CN212690853U

CN212690853U - Magnetic sealing pneumatic butterfly valve

Info

Publication number: CN212690853U
Application number: CN202021654719.4U
Authority: CN
Inventors: 梁金灿; 黄振强
Original assignee: Fujian Hongjie Valve Co ltd
Current assignee: Fujian Hongjie Valve Co ltd
Priority date: 2020-08-11
Filing date: 2020-08-11
Publication date: 2021-03-12
Anticipated expiration: 2030-08-11

Abstract

The utility model discloses a magnetic seal pneumatic butterfly valve, the structure of which comprises a valve body, a connecting pipe, an inner gasket, an outer gasket, an external thread, a valve cover, a valve rod, a first airtight assembly, a pneumatic actuator, a butterfly plate, a second airtight assembly, a valve seat and a laminating device, the left end and the right end of the valve body are symmetrically provided with the connecting pipe, the valve body and the connecting pipe are integrally formed, the inner gasket is fixedly connected with the inner wall of the connecting pipe, the outer gasket is fixedly connected with the outer side of the connecting pipe, the external thread is arranged on the outer surface of the connecting pipe, and the top end of the valve body is fixedly connected with the valve cover; and the inner and outer double-fixing and pressing components are adopted to improve the using stability and the sealing performance.

Description

Magnetic sealing pneumatic butterfly valve

Technical Field

The utility model belongs to the technical field of the valve, in particular to magnetic seal's pneumatic type butterfly valve.

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 butterfly valve, wherein a closing part (a valve clack or a butterfly plate) is a disc, and the butterfly valve is a valve which uses a disc type opening and closing part to rotate back and forth by about 90 degrees to open, close or regulate the flow of media;

the pneumatic butterfly valve is mainly used as a cut-off valve and can also be designed to have the function of regulating or regulating a section valve, and the butterfly valve is increasingly used on low-pressure large-and medium-caliber pipelines;

however, the sealing effect of the butterfly valve in the prior art is not good when the butterfly valve is closed; and is not stable and airtight when installed and used.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

In order to overcome the defects of the prior art, a magnetic sealing pneumatic butterfly valve is provided so as to solve the problem that the sealing effect is poor when the butterfly valve is closed; and the problem that the stability and the sealing performance are not enough when installing and using, through adding establish magnetism and compress tightly the beneficial effect of part in order to improve the leakproofness when closing each other to adopt inside and outside two solid with compress tightly the beneficial effect of part in order to improve the stability and the sealing performance of use.

(II) technical scheme

The utility model discloses a following technical scheme realizes: the utility model provides a magnetic sealing pneumatic butterfly valve, which comprises a valve body, a connecting pipe, an inner gasket, an outer gasket, an external thread, a valve cover, a valve rod, a first sealing component, a pneumatic actuator, a butterfly plate, a second sealing component, a valve seat and a laminating device, wherein the connecting pipe is symmetrically arranged at the left end and the right end of the valve body, the valve body and the connecting pipe are integrally formed, the inner gasket is fixedly connected with the inner wall of the connecting pipe, the outer gasket is fixedly connected with the outer side of the connecting pipe, the external thread is arranged at the outer side of the outer surface of the connecting pipe, the top end of the valve body is fixedly connected with the valve cover, the middle parts of the two ends of the top bottom of the valve cover are penetrated through the valve rod, the valve cover is movably connected with the valve rod, the first sealing component is arranged between the inner part of the valve body and, the butterfly plate bottom imbeds valve body inner wall bottom middle part, valve body inner wall bottom middle part rigid coupling has the airtight subassembly of second to the valve body rotates with the butterfly plate through the airtight subassembly of second to be connected, valve body bottom middle part rigid coupling has the disk seat, the rigid coupling has the laminating device respectively between both ends and the butterfly plate outside around the valve body inner wall, and the valve body passes through laminating device and butterfly plate swing joint.

Further, the laminating device includes magnetic ring, surface course, scarce groove, recess, bulge loop and gomphosis ring, the surface course has been fixed to the magnetic ring surface, both ends symmetry rigid coupling has the bulge loop around the butterfly plate, the bulge loop outside is provided with the gomphosis ring to bulge loop and gomphosis ring integrated into one piece, one side that the surface course surface is close to the bulge loop is provided with scarce groove to lack inslot inner wall inboard and be provided with the recess, scarce inslot inner wall and bulge loop swing joint, the recess inner wall pastes tightly each other with gomphosis ring surface, both ends respectively with magnetic ring fixed connection around the valve body inner wall.

Furthermore, the magnetic rings are provided with two groups which are symmetrically distributed at the front end and the rear end of the inner wall of the valve body.

Further, the outer surface of the convex ring is smooth.

Furthermore, the outer side of the inner wall of the connecting pipe is provided with internal threads.

Further, the inner washer is arranged on the inner side of the internal thread.

Furthermore, the butterfly plate, the convex ring and the embedded ring are all made of magnetic metal.

Furthermore, the inner gasket, the outer gasket and the surface layer are all made of rubber.

(III) advantageous effects

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

1) the not good problem of airtight effect when closing for solving this butterfly valve, through set up the laminating device around the valve body inner wall between both ends and the butterfly plate, through the magnetism between magnetic ring and the bulge loop effect of inhaling mutually to provide preliminary seal, and the bulge loop is through compressing tightly the surface course in the middle of the scarce inslot wall activity, the embedded ring compresses tightly in the middle of the recess, provide airtight effect once more, reached through adding establish magnetism and compress tightly the beneficial effect of seal when the part closes in order to improve.

2) The problem that the stability and the seal performance are not enough when solving and installing the use is through setting up the inner washer and setting up the outer washer in the takeover outside at the takeover inner wall, provide inside and outside effect that compresses tightly, and the internal thread that the takeover inner wall outside set up, the external screw thread in the takeover surface outside provides the two solid effects when connecting, has reached and has adopted inside and outside two solid and compress tightly the part in order to improve the firm and seal performance's of use beneficial effect.

Drawings

Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:

fig. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic front view of the cross-sectional structure of the present invention;

fig. 3 is a schematic top view of the cross-sectional structure of the present invention;

fig. 4 is a schematic view of a top view cross-section partial structure a of the present invention;

in the figure: the valve comprises a valve body-1, a connecting pipe-2, an inner gasket-3, an outer gasket-4, external threads-5, a valve cover-6, a valve rod-7, a first sealing component-8, a pneumatic actuator-9, a butterfly plate-10, a second sealing component-11, a valve seat-12, a gluing device-13, a magnetic ring-131, a surface layer-132, a notch-133, a groove-134, a convex ring-135 and a chimeric ring-136.

Detailed Description

Referring to fig. 1, fig. 2, fig. 3 and fig. 4, the present invention provides a magnetically sealed pneumatic butterfly valve: the valve comprises a valve body, a connecting pipe, an inner gasket, an outer gasket, an external thread, a valve cover, a valve rod, a first sealing assembly, a pneumatic actuator, a butterfly plate, a second sealing assembly, a valve seat and a laminating device, wherein the connecting pipe is symmetrically arranged at the left end and the right end of the valve body, the valve body and the connecting pipe are integrally formed, the inner gasket is fixedly connected to the inner wall of the connecting pipe, the outer gasket is fixedly connected to the outer side of the connecting pipe, the external thread is arranged on the outer side of the outer surface of the connecting pipe, the top end of the valve body is fixedly connected with the valve cover, the middle parts of the two ends of the top bottom of the valve cover are penetrated through the valve rod, the valve cover is movably connected with the valve rod, the first sealing assembly is arranged between the inner part of the valve body and the valve rod, the valve rod, the valve body is characterized in that a second airtight assembly is fixedly connected to the middle of the bottom end of the inner wall of the valve body, the valve body is rotatably connected with the butterfly plate through the second airtight assembly, a valve seat is fixedly connected to the middle of the bottom end of the valve body, a laminating device is fixedly connected between the front end and the rear end of the inner wall of the valve body and the outer side of the butterfly plate respectively, and the valve body is movably connected with the butterfly plate through the laminating device.

The attaching device 13 includes a magnetic ring 131, a surface layer 132, a notch 133, a groove 134, a protruding ring 135 and an embedding ring 136, the surface layer 132 is fixedly connected to the outer surface of the magnetic ring 131, the protruding rings 135 are symmetrically and fixedly connected to the front and rear ends of the butterfly plate 10, the embedding ring 136 is arranged on the outer side of the protruding ring 135, the protruding ring 135 and the embedding ring 136 are integrally formed, the notch 133 is arranged on one side of the outer surface of the surface layer 132 close to the protruding ring 135, the groove 134 is arranged on the inner side of the inner wall of the notch 133, the inner wall of the notch 133 is movably connected to the protruding ring 135, the inner wall of the groove 134 and the outer surface of the embedding ring 136 are attached to each other, the front and rear ends of the inner wall of the valve body 1 are fixedly connected to the magnetic ring 131, and the magnetic and.

The magnetic rings 131 are arranged in two groups and symmetrically distributed at the front end and the rear end of the inner wall of the valve body 1, and the fitting precision is improved according to the reasonable arrangement position.

Wherein, the outer surface of the convex ring 135 is smooth, and the service life is prolonged according to the reduction of the contact friction force.

Wherein, the 2 inner wall outsides of takeover are provided with the internal thread, establish the part of fixing according to the aforesaid interpolation, improve the steadiness.

The inner gasket 3 is arranged on the inner side of the internal thread, and a compressed airtight effect is formed according to the reasonable arrangement position.

The butterfly plate 10, the convex ring 135 and the embedding ring 136 are made of magnetic metal.

The inner gasket 3, the outer gasket 4 and the surface layer 132 are all made of rubber and are wear-resistant.

The working principle is as follows: firstly, taking out the magnetically sealed pneumatic butterfly valve and placing the valve at a position for use;

then, the external thread 5 and the internal thread of the connecting pipe 2 are connected through the external connecting pipe, meanwhile, the internal gasket 3 is arranged on the inner wall of the connecting pipe 2, the external gasket 4 is arranged on the outer side of the connecting pipe 2, so that the internal and external compression effects are provided, the internal thread arranged on the outer side of the inner wall of the connecting pipe 2, and the external thread 5 on the outer side of the outer surface of the connecting pipe 2 provide the double-fixing effect during connection, and the beneficial effects that the internal and external double-fixing and compression parts are adopted to improve the use stability and the sealing performance;

then, according to the above, after the installation and use, the pneumatic actuator 9 is connected with electricity, and controls the valve rod 7 to rotate clockwise, and simultaneously drives the butterfly plate 10 to rotate, so as to open the inside of the valve body 1 and communicate through the connecting pipes 2 at the left and right ends of the valve body 1, and the first sealing component 8 between the valve rod 7 and the valve cover 6 and the second sealing component 11 between the top end of the valve seat 12 and the valve body 1 provide the rotary sealing effect of the butterfly plate 10;

finally, after using the completion, butterfly plate 10 resets, at this moment, through laminating device 13 that sets up between both ends and butterfly plate 10 around the valve body 1 inner wall, through the magnetism between magnetic ring 131 and the bulge loop 135 effect of attracting mutually, in order to provide preliminary leakproofness, bulge loop 135 is through compressing tightly surface course 132 in the middle of scarce groove 133 inner wall activity, the bulge loop 136 compresses tightly in the middle of recess 134, provide airtight effect once more, reached through adding establish magnetism and compress tightly the beneficial effect of leakproofness when improving to close with each other the part.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above, it will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, but that the invention may be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The utility model provides a magnetism sealed pneumatic type butterfly valve which characterized in that: comprises a valve body (1), a connecting pipe (2), an inner gasket (3), an outer gasket (4), external threads (5), a valve cover (6), a valve rod (7), a first airtight assembly (8), a pneumatic actuator (9), a butterfly plate (10), a second airtight assembly (11), a valve seat (12) and a laminating device (13), wherein the connecting pipe (2) is symmetrically arranged at the left end and the right end of the valve body (1), the valve body (1) and the connecting pipe (2) are integrally formed, the inner gasket (3) is fixedly connected to the inner wall of the connecting pipe (2), the outer gasket (4) is fixedly connected to the outer side of the connecting pipe (2), the external threads (5) are arranged on the outer surface of the connecting pipe (2), the top end of the valve body (1) is fixedly connected with the valve cover (6), the middle parts of the two ends of the top and the bottom of the valve cover (6) are, a first sealing component (8) is arranged between the interior of the valve body (1) and the valve rod (7), and the valve rod (7) is rotationally connected with the valve body (1) through a first sealing component (8), the top end of the valve rod (7) is fixedly connected with the pneumatic actuator (9), the bottom end of the valve rod (7) is fixedly inserted with the butterfly plate (10), the bottom end of the butterfly plate (10) is embedded into the middle of the bottom end of the inner wall of the valve body (1), a second sealing component (11) is fixedly connected to the middle of the bottom end of the inner wall of the valve body (1), and the valve body (1) is rotatably connected with the butterfly plate (10) through a second sealing component (11), a valve seat (12) is fixedly connected with the middle part of the bottom end of the valve body (1), a jointing device (13) is respectively and fixedly connected between the front end and the rear end of the inner wall of the valve body (1) and the outer side of the butterfly plate (10), and the valve body (1) is movably connected with the butterfly plate (10) through a jointing device (13).

2. The magnetically sealed pneumatic butterfly valve of claim 1, wherein: laminating device (13) are including magnetic ring (131), surface course (132), scarce groove (133), recess (134), bulge loop (135) and gomphosis ring (136), magnetic ring (131) surface rigid coupling has surface course (132), both ends symmetry rigid coupling has bulge loop (135) around butterfly board (10), the bulge loop (135) outside is provided with gomphosis ring (136) to bulge loop (135) and gomphosis ring (136) integrated into one piece, one side that surface course (132) surface is close to bulge loop (135) is provided with scarce groove (133) to lack groove (133) inner wall inboard is provided with recess (134), lack groove (133) inner wall and bulge loop (135) swing joint, recess (134) inner wall and gomphosis ring (136) surface are pasted tightly each other, valve body (1) inner wall front and back both ends respectively with magnetic ring (131) fixed connection.

3. A magnetically sealed pneumatic butterfly valve according to claim 2, wherein: the magnetic rings (131) are arranged in two groups and are symmetrically distributed at the front end and the rear end of the inner wall of the valve body (1).

4. A magnetically sealed pneumatic butterfly valve according to claim 2, wherein: the outer surface of the convex ring (135) is smooth.

5. The magnetically sealed pneumatic butterfly valve of claim 1, wherein: the outer side of the inner wall of the connecting pipe (2) is provided with internal threads.

6. The magnetically sealed pneumatic butterfly valve of claim 1, wherein: the inner gasket (3) is arranged on the inner side of the internal thread.