CN210068975U

CN210068975U - Novel butterfly valve

Info

Publication number: CN210068975U
Application number: CN201920509002.1U
Authority: CN
Inventors: 贾宪芹
Original assignee: Laike Valve Tianjin Co Ltd
Current assignee: Laike Valve Tianjin Co Ltd
Priority date: 2019-04-16
Filing date: 2019-04-16
Publication date: 2020-02-14
Anticipated expiration: 2029-04-16

Abstract

The utility model discloses a novel butterfly valve, including valve body and the vertical valve rod that runs through the valve body, fixed cover is equipped with the valve plate on the lateral wall of valve rod, the valve plate cooperatees with the inner wall of valve body and links up, the top of valve body is equipped with the valve gap, the top of valve rod is run through to valve gap and fixedly connected with handle, the bottom of valve body is equipped with the disk seat, be equipped with movable groove in the disk seat, the bottom of valve rod is run through to movable inslot, movable inslot fixed mounting has drive mechanism, the bottom and the drive mechanism fixed connection of valve rod, be equipped with stop gear between the inner wall of drive mechanism and movable groove, the inside of valve body be equipped with valve plate lateral wall assorted sealing mechanism. The utility model discloses compact structure, convenient operation can play spacing and positioning action to the motion of valve rod, sets up a plurality of seal structure simultaneously, improves the leakproofness of valve body.

Description

Novel butterfly valve

Technical Field

The utility model relates to a butterfly valve technical field especially relates to a novel butterfly valve.

Background

The butterfly valve is a regulating valve with a relatively simple structure, and is generally used for mainly 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 pipe mainly plays a role in cutting off and throttling.

The valve mainly conveys various types of fluid and gas, so that the sealing performance of the valve is particularly important, the sealing performance of the existing butterfly valve is poor, and the corrosion resistance of the existing butterfly valve is required to be improved; and the stability effect of the existing butterfly valve in the opening and closing process and the positioning effect after opening and closing are also required to be improved.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing a novel butterfly valve.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a novel butterfly valve, includes valve body and the vertical valve rod that runs through the valve body, fixed cover is equipped with the valve plate on the lateral wall of valve rod, the valve plate cooperatees with the inner wall of valve body and links up, the top of valve body is equipped with the valve gap, the top of valve rod runs through to valve gap and fixedly connected with handle, the bottom of valve body is equipped with the disk seat, be equipped with the movable groove in the disk seat, the bottom of valve rod runs through to the movable groove in, movable groove fixed mounting has drive mechanism, the bottom and the drive mechanism fixed connection of valve rod, be equipped with stop gear between the inner wall of drive mechanism and movable groove, the inside of valve body be equipped with valve plate lateral wall assorted.

Preferably, the transmission mechanism comprises a first transmission gear and a second transmission gear which are rotatably connected to the bottom in the movable groove, the first transmission gear is in meshing transmission connection with the second transmission gear, and the bottom end of the valve rod is fixedly connected with the top end of the first transmission gear.

Preferably, the inner walls of the upper end and the lower end of the valve body are fixedly provided with an upper sealing ring and a lower sealing ring which correspond to the valve rod in position, and the upper sealing ring and the lower sealing ring are synthetic rubber O-shaped sealing rings.

Preferably, stop gear includes the gag lever post of fixed connection on first drive gear top, fixedly connected with and the first limiting plate and the second limiting plate that the gag lever post position corresponds on the inner wall of activity groove, and first limiting plate and second limiting plate are ninety degrees vertical settings.

Preferably, sealing mechanism includes that fixed cover establishes the sealed pad of first arc and the sealed pad of second arc on the relative inner wall of valve body, the sealed pad of first arc and the sealed pad of second arc respectively with the both sides lateral wall counterbalance of valve plate, and the sealed pad of first arc and the sealed pad of second arc are made by the polytetrafluoroethylene material.

Preferably, arc seal grooves are formed in the side walls of the first arc seal pad and the second arc seal pad, and the two arc seal grooves are arranged on the back faces of the two arc seal grooves.

Compared with the prior art, the utility model, beneficial effect does:

1. the sealing performance between the valve body and the valve plate and between the valve body and the valve rod is improved by fixedly mounting the first arc-shaped sealing gasket and the second arc-shaped sealing gasket on the inner wall of the valve body and mounting the upper sealing ring and the lower sealing ring inside the upper end and the lower end of the valve body, and the arc-shaped sealing gaskets are made of polytetrafluoroethylene materials, so that the corrosion resistance of the sealing gaskets is improved;

2. the transmission mechanism fixedly connected with the valve rod is fixedly arranged in the valve seat, the transmission mechanism is composed of transmission gears which are meshed with each other, and when the valve rod stops rotating, the valve rod is in a stable state when the valve rod is rotated artificially due to certain self-locking performance of meshing movement of the transmission gears;

3. through set up the stop gear to the valve rod operation in the disk seat, use through the cooperation of first limiting plate, second limiting plate and gag lever post, only can allow the valve rod to rotate at ninety degrees within range.

Drawings

Fig. 1 is a schematic structural view of a novel butterfly valve provided by the present invention;

fig. 2 is a top view of a valve seat of a novel butterfly valve provided by the present invention;

fig. 3 is a schematic view of a part of a structure of a joint of a valve body and a sealing mechanism of a novel butterfly valve provided by the present invention;

fig. 4 is a schematic view of a part of the structure of the sealing mechanism of the butterfly valve of the present invention.

In the figure: 1 valve body, 2 valve rods, 3 valve covers, 4 valve plates, 5 valve seats, 6 movable grooves, 7 first transmission gears, 8 second transmission gears, 9 limiting rods, 10 first limiting plates, 11 second limiting plates, 12 upper sealing rings, 13 lower sealing rings, 14 first arc-shaped sealing gaskets, 15 second arc-shaped sealing gaskets and 16 arc-shaped sealing grooves.

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.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Referring to fig. 1-4, a novel butterfly valve comprises a valve body 1 and a valve rod 2 vertically penetrating through the valve body 1, a valve plate 4 is fixedly sleeved on the side wall of the valve rod 2, the valve plate 4 is matched and connected with the inner wall of the valve body 1, a valve cover 3 is arranged at the top end of the valve body 1, the top end of the valve rod 2 penetrates through the valve cover 3 and is fixedly connected with a handle, the handle is rotated to drive the valve rod 2 to rotate, the valve rod 2 drives the valve plate 4 to open and close, a valve seat 5 is arranged at the bottom end of the valve body 1, a movable groove 6 is arranged in the valve seat 5, the bottom end of the valve rod 2 penetrates into the movable groove 6, an upper sealing ring 12 and a lower sealing ring 13 corresponding to the valve rod 2 are fixedly arranged at the inner wall of the upper end and the lower end of the valve body 1, the upper sealing ring 12 and the lower sealing ring 13, a transmission mechanism is fixedly arranged in the movable groove 6, the bottom end of the valve rod 2 is fixedly connected with the transmission mechanism, and the transmission mechanism runs along with the valve rod 2.

Concretely, drive mechanism is including rotating first drive gear 7 and the second drive gear 8 of connection in movable groove 6 bottom, and first drive gear 7 is connected with the meshing transmission of second drive gear 8, the bottom of valve rod 2 and the top fixed connection of first drive gear 7, and the meshing motion of first drive gear 7, second drive gear 8 has certain auto-lock nature, so can play certain positioning action to valve rod 2.

Be equipped with stop gear between drive mechanism and the inner wall of activity groove 6, stop gear plays spacing and fixed action to the rotation of valve rod 2, and is specific, stop gear includes the gag lever post 9 of fixed connection on 7 tops of first drive gear, and fixedly connected with and the first limiting plate 10 and the second limiting plate 11 that gag lever post 9 positions correspond on the inner wall of activity groove 6, and first limiting plate 10 and second limiting plate 11 are ninety degrees and set up perpendicularly.

The inside of valve body 1 is equipped with the 4 lateral wall assorted sealing mechanism of valve plate, it is concrete, sealing mechanism includes that fixed cover establishes first arc sealed 14 and the sealed 15 of second arc that seal on the 1 relative inner wall of valve body, first arc sealed 14 and the sealed 15 of second arc sealed respectively with the both sides lateral wall of valve plate 4 counterbalance, and first arc sealed 14 and the sealed 15 of second arc sealed are made by polytetrafluoroethylene material, arc seal groove 16 has all been seted up on the sealed 14 lateral wall of second arc sealed 15 of first arc sealed, and two arc seal grooves 16 set up back to back, when valve plate 4 is closed along with valve rod 2, the sealed 15 lateral walls of valve plate 4 both sides respectively with the sealed 16 of arc seal groove on the sealed 14 of first arc sealed and the sealed 15 lateral walls of second arc sealed, so improved the leakproofness between valve plate 4 and the 1 inner wall of valve body.

In the utility model, when using the butterfly valve, rotate the valve rod 2 through the handle, the valve rod 2 drives the valve plate 4 and opens and shuts the action, in the pivoted in-process of valve rod 2, the valve rod 2 bottom drives first drive gear 7 and rotates, first drive gear 7 drives second drive gear 8 and rotates, when valve rod 2 stopped moving, because first drive gear 7, second drive gear 8 meshing motion has certain auto-lock nature, so when stopping rotating valve rod 2, first drive gear 7, second drive gear 8 can be in relative quiescent condition, so valve rod 2 is in steady state under the condition of non-artificial rotation, first limiting plate 10, second limiting plate 11 that lie in the inside of valve seat 5 simultaneously are ninety degrees vertical settings, so only allow valve rod 2 to open, close or adjust the medium flow in ninety degrees;

set up first arc simultaneously and seal up 14, the sealed 15 of second arc on the relative inner wall of valve body 1, and first arc is sealed to seal up 14, the sealed 15 arc seal groove of second arc carries on the back the other side mutually and sets up, cooperation valve plate 4 its both sides when closed respectively with first arc sealed 14, the sealed 15 counterbalance of second arc sealed, when opening, valve plate 4 both sides rotate to first arc sealed 14, the sealed 15 opposite direction of second arc sealed respectively, and arc seal groove 16 then further plays sealed effect.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. A novel butterfly valve comprises a valve body (1) and a valve rod (2) vertically penetrating through the valve body (1), it is characterized in that a valve plate (4) is fixedly sleeved on the side wall of the valve rod (2), the valve plate (4) is matched and connected with the inner wall of the valve body (1), the top end of the valve body (1) is provided with a valve cover (3), the top end of the valve rod (2) penetrates through the valve cover (3) and is fixedly connected with a handle, a valve seat (5) is arranged at the bottom end of the valve body (1), a movable groove (6) is arranged in the valve seat (5), the bottom end of the valve rod (2) penetrates into the movable groove (6), a transmission mechanism is fixedly arranged in the movable groove (6), the bottom end of the valve rod (2) is fixedly connected with a transmission mechanism, a limit mechanism is arranged between the transmission mechanism and the inner wall of the movable groove (6), and a sealing mechanism matched with the outer side wall of the valve plate (4) is arranged in the valve body (1).

2. The novel butterfly valve according to claim 1, wherein the transmission mechanism comprises a first transmission gear (7) and a second transmission gear (8) which are rotatably connected to the bottom of the movable groove (6), the first transmission gear (7) is in meshing transmission connection with the second transmission gear (8), and the bottom end of the valve rod (2) is fixedly connected with the top end of the first transmission gear (7).

3. The novel butterfly valve according to claim 2, wherein an upper seal ring (12) and a lower seal ring (13) corresponding to the valve rod (2) are fixedly installed on the inner walls of the upper end and the lower end of the valve body (1), and the upper seal ring (12) and the lower seal ring (13) are both synthetic rubber O-shaped seal rings.

4. The novel butterfly valve according to claim 3, wherein the limiting mechanism comprises a limiting rod (9) fixedly connected to the top end of the first transmission gear (7), a first limiting plate (10) and a second limiting plate (11) corresponding to the position of the limiting rod (9) are fixedly connected to the inner wall of the movable groove (6), and the first limiting plate (10) and the second limiting plate (11) are vertically arranged at ninety degrees.

5. A novel butterfly valve according to claim 4, characterized in that said sealing means comprise a first arc-shaped gasket (14) and a second arc-shaped gasket (15) fixedly fitted on the opposite inner walls of the valve body (1), said first arc-shaped gasket (14) and said second arc-shaped gasket (15) respectively abut against the side walls of the valve plate (4), and said first arc-shaped gasket (14) and said second arc-shaped gasket (15) are made of Teflon.

6. A novel butterfly valve according to claim 5, characterized in that the side walls of the first arc-shaped sealing gasket (14) and the second arc-shaped sealing gasket (15) are provided with arc-shaped sealing grooves (16), and the two arc-shaped sealing grooves (16) are arranged oppositely.