CN219366835U - Special butterfly valve casting for quick opening and closing thermal power - Google Patents

Abstract

The utility model discloses a special butterfly valve casting for quickly opening and closing a thermal power, which comprises a valve shell, wherein a locking plate is arranged at the top end of the valve shell, a valve core is arranged in the valve shell, the top end of the valve core penetrates through the locking plate and is fixedly connected with a handle, an inner groove is formed in the inner shell of the valve shell, sealing structures are fixed in the inner groove and the valve shell, and each sealing structure comprises a sealing ring and outer overturning sheets fixed on two sides of the sealing ring; including the bull stick in the case and be fixed in the butterfly valve piece of bull stick bottom, the sealing washer is fixed in the valve casing, in the inside groove was located to the external roll-over card, need pinch constantly, compress inside torsional spring, when reaching the position of appointed concave type tooth, loosen to bite, bite the front end bullet of handle and be fixed in the interval of concave type tooth, realize fixing, so this device compare with current structure, when using, compare in hand wheel or other structures, have the effect of realizing opening and close operation fast, and concave type tooth regularly distributes on the pinion rack moreover, the amplitude of bottom butterfly valve piece is opened in the accurate adjustment of facilitate the use, reach the effect of control.

Description

Special butterfly valve casting for quick opening and closing thermal power

Technical Field

The utility model relates to the field of butterfly valve assemblies, in particular to a butterfly valve casting special for quick start and stop of thermal power.

Background

At present, the butterfly valve body is widely used in the field of sealing pipelines in petrochemical industry, and along with the increase of the pipe diameter of the sealing pipeline, the caliber of the butterfly valve body is gradually increased to more than 2 meters, and the butterfly valve body with the diameter of more than 1.8 meters is called as a large valve body structure.

The large-scale butterfly valve body sold in the market at present is formed by welding steel plates, and the butterfly valve body formed by welding has the following defects: when the butterfly valve casting is connected, the pipeline connection is very troublesome because the caliber is too large and the liquid in the butterfly valve is too much to cause the inhibition effect on the connection of the pipeline, and the butterfly valve casting service efficiency is reduced because the connecting pipeline makes the butterfly valve stop for a long time.

Disclosure of Invention

In order to overcome the defects in the prior art, the special butterfly valve casting for the quick opening and closing of the thermal power is provided, through the handle and the locking plate structure, a user can open and close the butterfly valve through the valve core structure in the handle rotation, when the handle at the bottom of the handle rotates, the handle needs to be pinched at all times, the internal torsion spring is compressed, when the handle reaches the position of the appointed concave tooth, the handle is loosened, the front end of the handle is sprung and fixed in the space of the concave tooth, and the fixation is realized.

In order to solve the technical problems, the utility model provides the following technical scheme: the utility model provides a special butterfly valve foundry goods of quick start-stop thermal power, includes the valve casing, the top of valve casing is provided with the locking plate, the inside of valve casing is provided with the case, locking plate and handle fixed connection are run through on the top of case, the inside groove has been seted up to the inner shell of valve casing, the inside of inside groove and valve casing is fixed with seal structure, include the sealing washer in the seal structure and be fixed in the outer skin of turning over of sealing washer both sides.

As a preferable technical scheme of the utility model, the valve core comprises a rotating rod and a butterfly valve piece fixed at the bottom end of the rotating rod, the sealing ring is fixed in the valve casing, and the turning-out leather is clamped in the inner groove.

As a preferable technical scheme of the utility model, the rotating rod is arranged in the valve casing, and the top end of the rotating rod penetrates through the locking plate and is fixed at the middle part of the front end of the handle.

As a preferable technical scheme of the utility model, the locking plate comprises a toothed plate and concave teeth arranged on the inner side of the toothed plate, and the concave teeth occupy half of the circumference of the toothed plate.

As a preferable technical scheme of the utility model, the handle comprises a rotating handle and a biting handle fixed at the bottom end of the rotating handle through a torsion spring, the front end of the biting handle is of a round corner structure, and the size of the front end of the biting handle is matched with the distance between tooth plates.

As a preferable technical scheme of the utility model, the hole groove structure and the rotating rod which are arranged at the front end of the rotating handle are square structures.

Compared with the prior art, the utility model has the following beneficial effects:

1. in this device, through the seal structure who sets up, when normal use, set up in the seal structure in the case outside, can play the effect of strengthening seal, also avoided the butterfly valve piece direct to contact with the inner wall of valve casing simultaneously, play the effect of protection.

2. In this device, through handle and the locking plate structure that sets up, the user can open and close the butterfly valve through the rotatory inside case structure of handle, and the bite of changeing the bottom when rotatory, need pinch constantly, compress inside torsional spring, when reaching the position of appointed concave type tooth, loosen to bite, bite the front end bullet and be fixed in the interval of concave type tooth, realize fixing, so this device is than with current structure, when using, compare in hand wheel or other structures, have the effect of realizing opening and close the operation fast, moreover concave type tooth is distributed at the law on the pinion rack, the range of bottom butterfly valve sheet is opened in the accurate adjustment of facilitate the use, reach the effect of control.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a structural exploded view of the present utility model;

FIG. 3 is a top plan view of the structure of the present utility model;

fig. 4 is a side view of the structure of the present utility model.

Wherein: 1. a valve housing; 11. an inner tank; 2. a valve core; 3. a sealing structure; 31. a seal ring; 32. turning over the skin outwards; 4. a locking plate; 41. a toothed plate; 42. concave teeth; 5. a handle; 51. a rotating handle; 52. a biting handle.

Detailed Description

In order that the manner in which the above recited features, objects and advantages of the present utility model are obtained will become readily apparent, a more particular description of the utility model will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings. Based on the examples in the embodiments, those skilled in the art can obtain other examples without making any inventive effort, which fall within the scope of the utility model. The experimental methods in the following examples are conventional methods unless otherwise specified, and materials, reagents, etc. used in the following examples are commercially available unless otherwise specified.

Examples:

as shown in fig. 1-4, the utility model provides a special butterfly valve casting for quickly opening and closing a thermal power, which comprises a valve casing 1, wherein a locking plate 4 is arranged at the top end of the valve casing 1, a valve core 2 is arranged in the valve casing 1, the top end of the valve core 2 penetrates through the locking plate 4 and is fixedly connected with a handle 5, an inner groove 11 is formed in the inner casing of the valve casing 1, a sealing structure 3 is fixed in the inner groove 11 and the valve casing 1, and the sealing structure 3 comprises a sealing ring 31 and an outer turning-over skin 32 fixed on two sides of the sealing ring 31.

In other embodiments, the valve core 2 comprises a rotating rod and a butterfly valve piece fixed at the bottom end of the rotating rod, the sealing ring 31 is fixed in the valve housing 1, the turning-out leather 32 is clamped in the inner groove 11, the rotating rod is arranged in the valve housing 1, the top end of the rotating rod penetrates through the locking plate 4 and is fixed at the middle part of the front end of the handle 5, the locking plate 4 comprises a toothed plate 41 and concave teeth 42 arranged at the inner side of the toothed plate 41, the concave teeth 42 occupy half of the circumference of the toothed plate 41, the handle 5 comprises a rotating handle 51 and a biting handle 52 fixed at the bottom end of the rotating handle 51 through a torsion spring, the front end of the biting handle 52 is in a round-angle structure, and the front end size of the biting handle 52 is matched with the interval of the toothed plate 41; through the handle 5 and the locking plate 4 structure that set up, the user can open and close the butterfly valve through the inside case 2 structure of handle 5 rotation, and the bite 52 of changeing the 51 bottom need pinch constantly when rotatory, compress inside torsional spring, when reaching the position of appointed concave type tooth 42, loosen bite 52, bite 52's front end bullet and be fixed in the interval of concave type tooth 42, realize fixing, so this device is compared with current structure, when using, compare in hand wheel or other structures, have the effect of quick realization opening and close operation, moreover concave type tooth 42 is at the regular distribution on pinion rack 41, the amplitude of bottom butterfly valve sheet is opened in convenient accurate adjustment of user, reach the effect of control.

In other embodiments, the hole groove structure and the rotating rod formed at the front end of the rotating handle 51 are both square structures; and through the seal structure 3 that sets up, during normal use, set up in the seal structure in case 2 outsides, can play the effect of strengthening seal, also avoided the butterfly valve piece to directly contact with the inner wall of valve casing 1 simultaneously, play the effect of protection.

The foregoing has shown and described the basic principles, principal features and advantages of the utility model. It will be understood by those skilled in the art that the present utility model is not limited to the above-described embodiments, and that the above-described embodiments and descriptions are only preferred embodiments of the present utility model, and are not intended to limit the utility model, and that various changes and modifications may be made therein without departing from the spirit and scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims (6)

1. The utility model provides a special butterfly valve foundry goods of quick start-stop thermal power, includes valve casing (1), its characterized in that: the novel valve is characterized in that a locking plate (4) is arranged at the top end of the valve casing (1), a valve core (2) is arranged in the valve casing (1), the top end of the valve core (2) penetrates through the locking plate (4) and is fixedly connected with the handle (5), an inner groove (11) is formed in the inner shell of the valve casing (1), a sealing structure (3) is fixed in the inner groove (11) and the valve casing (1), and the sealing structure (3) comprises a sealing ring (31) and outer overturning skins (32) fixed on two sides of the sealing ring (31).

2. The quick start and stop dedicated butterfly valve casting according to claim 1, wherein: the valve core (2) comprises a rotating rod and a butterfly valve piece fixed at the bottom end of the rotating rod, the sealing ring (31) is fixed in the valve casing (1), and the outer turning-over skin (32) is clamped in the inner groove (11).

3. The quick start and stop dedicated butterfly valve casting according to claim 2, characterized in that: the rotating rod is arranged in the valve casing (1), and the top end of the rotating rod penetrates through the locking plate (4) and is fixed in the middle of the front end of the handle (5).

4. The quick start and stop dedicated butterfly valve casting according to claim 1, wherein: the locking plate (4) comprises a toothed plate (41) and concave teeth (42) arranged on the inner side of the toothed plate (41), and the concave teeth (42) occupy half of the circumference of the toothed plate (41).

5. The quick start and stop dedicated butterfly valve casting according to claim 4, wherein: the handle (5) comprises a rotating handle (51) and a biting handle (52) fixed at the bottom end of the rotating handle (51) through a torsion spring, the front end of the biting handle (52) is of a round corner structure, and the front end size of the biting handle (52) is matched with the distance between the toothed plates (41).

6. The quick start and stop dedicated butterfly valve casting according to claim 5, wherein: the hole groove structure and the rotating rod which are arranged at the front end of the rotating handle (51) are square structures.