CN216078499U

CN216078499U - Electric butterfly valve

Info

Publication number: CN216078499U
Application number: CN202122048875.7U
Authority: CN
Inventors: 陈博伦; 何晓媚; 李葱葱
Original assignee: Shanghai Naibo Pump Valve Manufacturing Co ltd
Current assignee: Shanghai Naibo Pump Valve Manufacturing Co ltd
Priority date: 2021-08-28
Filing date: 2021-08-28
Publication date: 2022-03-18
Anticipated expiration: 2031-08-28

Abstract

The utility model discloses an electric butterfly valve which comprises a butterfly valve body and flanges arranged at two ends of the butterfly valve, wherein an annular clamping groove is formed in the surface of each flange in a machining mode, a sealing outer cover is arranged in the annular clamping groove, the sealing outer cover is of a two-section structure and is respectively an outer cover I and an outer cover II, the outer cover comprises an arc-shaped outer plate and a self-adaptive inner ring arranged in the arc-shaped outer plate, a plurality of groups of mounting ports are uniformly formed in the surface of the arc-shaped outer plate, pressing sheets are arranged in the groups of mounting ports, one ends of the pressing sheets are connected with the inner wall of the mounting ports, the other ends of the pressing sheets are free ends, the inner sides of the pressing sheets are connected with the self-adaptive inner ring, and butt plates extend from the outer end of the arc-shaped outer plate. The sealing outer cover is of a two-section structure, the sealing performance of the periphery of the joint of the flange and the pipeline can be improved on the basis of conventional installation of the pipeline, and in addition, the inner wall of the sealing outer cover is provided with the self-adaptive inner ring and the pressing sheet matched with the surface, so that the sealing performance of the sealing outer cover on the joint of the flange and the pipeline can be effectively improved.

Description

Electric butterfly valve

Technical Field

The utility model relates to the technical field of electric butterfly valves, in particular to an electric butterfly valve.

Background

Electric butterfly valve belongs to a variety in electric valve and the electric control valve, and electric butterfly valve connected mode mainly has: 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.

However, the conventional electric butterfly valve has the following problems in the use process: (1) flanges are arranged at two ends of the electric butterfly valve and are conveniently connected with a pipeline through the flanges, however, in the actual installation and use process, the water leakage phenomenon is easy to occur at the joint of the flange and the pipeline, although the existing solution is that a rubber ring is arranged at the joint, the sealing effect is poor in the long-time use process; (2) under the long water room of pipeline and electric butterfly valve junction was in high pressure state, leaded to the not hard up condition to appear in pipeline and the electric butterfly valve junction easily, influenced stability. For this reason, a corresponding technical scheme needs to be designed to solve the existing technical problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an electric butterfly valve, which solves the technical problems that flanges are arranged at two ends of the electric butterfly valve and are conveniently connected with a pipeline through the flanges, however, the water leakage phenomenon is easy to occur at the joint of the flange and the pipeline in the actual installation and use process, and although the rubber ring is arranged at the joint in the existing solution, the sealing effect is poor in the long-time use process.

In order to achieve the purpose, the utility model provides the following technical scheme: an electric butterfly valve comprises a butterfly valve body and flanges arranged at two ends of the butterfly valve, wherein the surface of the flange is processed and formed with an annular clamping groove, a sealing outer cover is arranged in the annular clamping groove, the sealing outer cover is of a two-section structure and is respectively a first outer cover and a second outer cover, the outer cover comprises an arc-shaped outer plate and a self-adaptive inner ring arranged in the arc-shaped outer plate, a plurality of groups of mounting openings are uniformly formed in the surface of the arc-shaped outer plate, pressing sheets are arranged in the plurality of groups of mounting openings, one end of the pressing sheet is connected with the inner wall of the mounting opening, the other end of the pressing sheet is a free end, the inner side of the pressing sheet is connected with the self-adaptive inner ring, the outer end of the arc-shaped outer plate extends to form a butt plate, the outer cover II and the outer cover I have the same structure, the outer ends of the outer cover II and the outer cover I are inserted with a pin bolt, bayonets are formed in the two ends of the first outer cover and the two ends of the second outer cover, and two groups of clamping pieces are arranged between the bayonets adjacent to each other on the same side.

In a preferred embodiment of the present invention, an inner edge is formed on an inner side of the arc-shaped outer plate, the adaptive inner ring is located on the inner edge, a plurality of groups of extrusion grooves are formed on a surface of the adaptive inner ring, and a rubber blade is formed between two adjacent groups of the extrusion grooves.

In a preferred embodiment of the present invention, the rubber blade located inside is formed with a columnar protrusion having a semi-cylindrical structure.

As a preferred embodiment of the present invention, the butt plate has a cambered surface structure and the outer end opening is larger than the inner end opening.

As a preferred embodiment of the present invention, the clamping piece includes a first clamping piece and a second clamping piece, the first clamping piece and the second clamping piece are disposed in the bayonet and connected at upper ends thereof, and two sets of pressing plates extend from an outer side of a connection portion of the first clamping piece and the second clamping piece.

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

1. this scheme has optimized at electric butterfly valve's structure, is provided with special sealed dustcoat in electric butterfly valve both ends flange department, and this sealed dustcoat can improve flange and pipeline connection department outlying leakproofness for two segmentation structures on the basis of the conventional installation of pipeline, and sealed dustcoat inner wall is provided with the preforming of self-adaptation inner circle and mating surface in addition, can effectual improvement sealed dustcoat to the leakproofness of flange and pipeline connection department.

2. The sealed dustcoat of this scheme design is the cover column structure of cambered surface to at both ends design there is the piece that steps up, can effectual improvement flange and the fastening degree of pipe connection department, and be convenient for carry out the dismouting.

Drawings

FIG. 1 is an overall block diagram of the present invention;

FIG. 2 is a block diagram of a ring slot according to the present invention;

FIG. 3 is a schematic view of the sealed enclosure of the present invention;

fig. 4 is a partial a structural view of the present invention.

In the figure, 1, a butterfly valve body; 2. a flange; 3. an annular neck; 4. a first outer cover; 5. a second outer cover; 6. an arc-shaped outer plate; 7. an adaptive inner ring; 8. an installation port; 9. tabletting; 10. a butt plate; 11. a pin; 12. a bayonet; 13. tightening the sheet; 14. an inner edge; 15. extruding a groove; 16. a rubber blade; 17. columnar convex strips; 18. a first clamping piece; 19. a second clamping piece; 20. and pressing the plate.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution: an electric butterfly valve comprises a butterfly valve body 1 and flanges 2 arranged at two ends of the butterfly valve body 1, wherein an annular clamping groove 3 is formed on the surface of each flange 2 in a machining mode, a sealing outer cover is arranged in each annular clamping groove 3, the sealing outer cover is of a two-section type structure and is respectively provided with a first outer cover 4 and a second outer cover 5, the first outer cover 4 comprises an arc-shaped outer plate 6 and a self-adaptive inner ring 7 arranged in the arc-shaped outer plate 6, a plurality of groups of mounting ports 8 are uniformly formed in the surface of the arc-shaped outer plate 6, pressing sheets 9 are arranged in the plurality of groups of mounting ports 8, one ends of the pressing sheets 9 are connected with the inner wall of the mounting ports 8, the other ends of the pressing sheets 9 are free ends, the inner sides of the pressing sheets 9 are connected with the self-adaptive inner ring 7, butt-joint plates 10 extend from the outer ends of the arc-shaped outer plate 6, the second outer covers 5 are identical to the structure of the first outer covers 4, pin bolts 11 are inserted into the outer ends of the first outer covers, bayonets 12 are formed at two ends of the first outer covers 4 and the second covers 5, and a tightening piece 13 is arranged between two adjacent groups of bayonets 12 on the same side.

In a further improvement, as shown in fig. 3: an inner edge 14 is formed on the inner side of the arc-shaped outer plate 6, the self-adaptive inner ring 7 is positioned on the inner edge 14, a plurality of groups of extrusion grooves 15 are formed in the surface machining mode, and rubber blades 16 are formed between every two adjacent groups of extrusion grooves 15.

In a further improvement, as shown in fig. 3: the rubber blades 16 positioned on the inner side are processed and formed with columnar convex strips 17, the columnar convex strips 17 are of a semi-cylindrical structure, and the purpose of compressing can be achieved by extruding the periphery of the pipeline through the rubber blades 16 and the columnar convex strips 17.

In a further improvement, as shown in fig. 3: the butt-joint plate 10 is of a cambered surface structure, and the outer end opening is larger than the inner end opening, so that the end part of the pipeline can be clamped into the inner side of the butt-joint plate 10 conveniently.

Specifically, the clamping piece 13 comprises a first clamping piece 18 and a second clamping piece 19, the first clamping piece 18 and the second clamping piece 19 are arranged in the bayonet 12, the upper ends of the first clamping piece 18 and the second clamping piece 19 are connected, two groups of pressure applying plates 20 extend from the outer side of the joint of the first clamping piece 18 and the second clamping piece 19, and the purpose of clamping the joint of the two ends of the first outer cover 4 and the second outer cover 5 can be achieved through the first clamping piece 18 and the second clamping piece 19.

When in use: according to the utility model, a pipeline and a flange 2 are butted and fixed in a conventional manner, then a first outer cover 4 and a second outer cover 5 are combined between bayonets 12 and are inserted with tightening pieces 13 for tightening and fixing, when the pipeline is in a transfusion state, the pipeline expands and is squeezed and sealed with a self-adaptive inner ring 7, and meanwhile, a butt joint plate 10 is tightly contacted with the periphery of the pipeline, so that the aim of sealing the joint of the flange 2 and the pipeline is achieved.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the utility model. Any modification, equivalent replacement, or improvement 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 an electric butterfly valve, includes butterfly valve body (1) and installs flange (2) at butterfly valve body (1) both ends, its characterized in that: the surface of the flange (2) is processed and formed to be provided with an annular clamping groove (3), a sealing outer cover is arranged in the annular clamping groove (3), the sealing outer cover is of a two-section structure and is respectively provided with an outer cover I (4) and an outer cover II (5), the outer cover I (4) comprises an arc outer plate (6) and a self-adaptive inner ring (7) arranged in the arc outer plate (6), a plurality of groups of mounting ports (8) are uniformly formed in the surface of the arc outer plate (6), pressing sheets (9) are arranged in the mounting ports (8), one end of each pressing sheet (9) is connected with the inner wall of each mounting port (8), the other end of each pressing sheet is a free end, the inner side of each pressing sheet (9) is connected with the self-adaptive inner ring (7), a butt joint plate (10) extends from the outer end of the arc outer plate (6), the outer cover II (5) is identical to the structure of the outer cover I (4), and a pin bolt (11) penetrates through the outer ends of the outer cover II and the outer cover I (4), bayonets (12) have all been seted up at the both ends of dustcoat one (4) and dustcoat two (5), and the homonymy is adjacent two sets of bayonet socket (12) are provided with between the piece of tightening (13).

2. An electric butterfly valve according to claim 1, characterized in that: the inner side of the arc-shaped outer plate (6) is provided with an inner edge (14), the self-adaptive inner ring (7) is positioned on the inner edge (14), a plurality of groups of extrusion grooves (15) are formed in the surface machining mode, and rubber blades (16) are formed between every two adjacent groups of extrusion grooves (15).

3. An electric butterfly valve according to claim 2, characterized in that: be located the inboard processing shaping has cylindrical sand grip (17) on rubber blade (16), cylindrical sand grip (17) are half-cylinder structure.

4. An electric butterfly valve according to claim 1, characterized in that: the butt joint plate (10) is of a cambered surface structure, and an outer end opening is larger than an inner end opening.

5. An electric butterfly valve according to claim 1, characterized in that: the clamping piece (13) comprises a first clamping piece (18) and a second clamping piece (19), the first clamping piece (18) and the second clamping piece (19) are arranged in the bayonet (12) in a built-in mode, the upper ends of the first clamping piece (18) and the second clamping piece (19) are connected, and two groups of pressure applying plates (20) extend out of the connecting position of the first clamping piece (18) and the second clamping piece (19).