CN212080192U

CN212080192U - Multi-gear adjustable vacuum butterfly valve

Info

Publication number: CN212080192U
Application number: CN202020612439.0U
Authority: CN
Inventors: 江署春; 郑建华; 何善良
Original assignee: Ningbo Instrument Valve Factory
Current assignee: Ningbo Instrument Valve Factory
Priority date: 2020-04-22
Filing date: 2020-04-22
Publication date: 2020-12-04
Anticipated expiration: 2030-04-22

Abstract

The utility model provides a vacuum butterfly valve with adjustable many grades, including valve body, valve block, valve rod, connecting piece and control the piece, valve rod upper portion is equipped with square shank portion, and the connecting piece is equipped with the square hole, and the dress is worn in this square hole to square shank portion, and the connecting piece includes disk portion and cylindric connecting portion, and a fixed mounting is being held on connecting portion, and several draw-in groove has evenly been seted up on its fourth periphery to disk portion, and the valve body is equipped with the locking fixed establishment who fixes disk portion turned position. A vacuum butterfly valve structure with adjustable many grades in, set up the several draw-in groove on the disc part fourth periphery, the valve body has set up the locking fixed establishment who fixes connecting piece rotating position, realizes opening the position to the butterfly valve piece difference and locks, finally realizes the setting of many gears of butterfly valve, realizes butterfly valve flow control.

Description

Multi-gear adjustable vacuum butterfly valve

Technical Field

The utility model belongs to butterfly valve production field especially relates to a vacuum butterfly valve with adjustable many grades.

Background

The butterfly 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 pipe mainly plays a role in cutting off and throttling. The butterfly valve opening and closing piece is a disc-shaped butterfly valve sheet and rotates around the axis of the butterfly valve sheet in the valve body, so that the opening and closing purposes are achieved. In real life and industrial manufacturing, it is necessary to regulate and control the fluid flow, so how to design a butterfly valve with multiple gears and easy operation becomes a research and development subject of the prior art.

SUMMERY OF THE UTILITY MODEL

In view of this, the present invention is directed to a multi-gear adjustable vacuum butterfly valve to achieve multi-gear operation of the butterfly valve.

In order to achieve the above purpose, the technical scheme of the utility model is realized like this:

a multi-gear adjustable vacuum butterfly valve comprises a valve body, a valve plate and a valve rod, wherein the top end of the valve body is provided with a platform, the upper part of the valve rod is provided with a square handle part, the vacuum butterfly valve also comprises a connecting piece and a holding piece, a square hole corresponding to the square handle part is vertically arranged at the center of the connecting piece, the square handle part is arranged in the square hole in a penetrating way, the connecting piece comprises a disk part and a cylindrical connecting part which are arranged from bottom to top in sequence, the holding piece is fixedly arranged on the connecting part, the connecting piece is driven to rotate by the holding piece, the bottom surface of the disk part is attached to the platform, the disk part is evenly provided with a plurality of clamping grooves on one fourth of the circumference surface, the platform is provided with a locking and fixing mechanism for fixing the rotation position of the disk part, when the connecting piece rotates clockwise to a valve plate closing state, the locking and fixing mechanism and the outermost clamping groove located on the upstream are correspondingly arranged.

Further, locking fixed establishment includes fixing base and fore-set, the fixing base is installed on the platform, the fore-set radially sets up along disc portion, and this fore-set activity is worn to adorn on the fixing base, and the fore-set outer end is equipped with the limiting plate, the fore-set inner tightly pushes up in the draw-in groove, and this fore-set is close to the fixed cover of inner position department and is equipped with the roof, the position department cover of fore-set is equipped with the pressure spring between roof and fixing base, and the pressure spring sticiss the roof.

Furthermore, the clamping groove is of a semicircular groove structure, and the inner end of the ejection column is of a spherical surface structure.

Furthermore, the joint of every two adjacent clamping grooves is in smooth transition.

Further, the holding piece is of a hand wheel structure.

Furthermore, the outer circumferential surface of the disc part is respectively provided with a limiting bulge at the outer side positions of the two outermost clamping grooves.

Compared with the prior art, a vacuum butterfly valve with adjustable many grades have following advantage:

a vacuum butterfly valve structure with adjustable many grades in, drive valve rod pivoted and controlled a fixed connection, set up the several draw-in groove on the disc part fourth periphery of connecting piece, the valve body has set up the locking fixed establishment fixed to connecting piece rotating position, realize opening the position to the butterfly valve piece difference and lock, finally realize the setting of many gears of butterfly valve, because the several draw-in groove evenly sets up, consequently know the butterfly valve piece degree of opening through observing the draw-in groove position, realize butterfly valve flow control.

Drawings

The accompanying drawings, which form a part hereof, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without undue limitation. In the drawings:

FIG. 1 is a schematic structural view of a multi-stage adjustable vacuum butterfly valve according to the present embodiment;

fig. 2 is a top view of a multi-stage adjustable vacuum butterfly valve according to this embodiment.

Description of reference numerals:

1-a valve body; 11-a platform; 2-a valve stem; 21-square handle; 3-a connector; 31-a disc portion; 311-card slot; 312-a stop boss; 32-a connecting portion; 4-a handle; 5-locking the fixing mechanism; 51-a fixed seat; 52-limiting plate; 53-top post; 54-pressure spring; 55-top plate.

Detailed Description

It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "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 used merely for convenience of description and for 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. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

As shown in fig. 1 and 2, the multi-gear adjustable vacuum butterfly valve comprises a valve body 1, a valve plate, a valve rod 2, a connecting piece 3 and a holding piece 4, wherein the valve plate is fixed on the valve rod 2, and the valve plate is driven to rotate by rotating the valve rod 2, so that the opening or closing action of the valve plate is realized. The upper part of the valve rod 2 is provided with a square handle part 21, the center of the connecting piece 3 is vertically provided with a square hole corresponding to the square handle part 21, the square handle part 21 is arranged in the square hole in a penetrating way, and the holding piece 4 is fixedly arranged on the connecting piece 3. In this embodiment, the handle is preferably a handwheel structure, and when the handwheel is rotated, the connecting piece 3 rotates to drive the valve rod 2 to rotate, and finally the valve plate is driven to rotate. In this embodiment, the connecting member 3 includes a disk portion 31 and a cylindrical connecting portion 32 sequentially arranged from bottom to top, a square hole penetrates through the disk portion 31 and the connecting portion 32, the valve body 1 is provided with a platform 11 at a top end position, and a bottom surface of the disk portion 31 is attached to the platform 11. Because the valve plate rotates 90 degrees to complete the conversion between the open state and the closed state, the flow regulating function can be realized by controlling the rotation angle of the butterfly valve plate, because the valve plate and the connecting piece 3 rotate synchronously, the rotation position of the valve plate can be limited by controlling the rotation position of the connecting piece 3, concretely, a plurality of clamping grooves 311 are uniformly arranged on one fourth of the circumference surface of the disk part 31, the embodiment is explained by taking 4 clamping grooves 311, every two adjacent clamping grooves 311 correspond to a central angle of 30 degrees, so that the three gear adjustment of 30 degrees, 60 degrees and 90 degrees of the valve plate (at the time, the valve plate is in a full open state) can be realized, the platform 11 is provided with a locking and fixing mechanism 5 for fixing the rotation position of the disk part 31, when the connecting piece 3 rotates clockwise to the closed state of the valve plate, the locking and fixing mechanism 5 corresponds to the clamping groove 311 at the outermost side at the upstream, at this time, the locking and fixing mechanism 5 locks and fixes the disc portion 31 at the valve sheet closing position. During specific implementation, the connecting piece 3 rotates anticlockwise, the valve plate is opened, and when the connecting piece 3 rotates to the next adjacent clamping groove, the next adjacent clamping groove is opposite to the locking fixing mechanism 5 and is locked by the locking fixing mechanism 5, the valve plate is opened by 30 degrees, and the opening degree of the valve plate is 30 degrees. By analogy, the flow adjustment of the valve plate with the opening degree of 60 degrees and the flow adjustment of the valve plate with the opening degree of 90 degrees (full opening of the valve plate) are gradually realized.

In this embodiment, locking fixed establishment includes fixing base 51 and fore-set 53, fixing base 51 is installed on platform 11, and the through-hole that supplies the activity of fore-set 53 to wear out is seted up to fixing base 51 horizontal direction, and this through-hole radially sets up along disc portion 31, and the dress is worn on fixing base 51 in this fore-set 53 activity, fore-set 53 and through-hole clearance fit, and fore-set 53 outer end is equipped with limiting plate 52, the inner tight top of fore-set 53 is in draw-in groove 311, and this fore-set 53 is being close to fixed the cover in inner position department and is being equipped with roof 55, fore-set 53 is equipped with pressure spring 54 in position department cover between roof 55 and fixing base 51, and pressure. When the connecting member 3 rotates, in order to prevent the clamping phenomenon from occurring due to the fact that the top post 55 tightly pushes the clamping groove 311, in this embodiment, the bottom of the clamping groove 311 is an arc surface structure recessed toward the inside of the disc portion 31, that is, the clamping groove 311 is a semicircular groove structure, the inner end of the top post 53 is a spherical structure, and the joint of every two adjacent clamping grooves 311 is in smooth transition.

In this embodiment, the outer circumferential surface of the disc portion 31 is protruded with a limiting protrusion 312 at the outer side of the two outermost slots 311. The limiting protrusion 312 prevents the phenomenon that the rotation angle of the connecting piece 3 is too large.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a vacuum butterfly valve with adjustable many grades, includes valve body (1), valve block and valve rod (2), and valve body (1) top is equipped with platform (11), valve rod (2) upper portion is equipped with square stalk portion (21), its characterized in that: also comprises a connecting piece (3) and a holding piece (4), a square hole corresponding to the square handle part (21) is arranged in the vertical direction at the center of the connecting piece (3), the square handle part (21) is arranged in the square hole in a penetrating way, the connecting piece (3) comprises a disc part (31) and a cylindrical connecting part (32) which are sequentially arranged from bottom to top, the holding piece (4) is fixedly arranged on the connecting part (32), the connecting piece (3) is driven to rotate by the holding piece (4), the bottom surface of the disc part (31) is attached to the platform (11), the disk part (31) is evenly provided with a plurality of clamping grooves (311) on one fourth of the circumference surface, a locking and fixing mechanism (5) for fixing the rotating position of the disc part is arranged on the platform (11), when the connecting piece (3) rotates clockwise to a valve plate closing state, the locking and fixing mechanism and the outermost clamping groove (311) positioned on the upstream are correspondingly arranged.

2. The adjustable vacuum butterfly valve of claim 1, wherein: locking fixed establishment (5) include fixing base (51) and fore-set (53), install on platform (11) fixing base (51), fore-set (53) are along disc portion (31) radial setting, and the dress is worn in this fore-set (53) activity on fixing base (51), and fore-set (53) outer end is equipped with limiting plate (52), fore-set (53) inner tightly pushes up in draw-in groove (311), and this fore-set (53) are fixed cover in the position department of being close to inner and are equipped with roof (55), fore-set (53) position department cover is equipped with pressure spring (54) between roof (55) and fixing base (51), and pressure spring (54) sticiss roof (55).

3. The adjustable vacuum butterfly valve of claim 2, wherein: the clamping groove (311) is of a semicircular groove structure, and the inner end of the top column (53) is of a spherical structure.

4. The adjustable vacuum butterfly valve of claim 3, wherein: the joint of every two adjacent clamping grooves (311) is in smooth transition.

5. The adjustable vacuum butterfly valve of claim 1, wherein: the handle (4) is of a hand wheel structure.

6. The adjustable vacuum butterfly valve of claim 1, wherein: the outer circumferential surface of the disc part (31) is provided with limiting bulges (312) at the outer side positions of the two outermost clamping grooves (311) in a protruding mode.