CN113028079A - Prevent disk seat corrosion and dead silt-proof butterfly valve of card - Google Patents

Abstract

The invention discloses a silt-proof butterfly valve capable of preventing a valve seat from being rusted and stuck, which comprises a valve barrel, connecting holes and stop blocks, wherein the connecting holes are uniformly formed in the edge of the valve barrel, the stop blocks are symmetrically fixed on the inner wall of the valve barrel, an expandable valve plate is arranged in the valve barrel in a matched and rotating mode, and a filtering device matched with the valve plate for filtering is arranged at one end of the valve barrel.

Description

Prevent disk seat corrosion and dead silt-proof butterfly valve of card

Technical Field

The invention relates to the technical field of butterfly valves, in particular to a silt-proof butterfly valve capable of preventing a valve seat from being rusted and stuck.

Background

A butterfly valve, also called 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 which is opened and closed by rotating around a valve shaft, wherein a closing member (a valve clack or a butterfly plate) is a disk.

The multiple trouble can appear at specific use process in the butterfly valve, wherein the valve plate is obstructed can not be closed completely is comparatively common trouble, also comparatively serious trouble, its leading cause is owing to thoughtlessly have debris such as silt, rubble in the liquid of conduction, the rubble jam then leads to comparatively serious closed trouble in closed position when closing the valve plate, accumulational silt also can cause the slight closure imperfectly of valve plate simultaneously, thereby lead to the situation emergence of butterfly valve shutoff inefficacy, for this, we provide one kind and prevent that disk seat corrosion and card are dead prevents silt type butterfly valve.

Disclosure of Invention

The invention aims to provide a silt-proof butterfly valve which prevents a valve seat from being rusted and stuck so as to solve the problems in the prior art.

In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a prevent disk seat corrosion and card dead silt-proof butterfly valve, includes valve barrel, connecting hole and dog, the connecting hole has evenly been seted up at valve barrel edge, valve barrel inner wall symmetry is fixed with the dog, the inside cooperation of valve barrel is rotated and is installed the expandable valve plate, valve barrel one end is installed the cooperation valve plate and is carried out filterable filter equipment.

Preferably, the valve plate includes plate body, pivot, transmission shaft, gear, rack, rubber layer, expansion groove, expands board and drive groove, the plate body top is fixed with the pivot, and pivot and barrel rotate to be connected, the expansion groove has been seted up to the inside bilateral symmetry of plate body, the edge parcel in expansion groove has the rubber layer, it is provided with the expansion board to expand inslot portion, the plate body is inside to be seted up with the drive groove of expansion groove intercommunication, the transmission shaft is installed in pivot and the inside rotation of plate body, the bottom of transmission shaft is located the drive inslot and is fixed with the gear, gear bilateral symmetry meshing has the rack, and rack and expansion board fixed connection.

Preferably, the inner wall of the driving groove is provided with a sliding groove, the edge of the rack is fixed with a sliding block, and the sliding block is connected with the sliding groove in a sliding manner.

Preferably, the rubber layer is made of high-elasticity composite rubber.

Preferably, the edge of the valve plate is symmetrically fixed with a hairbrush, and the hairbrush is contacted with the inner wall of the valve barrel.

Preferably, filter equipment includes filter screen, circle board and caulking groove, the caulking groove has been seted up to valve section of thick bamboo one end, be provided with the filter screen in the caulking groove, the filter screen edge is fixed with the circle board, and circle board and caulking groove structure cooperation.

Preferably, the surface of the caulking groove is symmetrically provided with positioning holes, the surface of the ring plate is symmetrically fixed with positioning columns, and the positioning columns are matched and spliced with the positioning holes.

Preferably, the screen is spherical.

Preferably, the valve cylinder is made of cast iron material.

Compared with the prior art, the invention has the beneficial effects that:

the invention effectively prevents larger gravel particles from entering the interior of the valve barrel through the installation of the filtering device, thereby effectively avoiding the blocking condition of the valve plate, and in addition, through the installation of the brush, the silt on the inner wall of the valve barrel can be cleaned in the plugging process of the valve plate, the sealing part is effectively cleaned, and a stable sealing surface is formed by matching with the edge expansion function of the valve plate, so that the device has better plugging effect and higher practicability.

Drawings

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

FIG. 2 is a schematic view of a valve plate according to the present invention;

FIG. 3 is a second schematic view of the valve plate according to the present invention;

FIG. 4 is a schematic cross-sectional view of the present invention;

FIG. 5 is a schematic view of the structure of the filtering apparatus of the present invention.

In the figure: 1. a valve barrel; 2. a valve plate; 21. a plate body; 22. a rotating shaft; 23. a drive shaft; 24. a gear; 25. a rack; 26. a rubber layer; 27. a capacity expansion slot; 28. expanding a plate; 29. a drive slot; 210. a chute; 211. a slider; 3. connecting holes; 4. a stopper; 5. a filtration device; 51, a filter screen; 52. a ring plate; 53. a positioning column; 54. positioning holes; 55. caulking grooves; 6. and a brush.

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. 1-5, the illustrated silt-proof butterfly valve for preventing the valve seat from being rusted and stuck comprises avalve cylinder 1, connectingholes 3 andstoppers 4, wherein the connectingholes 3 are uniformly formed in the edge of thevalve cylinder 1, thestoppers 4 are symmetrically fixed on the inner wall of thevalve cylinder 1, anexpandable valve plate 2 is rotatably mounted inside thevalve cylinder 1 in a matched manner, and a filtering device 5 matched with thevalve plate 2 for filtering is mounted at one end of thevalve cylinder 1.

Through connectinghole 3 withvalve barrel 1 and pipe connection, realize through the rotation ofvalve plate 2 the shutoff ofvalve barrel 1 with open, and the accurate location shutoff of setting up theguarantee valve plate 2 ofdog 4, the setting of filter equipment 5 avoids leading to the fact in thevalve barrel 1 card ofvalve plate 2 dead simultaneously.

Referring to fig. 2-3, thevalve plate 2 includes aplate body 21, arotating shaft 22, atransmission shaft 23, agear 24, arack 25, arubber layer 26, anexpansion groove 27, anexpansion plate 28 and adriving groove 29, the rotatingshaft 22 is fixed on the top of theplate body 21, the rotatingshaft 22 is rotatably connected with the cylinder body, theexpansion groove 27 is symmetrically formed in two sides of the inside of theplate body 21, therubber layer 26 wraps the edge of theexpansion groove 27, theexpansion plate 28 is arranged inside theexpansion groove 27, thedriving groove 29 communicated with theexpansion groove 27 is formed in the inside of theplate body 21, thetransmission shaft 23 is rotatably installed in therotating shaft 22 and the inside of theplate body 21, thegear 24 is fixed in thedriving groove 29 at the bottom end of thetransmission shaft 23, therack 25 is symmetrically engaged with two sides of thegear 24, and therack 25 is.

Theplate body 21 is rotated by rotating the rotatingshaft 22, and after theplate body 21 is plugged, thetransmission shaft 23 is screwed to rotate, so that thegear 24 drives therack 25 to transversely move in thedriving groove 29, and theexpansion plate 28 is pushed to extrude therubber layer 26 outwards, so that therubber layer 26 is tightly attached to the inner wall of thevalve cylinder 1, and stable sealing is realized.

Referring to fig. 3, asliding groove 210 is formed on an inner wall of thedriving groove 29, asliding block 211 is fixed on an edge of therack 25, and thesliding block 211 is slidably connected with thesliding groove 210, so that therack 25 can stably and transversely move through the sliding guide of thesliding block 211 and thesliding groove 210.

In addition, therubber layer 26 is made of high-elasticity composite rubber, and expansion deformation of therubber layer 26 is realized.

In addition, the edge symmetry ofvalve plate 2 is fixed withbrush 6, andbrush 6 and the contact of 1 inner wall of valve section of thick bamboo, at the rotatory in-process ofvalve plate 2, brushes 1 inner wall of valve section of thick bamboo throughbrush 6, reduces being stained with of impurity and attaches, reduces the jam probability tovalve plate 2.

Referring to fig. 4-5, the filtering device 5 includes afilter screen 51, aring plate 52 and acaulking groove 55, thecaulking groove 55 is formed at one end of thevalve cylinder 1, thefilter screen 51 is disposed in thecaulking groove 55, thering plate 52 is fixed at the edge of thefilter screen 51, and thering plate 52 is structurally matched with thecaulking groove 55.

Through the embedding installation offilter screen 51, avoid leading inside bigger granule entering valve section ofthick bamboo 1 in the liquid, effectively reduced the card dead situation ofvalve plate 2

Referring to fig. 5, the surface of theembedding slot 55 is symmetrically provided withpositioning holes 54, the surface of thering plate 52 is symmetrically fixed withpositioning posts 53, and thepositioning posts 53 are inserted into thepositioning holes 54.

Thefilter screen 51 is stably arranged on the end surface of thevalve cylinder 1 by the matching and inserting of thepositioning column 53 and thepositioning hole 54, so that a stable filter layer is formed.

Wherein, thefilter screen 51 is spherical, avoids influencing the removal ofvalve plate 2.

Thevalve cylinder 1 is made of cast iron materials, so that thevalve cylinder 1 has stable corrosion resistance.

The working principle is as follows: thevalve barrel 1 is connected with a pipeline through the connectinghole 3, thevalve barrel 1 is plugged and opened through rotation of thevalve plate 2, thestop block 4 is arranged to ensure accurate positioning plugging of thevalve plate 2, and meanwhile, the filtering device 5 is arranged to prevent larger particles from entering thevalve barrel 1 to cause blocking of thevalve plate 2;

theplate body 21 is rotated by rotating the rotatingshaft 22, and after theplate body 21 is plugged, thetransmission shaft 23 is screwed to rotate, so that thegear 24 drives therack 25 to transversely move in thedriving groove 29, and theexpansion plate 28 is pushed to extrude therubber layer 26 outwards, so that therubber layer 26 is tightly attached to the inner wall of thevalve cylinder 1, and stable sealing is realized.

The circuits and controls involved in the present invention are prior art and will not be described in detail herein.

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.

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 invention, the scope of which is defined in the appended claims and their equivalents.

Claims (9)

1. The utility model provides a prevent that disk seat corrosion and card are dead prevents silt type butterfly valve, includes valve barrel (1), connecting hole (3) and dog (4), connecting hole (3) have evenly been seted up at valve barrel (1) edge, valve barrel (1) inner wall symmetry is fixed with dog (4), its characterized in that: valve section of thick bamboo (1) inside cooperation is rotated and is installed expandable valve plate (2), valve section of thick bamboo (1) one end is installed and is cooperated valve plate (2) and carry out filterable filter equipment (5).

2. The mud-proof butterfly valve of claim 1, wherein said butterfly valve further comprises: the valve plate (2) comprises a plate body (21), a rotating shaft (22), a transmission shaft (23), a gear (24), a rack (25), a rubber layer (26), an expansion groove (27), an expansion plate (28) and a driving groove (29), wherein the rotating shaft (22) is fixed at the top of the plate body (21), the rotating shaft (22) is rotatably connected with the cylinder body, the expansion groove (27) is symmetrically formed in the inner side of the plate body (21), the rubber layer (26) is wrapped on the edge of the expansion groove (27), the expansion plate (28) is arranged in the expansion groove (27), the driving groove (29) communicated with the expansion groove (27) is formed in the plate body (21), the transmission shaft (23) is rotatably installed in the rotating shaft (22) and the plate body (21), the gear (24) is fixedly arranged in the driving groove (29) at the bottom end of the transmission shaft (23), and the rack (25) is symmetrically meshed with the gear (24) at the, and the rack (25) is fixedly connected with the expanding plate (28).

3. The mud-proof butterfly valve of claim 2, wherein said valve seat is prevented from rusting and seizing: the inner wall of the driving groove (29) is provided with a sliding groove (210), the edge of the rack (25) is fixed with a sliding block (211), and the sliding block (211) is in sliding connection with the sliding groove (210).

4. The mud-proof butterfly valve of claim 2, wherein said valve seat is prevented from rusting and seizing: the rubber layer (26) is made of high-elasticity composite rubber.

5. The mud-proof butterfly valve of claim 1, wherein said butterfly valve further comprises: the edge of the valve plate (2) is symmetrically fixed with a brush (6), and the brush (6) is contacted with the inner wall of the valve barrel (1).

6. The mud-proof butterfly valve of claim 2, wherein said valve seat is prevented from rusting and seizing: filter equipment (5) include filter screen (51), circle board (52) and caulking groove (55), caulking groove (55) have been seted up to valve barrel (1) one end, be provided with filter screen (51) in caulking groove (55), filter screen (51) edge fastening has circle board (52), and circle board (52) and caulking groove (55) structure cooperation.

7. The mud-proof butterfly valve of claim 6, wherein said valve seat is prevented from rusting and seizing by: positioning holes (54) are symmetrically formed in the surface of the embedding groove (55), positioning columns (53) are symmetrically fixed on the surface of the ring plate (52), and the positioning columns (53) are matched and spliced with the positioning holes (54).

8. The mud-proof butterfly valve of claim 6, wherein said valve seat is prevented from rusting and seizing by: the filter screen (51) is spherical.

9. The mud-proof butterfly valve of claim 1, wherein said butterfly valve further comprises: the valve cylinder (1) is made of cast iron materials.

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