CN218454968U

CN218454968U - Butterfly valve is with strengthening seal structure

Info

Publication number: CN218454968U
Application number: CN202223081387.7U
Authority: CN
Inventors: 王立; 张海宽; 王熙康
Original assignee: Zhejiang Huamu Environment Engineering Co ltd
Current assignee: Zhejiang Huamu Environment Engineering Co ltd
Priority date: 2022-11-21
Filing date: 2022-11-21
Publication date: 2023-02-07
Anticipated expiration: 2032-11-21

Abstract

The utility model provides a butterfly valve is with strengthening seal structure relates to butterfly valve technical field, including valve body, valve plate and disk seat, the valve plate is installed in the inside rotation of valve body, the right side of valve body is equipped with the disk seat, the top of valve plate is equipped with the dwang, the left side of the inside of valve plate is equipped with the valve rod, the dwang is connected with the valve rod through drive mechanism, the inside of disk seat is equipped with the sealing mechanism who matches with the valve rod; the utility model discloses a sealing mechanism who matches with the valve rod sets up in the inside of disk seat, and when the in-process that the valve plate was opened, the screw thread piece that belongs to among the sealing mechanism when on the valve rod drove the slider and slides forward in the disk seat, and when the slider moved the position of straining ring and disk seat inner groovy coincidence, the elasticity accessible case extrusion tensioning circle that the spring produced was in the same place with the groove binding to make case self mutually support with the straining ring and seal the inside of disk seat, and then promote the holistic leakproofness of butterfly valve.

Description

Butterfly valve is with strengthening seal structure

Technical Field

The utility model relates to a butterfly valve technical field especially relates to a butterfly valve is with strengthening seal structure.

Background

A butterfly valve, also called a flap valve, is a regulating valve with a simple structure, can be used for on-off control of low-pressure pipeline media, and is a valve, the closing part of which is a disk and rotates around a valve shaft to open and close, and 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. The butterfly valve 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 valve body in the valve body, so that the opening and closing or adjusting purpose is achieved;

the sealed main cladding of dependence at valve plate circumference outside rubber of current butterfly valve realizes, and long-time use can make frequent compression of rubber and ageing, contains impurity such as grains of sand, iron fillings again like the medium in the pipeline simultaneously, and this structure can lose sealed effect, influences life, consequently, the utility model provides a butterfly valve is with strengthening seal structure is used for solving above-mentioned problem.

SUMMERY OF THE UTILITY MODEL

To the above problem, the utility model provides a butterfly valve is with strengthening seal structure has solved the problem that leads to the leakproofness variation among the prior art because of rubber is ageing.

For realizing the purpose of the utility model, the utility model discloses a following technical scheme realizes: a reinforced sealing structure for a butterfly valve comprises a valve body, a valve plate and a valve seat, wherein the valve plate is rotatably arranged in the valve body, the valve seat is arranged on the right side of the valve body, a rotating rod is arranged at the top of the valve plate, a valve rod is arranged on the left side in the valve plate, the rotating rod is connected with the valve rod through a transmission mechanism, and a sealing mechanism matched with the valve rod is arranged in the valve seat;

the sealing mechanism comprises a sliding block, a threaded block, a spring, a valve core and a tensioning ring, the sliding block is arranged inside the valve seat, the threaded block is arranged on the outer side of the valve rod, the valve core is sleeved on the outer side of the valve rod, the threaded block is connected with the valve core through the spring, and the tensioning ring is arranged at one end of the sliding block.

The further improvement lies in that: the inside of slider is equipped with the screw thread face that matches with the screw thread piece, the inside upper end of disk seat and lower extreme symmetry are equipped with the spout, the slider passes through lug and spout sliding connection.

The further improvement lies in that: the upper end and the lower extreme of the inside of disk seat are equipped with the recess that matches with the tensioning ring, the one end symmetry of case is equipped with the inclined plane, the outside and the inclined plane of tensioning ring meet.

The further improvement lies in that: the outer side of the valve rod is provided with two sealing rings, one of the sealing rings is located at the joint of the valve rod and the valve body, the other sealing ring is located inside the valve seat, and the sealing rings are made of rubber.

The further improvement lies in that: drive mechanism includes worm and turbine, the bottom of dwang is connected with the worm, the turbine is installed in the internal rotation of disk seat, the outer wall meshing of worm and turbine, the inner wall of turbine is connected with the one end of valve rod.

The further improvement lies in that: the valve body is characterized in that a plurality of screw holes are formed in the outer side of the valve body and distributed annularly to form a flange structure, and the valve body is detachably connected with an external pipeline through bolts.

The beneficial effects of the utility model are that: the sealing mechanism who matches with the valve rod is set up in the inside of disk seat, and when the in-process that the valve plate was opened, the screw thread piece that belongs to among the sealing mechanism when on the valve rod drove the slider and slides forward in the disk seat, when the slider moved the position of straining ring and disk seat inner groovy coincidence, the elasticity accessible case extrusion straining ring that the spring produced combines together with the recess to make case self and straining ring mutually support and seal the inside of disk seat, and then promote the holistic leakproofness of butterfly valve.

Drawings

FIG. 1 is a front view of the present invention;

FIG. 2 is an enlarged view of a portion A of FIG. 1;

fig. 3 is a side view of the present invention.

Wherein: 1. a valve body; 2. a valve plate; 3. a valve seat; 4. rotating the rod; 5. a valve stem; 6. a slider; 7. a thread block; 8. a chute; 9. a spring; 10. a valve core; 11. a tension ring; 12. a seal ring; 13. a worm; 14. a turbine; 15. and (4) a bump.

Detailed Description

In order to deepen the understanding of the present invention, the following embodiments will be combined to make the present invention do further details, and the present embodiment is only used for explaining the present invention, and does not constitute the limitation of the protection scope of the present invention.

According to fig. 1, 2, 3, this embodiment has proposed a butterfly valve is with strengthening seal structure, including valve body 1, valve plate 2 and disk seat 3, valve plate 2 is installed to the inside rotation of valve body 1, the right side of valve body 1 is equipped with disk seat 3, the top of valve plate 2 is equipped with dwang 4, the inside left side of valve plate 2 is equipped with valve rod 5, dwang 4 passes through drive mechanism and is connected with valve rod 5, the inside of disk seat 3 is equipped with the sealing mechanism who matches with valve rod 5, accomplishes the back with the installation of valve body 1, can twist dwang 4 on the disk seat 3 and drive valve rod 5 rotatory through drive mechanism, and valve rod 5 drives the inside valve plate 2 of valve body 1 and rotates for the switch of control valve body 1, and then whether the rivers in the control duct circulate.

Drive mechanism includes worm 13 and turbine 14, the bottom of dwang 4 is connected with worm 13, the internal rotation of disk seat 3 installs turbine 14, worm 13 and turbine 14's outer wall meshing, the inner wall of turbine 14 is connected with the one end of valve rod 5, and when twisting dwang 4, dwang 4 drives worm 13 and rotates, and worm 13 drives turbine 14 and rotates, and turbine 14 drives valve rod 5 and rotates for valve rod 5 can drive valve plate 2 and rotate, and then adjusts the flow of water.

Sealing mechanism includes slider 6, thread block 7, spring 9, case 10 and tension ring 11, slider 6 sets up the inside at disk seat 3, the outside of valve rod 5 is equipped with thread block 7, the outside cover of valve rod 5 is equipped with case 10, thread block 7 passes through spring 9 and is connected with case 10, the one end of slider 6 is equipped with tension ring 11, the inside of slider 6 is equipped with the helicoid that matches with thread block 7, the inside upper end of disk seat 3 and lower extreme symmetry are equipped with spout 8, slider 6 passes through lug 15 and spout 8 sliding connection, the inside upper end and the lower extreme of disk seat 3 are equipped with the recess that matches with tension ring 11, the one end symmetry of case 10 is equipped with the inclined plane, the outside and the inclined plane of tension ring 11 meet, when twisting dwang 4 and driving valve rod 5 and just passing, valve rod 5 drives valve plate 2 and is in the open mode in valve body 1, and thread block 7 on the valve rod 5 drives slider 6 through mutually supporting with the helicoid of slider 6 and drives slider 6 and move forward inside disk seat 3, and then the sealed 10 that the spring seat itself promotes the recess before slider 10, thereby the sealed recess that the elasticity self promotes the butterfly valve seat 10 that the elasticity is in the same.

The outside of valve rod 5 is equipped with two sealing washer 12, one of them sealing washer 12 is located valve rod 5 and valve body 1's junction, another sealing washer 12 is located the inside of disk seat 3, sealing washer 12's material is rubber, installs two sealing washer 12 respectively at the both ends of valve rod 5, and the both ends of valve rod 5 are connected with valve body 1 and disk seat 3 respectively, and the leakproofness of rubber is good, is convenient for further promotion butterfly valve's sealing capacity.

The outward appearance of valve body 1 is equipped with a plurality of screws, and is a plurality of the screw is the annular and distributes and form the flange structure, valve body 1 can dismantle with external pipeline through the bolt and be connected, docks a plurality of screws on the valve body 1 and the screw of external pipeline earlier, passes the bolt from the screw again, screws up it through the nut, makes things convenient for valve body 1 and external pipe connection.

This butterfly valve, the inside at disk seat 3 sets up the sealing mechanism who matches with valve rod 5, sealing mechanism is by slider 6, thread block 7, spring 9, case 10 and straining ring 11 are constituteed, in-process when the valve plate 2 is opened, thread block 7 on the valve rod 5 drives slider 6 and moves forward in disk seat 3 is inside, when slider 6 moves

tensioning ring

11 and 3 inner groovy coincidence's of disk seat position, the elasticity that is in shrink state spring 9 production can drive case 10 and move forward, case 10 rethread inclined plane extrusion tensioning ring 11 and groove joint of both ends are in the same place about it, thereby make case 10 self and tensioning ring 11 mutually support and seal the inside of disk seat 3, and then promote the holistic leakproofness of butterfly valve.

The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a butterfly valve is with strengthening seal structure, includes valve body (1), valve plate (2) and disk seat (3), its characterized in that: a valve plate (2) is rotatably mounted inside the valve body (1), a valve seat (3) is arranged on the right side of the valve body (1), a rotating rod (4) is arranged at the top of the valve plate (2), a valve rod (5) is arranged on the left side inside the valve plate (2), the rotating rod (4) is connected with the valve rod (5) through a transmission mechanism, and a sealing mechanism matched with the valve rod (5) is arranged inside the valve seat (3);

sealing mechanism includes slider (6), screw thread piece (7), spring (9), case (10) and tensioning ring (11), slider (6) set up the inside at disk seat (3), the outside of valve rod (5) is equipped with screw thread piece (7), the outside cover of valve rod (5) is equipped with case (10), screw thread piece (7) are connected with case (10) through spring (9), the one end of slider (6) is equipped with tensioning ring (11).

2. The reinforced seal structure for a butterfly valve according to claim 1, wherein: the inside of slider (6) is equipped with the screw thread face that matches with screw block (7), the inside upper end and the lower extreme symmetry of disk seat (3) are equipped with spout (8), slider (6) are through lug (15) and spout (8) sliding connection.

3. The reinforced seal structure for a butterfly valve according to claim 1, wherein: the upper end and the lower extreme of the inside of disk seat (3) are equipped with the recess that matches with tension ring (11), the one end symmetry of case (10) is equipped with the inclined plane, the outside and the inclined plane of tension ring (11) meet.

4. The reinforced seal structure for a butterfly valve according to claim 1, wherein: the outer side of the valve rod (5) is provided with two sealing rings (12), one of the sealing rings (12) is located at the joint of the valve rod (5) and the valve body (1), the other sealing ring (12) is located inside the valve seat (3), and the sealing ring (12) is made of rubber.

5. The reinforced seal structure for a butterfly valve according to claim 1, wherein: drive mechanism includes worm (13) and turbine (14), the bottom of dwang (4) is connected with worm (13), turbine (14) are installed to the inside rotation of disk seat (3), the outer wall meshing of worm (13) and turbine (14), the inner wall of turbine (14) is connected with the one end of valve rod (5).

6. The reinforced seal structure for a butterfly valve according to claim 1, wherein: the outer side of valve body (1) is equipped with a plurality of screws, and is a plurality of the screw is the annular and distributes and form flange structure, valve body (1) can be dismantled with external pipeline through the bolt and be connected.