CN210510315U

CN210510315U - Double-eccentric high-performance butterfly valve

Info

Publication number: CN210510315U
Application number: CN201921590536.8U
Authority: CN
Inventors: 卓建全
Original assignee: Hangzhou Tyco Valve Technology Co Ltd
Current assignee: Hangzhou Tyco Valve Technology Co Ltd
Priority date: 2019-09-24
Filing date: 2019-09-24
Publication date: 2020-05-12
Anticipated expiration: 2029-09-24

Abstract

The utility model discloses a double-eccentric high-performance butterfly valve, it includes valve body, butterfly plate, gear box, mount pad, fixing base, limiting plate, pivot and handle, the butterfly plate is located in the valve body, the gear box is located on the valve body, the fixing base is located one side of gear box, and the mount pad is located between fixing base and the gear box, the limiting plate is located on the mount pad, be equipped with the spacing groove on the limiting plate, the handle is located the fixing base upside, the pivot is located on the handle, the one end that the handle was kept away from in the pivot runs through the gear box and links to each other with the butterfly plate; the utility model belongs to the technical field of valve equipment uses, specifically provide a simple structure, low in production cost easily adjusts the use angle of butterfly valve and butterfly rod, makes the butterfly plate have self-locking ability, and the butterfly plate can stop on the optional position to the control fluid flow rate improves the operating performance of butterfly valve, and easy user's maintenance reduces the cost double-offset high performance butterfly valve of maintenance simultaneously.

Description

Double-eccentric high-performance butterfly valve

Technical Field

The utility model belongs to the technical field of valve equipment uses, specifically indicate two eccentric high performance butterfly valves.

Background

The butterfly valve is also called a flap valve, is a regulating valve with simple structure, and can be used for on-off control of low-pressure pipeline media. The butterfly valve uses a circular butterfly plate as an opening and closing member and rotates with a valve rod to open, close and regulate a fluid passage. The butterfly plate of the butterfly valve is installed in the diameter direction of the pipeline. In the cylindrical channel of the butterfly valve body, the disc-shaped butterfly plate rotates around the axis, the rotation angle is 0-90 degrees, and when the disc-shaped butterfly plate rotates to 90 degrees, the valve is in a full-open state. The butterfly valve is a valve in which a closing member (a valve clack or a butterfly plate) is a disk and rotates around a valve shaft to open and close, and mainly plays a role in cutting and throttling on a pipeline. 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 opening and closing or adjusting purpose is achieved. The butterfly valve is normally less than 90 ° wide open to full closed. The double eccentric effect enables the butterfly plate to be separated from the valve seat after the valve is opened, thereby greatly eliminating unnecessary excessive extrusion and scraping phenomena of the butterfly plate and the valve seat, reducing the opening resistance distance, reducing the abrasion and prolonging the service life of the valve seat. The scraping is greatly reduced, and meanwhile, the double-eccentric butterfly valve can also adopt a metal valve seat, so that the application of the butterfly valve in the high-temperature field is improved.

The butterfly valve of present domestic production, butterfly valve and butterfly rod itself do not have the auto-lock ability, for the location of butterfly plate, will install worm gear reducer additional on the valve rod, this has just caused the butterfly valve structure complicacy, it is more complicated to make butterfly valve production and processing, manufacturer's manufacturing cost has been improved simultaneously, the butterfly valve is in long-term use, turbine reducer is because long-time wearing and tearing, easy damage, need dismantle whole butterfly valve down when the user is to this maintenance, make maintenance work complicated, be unfavorable for the maintenance.

Disclosure of Invention

For solving the above-mentioned current difficult problem, the utility model provides a simple structure, low in production cost easily adjusts the use angle of butterfly valve and butterfly rod, makes the butterfly plate have the auto-lock ability, and the butterfly plate can stop on the optional position to the control fluid flow rate improves the operating performance of butterfly valve, and easy user's maintenance reduces the two eccentric high performance butterfly valves of cost of maintenance simultaneously.

The utility model adopts the technical scheme as follows: a double-eccentric high-performance butterfly valve comprises a valve body, a butterfly plate, a gear box, a mounting seat, a fixing seat, a limiting plate, a rotating shaft and a handle, wherein the butterfly plate is arranged in the valve body, the gear box is arranged on the valve body, the fixing seat is arranged on one side of the gear box, the mounting seat is arranged between the fixing seat and the gear box, the limiting plate is arranged on the mounting seat, a limiting groove is formed in the limiting plate, the handle is arranged on the upper side of the fixing seat, the rotating shaft is arranged on the handle, one end, far away from the handle, of the rotating shaft penetrates through the gear box and is connected with the butterfly plate, the handle comprises a fixing part, a moving part and a handle, one end of the fixing part is rotatably arranged on the rotating shaft, the moving part is arranged on the fixing part, a hinge, and the movable part is provided with a clamping piece matched with the limiting groove.

Further, be equipped with the sealing washer between valve body and the butterfly plate, the material of sealing washer is soft T type both sides multilayer stainless steel sheet, has the metal and seals the dual advantage with soft seal firmly, improves the sealed effect of butterfly valve.

Further, the fixing seat and the mounting seat can be connected and spliced through a flange, and preferably, the fixing seat and the mounting seat are connected through threads, so that a user can conveniently detach and maintain the fixing seat.

Furthermore, all be equipped with spacing hole on mounting and the moving part, spacing downthehole interpolation is equipped with the bolt for fixed moving part makes the moving part in the use clamping piece more inseparable with the spacing groove is fixed.

Further, be equipped with on the mounting and accomodate the groove, accomodate the inslot and be equipped with the fixture block, easily accomodate the bolt in accomodating the inslot, make the bolt difficult for losing.

Furthermore, an elastic rope is arranged between the fixing piece and the bolt, so that the bolt is not easy to lose.

Furthermore, the rubber block is arranged on the handle, so that a user can easily grasp the handle, and the friction force is increased.

After the structure is adopted, the utility model discloses beneficial effect as follows: this scheme double-eccentric high performance butterfly valve, a structure is simple, adopt operating handle on hand, low in production cost, setting through limiting plate and spacing groove, the user adjusts the use angle of butterfly valve and butterfly rod easily, can satisfy the effect of current-limiting speed limit, make the butterfly plate have the locking ability, the butterfly plate can stop on the optional position, improve the operating performance of butterfly valve, through the threaded connection mode, the user easily carries out timely maintenance change to the part of damage or wearing and tearing, reduce the cost of maintenance, user's spending is saved.

Drawings

FIG. 1 is a schematic structural view of a double-eccentric high-performance butterfly valve of the present invention;

FIG. 2 is a schematic view of a portion of the structure of the double-eccentric high-performance butterfly valve of the present invention;

fig. 3 is the utility model discloses two eccentric high performance butterfly valve limiting plate main views.

The novel butterfly valve comprises a valve body 1, a valve body 2, a butterfly plate 3, a gear box 4, a mounting seat 5, a fixing seat 6, a limiting plate 7, a rotating shaft 8, a handle 9, a limiting groove 10, a fixing piece 11, a moving piece 12, a handle 13, a telescopic piece 14, a spring 15, a clamping piece 16, a limiting hole 17, a bolt 18, a containing groove 19, a clamping block 20, an elastic rope 21 and a rubber block.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

As shown in fig. 1-3, a double-eccentric high-performance butterfly valve comprises a valve body 1, a butterfly plate 2, a gear box 3, a mounting seat 4, a fixing seat 5, a limiting plate 6, a rotating shaft 7 and a handle 8, wherein the butterfly plate 2 is arranged in the valve body 1, the gear box 3 is arranged on the valve body 1, the fixing seat 5 is arranged on one side of the gear box 3, the mounting seat 4 is arranged between the fixing seat 5 and the gear box 3, the limiting plate 6 is arranged on the mounting seat 4, a limiting groove 9 is arranged on the limiting plate 6, the handle 8 is arranged on the upper side of the fixing seat 5, the rotating shaft 7 is arranged on the handle 8, one end of the rotating shaft 7 far away from the handle 8 penetrates through the gear box 3 and is connected with the butterfly plate 5, the handle 8 comprises a fixing part 10, a moving part 11 and a handle 12, one end of the fixing part 10 is rotatably, an expansion piece 13 is arranged between the fixed piece 10 and the moving piece 11, a spring 14 is sleeved outside the expansion piece 13, the handle 12 is arranged on the moving piece 11, and a clamping piece 15 matched with the limiting groove 9 is arranged on the moving piece 11.

Wherein, be equipped with the sealing washer between valve body 1 and butterfly plate 2, the material of sealing washer is soft T type both sides multilayer stainless steel sheet, has the double advantage of metal hard seal and soft seal, improves the sealed effect of butterfly valve, can pass through flange joint between fixing base 5 and the mount pad 4, peg graft, preferably, pass through threaded connection between fixing base 5 and the mount pad 4, can the convenience of customers dismantles the maintenance, all be equipped with spacing hole 16 on fixing piece 10 and the moving part 11, the interpolation of spacing hole 16 is equipped with bolt 17 for fixed moving part 11, makes moving part 11 fix with spacing groove 9 during the use closure member 15 more closely, be equipped with on the fixing piece 10 and accomodate the groove 18, be equipped with fixture block 19 in accomodating the groove 18, easily accomodate bolt 17 in accomodating the groove 18, make bolt 17 difficult the losing, be equipped with elasticity rope 20 between fixing piece 10 and bolt 17, the bolt 17 is not easy to lose, and the rubber block 21 is arranged on the handle 12, so that a user can easily grasp the handle 12 to increase friction force.

When the butterfly valve is used in detail, a user installs the butterfly valve on a pipeline, when the user needs to open the butterfly valve, the user holds the handle 8 by hand, the handle 12 on the moving part 11 is forced to be close to the fixing part 10, the telescopic part 13 between the fixing part 10 and the moving part 11 is contracted, the spring 14 is also compressed, the clamping part 15 on the moving part 11 is far away from the limiting plate 6, the handle 8 is rotated to a required angle, the rotating shaft 7 connected with the handle 8 can drive the butterfly plate 2 in the valve body 1 to rotate, the handle 8 is loosened, the moving part 11 can rebound under the action of the telescopic part 13 and the spring 14, the clamping part 15 clamps the limiting groove 9 on the limiting plate 6, the user can take out the bolt 17 from the accommodating groove 18 and insert the bolt 17 into the limiting hole 16 on the handle 8, so that the clamping part 15 is clamped with the limiting groove 9 more tightly, the function of limiting can be realized, and the user can freely adjust the flow of, the operation is more convenient and faster, and the threaded connection mode also enables the maintenance cost to be relatively low.

The present invention and the embodiments thereof have been described above, but the description is not limited thereto, and the embodiment shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. In summary, those skilled in the art should understand that they should not be limited to the embodiments described above, and that they can design the similar structure and embodiments without departing from the spirit of the invention.

Claims

1. Double-eccentric high-performance butterfly valve, its characterized in that: comprises a valve body, a butterfly plate, a gear box, a mounting seat, a fixed seat, a limit plate, a rotating shaft and a handle, the butterfly plate is arranged in the valve body, the gear box is arranged on the valve body, the fixed seat is arranged on one side of the gear box, the mounting seat is arranged between the fixing seat and the gear box, the limiting plate is arranged on the mounting seat, a limiting groove is arranged on the limiting plate, the handle is arranged on the upper side of the fixed seat, the rotating shaft is arranged on the handle, one end of the rotating shaft, which is far away from the handle, penetrates through the gear box and is connected with the butterfly plate, the handle comprises a fixed part, a movable part and a handle, one end of the fixed part is rotatably arranged on the rotating shaft, the movable part is arranged on the fixed part, and the movable part is hinged with the fixed part, an expansion part is arranged between the fixed part and the movable part, a spring is sleeved outside the expansion part, the handle is arranged on the moving part, and the moving part is provided with a clamping piece matched with the limiting groove.

2. The double-eccentric high-performance butterfly valve of claim 1, wherein: a sealing ring is arranged between the valve body and the butterfly plate, and the sealing ring is made of a plurality of layers of stainless steel sheets on two sides of the soft T-shaped structure.

3. The double-eccentric high-performance butterfly valve of claim 1, wherein: the fixed seat is connected with the mounting seat through threads.

4. The double-eccentric high-performance butterfly valve of claim 1, wherein: the fixed piece and the movable piece are both provided with limiting holes, and bolts are inserted into the limiting holes.

5. The double-eccentric high-performance butterfly valve of claim 1, wherein: the fixing piece is provided with a containing groove, and a clamping block is arranged in the containing groove.

6. The double-eccentric high-performance butterfly valve of claim 1, wherein: an elastic rope is arranged between the fixing piece and the bolt.

7. The double-eccentric high-performance butterfly valve of claim 1, wherein: the handle is provided with a rubber block.