CN215215015U

CN215215015U - Butterfly valve with dustproof function

Info

Publication number: CN215215015U
Application number: CN202121165957.3U
Authority: CN
Inventors: 项云弟
Original assignee: Wenzhou Tedie Valve Factory
Current assignee: Wenzhou Tedie Valve Factory
Priority date: 2021-05-27
Filing date: 2021-05-27
Publication date: 2021-12-17
Anticipated expiration: 2031-05-27

Abstract

The utility model provides a butterfly valve with dustproof function, includes the valve body, set up the valve rod on the valve body, form the valve pocket in the valve body, set up the valve rod passageway that supplies the valve rod to stretch into on the valve body, the valve rod passageway is passed through to the one end of valve rod and is stretched into the valve pocket, set up the annular on the outer wall of valve rod passageway, set up the dust keeper in the annular, set up the connector on the cell wall of annular, connector intercommunication annular and valve rod passageway, the one end of dust keeper is passed through the connector and is stretched into valve rod passageway and valve rod seal and meet, the utility model discloses a with the dust keeper and extension fill in the valve rod passageway by the connector in, stay spacing outside, play spacing fixed action, prevent to drop inside the valve pocket.

Description

Butterfly valve with dustproof function

Technical Field

The utility model relates to a butterfly valve technical field, concretely relates to butterfly valve with dustproof function.

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 butterfly valve with a closing member (a valve clack or a butterfly plate) as a disk and rotating around a valve shaft to achieve the opening and closing. As is well known, the butterfly valve is mostly in many dirt, high temperature operational environment to the medium pressure of the inside circulation of butterfly valve is great and have corrosivity more, and the butterfly valve inner structure is corroded very easily, and dust or impurity also get into the gap of valve rod and valve body very easily, appear the valve rod moment of torsion increase easily, the demonstration of valve rod jam, thereby reduced the life of butterfly valve.

Disclosure of Invention

In view of this, the utility model provides a butterfly valve with dustproof function.

In order to achieve the above object, the utility model provides a following technical scheme:

the utility model provides a butterfly valve with dustproof function, includes the valve body, set up the valve rod on the valve body, form the valve pocket in the valve body, set up the valve rod passageway that supplies the valve rod to stretch into on the valve body, the valve rod passageway is passed through to the one end of valve rod and is stretched into the valve pocket, set up the annular on the outer wall of valve rod passageway, set up the dust keeper in the annular, set up the connector on the cell wall of annular, connector intercommunication annular and valve rod passageway, the one end of dust keeper is passed through the connector and is stretched into valve rod passageway and valve rod seal and meet.

Preferably, the dust keeper is the elastic rubber material, the dust keeper has spacing portion, dust guard and extension, spacing portion is the annular setting, the dust guard sets up in one side of spacing portion, just the dust guard stretches into the valve rod passageway through the connector, the extension is the both sides that the dust guard stretches into the valve rod passageway part and extends the formation.

Preferably, the connectors are provided with a plurality of connectors, the connectors are arranged on the groove walls of the ring grooves at equal intervals, and the dustproof parts of the dustproof pieces are arranged on the limiting parts corresponding to the connectors.

Preferably, the extension parts on the plurality of dust-proof parts are connected to form an annular structure, and the dust-proof parts and the extension parts are inclined planes on the sides close to the valve rod.

Preferably, still set up a plurality of spacing separation blades in the annular, the equidistant setting of spacing separation blade is in the annular, the height of spacing separation blade is half of the vertical distance between the cell wall of annular both sides.

Preferably, still set up seal assembly between valve rod and the valve rod passageway, seal assembly includes sealing filler and gland, the sealing ring groove is seted up to the annular top, the sealing filler sets up in the sealing ring groove, gland sets up on sealed condiment, just gland compresses tightly fixedly to the sealing filler.

The beneficial effects of the utility model reside in that: the utility model discloses a with the dust guard of dust keeper and extension fill in the valve rod passageway by the connector in, stay spacing portion outside, play spacing fixed action, prevent to drop inside the valve pocket.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

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

FIG. 2 is a cross-sectional view taken at B-B of FIG. 1;

fig. 3 is an enlarged view of a portion a of fig. 1.

Reference numerals:

1. the valve comprises a valve body, 2, a valve rod, 3, a valve cavity, 4, a valve rod channel, 5, an annular groove, 6, a connecting port, 7, a dustproof piece, 8, a limiting part, 9, a dustproof part, 10, an extending part, 11, a limiting baffle, 12, a sealing annular groove, 13, sealing filler, 14 and a filler gland.

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.

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

The utility model provides a following technical scheme:

as shown in the accompanying drawings 1-3, the utility model discloses a butterfly valve with dustproof function, including valve body 1, set up valve rod 2 on the valve body 1, form valve pocket 3 in the valve body 1, set up the valve rod passageway 4 that supplies valve rod 2 to stretch into on the valve body 1, valve rod passageway 4 is passed through to valve rod 2's one end and is stretched into valve pocket 3, set up annular 5 on valve rod passageway 4's the outer wall, set up dust proof 7 in the annular 5, set up connector 6 on annular 5's the cell wall, connector 6 intercommunication annular 5 and valve rod passageway 4, the one end of dust proof 7 is passed through connector 6 and is stretched into valve rod passageway 4 and valve rod 2 and seal and meet. Specifically, through setting up dust keeper 7, the dust keeper 7 of elasticity rubber material can be extruded by valve rod 2 to further increase and the area of contact between the valve rod 2, it enters into inside the valve chamber 3 to reduce the dust to have valve rod passageway 4.

Further, dust keeper 7 is the elastic rubber material, dust keeper 7 has spacing portion 8, dust keeper 9 and extension 10, spacing portion 8 is the annular setting, dust keeper 9 sets up in one side of spacing portion 8, just dust keeper 9 stretches into valve rod passageway 4 through connector 6, extension 10 is that dust keeper 9 stretches into the both sides of valve rod passageway 4 part and extends the formation. Specifically, the dust-proof part 9 and the extension part 10 of the dust-proof part 7 are plugged into the valve rod channel 4 through the connecting port 6, and the limiting part 8 is left outside to play a role in limiting and fixing and prevent the dust-proof part from falling into the valve cavity 3.

Furthermore, the connecting ports 6 are provided with a plurality of connecting ports 6, the connecting ports 6 are arranged on the groove wall of the ring groove 5 at equal intervals, and the dustproof parts 9 of the dustproof pieces 7 are arranged on the limiting parts 8 corresponding to the connecting ports 6. In particular, the number of connection ports 6 is inversely proportional to the size of the extensions 10, the smaller the number of connection ports 6, the longer the extension 10 size is required to better conform to the valve stem channel 4.

Specifically, the extension parts 10 of the dust-proof parts 9 are connected to form an annular structure, and the sides of the dust-proof parts 9 and the extension parts 10 close to the valve rod 2 are inclined planes. In the present embodiment, the number of the connection ports 6 and the dust-proof portions 9 is set to 4, and the extension portions 10 of each dust-proof portion 9 extend to both sides to be connected to the adjacent extension portions 10 to form an annular structure.

Further, still set up a plurality of spacing separation blades 11 in the annular 5, the setting of the impartial interval of spacing separation blade 11 is in annular 5, spacing separation blade 11 highly is the half of vertical distance between the 5 both sides cell walls of annular. The arrangement of the limiting blocking piece 11 can prevent the dust-proof piece 7 from loosening on the annular groove 5, and the dust-proof piece 7 can be positioned successively more easily in installation, and the dust-proof piece 7 can be fixed on one side of the limiting blocking piece 11 close to the connecting port 6 and also can be arranged on one side of the limiting blocking piece 11 far away from the connecting port 6.

Further, still set up seal assembly between valve rod 2 and the valve rod passageway 4, seal assembly includes packing 13 and gland 14, ring groove 12 is seted up to 5 tops in the annular, packing 13 sets up in ring groove 12, gland 14 sets up on sealed condiment, just gland 14 compresses tightly fixedly to packing 13. Can strengthen the holistic sealed effect of butterfly valve through setting up seal assembly, and can seal assembly set up in the top of dustproof 7, can prevent that seal assembly is ageing to drop the magazine and enter into valve chamber 3.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. The utility model provides a butterfly valve with dustproof function, includes the valve body, set up the valve rod on the valve body, form the valve pocket in the valve body, set up the valve rod passageway that supplies the valve rod to stretch into on the valve body, the one end of valve rod is passed through the valve rod passageway and is stretched into valve pocket, its characterized in that: offer the annular on the outer wall of valve rod passageway, set up the dustproof in the annular, set up the connector on the cell wall of annular, connector intercommunication annular and valve rod passageway, the one end of dustproof stretches into valve rod passageway and valve rod seal through the connector and meets.

2. The butterfly valve with a dust-proof function according to claim 1, wherein: the dustproof piece is the elastic rubber material, the dustproof piece has spacing portion, dust guard and extension, spacing portion is the annular setting, the dust guard sets up in one side of spacing portion, just the dust guard stretches into the valve rod passageway through the connector, the extension extends for the both sides that the dust guard stretches into valve rod passageway part and forms.

3. The butterfly valve with a dust-proof function according to claim 2, wherein: the connector sets up the several, the equidistant setting of connector is on the cell wall of annular, the quantity that the dustproof portion of dustproof corresponds the connector sets up on spacing portion.

4. The butterfly valve with a dust-proof function according to claim 3, wherein: the extension parts on the plurality of dust-proof parts are connected to form an annular structure, and the sides of the dust-proof parts and the extension parts, which are close to the valve rod, are inclined planes.

5. The butterfly valve with a dust-proof function according to claim 1, wherein: still set up a plurality of spacing separation blades in the annular, the setting of the impartial interval of spacing separation blade is in the annular, the height of spacing separation blade is the half of vertical distance between the cell wall of annular both sides.

6. The butterfly valve with a dust-proof function according to claim 1, wherein: still set up seal assembly between valve rod and the valve rod passageway, seal assembly includes packing and gland, the sealing ring groove is seted up to the annular top, the packing sets up in the sealing ring groove, gland sets up on sealed condiment, just gland compresses tightly fixedly to the packing.