CN205504008U - Cambered surface valve clack formula butterfly valve - Google Patents
Cambered surface valve clack formula butterfly valve Download PDFInfo
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- CN205504008U CN205504008U CN201620247241.0U CN201620247241U CN205504008U CN 205504008 U CN205504008 U CN 205504008U CN 201620247241 U CN201620247241 U CN 201620247241U CN 205504008 U CN205504008 U CN 205504008U
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Abstract
The utility model relates to a pipe -line transportation field especially relates to a choke valve. A cambered surface valve clack formula butterfly valve, includes drive mechanism, valve body assembly and spool assembly, drive mechanism installs on valve body assembly, spool assembly installs in valve body assembly, and valve rod among the drive mechanism drives the switching that valve clack action among the spool assembly realized the valve, spool assembly includes valve clack, disk seat and valve plate, the valve plate compresses tightly the valve clack through the bolt and fixes on the valve rod, the valve clack is the flat board of intercepting from a spheroid, requires dull and stereotyped center and the coincidence of the spheroidal centre of sphere when the intercepting, be provided with on the disk seat with valve clack spherical outside surface matched with in the concave spherical surface, the interior concave spherical surface bilateral symmetry of disk seat is provided with a pair of seal groove, be provided with the sealing washer in the seal groove. The utility model discloses its volume of having the change is little, the reliable and stable characteristics of cooperation, and two end face seal ring have enlarged the sealed face of valve clack, have very high airtight effect.
Description
Technical field
This utility model relates to pipeline transportation art, particularly relates to a kind of choke valve.
Background technology
Metallurgy, chemical industry, light industry and machinery factory in process of production, need various medium to complete the conveying necessary resources especially of the PROCESS FOR TREATMENT to product, particularly aqueous medium, and install on the pipeline of water channel conveying is butterfly valve mostly.A common recognition is had, that is, butterfly valve can occur not dead phenomenon more or less often between actually used person.It is again that maintainer is taken pipe flange apart, caused a large amount of water flow jet it also occur that close due to original butterfly valve and lost efficacy; the accident of steel-making compressor emergency shutdown; the motor device being also possible to make to be arranged in underpass is not had by water logging, brings disaster to adjacent unit and stops production, causes the problem that maintenance cost expands.
Existing butterfly valve structure is as shown in Figure 1, limited by structure, it is the most dead that butterfly valve can rotate to pass when 90 degree, the phenomenon can opened when rotary closing crosses 90 degree again, scene needs cut-out cut-off carry out filter, condenser, pipeline, pump maintenance and all causes difficulty, and medium is not because closing, but be also to maintenance, can only keep in repair on leakage limit, limit, cause mass energy medium to waste.To miss the medium of more than ten ten thousand yuan every year.Cause spare part and media resource waste, make enterprise operation cost, spare part expense, maintenance cost improve and also lavish labor on resource.
Summary of the invention
Technical problem to be solved in the utility model is to provide a kind of cambered surface clack type butterfly valve, this butterfly valve utilizes outer recessed two the cambered surface ring coupling forms of convex of spherical arc as the flap of butterfly valve and valve seat, it has, and variable quantity is little, coordinate reliable and stable feature, even if the flap of sphere is crossed to rotate to an angle and also will not be revealed, fault-tolerance is strong, there is the highest obturation effect, be the reliability deficiency efficiently solving the long-acting closedown of former butterfly valve, the problem more relatively low than the life-span of other kind valve.
This utility model is achieved in that a kind of cambered surface clack type butterfly valve, including drive mechanism, valve body assembly and Spool assembly, described drive mechanism is arranged on valve body assembly, described Spool assembly is arranged in valve body assembly, valve rod in drive mechanism drives the flap action in Spool assembly to realize the opening and closing of valve, described Spool assembly includes flap, valve seat and valve plate, flap is pressed abd fixed on valve rod by described valve plate by bolt, described flap is the flat board intercepted from a spheroid, require that when intercepting the center of flat board overlaps with the centre of sphere of spheroid, the interior concave spherical surface matched with flap spherical outside surface it is provided with on described valve seat, the interior concave spherical surface lateral symmetry of described valve seat is provided with a pair seal groove, it is provided with sealing ring in described seal groove.
The both sides of described flap offer a pair lightening grooves so that the cross section of flap becomes sired results font.
Described drive mechanism includes valve rod, worm gear case, handwheel, worm screw and link, described valve rod one end is connected with worm gear in worm gear case, the other end of valve rod is connected with Spool assembly in extending into valve body assembly through link, described worm gear case is fixedly mounted on valve body assembly by link, worm wheel in described worm and wheel case, described handwheel drives worm screw to rotate, and is connected by gland and packing between valve rod with link.
Described valve body assembly includes that valve seat body, the bottom of described valve seat body are provided with valve rod base, and described valve rod is arranged on valve rod base, is provided with lining between valve rod and valve rod base, and the two ends of valve body assembly are provided with runner flange.
This utility model cambered surface clack type butterfly valve utilizes outer recessed two the cambered surface ring coupling forms of convex of spherical arc as the flap of butterfly valve and valve seat, and it has, and variable quantity is little, coordinate reliable and stable feature, and the flap of I-shaped structure has reached to alleviate the purpose of weight；The double seals widening of the ring sealing surface of flap, even if the flap of sphere is crossed to rotate to an angle and also will not be revealed, fault-tolerance is strong, there is the highest obturation effect, it is the fit form that flap is the highest with the airtight reliability of valve seat and life-span degree, long-acting Guan Bi can be realized, saved with water, and reduce the repair time, improve production efficiency.
Accompanying drawing explanation
Fig. 1 is existing butterfly valve structure schematic diagram；
Fig. 2 is the schematic cross-section of this utility model cambered surface clack type butterfly valve；
Fig. 3 is the Spool assembly top plan view of this utility model cambered surface clack type butterfly valve.
In figure: 11 valve rods, 12 worm gear cases, 13 handwheels, 14 worm screws, 15 links, 16 glands, 17 packings, 21 valve seat bodies, 22 valve rod bases, 23 linings, 24 runner flanges, 31 flaps, 32 valve seats, 33 valve plates, 34 bolts, 35 seal grooves, 36 sealing rings, 37 lightening grooves.
Detailed description of the invention
Below in conjunction with specific embodiment, this utility model is expanded on further.Should be understood that these embodiments are merely to illustrate this utility model rather than limit scope of the present utility model.In addition, it is to be understood that after having read the content of this utility model statement, this utility model can be made various changes or modifications by those skilled in the art, and these equivalent form of values fall within the application appended claims limited range equally.
Embodiment 1
nullSuch as Fig. 2、Shown in 3，A kind of cambered surface clack type butterfly valve，Including drive mechanism、Valve body assembly and Spool assembly，Described drive mechanism is arranged on valve body assembly，Described Spool assembly is arranged in valve body assembly，Valve rod 11 in drive mechanism drives flap 31 action in Spool assembly to realize the opening and closing of valve，Described Spool assembly includes flap 31、Valve seat 32 and valve plate 33，Flap 31 is pressed abd fixed on valve rod 11 by described valve plate 33 by bolt 34，Described flap 31 is the flat board intercepted from a spheroid，Require that when intercepting the center of flat board overlaps with the centre of sphere of spheroid，The interior concave spherical surface matched with flap 31 spherical outside surface it is provided with on described valve seat 32，The interior concave spherical surface lateral symmetry of described valve seat 32 is provided with a pair seal groove 35，It is provided with sealing ring 36 in described seal groove 35，Sealing ring 36 is annular，Its section is rectangle，Time in embedding sealing groove 35, Elastic penetration is 10%-20%，A pair sealing ring 36 forms the two seals band of flap 31 and valve seat 32，This Stability Analysis of Structures、Deform little、Ensure and close reliability.
When processing flap 31 usual time remove spheroid upper cover, lower base portion, intercept the flap utilizing spheroid interlude to obtain annular sphere；In the present embodiment, in order to lower the weight of flap 31, improving the handling of spool, the both sides of described flap 31 offer a pair lightening grooves 37 so that the cross section of flap 31 becomes sired results font；The form of this butterfly valve rotary screw Open valve is that flap shaft core is scheduled on center, and flap rotates valve seat, until reaching 90 degree is standard-sized sheet, reversely rotates, flap is proceeded to valve seat, it is achieved effectively closed, leakage problem will not occur during closedown.
This utility model can be further depicted as, described drive mechanism includes valve rod 11, worm gear case 12, handwheel 13, worm screw 14 and link 15, described valve rod 11 one end is connected with worm gear in worm gear case 12, between the two by key transmission, the other end of valve rod 11 is connected with Spool assembly in extending into valve body assembly through link 15, described worm gear case 12 is fixedly mounted on valve body assembly by link 15, described worm screw 14 and the worm wheel in worm gear case 12, described handwheel 13 drives worm screw 14 to rotate, it is connected by gland 16 and packing 17 between valve rod 11 with link 15, it is that packing 17 prevents from revealing as being compressed by gland 16 in filler embedded groove.
This utility model can be further depicted as, described valve body assembly includes that valve seat body 21, the bottom of described valve seat body 21 are provided with valve rod base 22, and described valve rod 11 is arranged on valve rod base 22, being provided with lining 23 between valve rod 11 and valve rod base 22, the two ends of valve body assembly are provided with runner flange 24.
Claims (4)
- null1. a cambered surface clack type butterfly valve，Including drive mechanism、Valve body assembly and Spool assembly，Described drive mechanism is arranged on valve body assembly，Described Spool assembly is arranged in valve body assembly，Valve rod (11) in drive mechanism drives flap (31) action in Spool assembly to realize the opening and closing of valve，It is characterized in that: described Spool assembly includes flap (31)、Valve seat (32) and valve plate (33)，Flap (31) is pressed abd fixed on valve rod (11) by described valve plate (33) by bolt (34)，Described flap (31) is the flat board intercepted from a spheroid，Require that when intercepting the center of flat board overlaps with the centre of sphere of spheroid，The interior concave spherical surface matched with flap (31) spherical outside surface it is provided with on described valve seat (32)，The interior concave spherical surface lateral symmetry of described valve seat (32) is provided with a pair seal groove (35)，Sealing ring (36) it is provided with in described seal groove (35).
- 2. cambered surface clack type butterfly valve as claimed in claim 1, is characterized in that: the both sides of described flap (31) offer a pair lightening grooves (37) so that the cross section of flap (31) becomes sired results font.
- 3. cambered surface clack type butterfly valve as claimed in claim 1 or 2, it is characterized in that: described drive mechanism includes valve rod (11), worm gear case (12), handwheel (13), worm screw (14) and link (15), described valve rod (11) one end is connected with worm gear case (12) interior worm gear, the other end of valve rod (11) is connected with Spool assembly in extending into valve body assembly through link (15), described worm gear case (12) is fixedly mounted on valve body assembly by link (15), described worm screw (14) and the worm wheel in worm gear case (12), described handwheel (13) drives worm screw (14) to rotate, it is connected by gland (16) and packing (17) between valve rod (11) with link (15).
- 4. cambered surface clack type butterfly valve as claimed in claim 1 or 2, it is characterized in that: described valve body assembly includes valve seat body (21), the bottom of described valve seat body (21) is provided with valve rod base (22), described valve rod (11) is arranged on valve rod base (22), being provided with lining (23) between valve rod (11) and valve rod base (22), the two ends of valve body assembly are provided with runner flange (24).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620247241.0U CN205504008U (en) | 2016-03-29 | 2016-03-29 | Cambered surface valve clack formula butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620247241.0U CN205504008U (en) | 2016-03-29 | 2016-03-29 | Cambered surface valve clack formula butterfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205504008U true CN205504008U (en) | 2016-08-24 |
Family
ID=56735322
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620247241.0U Active CN205504008U (en) | 2016-03-29 | 2016-03-29 | Cambered surface valve clack formula butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205504008U (en) |
-
2016
- 2016-03-29 CN CN201620247241.0U patent/CN205504008U/en active Active
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |