CN219932974U

CN219932974U - Two-way sealing butterfly valve

Info

Publication number: CN219932974U
Application number: CN202321150580.3U
Authority: CN
Inventors: 胡旭
Original assignee: Weisa Shenyang Fluid Control Technology Co ltd
Current assignee: Weisa Shenyang Fluid Control Technology Co ltd
Priority date: 2023-05-12
Filing date: 2023-05-12
Publication date: 2023-10-31
Anticipated expiration: 2033-05-12

Abstract

The utility model discloses a bidirectional sealing butterfly valve, which relates to the technical field of butterfly valves and comprises a valve body, wherein a front flange is fixedly arranged at the front end and the rear end of the valve body, a rear flange is fixedly arranged at the rear end of the valve body, a butterfly plate is arranged in the valve body, a rotating structure is arranged on the butterfly plate, the rotating structure comprises a motor, a mounting plate, a fixing plate and a rotating shaft, a sealing structure is arranged on the butterfly plate, and the sealing structure comprises a mounting groove, an air bag, an air pipe, an inflator pump, an exhaust pipe and an electromagnetic valve. This set up the mounting groove on the butterfly plate, install the gasbag in the mounting groove, when closing the butterfly valve, rotate through the motor area butterfly plate, cut off in the butterfly valve, rethread pump is inflated the gasbag, makes gasbag surface and the mutual butt of butterfly valve inside wall, seals, need not install the sealing washer on the butterfly plate, need not often change the sealing washer, resources are saved, the gasbag has still strengthened the leakproofness of butterfly valve.

Description

Two-way sealing butterfly valve

Technical Field

The utility model relates to the technical field of butterfly valves, in particular to a two-way sealing butterfly valve.

Background

The butterfly valve is also called as a flap valve, and is a simple-structure regulating valve, the butterfly valve capable of being used for the on-off control of low-pressure pipeline medium is characterized in that a closing member is a disc, the butterfly valve rotates around a valve shaft to achieve the purpose of opening and closing, the valve can be used for controlling the flow of various types of fluids such as air, water, steam, various corrosive mediums, slurry, oil products, liquid metal, radioactive mediums and the like, the butterfly valve mainly plays the roles of cutting off and throttling on a pipeline, and the butterfly valve opening and closing member is a disc-shaped butterfly plate and rotates around the axis of the butterfly valve in a valve body, so that the purpose of opening and closing or regulating is achieved.

CN115574101a discloses a two-way soft seal butterfly valve, relates to butterfly valve technical field, including valve body and butterfly plate, four disk seats are installed to the arc surface of valve body, the inside of valve body is provided with the valve pocket, the butterfly plate sets up in the valve pocket of valve body with the help of the valve rod, one side interference of butterfly plate is connected with elastic sealing washer, the outside of sealing washer is equipped with the clamp plate circle, the clamp plate circle is with bolt fixed connection on the butterfly plate, the sealing washer is with the help of clamp plate circle butt on the butterfly plate, the inboard of valve body is equipped with the annular convex part that the cross section is trapezoidal, the medial surface of annular convex part comprises preceding inclined plane A, well inclined plane B and back inclined plane C, the lateral surface that the sealing washer is close to annular convex part is curved evagination, the outer convex surface of sealing washer and the well inclined plane B butt of annular convex part. The utility model solves the problems that the sealing structure is unreasonable in design or the sealing assembly is aged and not replaced in time.

The prior art has the following problems: after the sealing ring on the butterfly plate is used for a long time, the sealing ring and the inner side wall of the butterfly valve are rubbed with each other, so that the sealing property of the butterfly valve can be influenced, leakage can be caused, the sealing ring is required to be replaced frequently, and the operation is inconvenient.

Therefore, it is desirable to provide a bi-directional sealing butterfly valve that avoids the problem of abrasion caused by the friction between the seal ring and the inner side wall of the butterfly valve, and the sealing performance of the butterfly valve is affected.

Disclosure of Invention

The sealing ring on the butterfly plate is rubbed with the inner side wall of the butterfly valve after being used for a long time, the sealing ring is easy to wear, the tightness of the butterfly valve can be affected, leakage can be caused, and the sealing ring is required to be replaced frequently, so that the problem of inconvenience in operation is solved.

According to one aspect of the utility model, a bidirectional sealing butterfly valve is provided, and comprises a valve body, wherein a front flange is fixedly arranged at the front end and the rear end of the valve body, a rear flange is fixedly arranged at the rear end of the valve body, a butterfly plate is arranged in the valve body, a rotating structure is arranged on the butterfly plate, the rotating structure comprises a motor, a mounting plate, a fixing plate and a rotating shaft, a sealing structure is arranged on the butterfly plate, and the sealing structure comprises a mounting groove, an air bag, an air pipe, an inflator pump, an exhaust pipe and an electromagnetic valve.

Specifically, the motor is installed to the valve body top, the motor bottom is fixed on the mounting panel, both ends bottom fixed mounting has the fixed plate about the mounting panel, the fixed plate bottom is fixed at the valve body top.

Further, the motor output end passes through the mounting plate and installs the pivot, the motor output end rotates with the mounting plate and is connected, the pivot lower extreme passes the valve body top and installs in the butterfly plate.

Further, a sealing ring is arranged at the contact position of the rotating shaft and the top of the valve body, the rotating shaft is rotationally connected with the top of the valve body and the sealing ring, and the rotating shaft is fixedly connected with the butterfly plate.

Specifically, the outer lane is provided with the mounting groove on the butterfly plate, fixed mounting has the gasbag in the mounting groove, gasbag and pivot sealing connection, the gas-supply pipe is installed at the gasbag top, the gas-supply pipe embedding is installed inside the pivot, the gas-supply pipe input passes the pivot lateral wall.

Further, an exhaust pipe is arranged at the top of the right end of the gas pipe, an electromagnetic valve is arranged on the exhaust pipe, and an inflator pump is arranged at the input end of the gas pipe.

According to the embodiment of the utility model, the mounting groove is formed in the butterfly plate, the air bag is arranged in the mounting groove, when the butterfly valve is closed, the motor rotates with the butterfly plate to partition the butterfly valve, and then the air bag is inflated through the inflator pump, so that the outer surface of the air bag is mutually abutted with the inner side wall of the butterfly valve to seal, a sealing ring is not required to be arranged on the butterfly plate, the sealing ring is not required to be replaced frequently, resources are saved, and the air bag further enhances the sealing performance of the butterfly valve.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the utility model, and that other drawings can be obtained from these drawings without inventive faculty for a person skilled in the art.

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

FIG. 2 is a schematic diagram of a front view of an embodiment of the present utility model;

FIG. 3 is an enlarged schematic view of the structure of FIG. 2A according to an embodiment of the present utility model;

fig. 4 is a schematic side view of an embodiment of the present utility model.

In the figure: 1. a valve body; 2. a front flange; 3. a rear flange; 4. a butterfly plate; 5. a motor; 6. a mounting plate; 7. a fixing plate; 8. a rotating shaft; 9. a mounting groove; 10. an air bag; 11. a gas pipe; 12. an inflator pump; 13. an exhaust pipe; 14. an electromagnetic valve; 15. and (3) sealing rings.

Detailed Description

In order that those skilled in the art will better understand the present utility model, a technical solution in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in which it is apparent that the described embodiments are only some embodiments of the present utility model, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present utility model without making any inventive effort, shall fall within the scope of the present utility model.

It should be noted that the terms "first," "second," and the like in the description and the claims of the present utility model and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate in order to describe the embodiments of the utility model herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

In the present utility model, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal" and the like indicate an azimuth or a positional relationship based on that shown in the drawings. These terms are only used to better describe the present utility model and its embodiments and are not intended to limit the scope of the indicated devices, elements or components to the particular orientations or to configure and operate in the particular orientations.

Also, some of the terms described above may be used to indicate other meanings in addition to orientation or positional relationships, for example, the term "upper" may also be used to indicate some sort of attachment or connection in some cases. The specific meaning of these terms in the present utility model will be understood by those of ordinary skill in the art according to the specific circumstances.

Furthermore, the terms "mounted," "configured," "provided," "connected," "coupled," and "sleeved" are to be construed broadly. For example, it may be a fixed connection, a removable connection, or a unitary construction; may be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements, or components. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

It should be noted that, without conflict, the embodiments of the present utility model and features of the embodiments may be combined with each other. The utility model will be described in detail below with reference to the drawings in connection with embodiments.

Referring to fig. 1-4, a bidirectional sealing butterfly valve comprises a valve body 1, a front flange 2 is fixedly arranged at the front end and the rear end of the valve body 1, a rear flange 3 is fixedly arranged at the rear end of the valve body 1, a butterfly plate 4 is arranged in the valve body 1, a rotating structure is arranged on the butterfly plate 4 and comprises a motor 5, a mounting plate 6, a fixing plate 7 and a rotating shaft 8, a sealing structure is arranged on the butterfly plate 4 and comprises a mounting groove 9, an air bag 10, an air pipe 11, an inflator pump 12, an exhaust pipe 13 and an electromagnetic valve 14.

The motor 5 is installed above the valve body 1, the bottom of the motor 5 is fixed on the mounting plate 6, the bottom of the left end and the right end of the mounting plate 6 is fixedly provided with the fixing plate 7, and the bottom of the fixing plate 7 is fixed at the top of the valve body 1.

The output end of the motor 5 passes through the mounting plate 6 to be provided with a rotating shaft 8, the output end of the motor 5 is rotationally connected with the mounting plate 6, and the lower end of the rotating shaft 8 passes through the top of the valve body 1 to be arranged in the butterfly plate 4.

The sealing ring 15 is arranged at the contact position of the rotating shaft 8 and the top of the valve body 1, the rotating shaft 8 is rotationally connected with the top of the valve body 1 and the sealing ring 15, and the rotating shaft 8 is fixedly connected with the butterfly plate 4.

The outer lane is provided with mounting groove 9 on the butterfly plate 4, mounting groove 9 internal fixation has gasbag 10, gasbag 10 and pivot 8 sealing connection, gas-supply pipe 11 is installed at the gasbag 10 top, gas-supply pipe 11 embedding is installed inside pivot 8, gas-supply pipe 11 input passes pivot 8 lateral wall.

An exhaust pipe 13 is arranged at the top of the right end of the gas pipe 11, an electromagnetic valve 14 is arranged on the exhaust pipe 13, and an inflator pump 12 is arranged at the input end of the gas pipe 11.

When the butterfly valve is used, the left end and the right end of the butterfly valve are arranged on a pipeline through the front flange 2 and the rear flange 3, the butterfly plate 4 is controlled to be opened and closed through the motor 5 and the rotating shaft 8, the mounting groove 9 is arranged on the butterfly plate 4, the air bag 10 is arranged in the mounting groove 9, when the butterfly valve is closed, the butterfly plate 4 is driven to rotate through the motor 5, the butterfly valve is partitioned, the air bag 10 is inflated through the inflator pump 12, the outer surface of the air bag 10 is abutted against the inner side wall of the butterfly valve to seal the butterfly valve, the sealing ring 15 is not required to be arranged on the butterfly plate 4, the problems that the sealing ring 15 and the inner side wall of the butterfly valve are rubbed mutually, abrasion is caused, the tightness of the butterfly valve is affected and leakage is caused are avoided, the exhaust pipe 13 and the electromagnetic valve 14 are arranged on the air bag 10, when the butterfly valve is opened, the electromagnetic valve 14 is started, the air in the air bag 10 is discharged, the butterfly plate 4 is driven to rotate through the motor 5, the pipeline at the two ends is communicated, the air bag 10 is arranged on the butterfly plate 4, the sealing ring 15 is not required to be arranged, and resources are saved.

The utility model has the advantages that:

1. through should setting up mounting groove 9 on butterfly plate 4, install gasbag 10 in the mounting groove 9, when closing the butterfly valve, take butterfly plate 4 to rotate through motor 5, cut off in to the butterfly valve, rethread pump 12 aerifys gasbag 10, makes gasbag 10 surface and butterfly valve inside wall butt each other, seals, need not install sealing washer 15 on butterfly plate 4 to avoided sealing washer 15 and butterfly valve inside wall to rub each other, caused wearing and tearing, influenced the leakproofness of butterfly valve, led to the problem of leakage.

2. By installing the air bag 10 on the butterfly plate 4, the sealing ring 15 does not need to be installed, so that the sealing ring 15 does not need to be replaced frequently, resources are saved, and the air bag 10 further enhances the sealing performance of the butterfly valve.

The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A two-way seal butterfly valve, characterized in that: including valve body (1), flange (2) before valve body (1) front and back end fixed mounting has, flange (3) behind valve body (1) rear end fixed mounting has, install butterfly plate (4) in valve body (1), install rotating-structure on butterfly plate (4), rotating-structure includes motor (5), mounting panel (6), fixed plate (7) and pivot (8), be provided with seal structure on butterfly plate (4), seal structure includes mounting groove (9), gasbag (10), gas-supply pipe (11), pump (12), blast pipe (13) and solenoid valve (14).

2. The bi-directional sealing butterfly valve of claim 1, wherein: the motor (5) is installed above the valve body (1), the bottom of the motor (5) is fixed on the mounting plate (6), the bottom of the left end and the right end of the mounting plate (6) is fixedly provided with the fixing plate (7), and the bottom of the fixing plate (7) is fixed at the top of the valve body (1).

3. A bi-directional sealing butterfly valve according to claim 2, wherein: the output end of the motor (5) penetrates through the mounting plate (6) to be provided with a rotating shaft (8), the output end of the motor (5) is rotationally connected with the mounting plate (6), and the lower end of the rotating shaft (8) penetrates through the top of the valve body (1) to be mounted in the butterfly plate (4).

4. A bi-directional sealing butterfly valve according to claim 3, wherein: the rotary shaft (8) is connected with the top of the valve body (1) in a rotary mode, the sealing ring (15) is arranged at the contact position of the rotary shaft (8) and the top of the valve body (1), the rotary shaft (8) is connected with the sealing ring (15) in a rotary mode, and the rotary shaft (8) is fixedly connected with the butterfly plate (4).

5. The bi-directional sealing butterfly valve of claim 1, wherein: the butterfly plate is characterized in that an installing groove (9) is formed in the outer ring of the butterfly plate (4), an air bag (10) is fixedly installed in the installing groove (9), the air bag (10) is in sealing connection with the rotating shaft (8), an air pipe (11) is installed at the top of the air bag (10), the air pipe (11) is embedded and installed inside the rotating shaft (8), and the input end of the air pipe (11) penetrates through the side wall of the rotating shaft (8).

6. The bi-directional seal butterfly valve of claim 5, wherein: an exhaust pipe (13) is arranged at the top of the right end of the air pipe (11), an electromagnetic valve (14) is arranged on the exhaust pipe (13), and an inflator pump (12) is arranged at the input end of the air pipe (11).