CN216555413U - Visual butterfly valve of valve plate aperture - Google Patents

Abstract

The application discloses a butterfly valve with a visual valve plate opening degree, which comprises a valve body, an inner sealing ring, a valve plate, a valve neck, a gland, a marking piece and a valve rod, wherein the inner sealing ring is arranged in the valve body, the valve plate is arranged in the valve body, the valve neck is arranged at the top of the valve body, the marking piece is fixedly arranged at the top of the valve neck through a fastening piece, the top surface of the marking piece is provided with scales and is fixedly arranged at the top of the gland through a bracket, the bottom end of the valve rod penetrates through the gland and the valve neck and then extends into the valve body to be fixedly connected with the valve plate, the top end of the valve rod penetrates through the center of the marking piece and then continues to extend, the sealing piece is arranged between the inner wall of the valve neck and the outer wall of the valve rod, the indicating piece is fixedly arranged at one side of the outer wall of the top end of the valve rod, when the valve rod rotates, the valve plate and the indicating piece correspond to the scales on the marking piece, a worker can read specific opening degree of the valve plate, the specific opening degree can be convenient to adjust the opening degree, accurate current-limiting control, improved control accuracy and be convenient for the workman to adjust.

Description

Visual butterfly valve of valve plate aperture

Technical Field

The utility model relates to a butterfly valve with a visual valve plate opening degree.

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 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 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 handle of the existing butterfly valve is unreasonable in design and laborious to hold. There is a need for a butterfly valve with a handle more suitable for human operation.

Chinese patent application No. CN99208927.1, the name is prevent silt type butterfly valve, this application discloses prevent silt type butterfly valve, the valve plate of this valve is located one side of valve shaft, be fixed with sealing washer and pressure disk on the valve plate, adjusting screw is equipped with on the valve plate, the cover is equipped with the spacer sleeve between valve shaft and valve body, it has the drain to open on the valve body, and be equipped with the oil cup, this butterfly valve can prevent to be carried in liquid and the infiltration of silt go into the bearing, prevent bearing corrosion and card die, the life-span is prolonged, the cost is reduced, be convenient for maintain, be suitable for and use on the pipeline of carrying big silt content medium, nevertheless this butterfly valve still has following weak point:

1. although the butterfly valve has a flow-limiting function, since the opening of the valve plate cannot be visually observed, the flow-limiting control cannot be accurately performed, and therefore improvement is needed;

2. the working environment of the butterfly valve is severe, for example, the butterfly valve is dusty, high in temperature, high in pressure of circulating medium, corrosive in medium and the like, and the size of the butterfly valve is gradually increased, so that the butterfly valve is very difficult to open;

3. the sealing structure is complex, the assembly is complex, and the manufacturing cost is high.

Disclosure of Invention

The present invention is directed to solving one of the technical problems of the prior art.

The application provides a visual butterfly valve of valve plate aperture, including valve body, valve neck, gland and valve rod, still include:

the top surface of the marking piece is provided with scales and is arranged on the press cover;

an indicator mounted on the valve stem;

the indicating piece rotates along with the valve rod and is used for being matched with the scales to indicate the rotating angle of the valve rod.

Adopt the visual butterfly valve of foretell valve plate aperture, when the valve rod rotated, the valve plate rotated with the indicator simultaneously, corresponded with the scale that marks on the piece through the indicator, made the workman can read concrete numerical value to the concrete aperture of valve plate, was convenient for adjust the aperture, through such mode, the accurate current-limiting control that carries on, improved the control accuracy workman of being convenient for and adjusted.

The seal includes:

the sealing groove is arranged on the inner wall of the valve neck;

the first sealing ring is sleeved at the bottom of the sealing groove;

the sealing ring II is sleeved at the top of the sealing groove, and the upper end and the lower end of the sealing ring II are respectively abutted against the top end of the sealing ring I and the bottom surface of the gland;

the ring groove is arranged at the upper part of the outer wall of the sealing ring;

and the end surfaces of the first sealing ring and the second sealing ring which are contacted are inclined surfaces.

Further comprising:

the convex edge is arranged on the bottom surface of the gland, and the outer wall of the convex edge is abutted against the inner wall of the sealing ring II;

and when the bottom surface of the gland is abutted against the top surfaces of the two sealing rings, a gap exists between the bottom surface of the gland and the top surface of the gland.

Further comprising:

one end of the rotating shaft is rotatably arranged on the bracket, and the other end of the rotating shaft extends out of the bracket;

the hand wheel is fixedly arranged at one end of the rotating shaft extending out of the rack;

the worm is fixedly arranged in the middle of the rotating shaft;

and the worm wheel is fixedly arranged at the top end of the valve rod and is in transmission connection with the worm.

Further comprising:

the scale is made of a reflective material.

The advantageous effects of the present invention will be explained in detail in the embodiments, thereby making the advantageous effects more apparent.

Drawings

FIG. 1 is a schematic structural diagram of a butterfly valve according to an embodiment of the present application, the valve plate opening degree of which is visualized.

Reference numerals

1-valve body, 2-indicator, 4-valve neck, 5-gland, 6-indicator, 7-scale, 8-valve rod, 9-sealing groove, 10-sealing ring I, 11-sealing ring II, 12-ring groove, 13-convex edge, 14-rotating shaft, 15-hand wheel, 16-worm and 17-worm wheel.

Detailed Description

The technical solutions in the embodiments of the present application will be described clearly below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some, but not all, embodiments of the present application. All other embodiments that can be derived by one of ordinary skill in the art from the embodiments given herein are intended to be within the scope of the present disclosure.

The terms first, second and the like in the description and in the claims of the present application are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It will be appreciated that the data so used may be interchanged under appropriate circumstances such that embodiments of the application may be practiced in sequences other than those illustrated or described herein, and that the terms "first," "second," and the like are generally used herein in a generic sense and do not limit the number of terms, e.g., the first term can be one or more than one. In addition, "and/or" in the specification and claims means at least one of connected objects, a character "/" generally means that a preceding and succeeding related objects are in an "or" relationship.

The server provided by the embodiment of the present application is described in detail below with reference to the accompanying drawings through specific embodiments and application scenarios thereof.

Example 1:

as shown in fig. 1, the embodiment of the application provides a butterfly valve with a visual valve plate opening degree, which comprises a valve body 1, a valve neck 4, a gland 5, a valve rod 8, and a marking member 6, wherein the top surface of the marking member is provided with scales 7 and is installed on the gland 5; and the indicating piece 2 is arranged on the valve rod 8, and the indicating piece 2 rotates along with the valve rod 8 and is used for cooperating with the scale 7 to indicate the rotation angle of the valve rod 8.

In the embodiment of the application, adopt the visual butterfly valve of 3 apertures of foretell valve plate, when valve rod 8 rotated, valve plate 3 rotated simultaneously with indicator 2, corresponded with scale 7 on the marker 6 through indicator 2, made the workman can read specific numerical value to the specific aperture of valve plate 3, was convenient for adjust the aperture, through such mode, accurate current-limiting control that carries on, improved the control accuracy workman's of being convenient for and adjusted.

Example 2:

in this embodiment, in addition to including the structural features of the previous embodiment, the seal includes:

the sealing groove 9 is arranged on the inner wall of the valve neck 4;

the first sealing ring 10 is sleeved at the bottom of the sealing groove 9;

the second sealing ring 11 is sleeved at the top of the sealing groove 9, and the upper end and the lower end of the second sealing ring are respectively abutted against the top end of the first sealing ring 10 and the bottom surface of the gland 5;

the annular groove 12 is arranged at the upper part of the outer wall of the first sealing ring 10;

the end faces of the first sealing ring 10 and the second sealing ring 11 in contact are inclined faces.

In this embodiment, owing to adopted foretell structure, exert pressure through gland 5 to sealing washer two 11, make the inclined plane of its bottom closely cooperate with the inclined plane on sealing washer two 11 tops, make the effect of sealing washer two 11 bottoms and sealing washer two 11 bottoms along horizontal expansion under each inclined plane, it is inseparable to improve to combine between two 11 outer walls of sealing washer and the valve neck 4 inner wall and the sealing washer one 10 inner wall and the 8 outer walls of valve rod, simple structure, the leakproofness is strong, is convenient for assemble and practices thrift manufacturing cost.

Example 3:

in this embodiment, in addition to the structural features of the foregoing embodiment, the method further includes:

the convex edge 13 is arranged on the bottom surface of the gland 5, and the outer wall of the convex edge is abutted against the inner wall of the second sealing ring 11;

and when the bottom surface of the gland 5 is abutted against the top surface of the second sealing ring 11, a gap is formed between the bottom surface of the gland and the top surface of the gland 5.

In this embodiment, because the structure is adopted, after the inner wall of the first sealing ring 10 or the outer wall of the second sealing ring 11 is abraded, the outer wall of the second sealing ring 11 and the inner wall of the valve neck 4 or the inner wall of the first sealing ring 10 and the outer wall of the valve rod 8 can be attached tightly again only by screwing the fastener again, a compensation sealing effect is achieved, the top end of the second sealing ring 11 is prevented from shaking or deforming due to inward collapse through the arrangement of the convex edge 13, the sealing effect is further improved, the service life is prolonged, and the maintenance cost is reduced.

Example 4:

in this embodiment, in addition to the structural features of the foregoing embodiment, the method further includes:

a rotating shaft 14, one end of which is rotatably mounted on the bracket and the other end of which extends out of the bracket;

the hand wheel 15 is fixedly arranged at one end of the rotating shaft 14 extending out of the frame;

a worm 16 fixedly mounted in the middle of the rotating shaft 14;

and the worm wheel 17 is fixedly arranged at the top end of the valve rod 8 and is in transmission connection with the worm 16.

In this embodiment, because of the structure, the worm wheel 17 and the worm 16 are matched to have the advantages of large transmission ratio and compact structure, so that a worker can easily drive the valve rod 8 to rotate under the matching of the worm 16 and the worm wheel 17 by rotating the hand wheel 15, the butterfly valve can be easily opened, and the labor intensity of the worker is reduced.

Example 5:

in this embodiment, in addition to the structural features of the foregoing embodiment, the method further includes:

the scale 7 is made of a reflective material.

In this embodiment, owing to adopted foretell structure, the marker 6 of making through reflecting material can reflect the workman shine the light that produces through the torch under the darker or dark environment of light, improves the visibility, and the workman of being convenient for discerns scale 7, has improved the practicality and the suitability of butterfly valve.

It should be noted that, in this document, 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. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element. Further, it should be noted that the scope of the methods and apparatus of the embodiments of the present application is not limited to performing the functions in the order illustrated or discussed, but may include performing the functions in a substantially simultaneous manner or in a reverse order based on the functions involved, e.g., the methods described may be performed in an order different than that described, and various steps may be added, omitted, or combined. In addition, features described with reference to certain examples may be combined in other examples.

While the present embodiments have been described with reference to the accompanying drawings, it is to be understood that the utility model is not limited to the precise embodiments described above, which are meant to be illustrative and not restrictive, and that various changes may be made therein by those skilled in the art without departing from the spirit and scope of the utility model as defined by the appended claims.

Claims (5)

1. The utility model provides a visual butterfly valve of valve plate aperture, includes valve body (1), valve neck (4), gland (5) and valve rod (8), its characterized in that still includes:

the top surface of the marking piece (6) is provided with scales (7) and is arranged on the gland (5);

an indicator (2) mounted on the valve stem (8);

the indicating piece (2) rotates along with the valve rod (8) and is used for being matched with the scales (7) to indicate the rotating angle of the valve rod (8).

2. The butterfly valve with visualized valve plate opening according to claim 1, further comprising:

the sealing groove (9) is arranged on the inner wall of the valve neck (4);

the first sealing ring (10) is sleeved at the bottom of the sealing groove (9);

the sealing ring II (11) is sleeved at the top of the sealing groove (9), and the upper end and the lower end of the sealing ring II are respectively abutted against the top end of the sealing ring I (10) and the bottom surface of the gland (5); the annular groove (12) is arranged at the upper part of the outer wall of the first sealing ring (10);

the end faces of the first sealing ring (10) and the second sealing ring (11) in contact are inclined faces.

3. The butterfly valve with visualized valve plate opening according to claim 2, further comprising: the convex edge (13) is arranged on the bottom surface of the gland (5), and the outer wall of the convex edge is abutted against the inner wall of the second sealing ring (11);

and when the bottom surface of the gland (5) is abutted against the top surface of the second sealing ring (11), a gap exists between the bottom surface of the gland and the top surface of the gland (5).

4. The butterfly valve with visualized valve plate opening according to claim 1, further comprising:

one end of the rotating shaft (14) is rotatably arranged on the bracket, and the other end of the rotating shaft extends out of the bracket;

the hand wheel (15) is fixedly arranged at one end of the rotating shaft (14) extending out of the rack;

the worm (16) is fixedly arranged in the middle of the rotating shaft (14);

and the worm wheel (17) is fixedly arranged at the top end of the valve rod (8) and is in transmission connection with the worm (16).

5. The butterfly valve with visualized valve plate opening degree of claim 1, further comprising: the scale (7) is made of a reflective material.

Images