CN217301638U

CN217301638U - Flange type electric butterfly valve

Info

Publication number: CN217301638U
Application number: CN202221292312.0U
Authority: CN
Inventors: 邱继泉; 张雪豹; 霍焕振; 邱永
Original assignee: Top New Energy Technology Shandong Co Ltd
Current assignee: Top New Energy Technology Shandong Co Ltd
Priority date: 2022-05-27
Filing date: 2022-05-27
Publication date: 2022-08-26
Anticipated expiration: 2032-05-27

Abstract

The utility model discloses a flange formula electric butterfly valve, including the butterfly valve main part and with the butterfly valve main part in the valve rod that the bottom rotated the setting, the valve rod is connected with the butterfly plate through buffer, the valve rod top is run through the butterfly valve main part and is connected with electric actuator, butterfly valve main part both sides all are provided with first ring flange, first ring flange is connected with the second ring flange through fixing device, fixing device includes that a plurality of passes through the fixed plate of bolted connection in the outer terminal surface of first ring flange, a plurality of fixed plate one side is rotated and is connected with the bull stick, there is a screw thread section of thick bamboo through threaded connection on the bull stick, the outer fixed cover of screw thread section of thick bamboo is equipped with the pressure strip, a plurality of and the pressure strip looks adaptation's pressure groove is seted up to the outer terminal surface edge of second ring flange. A plurality of fixing devices are installed around the flange plate, the installation and the disassembly are convenient, the time of workers is greatly saved, the working efficiency is improved, and then the butterfly plate is provided with a buffer device, so that the abrasion of the butterfly plate is reduced, and the service life of the butterfly plate is prolonged.

Description

Flange type electric butterfly valve

Technical Field

The utility model relates to an electric butterfly valve technical field specifically is a flange formula electric butterfly valve.

Background

The electric butterfly valve belongs to one of electric valve and electric control valve. The electric butterfly valve mainly has the following connection modes: flange and wafer type; the sealing form of the electric butterfly valve mainly comprises: rubber seals and metal seals. The electric butterfly valve controls the opening and closing of the butterfly valve through a power signal. The product can be used as a shut-off valve, a control valve and a check valve of a pipeline system. The manual control device is attached, so that once a power failure occurs, the manual operation can be temporarily carried out, and the use is not influenced.

With the development of electric valves, a plurality of well-known valve enterprises are available at home and abroad for producing the electric valves, and the electric butterfly valve is an important execution unit in the field of industrial automation control. It belongs to one of electric valve and electric control valve. The method is widely applied to the fields of spinning, power stations, petrochemical industry, heat supply and refrigeration, pharmacy, shipbuilding, metallurgy, light industry, environmental protection and the like. The product can be used as a shut-off valve, a control valve and a check valve of a pipeline system. The complete manual control device and the electric or pneumatic transmission device can meet specific conditions of different working conditions. Meets the most strict quality requirements and can be applied for a long time. Particularly in the metallurgical steel and ship industries, the method has very high popularity. The connected mode is the electric butterfly valve of flange formula, the valve body both sides are provided with two ring flanges, pass through a plurality of bolt and nut with the ring flange of transportation pipeline and be connected, bolt and nut generally are independent bagging-off, separately set up with the ring flange, when the installation, need the nut of screwing up again of construction bolt one by one, it wastes time and energy to compare during the installation, also very inconvenient during the dismantlement, on the other hand is that bolt and nut loses easily before the installation, lead to changing bolt incremental cost, the defect in addition is when just the butterfly plate of disc is opened and closeThe liquid is impacted in the flowing direction, so that the abrasion is easy to generate, and the sealing property of the butterfly valve is influenced _。

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a flange formula electric butterfly valve to solve traditional flange joint's installation and dismantle complicated and the easy problem that wears and teares of butterfly plate.

In order to achieve the purpose, the utility model designs a flange type electric butterfly valve, which comprises a butterfly valve main body and a valve rod rotatably arranged with the bottom in the butterfly valve main body, wherein the valve rod is connected with a butterfly plate through a buffer device, the top of the valve rod penetrates through the butterfly valve main body and is connected with an electric actuating mechanism, two sides of the butterfly valve main body are both provided with first flange plates, and the first flange plates are connected with second flange plates through fixing devices;

the fixing device comprises a plurality of fixing plates connected to the outer end face of the first flange plate through bolts, a rotating rod is connected to one side of each fixing plate in a rotating mode, a threaded cylinder is connected to the rotating rod through threads, a pressing plate is fixedly sleeved outside the threaded cylinder, and a plurality of pressing grooves matched with the pressing plate are formed in the edge of the outer end face of the second flange plate.

As a further aspect of the present invention: one end of the rotating rod is connected with a force application block. The setting of application of force piece is convenient to carry out the application of force to the bull stick and is rotated.

As a further aspect of the present invention: the inner end face of the second flange plate is provided with a plurality of positioning clamping blocks, and the inner end face of the first flange plate is provided with positioning clamping grooves matched with the positioning clamping blocks. The cooperation of positioning fixture block and positioning slot plays spacing effect to first ring flange and second ring flange, the fixing device's of being convenient for installation.

As a further aspect of the present invention: buffer includes the baffle-box through lantern ring and valve rod installation, be provided with a plurality of telescopic links in the baffle-box, it is a plurality of the telescopic link is connected with the buffer board, the telescopic link overcoat is equipped with the spring, the baffle-box inner wall is connected to spring one end, and the buffer board is connected to the other end, the buffer board is connected with a plurality of cushion posts, the cushion post runs through the buffer-box and is connected with the butterfly plate. The buffer device slows down the impact wear of liquid to the butterfly plate and prolongs the service life of the butterfly plate.

As a further aspect of the present invention: the buffer column and the buffer box are arranged in a sliding mode, and a sealing sleeve is arranged at the position, in contact with the buffer box, of the buffer column. The seal cover improves the sealed between buffer column and the baffle-box, prevents that the liquid seepage from advancing the baffle-box.

As a further aspect of the present invention: an annular sealing groove is formed in the inner end face of the second flange plate, and a sealing ring is arranged in the annular sealing groove. The sealing ring is used for improving the sealing between the first flange plate and the second flange plate and preventing leakage.

The utility model has the advantages that: through adopting above technical scheme, set up neotype flange joint structure, installed a plurality of fixing device around the ring flange, traditional bolted connection relatively, this fixing device is connected with first ring flange, is convenient for accomodate, has avoided taking in the problem that loses easily alone of bolt to it is more convenient to install and dismantle, has saved staff's time greatly, has improved work efficiency, and secondly the butterfly plate has set up buffer, has reduced the wearing and tearing of butterfly plate, has improved the life of butterfly plate.

Drawings

FIG. 1 is a cross-sectional view of the present invention;

FIG. 2 is a side view of an electric butterfly valve;

FIG. 3 is an enlarged view of a portion of FIG. 1A;

FIG. 4 is a schematic view of the position of the fixing device;

fig. 5 is a schematic structural view of the second flange.

In the figure: 1. a butterfly valve body; 2. a valve stem; 3. a buffer device; 30. a collar; 31. a buffer tank; 32. a telescopic rod; 33. a buffer plate; 34. a spring; 35. a buffer column; 36. sealing sleeves; 4. a butterfly plate; 5. an electric actuator; 6. a first flange plate; 7. a second flange plate; 8. a bolt; 9. a fixing plate; 10. a rotating rod; 11. a threaded barrel; 12. a compression plate; 13. a compaction groove; 14. a force application block; 15. positioning a fixture block; 16. positioning the clamping groove; 17. an annular seal groove; 18. and (6) sealing rings.

Detailed Description

The drawings are for illustrative purposes only, and some components in the drawings may be omitted, enlarged or reduced for better explanation of the present embodiments, and do not represent the size of an actual product.

In the description of this patent, it is to be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientations and positional relationships indicated in the drawings for the convenience of describing the patent and for the simplicity of description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the patent.

In the description of this patent, it is noted that unless otherwise specifically stated or limited, the terms "mounted," "connected," and "disposed" are to be construed broadly and can include, for example, fixedly connected, disposed, detachably connected, disposed, or integrally connected and disposed. The specific meaning of the above terms in this patent may be understood by one of ordinary skill in the art as appropriate.

Referring to the attached drawings 1 and 2, a flange type electric butterfly valve comprises a butterfly valve body 1 and a valve rod 2 rotatably arranged at the bottom in the butterfly valve body 1, wherein the top of the valve rod 2 penetrates through the butterfly valve body 1 to be connected with an electric actuator 5, two sides of the butterfly valve body 1 are respectively provided with a first flange 6, the first flange 6 is connected with a second flange 7 through a fixing device, one side of the first flange 6, which is contacted with the second flange 7, is an inner end surface, one side of the first flange 6, which is far away from the contact surface, and the second flange 7 are outer end surfaces, the fixing device comprises a plurality of fixing plates 9 connected with the outer end surface of the first flange 6 through bolts 8, one side of each fixing plate 9 is rotatably connected with a rotating rod 10, the outer side of each rotating rod is provided with partial threads, one end of each rotating rod 10 is connected with a force application block 14, the outer side surface of each force application block 14 is provided with a hole for a screwdriver, and the force application block 14 is shown in the attached drawing 2, a threaded cylinder 11 is connected to the rotating rod 10 through threads, an internal thread is formed in the threaded cylinder 11, and part of the internal thread is in threaded connection with the rotating rod 10, as shown in fig. 4, a pressing plate 12 is fixedly sleeved outside the threaded cylinder 11, the threaded cylinder 11 and the front end of the rotating rod 10 are arranged in a sliding mode, after the pressing plate 12 enters a part of the pressing groove 13, the threaded cylinder 11 is in threaded contact with the outside of the rotating rod 10 and is in threaded connection, a plurality of pressing grooves 13 matched with the pressing plate 12 are formed in the edge of the outer end face of the second flange 7, a plurality of positioning clamping blocks 15 are arranged on the inner end face of the second flange 7, positioning clamping grooves 16 matched with the positioning clamping blocks 15 are formed in the inner end face of the first flange 6, and the positions of the positioning clamping grooves 16 are shown in fig. 5. The positions of the positioning clamping grooves 16 and the positioning clamping blocks 15 are set to be just opposite to the positions of the pressing plates 12 and the pressing grooves 13 after the positioning clamping blocks 15 are matched with the positioning clamping grooves 16. When carrying out the electric butterfly valve installation of pipeline, rotate earlier bull stick 10 and drive pressure strip 12 and turn to one side, then the location fixture block 15 of second ring flange 7 corresponds the installation with the positioning groove 16 of first ring flange 6, rotate bull stick 10 and drive pressure strip 12 and turn to the position that corresponds with compressing tightly groove 13, the pressure strip 12 that slides down gets into and compresses tightly 13 partly, rotate bull stick 10 through application of force piece 14 with the screwdriver, it is spacing to pressure strip 12 through compressing tightly groove 13, threaded connection outside threaded cylinder 11 and bull stick 10, the downstream, drive pressure strip 12 and in compressing tightly groove 13 downstream, compress tightly fixedly first ring flange 6 and second ring flange 7.

Further, valve rod 2 is connected with butterfly plate 4 through buffer 3, the structure is shown in fig. 3, buffer 3 sets up in the direction that liquid flows relatively, slow down the impact, buffer 3 includes buffer 31 through lantern ring 30 and the installation of valve rod 2, be provided with a plurality of telescopic links 32 in the buffer 31, a plurality of telescopic links 32 are connected with buffer 33, telescopic link 32 overcoat is equipped with spring 34, buffer 31 inner wall is connected to spring 34 one end, buffer 33 is connected to the other end, buffer 33 is connected with a plurality of cushion posts 35, buffer post 35 runs through buffer 31 and is connected with butterfly plate 4, buffer post 35 slides with buffer 31 and sets up, the position that buffer post 35 and buffer 31 contact is provided with seal cover 36, seal cover 36 prevents that liquid from permeating into buffer 31. When carrying out the closing of valve, start 5 electric valve rod 2 rotations of electric actuator, drive the butterfly plate 4 rotation of being connected with buffer 3 then, liquid strikes butterfly plate 4, and butterfly plate 4 receives the impact force, drives buffering post 35 and removes, extrudes buffer board 33, and buffer board 33 extrudes telescopic link 32 shrink, and the removal that buffer board 33 was slowed down to spring 34's elasticity is strikeed.

Furthermore, an annular seal groove 17 is formed in the inner end face of the second flange 7, and a seal ring 18 is arranged in the annular seal groove 17. The sealing between the first flange 6 and the second flange 7 is improved, and leakage is prevented.

The working principle is as follows: when the electric butterfly valve of the pipeline is installed, firstly, the rotating rod 10 is rotated to drive the pressing plate 12 to rotate to one side, then, the positioning clamping block 15 of the second flange plate 7 is installed corresponding to the positioning clamping groove 16 of the first flange plate 6, the rotating rod 10 is rotated to drive the pressing plate 12 to rotate to the position corresponding to the pressing groove 13, the pressing plate 12 slides downwards to enter one part of the pressing groove 13, a screwdriver is used for rotating the rotating rod 10 through the force application block 14, the pressing plate 12 is limited through the pressing groove 13, the threaded cylinder 11 is connected with the outer thread of the rotating rod 10, the pressing plate 12 is driven to move downwards in the pressing groove 13, and the first flange plate 6 and the second flange plate 7 are pressed and fixed.

To sum up, the present invention is not limited to the above-mentioned specific embodiments. Those skilled in the art may make numerous changes and modifications without departing from the spirit and scope of the present invention. The protection scope of the present invention shall be subject to the claims of the present invention.

Claims

1. A flange type electric butterfly valve comprises a butterfly valve main body (1) and a valve rod (2) rotatably arranged at the bottom in the butterfly valve main body (1), and is characterized in that the valve rod (2) is connected with a butterfly plate (4) through a buffer device (3), the top of the valve rod (2) penetrates through the butterfly valve main body (1) and is connected with an electric actuating mechanism (5), two sides of the butterfly valve main body (1) are respectively provided with a first flange (6), and the first flange (6) is connected with a second flange (7) through a fixing device;

fixing device includes that a plurality of passes through bolt (8) to be connected in fixed plate (9) of first ring flange (6) outer terminal surface, and is a plurality of fixed plate (9) one side is rotated and is connected with bull stick (10) that the outside is equipped with partial screw thread, there is a screw thread section of thick bamboo (11) through threaded connection on bull stick (10), screw thread section of thick bamboo (11) external fixation cover is equipped with pressure strip (12), a plurality of compressing tightly groove (13) with pressure strip (12) looks adaptation are seted up to the outer terminal surface edge of second ring flange (7).

2. A flange type electric butterfly valve according to claim 1, characterized in that an urging block (14) is connected to one end of said rotary rod (10).

3. The flange type electric butterfly valve according to claim 2, wherein a plurality of positioning blocks (15) are arranged on the inner end surface of the second flange (7), and positioning slots (16) matched with the positioning blocks (15) are arranged on the inner end surface of the first flange (6).

4. The flange type electric butterfly valve according to claim 1, wherein the buffer device (3) comprises a buffer box (31) mounted with the valve rod (2) through a lantern ring (30), a plurality of telescopic rods (32) are arranged in the buffer box (31), a buffer plate (33) is connected to the plurality of telescopic rods (32), a spring (34) is sleeved outside the telescopic rods (32), one end of the spring (34) is connected with the inner wall of the buffer box (31), the other end of the spring is connected with the buffer plate (33), the buffer plate (33) is connected with a plurality of buffer columns (35), and the buffer columns (35) penetrate through the buffer box (31) and are connected with the butterfly plate (4).

5. The flange type electric butterfly valve according to claim 4, wherein the buffer column (35) is slidably arranged with the buffer box (31) and a sealing sleeve (36) is arranged at a contact part with the buffer box (31).

6. A flange type electric butterfly valve according to any one of claims 1 to 3, wherein an annular sealing groove (17) is formed in an inner end surface of the second flange (7), and a sealing ring (18) is arranged in the annular sealing groove (17).