CN207261238U - A kind of double-crank butterfly control valve for water pump - Google Patents
A kind of double-crank butterfly control valve for water pump Download PDFInfo
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- CN207261238U CN207261238U CN201720946488.6U CN201720946488U CN207261238U CN 207261238 U CN207261238 U CN 207261238U CN 201720946488 U CN201720946488 U CN 201720946488U CN 207261238 U CN207261238 U CN 207261238U
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- pass line
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Abstract
The utility model discloses a kind of double-crank butterfly control valve for water pump, including outlet by-pass line, index combustion fan, diaphragm lid, diaphragm, locking nut, diaphragm pressing plate, the second bolt, diaphragm seat, the first bolt, inlet adjusting valve, import by-pass line, control-rod, valve body, axis pin, valve shaft, small valve plate, double-crank and eccentric big valve plate, the outer of the diaphragm is connected fixation with diaphragm lid and diaphragm seat by the second bolt, and the upper end of the control-rod passes through the centre bore of diaphragm and diaphragm pressing plate and connects fixation by locking nut；Control-rod lower end is connected by axis pin with double-crank；One end of double-crank is hung on valve shaft by annulus, and the lower part of double-crank is welded with small valve plate.The problem of structure setting of the present apparatus, solves existing butterfly control valve for water pump and use single handle structure, and due to being controlled the limitation of valve diameter, crank thickness is smaller, crank and the axis pin being attached thereto easy to wear, extends control valve service life.
Description
Technical field
Control valve technical field is the utility model is related to, is specifically a kind of double-crank butterfly control valve for water pump.
Background technology
Existing butterfly control valve for water pump uses single handle structure, due to being controlled the limitation of shank diameter, crank thickness ratio
Smaller, crank and the axis pin being attached thereto are easy to wear, and service life is short.In order to solve the problems, such as this, the present utility model
The butterfly control valve for water pump of hyperbolic handle structure.
The content of the invention
The purpose of this utility model is to provide a kind of double-crank butterfly control valve for water pump, to solve in above-mentioned background technology
The problem of proposition.
To achieve the above object, the utility model provides following technical solution：
A kind of double-crank butterfly control valve for water pump, including outlet by-pass line, index combustion fan, diaphragm lid, diaphragm, locking
Nut, diaphragm pressing plate, the second bolt, diaphragm seat, the first bolt, inlet adjusting valve, import by-pass line, control-rod, valve body, pin
Axis, valve shaft, small valve plate, double-crank and eccentric big valve plate, the lower end of the outlet by-pass line are connected with the port of export of valve body, institute
State diaphragm seat and be bolted fixation by first with valve body, be provided between diaphragm lid and diaphragm seat under diaphragm epicoele and diaphragm
Chamber, outlet by-pass line upper end are connected with diaphragm epicoele, export and index combustion fan is equipped among by-pass line, outside the diaphragm
Fixation is connected with diaphragm lid and diaphragm seat along by the second bolt, the upper end of the control-rod is passed through in diaphragm and diaphragm pressing plate
Heart hole simultaneously connects fixation by locking nut；Control-rod stage casing passes through diaphragm seat, and control-rod lower end is connected by axis pin and double-crank
Connect；Sliding slot is provided with the double-crank, the axis pin is arranged in the sliding slot of double-crank, and one end of double-crank is hanged by annulus
It is hung on valve shaft, the lower part of double-crank is welded with small valve plate, and import by-pass line lower end is connected with the input end of valve body, by import
Upper end of threading a pipe is connected with diaphragm cavity of resorption, and inlet adjusting valve is equipped among import by-pass line；The eccentric big valve plate is equipped with
Two axle sleeves, eccentric big valve plate are hung on valve shaft by two axle sleeves, and eccentric big valve plate is cylindrical to be kissed with the valve seat endoporus of valve body
Conjunction forms cone seal pair, and the valve shaft passes through the bearing of valve body on both sides of the middle.
Compared with prior art, the beneficial effects of the utility model are：The structure setting of the present apparatus, solves existing butterfly
Control valve for water pump uses single handle structure, and due to being controlled the limitation of valve diameter, crank thickness is smaller, crank and connects therewith
The problem of axis pin connect is easy to wear, it is short to extend control valve service life.
Brief description of the drawings
Fig. 1 is the structure diagram of the utility model.
Fig. 2 is the partial sectional view of Fig. 1.
Fig. 3 is the structure diagram under present apparatus full off state.
Fig. 4 is the structure diagram under present apparatus full-gear.
Fig. 5 is the structure diagram under the fast off status of the present apparatus.
Fig. 6 is the structure diagram under present apparatus Slow Close state.
Embodiment
The following is a combination of the drawings in the embodiments of the present utility model, and the technical scheme in the embodiment of the utility model is carried out
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are without making creative work
All other embodiments obtained, shall fall within the protection scope of the present invention.
Please refer to Fig.1~6, in the utility model embodiment, a kind of double-crank butterfly control valve for water pump, including outlet bypass
Pipeline 1, index combustion fan 2, diaphragm lid 3, diaphragm 4, locking nut 6, diaphragm pressing plate 7, the second bolt 9, diaphragm seat 10, the first spiral shell
Bolt 12, inlet adjusting valve 13, import by-pass line 14, control-rod 15, valve body 16, axis pin 17, valve shaft 20, small valve plate 21, hyperbolic
Handle 22 and eccentric big valve plate 24, the lower end that the port of export 1 is threaded a pipe are connected with the port of export of valve body, the diaphragm seat 10 and valve
Body 16 is connected by the first bolt 12 and fixed, and diaphragm epicoele 5 and diaphragm cavity of resorption 8 are provided between diaphragm lid 3 and diaphragm seat 10, is gone out
1 upper end of mouth by-pass line is connected with diaphragm epicoele, exports and index combustion fan 2 is equipped among by-pass line 1, outside the diaphragm 4
Along fixation is connected with diaphragm lid 3 and diaphragm seat 10 by the second bolt 9, the upper end of the control-rod 15 passes through diaphragm 4 and diaphragm
The centre bore of pressing plate 7 simultaneously connects fixation by locking nut 6；15 stage casing of control-rod passes through diaphragm seat 10, and 15 lower end of control-rod leads to
Axis pin 17 is crossed to be connected with double-crank 22；Sliding slot 18 is provided with the double-crank 22, the axis pin 17 is arranged on double-crank 22
In sliding slot 18, one end of double-crank 22 is hung on valve shaft 20 by annulus 19, and the lower part of double-crank 22 is welded with small valve plate 21,
14 lower end of import by-pass line is connected with the input end of valve body 16, and 14 upper end of import by-pass line is connected with diaphragm cavity of resorption 8, import
Inlet adjusting valve 13 is equipped among by-pass line 14；The eccentric big valve plate 24 is equipped with two axle sleeves 26, eccentric big valve plate 24
Hung on by two axle sleeves 26 on valve shaft 20, the eccentric big cylindrical valve seat endoporus with valve body 16 of valve plate 24 coincide, and to form circular cone close
Envelope pair 25, the valve shaft 20 passes through the bearing 27 of 16 on both sides of the middle of valve body.
The structure setting of the present apparatus, solves existing butterfly control valve for water pump and uses single handle structure, due to being controlled
The problem of limitation of shank diameter, crank thickness is smaller, crank and the axis pin being attached thereto easy to wear, extending control valve makes
Use short life.
Valve opening：During valve nature, it is closed, referring to Fig. 3；Work as starting mode of pump, valve inlet pressure P1 by
Edge up high and when exceeding valve export end pressure P2, shallow bid current along import by-pass line 14, by inlet adjusting valve 13 into
Enter diaphragm cavity of resorption 8, promote diaphragm 4 and diaphragm pressing plate 7 to move upwards, drive double-crank 22 and small valve plate 21 suitable by control-rod 15
Clockwise rotates, and releases compacting of the small valve plate 21 to eccentric big valve plate 24.Eccentric big valve plate 24 is in the big stock water of input end
Under the promotion of stream, small valve plate 21 is followed closely together rotationally clockwise, valve is slowly opened.Meanwhile the current edge of diaphragm epicoele 5
Outlet by-pass line 1, the port of export of valve body 16 is flowed to after index combustion fan 2.Diaphragm is adjusted by index combustion fan 2
Drainage speed in epicoele 5, so as to the opening speed of control valve.Referring to Fig. 4.
Close valve：Close valve and be divided into two stages of quick closing valve and Slow Close.Quick closing valve：During water pump termination of pumping, valve inlet end pressure P1 is rapid
Reduce, when water velocity is close to " 0 ", eccentric big valve plate 24 is under the action of eccentric gravitational moment and recirculation water, quickly
Close.Referring to Fig. 5.
Slow Close：After eccentric big valve plate 24 is closed, outlet pressures P2 is much larger than import end pressure P1；Recirculation water one along
Export by-pass line 1 and pass through 2 entrance diaphragm epicoele 5 of index combustion fan, promote diaphragm 4 and diaphragm pressing plate 7 to move downward, pass through control
Bar 15 processed drives small valve plate 21 to rotate in an anti-clockwise direction, and slowly closing discharge orifice 23, finally, completely closes valve.Diaphragm cavity of resorption 8
Interior current flow out to valve inlet end along import by-pass line 14 by inlet adjusting valve 13.Pass through inlet adjusting valve 13
Drainage speed in adjustable diaphragm cavity of resorption 8, so as to can control the closing velocity of small valve plate 21.Referring to Fig. 6.
It is obvious to a person skilled in the art that the utility model is not limited to the details of above-mentioned one exemplary embodiment, and
And in the case of the spirit or essential attributes without departing substantially from the utility model, it can realize that this practicality is new in other specific forms
Type.Therefore, in all respects, the present embodiments are to be considered as illustrative and not restrictive, this practicality is new
The scope of type is indicated by the appended claims rather than the foregoing description, it is intended that the equivalency fallen in claim is contained
All changes in justice and scope are embraced therein.Any reference numeral in claim should not be considered as limitation
Involved claim.
Moreover, it will be appreciated that although the present specification is described in terms of embodiments, not each embodiment is only wrapped
Containing an independent technical solution, this narrating mode of specification is only that those skilled in the art should for clarity
Using specification as an entirety, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
It is appreciated that other embodiment.
Claims (1)
1. a kind of double-crank butterfly control valve for water pump, including outlet by-pass line, index combustion fan, diaphragm lid, diaphragm, locking screw
Mother, diaphragm pressing plate, the second bolt, diaphragm seat, the first bolt, inlet adjusting valve, import by-pass line, control-rod, valve body, pin
Axis, valve shaft, small valve plate, double-crank and eccentric big valve plate, it is characterised in that the outlet lower end of by-pass line and going out for valve body
The connection of mouth end, the diaphragm seat are bolted fixation by first with valve body, are provided between diaphragm lid and diaphragm seat on diaphragm
Chamber and diaphragm cavity of resorption, outlet by-pass line upper end are connected with diaphragm epicoele, and index combustion fan, institute are equipped among outlet by-pass line
The outer for stating diaphragm is connected fixation with diaphragm lid and diaphragm seat by the second bolt, and the upper end of the control-rod passes through diaphragm and film
The centre bore of piece pressing plate simultaneously connects fixation by locking nut；Control-rod stage casing passes through diaphragm seat, and control-rod lower end passes through axis pin
It is connected with double-crank；Sliding slot is provided with the double-crank, the axis pin is arranged in the sliding slot of double-crank, one end of double-crank
Hung on by annulus on valve shaft, the lower part of double-crank is welded with small valve plate, the input end of import by-pass line lower end and valve body
Connection, import by-pass line upper end are connected with diaphragm cavity of resorption, and inlet adjusting valve is equipped among import by-pass line；It is described eccentric big
Valve plate is equipped with two axle sleeves, and eccentric big valve plate is hung on valve shaft by two axle sleeves, and eccentric big valve plate is cylindrical with valve body
Valve seat endoporus coincide to form cone seal pair, and the valve shaft passes through the bearing of valve body on both sides of the middle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720946488.6U CN207261238U (en) | 2017-08-01 | 2017-08-01 | A kind of double-crank butterfly control valve for water pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720946488.6U CN207261238U (en) | 2017-08-01 | 2017-08-01 | A kind of double-crank butterfly control valve for water pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207261238U true CN207261238U (en) | 2018-04-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720946488.6U Active CN207261238U (en) | 2017-08-01 | 2017-08-01 | A kind of double-crank butterfly control valve for water pump |
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| CN (1) | CN207261238U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108980371A (en) * | 2018-09-28 | 2018-12-11 | 远大阀门集团有限公司 | A kind of Hyperbolic pipe power valve |
-
2017
- 2017-08-01 CN CN201720946488.6U patent/CN207261238U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108980371A (en) * | 2018-09-28 | 2018-12-11 | 远大阀门集团有限公司 | A kind of Hyperbolic pipe power valve |
| CN108980371B (en) * | 2018-09-28 | 2024-05-10 | 远大阀门集团有限公司 | Hyperbolic spool force valve |
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