (1) rotation, and the top of well axostylus axostyle (5) and the equal fixed mounting in bottom have the stopper that extends to roof or interior diapire in valve body (1), and right valve plate (7) and left valve plate (8) are semi-circular, and the arrangement groove that corresponds with well axostylus axostyle (5) is seted up to right valve plate (7) and left valve plate (8) one side relative.

5. A butterfly check valve for a ship having a leakage preventing function according to claim 4, wherein: the quantity of torsional spring (6) is two, and two torsional spring (6) relative one side do not fixed mounting have with right valve plate (7) and left valve plate (8) fixed connection's connecting plate (9), and the quantity of seal cover (10) is two, and two seal covers (10) are located one side that two torsional spring (6) carried on the back mutually respectively.

6. A butterfly check valve for a ship having a leakage preventing function according to claim 5, wherein: the right sealing ring (11) is located on the back face of the right valve plate (7), the right sealing ring (11) is in contact with the right movable ring (13), the right sealing ring (11) and the right movable ring (13) are semicircular, the left sealing ring (12) is located on the front face of the left valve plate (8), and the left sealing ring (12) is in contact with the left movable ring (14).