CN213361110U

CN213361110U - Three-eccentric butterfly valve adjusting device

Info

Publication number: CN213361110U
Application number: CN202021836429.1U
Authority: CN
Inventors: 吴连峰; 刘荣霞; 邱琳熙; 张啸; 周游; 胡斌
Original assignee: Jiangsu Boteway Fluid Technology Co Ltd
Current assignee: Jiangsu Boteway Fluid Technology Co Ltd
Priority date: 2020-08-28
Filing date: 2020-08-28
Publication date: 2021-06-04
Anticipated expiration: 2030-08-28

Abstract

The utility model discloses a three-eccentric butterfly valve adjusting device, which comprises a valve body, wherein a valve rod is arranged inside the valve body, a valve plate is arranged outside the valve rod, a valve cover is arranged at the bottom end of the valve rod, an adjusting nut is arranged on the outer surface of the valve rod, a fixed seat is arranged inside the valve cover, a fixed lug is arranged outside the fixed seat, a screw is arranged inside the fixed lug in a penetrating manner, a through hole is arranged inside the valve cover, a connecting rod is arranged inside the through hole in a penetrating manner, a twisting sleeve is arranged at the lower end of the connecting rod, an internal thread is arranged on the inner wall of the; according to the adjusting device for the three-eccentric center butterfly valve, the valve rod is fixedly connected in the valve body through the adjusting nut, so that the condition that the valve plate interception effect is weakened due to the shaking of the valve rod is avoided; through setting up the fixing base, with the rotatory angle fixed of valve rod, can effectively avoid the valve rod to take place the angular deflection.

Description

Three-eccentric butterfly valve adjusting device

Technical Field

The utility model relates to a technical field is made to the butterfly valve, specifically is a three eccentric butterfly valve adjusting device.

Background

The butterfly valve is also called as a flap valve, is a regulating valve with simple structure, and can be used for the on-off control of low-pressure pipeline media, namely a valve with a closing member which is a disc and rotates around a valve shaft to open and close; the valve can be used for controlling the flow of various types of fluids such as air, water, steam, various corrosive media, slurry, oil products, liquid metal, radioactive media and the like, and mainly plays a role in cutting off and throttling on a pipeline, and the butterfly valve opening and closing piece is a disc-shaped butterfly plate and rotates around the axis of the butterfly plate in the valve body, so that the purpose of opening and closing or adjusting is achieved; the triple offset butterfly valve is a butterfly valve in which the axis of the valve rod deviates from the center of the disc and the center of the body at the same time, and the axis of rotation of the valve seat and the axis of the valve body channel form a certain angle.

In the use process of the existing triple-eccentric butterfly valve, the valve plate rotates around the valve rod in the valve body, so that the purpose of opening and closing the butterfly valve is achieved, but the valve rod is easy to generate angular deviation under the long-time action, so that the opening and closing effect of the valve plate is influenced, and the sealing property between the valve plate and the valve body is influenced; in addition, because the butterfly valve is used for a long time, internal parts are abraded or loosened, the valve rod can shake up and down in the valve body, and the closure effect of the valve plate is influenced.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a three eccentric butterfly valve adjusting device to the weak point of prior art to solve the problem that proposes in the background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a three eccentric butterfly valve adjusting device, includes the valve body, the inside valve rod that is provided with of valve body, the valve rod outside is provided with the valve plate, the valve rod bottom is provided with the valve gap, the valve plate upper end is provided with the uide bushing, the uide bushing upper end is provided with the stopping, the valve rod surface is provided with adjusting nut, the inside fixing base that is provided with of valve gap, the fixing base outside is provided with fixed ear, the inside screw that runs through of fixed ear is provided with, the inside through-hole that is provided with of valve gap, the inside coupling rod that runs through of through-hole, the coupling rod lower extreme is provided with turns round the cover, the adjusting nut inner wall is provided with the internal thread, the surface that.

As the utility model discloses an optimal technical scheme, uide bushing internal diameter size is the same with valve rod external diameter size, the uide bushing cup joints with the valve rod, uide bushing outer wall and valve body fixed connection.

As the utility model discloses a preferred technical scheme, adjusting nut internal diameter size and valve rod external diameter size looks adaptation, the internal thread accords with the external screw thread, adjusting nut passes through internal thread, external screw thread fixed connection with the valve rod.

As the utility model discloses an optimal technical scheme, valve gap and valve body fixed connection, valve gap internal diameter size and fixing base external diameter size looks adaptation, fixing base internal diameter size and valve rod external diameter size looks adaptation, fixing base and valve rod fixed connection.

As the utility model discloses an optimal technical scheme, fixed ear internal diameter size is the same with fixing base external diameter size, fixed ear and fixing base fixed connection, fixed ear width size and screw external diameter size looks adaptation, the screw runs through valve gap and fixed ear fixed connection, the fixing base is through fixed ear, screw and valve gap fixed connection.

As the utility model discloses a preferred technical scheme, through-hole internal diameter size and coupling bar external diameter size looks adaptation, the coupling bar runs through the through-hole, the coupling bar rotates with the through-hole to be connected, the coupling bar lower extreme runs through the valve gap and turns round cover fixed connection, coupling post upper end and fixing base fixed connection.

As the utility model discloses an optimal technical scheme, arch and valve gap fixed connection, protruding external diameter and recess internal diameter looks adaptation, it is two sets of protruding and recess quantity, it is protruding corresponding with groove position, protruding and recess sliding connection.

Compared with the prior art, the utility model provides a three eccentric butterfly valve adjusting device possesses following beneficial effect:

1. according to the adjusting device for the three-eccentric center butterfly valve, the adjusting nut is arranged, when internal parts of the butterfly valve are worn or loosened after long-term use, the valve rod swings up and down in the valve body, the adjusting nut can be rotated to enable the valve rod to extend relative to the adjusting nut, the valve rod is fixedly connected in the valve body, and the condition that the valve plate shutoff effect is weakened due to the fact that the valve rod swings is avoided;

2. this three eccentric butterfly valve adjusting device, through setting up the fixing base, it is rotatory to drive the valve plate when the valve rod, utilizes arch and recess sliding connection, prevents that the fixing base from driving the valve rod and rotates the skew, through running through fixed ear with the screw to make fixing base and valve gap fixed connection, thereby with the rotatory angle of valve rod fixed, can effectively avoid the valve rod to take place the angular deviation.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the structure of the valve cover of the present invention;

FIG. 3 is a schematic structural view of the structure adjusting nut of the present invention;

fig. 4 is a schematic view of the structure protrusion connection of the present invention.

In the figure: 1. a valve body; 2. a valve stem; 3. a valve plate; 4. a valve cover; 5. a guide sleeve; 6. a filler; 7. adjusting the nut; 8. a fixed seat; 9. fixing the ear; 10. a screw; 11. a through hole; 12. a coupling rod; 13. twisting a sleeve; 14. an internal thread; 15. an external thread; 16. a protrusion; 17. and (4) a groove.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, in this embodiment: the utility model provides a three eccentric butterfly valve adjusting device, including

valve body

1, 1 inside valve rod 2 that is provided with of valve body, 2 outsides of valve rod are provided with

valve plate

3, 2 bottoms of valve rod are provided with

valve gap

4, 3 upper ends of valve plate are provided with

uide bushing

5, 5 upper ends of uide bushing are provided with stopping 6, 2 surfaces of valve rod are provided with adjusting nut 7, the inside fixing base 8 that is provided with of

valve gap

4, 8 outsides of fixing base are provided with fixed ear 9, the inside screw 10 that runs through of fixed ear 9, the inside through-hole 11 that is provided with of valve gap 4, the inside coupling rod 12 that runs through of through-hole 11, coupling rod 12 lower extreme is provided with turns round

cover

13, 7 inner walls of adjusting nut are provided with internal thread 14, the surface that valve rod 2.

In the embodiment, the inner diameter of the guide sleeve 5 is the same as the outer diameter of the valve rod 2, the guide sleeve 5 is sleeved with the valve rod 2 and used for guiding when the valve rod 2 rotates, and the outer wall of the guide sleeve 5 is fixedly connected with the valve body 1 and used for fixing the guide sleeve 5; the inner diameter of the adjusting nut 7 is matched with the outer diameter of the valve rod 2, the inner thread 14 is matched with the outer thread 15, the adjusting nut 7 and the valve rod 2 can rotate conveniently, the valve rod 2 is driven to move upwards, and the adjusting nut 7 is fixedly connected with the valve rod 2 through the inner thread 14 and the outer thread 15, so that the valve rod 2 is fixedly connected in the valve body 1; the valve cover 4 is fixedly connected with the valve body 1, so that the valve cover 4 is fixedly connected with the valve body 1, the inner diameter of the valve cover 4 is matched with the outer diameter of the fixed seat 8, the inner diameter of the fixed seat 8 is matched with the outer diameter of the valve rod 2, the fixed seat 8 is fixedly connected with the valve rod 2, and the bottom of the valve rod 2 is fixed by the fixed seat 8; the inner diameter of the fixing lug 9 is the same as the outer diameter of the fixing seat 8, the fixing lug 9 is fixedly connected with the fixing seat 8, so that the fixing lug 9 is stable in structure, the width of the fixing lug 9 is matched with the outer diameter of the screw 10, the screw 10 penetrates through the valve cover 4 to be fixedly connected with the fixing lug 9 and is used for fixing the fixing seat 8 and preventing the fixing seat 8 from driving the valve rod 2 to deviate, and the fixing seat 8 is fixedly connected with the valve cover 4 through the fixing lug 9 and the screw 10 so that the fixing seat 8 is fixedly connected with the valve body 1 through the valve; the inner diameter of the through hole 11 is matched with the outer diameter of the connecting rod 12, the connecting rod 12 penetrates through the through hole 11 and is used for connecting the torsion sleeve 13 with the fixed seat 8, the connecting rod 12 is rotatably connected with the through hole 11 and is used for driving the fixed seat 8 to rotate by an angle, the lower end of the connecting rod 12 penetrates through the valve cover 4 and is fixedly connected with the torsion sleeve 13, the torsion sleeve 13 is rotated to provide power for the rotation of the valve rod 2, and the upper end of the connecting rod 12 is fixedly connected with the fixed seat 8 and is used for driving the fixed seat 8; protruding 16 and valve gap 4 fixed connection for fixed protruding 16, protruding 16 external diameter size and recess 17 internal diameter size looks adaptation, protruding 16 is two sets of with recess 17 quantity, protruding 16 is corresponding with recess 17 position, protruding 16 and recess 17 sliding connection, the fixing base 8 of being convenient for is at the internal rotation of valve gap 4, prevents that fixing base 8 from rotating the skew.

The utility model discloses a theory of operation and use flow: the user is at first not hard up with adjusting nut 7 with screw 10, then turn round cover 13, turn round cover 13 and drive hookup pole 12 at the 11 internal rotations of through-hole, hookup pole 12 drives fixing base 8 again and rotates, fixing base 8 drives valve rod 2 again and rotates, arch 16 slides in recess 17, prevent that fixing base 8 from driving valve rod 2 and rotate the skew, then valve rod 2 drives valve plate 3 rotatoryly, thereby realize the effect of opening and close to valve body 1, then just run through fixed ear 9 with screw 10, thereby make fixing base 8 and valve gap 4 fixed connection, thereby with the rotatory angle of valve rod 2 fixed, can effectively avoid valve rod 2 to take place the angle skew, again rotate adjusting nut 7, make the relative adjusting nut 7 extension of valve rod 2, with valve rod 2 fastening connection in valve body 1, avoided valve rod 2 to rock the condition that the effect of damming up of valve plate 3 and.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a three eccentric butterfly valve adjusting device which characterized in that: comprises a valve body (1), a valve rod (2) is arranged inside the valve body (1), a valve plate (3) is arranged outside the valve rod (2), a valve cover (4) is arranged at the bottom end of the valve rod (2), a guide sleeve (5) is arranged at the upper end of the valve plate (3), a filling material (6) is arranged at the upper end of the guide sleeve (5), an adjusting nut (7) is arranged on the outer surface of the valve rod (2), a fixing seat (8) is arranged inside the valve cover (4), a fixing lug (9) is arranged outside the fixing seat (8), a screw (10) is arranged inside the fixing lug (9) in a penetrating manner, a through hole (11) is arranged inside the valve cover (4), a connecting rod (12) is arranged inside the through hole (11), a twisting sleeve (13) is arranged at the lower end of the connecting rod (12), and, the outer surface of the valve rod (2) close to the adjusting nut (7) is provided with an external thread (15), a bulge (16) is arranged inside the valve cover (4), and a groove (17) is arranged inside the fixing seat (8).

2. A triple offset butterfly valve adjustment device according to claim 1, characterized in that: the inner diameter of the guide sleeve (5) is the same as the outer diameter of the valve rod (2), the guide sleeve (5) is sleeved with the valve rod (2), and the outer wall of the guide sleeve (5) is fixedly connected with the valve body (1).

3. A triple offset butterfly valve adjustment device according to claim 1, characterized in that: adjusting nut (7) internal diameter size and valve rod (2) external diameter size looks adaptation, internal thread (14) accord with external screw thread (15), adjusting nut (7) and valve rod (2) are through internal thread (14), external screw thread (15) fixed connection.

4. A triple offset butterfly valve adjustment device according to claim 1, characterized in that: valve gap (4) and valve body (1) fixed connection, valve gap (4) internal diameter size and fixing base (8) external diameter size looks adaptation, fixing base (8) internal diameter size and valve rod (2) external diameter size looks adaptation, fixing base (8) and valve rod (2) fixed connection.

5. A triple offset butterfly valve adjustment device according to claim 1, characterized in that: fixed ear (9) internal diameter size is the same with fixing base (8) external diameter size, fixed ear (9) and fixing base (8) fixed connection, fixed ear (9) width size and screw (10) external diameter size looks adaptation, screw (10) run through valve gap (4) and fixed ear (9) fixed connection, fixing base (8) are through fixed ear (9), screw (10) and valve gap (4) fixed connection.

6. A triple offset butterfly valve adjustment device according to claim 1, characterized in that: through-hole (11) internal diameter size and coupling bar (12) external diameter size looks adaptation, coupling bar (12) run through-hole (11), coupling bar (12) rotate with through-hole (11) and are connected, coupling bar (12) lower extreme runs through valve gap (4) and turns round cover (13) fixed connection, coupling bar (12) upper end and fixing base (8) fixed connection.

7. A triple offset butterfly valve adjustment device according to claim 1, characterized in that: the valve is characterized in that the protrusion (16) is fixedly connected with the valve cover (4), the outer diameter of the protrusion (16) is matched with the inner diameter of the groove (17), the number of the protrusion (16) and the number of the groove (17) are two, the positions of the protrusion (16) and the groove (17) are corresponding, and the protrusion (16) is connected with the groove (17) in a sliding manner.