CN204573234U - Piston type hydraulic control valve - Google Patents

Piston type hydraulic control valve Download PDF

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Publication number
CN204573234U
CN204573234U CN201520236033.6U CN201520236033U CN204573234U CN 204573234 U CN204573234 U CN 204573234U CN 201520236033 U CN201520236033 U CN 201520236033U CN 204573234 U CN204573234 U CN 204573234U
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CN
China
Prior art keywords
piston
valve
flap
hydraulic control
seat
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CN201520236033.6U
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Chinese (zh)
Inventor
周晓普
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Ningbo Amico Copper Valves Manufacturing Co Ltd
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Ningbo Amico Copper Valves Manufacturing Co Ltd
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  • Lift Valve (AREA)
  • Fluid-Driven Valves (AREA)

Abstract

The utility model discloses a kind of piston type hydraulic control valve, relate to a kind of by piston gear and in conjunction with spring come co-operate flap open and close pipeline valve, its structure also comprises the formations such as valve body, valve seat, flap, valve rod and valve gap, mainly piston gear is improved, the piston cover of integral structure is directly covered conjunction and is arranged on valve gap by it, be arranged in piston cover by supporting for piston again, it is more simple, reasonable that traditional Split piston structure is compared in this design, and it is easy for installation, leak few, promote operational safety; Therefore, do upper and lower motion when the medium in pipeline orders about piston, just can also do upper and lower motion by piston driving flap, and then realize the keying function of valve, and on piston, be also provided with " Y " type circle can ensure the proper motion of piston and be not easy to damage, extend piston working life.

Description

Piston type hydraulic control valve
Technical field
The utility model relates to a kind of pipeline valve, refers in particular to piston type hydraulic control valve.
Background technique
Hydraulic control valve is a kind of valve taking pipe medium pressure as power and carry out opening and closing, regulating, and valve just can reach the effect of switching and pilot line flow, pressure by opening and closing function.On this basis, utilize hydraulic transmission principle to control Lift or the closedown of flap, reaching the requirement on valve performance, and utilize ducted fluid not need independently hydraulic power unit as hydraulic transmission medium, both the investment of equipment had been saved, energy saving again, also can reach the object automatically controlled.But traditional valve products adopts diaphragm type structure usually, valve realizes opening and closing function by film sheet, easily occur producing because pressure, flow sharply change vibration, noise compared with greatly, the shortcoming such as film easily destroys, inflow-rate of water turbine is few, the pressure loss is large.Therefore, for the shortcoming of conventional hydraulic control valve, design a kind of piston type hydraulic control valve rational in infrastructure, that performance is more excellent and be extremely necessary.At present, although hydraulic control valve market adopting piston gear carry out control valve keying also has much, but structural design is too complicated, as " hydraulic control valve " that disclosed China Patent No. is 201020182213.8, piston cylinder is mainly designed to the valve gap of split-type structural, valve plate and sleeve by it, then is arranged in sleeve by piston, and this structural design brings very big inconvenience to installation, and easily there is leakage, operational safety is not good.
Summary of the invention
Technical problem to be solved in the utility model is to overcome the defect of prior art and provides a kind of reasonable in design, easy for installation, service-strong piston type hydraulic control valve.
Technical problem of the present utility model is achieved through the following technical solutions:
A kind of piston type hydraulic control valve, comprise valve body, interconnect and be arranged on water intake and the water outlet at valve body two ends, be arranged on into, valve seat between water outlet, sealing is arranged on the valve gap of body top, and lifting movable sealing is arranged on the valve rod in valve body, this valve rod lower end is provided with and forms with described valve seat the flap contacting and seal and open and close, valve rod movable upper end connects piston gear through valve gap, spring is set with outside valve rod, the two ends difference pushing tow of this spring is on flap and valve gap, described piston gear comprises cover and closes the piston cover be arranged on valve gap, and the supporting piston be arranged in piston cover, described valve rod movable upper end is connected on piston through valve gap, described piston cover top is provided with water inlet and osculum, and this water inlet is communicated with water intake, and osculum is communicated with water outlet.
Described outside piston side face is provided with two pass " Y " the type circle with described piston cover contact internal walls.Mounting hole is provided with between described entery and delivery port, line between the shaft axis of this mounting hole and described entery and delivery port angularly tilts, described valve seat is the seat ring that a sealing is arranged in described mounting hole, and described flap and the annular top surface of described seat ring form to contact to seal and open and close.
Be provided with guide pin bushing between described valve rod and valve gap, this guide pin bushing is fixedly installed in valve gap, the inner peripheral surface of guide pin bushing is provided with setting-in and fixes and form the two pass "O"-ring of motive sealing with described valve rod.
The fixed installation structure of described guide pin bushing in valve gap is provided with shoulder hole on valve gap, and described guide pin bushing outer peripheral surface is provided with a circle and takes on outward, and the shoulder hole that this guide pin bushing is fitted in valve gap is interior and fastening by locking nut.
Described valve rod lower end is provided with and is connected with flap seat, and described flap is fixedly mounted on described flap seat bottom surface by pressing plate, and described spring one end pushing tow is on flap seat.
Described water intake is provided with into water interface, and water outlet is provided with water outlet mouthpiece, and described water inlet interface is connected by the water inlet of conduit with described piston cover top, and described water outlet mouthpiece is connected by the osculum of conduit with described piston cover top.
Compared with prior art, the utility model mainly improves piston gear, it the piston cover of integral structure is directly covered conjunction be arranged on valve gap, be arranged in piston cover by supporting for piston again, it is more simple, reasonable that traditional Split piston structure is compared in this design, and easy for installation, leak few, promote operational safety; Therefore, do upper and lower motion when the medium in pipeline orders about piston, just can also do upper and lower motion by piston driving flap, and then realize the keying function of valve, and on piston, be also provided with " Y " type circle can ensure the proper motion of piston and be not easy to damage, extend piston working life.
Accompanying drawing explanation
Fig. 1 is sectional structure schematic diagram of the present utility model.
Embodiment
To elaborate again to the utility model embodiment by above-mentioned accompanying drawing below.
As shown in Figure 1,1. valve seat, 2. valve body, 21. water intakes, 22. water inlet interfaces, 23. water outlets, 24. water outlet mouthpieces, 3. flap, 4. flap seat, 5. spring, 6. valve rod, 7. piston, 8. piston cover, 81. water inlets, 82. osculums, 83. epicoeles, 9. " Y " type circle, 10. guide pin bushing, 11. locking nuts, 12. valve gaps, 13. pressing plates.
Piston type hydraulic control valve be a kind of by piston gear and in conjunction with spring 5 come co-operate flap 3 open and close pipeline valve, its structure is mainly made up of valve body 2, valve seat 1, flap 3, valve rod 6, valve gap 12 and piston gear etc.
Described valve body 2 adopts hollow tubular structure, the through water intake of level 21 and water outlet 23 is respectively equipped with at valve body 2 two ends, entery and delivery port is all set to the structural type of Flange joint, and water intake 21 place is provided with into water interface 22, and water outlet 23 place is provided with water outlet mouthpiece 24; Valve seat 1 is provided with between described entery and delivery port, this valve seat is actually a seat ring structure, namely a mounting hole is provided with between the entery and delivery port first in valve body 2, line between the shaft axis of this mounting hole and entery and delivery port angularly tilts, and seat ring is directly threaded in mounting hole, also need to arrange "O"-ring to connect sealing between seat ring and mounting hole, the annular top surface at seat ring top slightly need exceed mounting hole and contact for flap 3.
Valve rod 6 and flap 3 are set above described valve seat 1, this valve rod 6 is that lifting movable sealing is arranged in valve body 2, and the shaft axis of valve rod 6 must with the shaft axis of valve seat 1 position relationship in an overlapping, the flap seat 4 being done fastening installation by hexagon nut is provided with in valve rod 6 lower end, and flap 3 is rubber gasket sheets, it is fixedly mounted on the bottom surface of flap seat 4 by many screws and pressing plate 13, then the lifting activity of valve rod 6 will drive flap 3 end contact or depart from the annular top surface of valve seat 1, and the sealing namely constituting valve opens and closes.
Described valve gap 12 is arranged on the middle flanged surface at valve body 2 top, is connected fastening between the two, also arranges "O"-ring to connect sealing between valve gap 12 and valve body 2 by many hexagon head bolts and hexagon nut realization; The spring 5 be sleeved on outside valve rod 6 is provided with between valve gap 12 and valve seat 1, this spring upper end pushing installation is on valve gap 12 inner bottom surface, lower end pushing installation on flap seat 4, therefore makes the flap 3 under normality can be close to all the time on the annular top surface of valve seat 1 under the elastic force effect of spring 5.
Described valve rod 6 movable upper end connects piston gear through valve gap 12, guide pin bushing 10 is provided with between valve rod 6 and valve gap 12, this guide pin bushing is fixedly mounted in valve gap 12, its mounting structure is: valve gap 12 is provided with shoulder hole, guide pin bushing 10 is fitted in shoulder hole, guide pin bushing 10 is provided with a circle take on outward as installation location, then does fastening by locking nut 11; Meanwhile, the inner peripheral surface of guide pin bushing 10 needs be provided with setting-in and fix "O"-ring, motive sealing can be formed with valve rod 6.
Described piston gear comprises the piston cover 8 of integrative-structure, this piston cover just can be covered conjunction fast by screw and is arranged on valve gap 12, namely cavity between piston cover 8 and valve gap 12 constitutes piston cavity, and piston 7 is supporting is arranged in piston cover 8, and piston cavity is separated into mutual disconnected epicoele 83 and cavity of resorption, piston 7 outer peripheral surface is provided with and the two pass of piston cover 8 contact internal walls " Y " type circle 9, to extend piston 7 working life, valve rod 6 upper end is then movable to be fixedly connected on piston 7 through after guide pin bushing 10 by hexagon nut, therefore band ovable valve stem 6 is synchronized with the movement by piston, water inlet 81 and osculum 82 is also respectively equipped with at the top of piston cover 8, this water inlet 81 is connected by the water inlet interface 22 of conduit with water intake 21 place, this osculum 82 is connected by the water outlet mouthpiece 24 of conduit with water outlet 23 place.
Working principle of the present utility model is: medium enters the water intake 21 of valve body 2, the conduit connected through water inlet interface 22 place again enters in the epicoele 83 of piston gear through the water inlet 81 at piston cover 8 top, when the pressure in epicoele equals the inlet pressure of water intake 21, flap 3, at the moved downward of spring 5, makes flap 3 contact with valve seat 1 and seals; When the medium in piston gear epicoele 83 is discharged to the water outlet 23 of valve body 2 by the conduit that osculum 82 is connected through water outlet mouthpiece 24, pressure in epicoele 83 is less than the inlet pressure of water intake 21, then piston 7 moves upward and is with ovable valve stem 6 and flap 3 to depart from valve seat 1, then valve is opened thereupon.

Claims (7)

1. a piston type hydraulic control valve, comprise valve body (2), interconnect and be arranged on water intake (21) and the water outlet (23) at valve body (2) two ends, be arranged on into, valve seat (1) between water outlet, sealing is arranged on the valve gap (12) at valve body (2) top, and lifting movable sealing is arranged on the valve rod (6) in valve body (2), this valve rod lower end is provided with the flap (3) forming with described valve seat (1) and contact and seal and open and close, valve rod (6) movable upper end connects piston gear through valve gap (12), spring (5) is set with outside valve rod (6), the two ends difference pushing tow of this spring is on flap (3) and valve gap (12), it is characterized in that described piston gear comprises cover and closes the piston cover (8) be arranged on valve gap (12), and the supporting piston (7) be arranged in piston cover (8), described valve rod (6) movable upper end is connected on piston (7) through valve gap (12), described piston cover (8) top is provided with water inlet (81) and osculum (82), and this water inlet (81) are communicated with water intake (21), and osculum (82) is communicated with water outlet (24).
2. piston type hydraulic control valve according to claim 1, is characterized in that described piston (7) outer peripheral surface is provided with two pass " Y " type circle (9) with described piston cover (8) contact internal walls.
3. piston type hydraulic control valve according to claim 1 and 2, it is characterized in that being provided with mounting hole between described entery and delivery port (21,23), line between the shaft axis of this mounting hole and described entery and delivery port (21,23) angularly tilts, described valve seat (1) is the seat ring that a sealing is arranged in described mounting hole, and described flap (3) and the annular top surface of described seat ring form to contact to seal and open and close.
4. piston type hydraulic control valve according to claim 1 and 2, it is characterized in that being provided with guide pin bushing between described valve rod and valve gap, this guide pin bushing is fixedly installed in valve gap, the inner peripheral surface of guide pin bushing is provided with setting-in and fixes and form the two pass "O"-ring of motive sealing with described valve rod.
5. piston type hydraulic control valve according to claim 4, it is characterized in that the described fixed installation structure of guide pin bushing (10) in valve gap (12) is provided with shoulder hole on valve gap (12), described guide pin bushing (10) outer peripheral surface is provided with a circle and takes on outward, and the shoulder hole that this guide pin bushing (10) is fitted in valve gap (12) is interior and fastening by locking nut (11).
6. piston type hydraulic control valve according to claim 1 and 2, it is characterized in that described valve rod (6) lower end is provided with and be connected with flap seat (4), described flap (3) is fixedly mounted on described flap seat (4) bottom surface by pressing plate (13), and described spring (5) one end pushing tow is on flap seat (4).
7. piston type hydraulic control valve according to claim 1 and 2, it is characterized in that described water intake (21) is provided with into water interface (22), water outlet (23) is provided with water outlet mouthpiece (24), described water inlet interface (22) is connected with the water inlet (81) at described piston cover (8) top by conduit, and described water outlet mouthpiece (24) is connected with the osculum (82) at described piston cover (8) top by conduit.
CN201520236033.6U 2015-04-20 2015-04-20 Piston type hydraulic control valve Active CN204573234U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201520236033.6U CN204573234U (en) 2015-04-20 2015-04-20 Piston type hydraulic control valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201520236033.6U CN204573234U (en) 2015-04-20 2015-04-20 Piston type hydraulic control valve

Publications (1)

Publication Number Publication Date
CN204573234U true CN204573234U (en) 2015-08-19

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ID=53865874

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201520236033.6U Active CN204573234U (en) 2015-04-20 2015-04-20 Piston type hydraulic control valve

Country Status (1)

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CN (1) CN204573234U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105587922A (en) * 2015-12-09 2016-05-18 安徽铜都流体科技股份有限公司 Energy-saving pump control valve
CN107309611A (en) * 2017-06-28 2017-11-03 泉州市沪航阀门制造有限公司 A kind of production method of control valve for water pump

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105587922A (en) * 2015-12-09 2016-05-18 安徽铜都流体科技股份有限公司 Energy-saving pump control valve
CN105587922B (en) * 2015-12-09 2018-05-15 安徽铜都流体科技股份有限公司 Energy-saving pump-controlling valve
CN107309611A (en) * 2017-06-28 2017-11-03 泉州市沪航阀门制造有限公司 A kind of production method of control valve for water pump

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