CN203671007U - Water-loss-free noise-free automatic-control water pump control valve - Google Patents
Water-loss-free noise-free automatic-control water pump control valve Download PDFInfo
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- CN203671007U CN203671007U CN201320738026.7U CN201320738026U CN203671007U CN 203671007 U CN203671007 U CN 203671007U CN 201320738026 U CN201320738026 U CN 201320738026U CN 203671007 U CN203671007 U CN 203671007U
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Abstract
The utility model relates to a water-loss-free noise-free automatic-control water pump control valve. The water-loss-free noise-free automatic-control water pump control valve comprises a cylindrical valve body, a bonnet, a valve plate and a hydraulic cylinder, wherein the hydraulic cylinder is coaxially and fixedly arranged in an inner cavity of the valve body through a rib plate, the left side water inlet end of the valve body is connected with the bonnet, a piston shaft of the hydraulic cylinder is arranged in a center hole formed in a support on the inner side of the bonnet in a supported mode, the valve plate is connected to the piston shaft in series, the valve plate is arranged between the hydraulic cylinder and a front valve plate, the hydraulic cylinder comprises a cylinder body, an end cover, the piston shaft and a piston, the end cover is connected with an open surface of the cylinder body in a closed mode, the cylinder body is filled with hydraulic media, the piston shaft is coaxially connected with the cylinder body and the end cover in series, a sealing ring is arranged at the position of connection between the piston shaft and the cylinder body, a sealing ring is arranged at the position of connection between the piston shaft and the end cover, the piston is fixedly connected to the piston shaft in series, an inner cavity of the cylinder body includes a plurality of stroke sections with different inner diameters, and the piston moves in the cylinder body and is in clearance fit with the stroke sections.
Description
Technical field
The utility model relates to water system apparatus field, is specifically related to a kind of zero damage by water noise free automatic controlled water pump control valve.
Background technique
Water-supply systems are used many high-pressure water supply device parallel pumpings conventionally, to ensure at the urban water pressure of supply water of peak period.Period when water low ebb, to corresponding the reducing of pressure of supply water demand of water system, needs closed portion water supply equipment at dead of night.In device shutdown process, water system is utilized the control valve sealing exit of pump of pump outlet conventionally, prevents that the high pressure water refluence in water supply line from backwashing, and damages water system.
Control valve for water pump is connected in high pressure water delivery side of pump conventionally, in the moment of water pump opening and closing, high pressure water is cushioned.The disclosed a kind of control valve structure of patent CN201020221068, there is following problem in this structure: (1) complex structure, produce water hammer: utilize valve plate in special-shaped cavity, to be separated out two special-shaped cavitys, utilizing piston mechanism to controlling valve plate closing velocity, water can produce larger hydraulic loss in the time of the irregular valve through control valve; (2) buffer speed is single: in the whole process of the opening and closing of valve plate, keep compared with slow rate always, be unfavorable for the quick closedown of water pump, efficiency is lower; (3) produce noise: have the control valve that adopts double valve plates structure, little valve plate underside is connected in series large valve plate, and when system closing, large valve plate piece speed under gravity and Water Pressure falls, not only produce noise but also valve body is produced to injury.
Summary of the invention
The problems such as control valve complex structure of the prior art, hydraulic loss are large in order to solve, noise, the purpose of this utility model is to provide the many speed of one simple in structure bufferings, zero damage by water, noiseless automatic controlled water pump control valve.
For reaching above object, the technological scheme that the utility model is taked is:
A kind of zero damage by water noise free automatic controlled water pump control valve, comprise column valve body, valve gap, valve plate and oil hydraulic cylinder, described oil hydraulic cylinder is coaxially fixed on body cavity through floor, valve body left side feed-water end is connected with valve gap, the piston shaft of oil hydraulic cylinder is supported in the carriage center hole of valve gap inner side, on piston shaft, be serially connected with valve plate, described valve plate is arranged between oil hydraulic cylinder and front valve plate, described oil hydraulic cylinder comprises cylinder body, end cap, piston shaft and piston, described end cap and airtight connection of cylinder body opening surface face, cylinder is filled with hydraulic medium, described piston shaft is coaxially connected in series cylinder body and end cap, the joint of piston shaft and cylinder body and end cap is provided with seal ring, described piston is fixedly serially connected with on piston shaft, described inner chamber of cylinder block comprises the trip segment of multistage different inner diameters, described piston moves and is Spielpassung state with each trip segment in cylinder body.
Further, the water intake cross sectional area at described valve gap center is less than valve plate section area, the poor water intake cross sectional area that is not less than of described valve body section area and valve plate section area, and described valve body water outlet cross sectional area is not less than water intake cross sectional area.
Further, between described each trip segment, connect through conical surface breeze way.
Further, described piston shaft one end is quill shaft, and quill shaft is provided with at least two through holes makes quill shaft inner chamber and inner chamber of cylinder block be UNICOM's state, and described at least two through holes are arranged at respectively the left and right sides of piston.
Further, described quill shaft inner chamber is connected with adjusting screw rod, and the through hole aperture that the head of adjusting screw rod stretches into quill shaft inner chamber and piston right side is Partial Blocking state.
Again further, described hydraulic medium is hydraulic oil or water.
Take the beneficial effect of above technological scheme to be:
1. the valve body of control valve is cylinder type, valve body cross section and valve plate cross section difference are not less than water intake cross section, valve body water outlet cross section equates with water intake cross section, valve plate and valve gap fitting surface are arc guide face, current almost do not have resistance when through valve body, and body cavity, without impact, is reached to zero damage by water, without water hammer, noiseless effect.
2. the valve plate of valve body is fixedly installed on the piston shaft of oil hydraulic cylinder, opens or turn-off transient in water system, and it is closed that the pressure difference of valve plate left and right drives valve plate to open, and realizes automatic control unlatching, closure.
3. oil hydraulic cylinder is provided with the trip segment of multistage different inner diameters, and difference Spielpassung between piston and each trip segment, realizes multiple speed section buffering, gap length is relevant to the internal diameter of each trip segment, and gap is larger, and the hydraulic medium UNICOM speed of piston both sides is faster, piston is obstructed less, and passive travelling speed is faster; The intersegmental conical surface transition that arranges of adjacent stroke of different inner diameters, reaches the objects of many speed bufferings, prevents velocity jump and the impact or the detonation that cause, has extended the life-span of oil hydraulic cylinder.
4. piston shaft is taked hollow design, the both sides of piston are provided with the through hole of UNICOM's piston shaft inner chamber and hydraulic cylinder intracoelomic cavity, form low speed apocenosis passage, in piston shaft, connect adjusting screw rod, head by adjusting screw rod stops up through hole, whole low speed drain age velocity is carried out in the effective discharge opeing cross section that reduces through hole, thereby adjusts the travelling speed of piston, and then controls unlatching or the closing velocity of valve plate.
Brief description of the drawings
Fig. 1 is the structural representation of control valve;
Fig. 2 is hydraulic cylinder structure schematic diagram.
In figure: valve gap 1, valve body 2, oil hydraulic cylinder 3, end cap 31, cylinder body 32, left through hole 33, right through hole 34, adjusting screw rod 35, seal ring 36, section 37 at a slow speed, changeover portion 38, quick fraction 39, valve plate 4, piston shaft 5, piston 6, support 7, floor 8.
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is further described:
As shown in the figure, a kind of zero damage by water noise free automatic controlled water pump control valve comprises valve gap 1, valve body 2, oil hydraulic cylinder 3, valve plate 4, piston shaft 5, piston 6, support 7 and floor 8.Described oil hydraulic cylinder 3 is coaxially fixed on valve body 2 inner chambers through floor 8, the feed-water end fixed seal connection in valve body 2 left sides has valve gap 1, valve gap 1 center is provided with water intake, piston shaft 5 movable supporting of oil hydraulic cylinder are in the center hole of the support 7 of valve gap 1 inner side, on described piston shaft 5, be fixedly connected with valve plate 4, described valve plate 4 is arranged between oil hydraulic cylinder 3 and valve gap 1, valve plate 4 is that arc divides stream interface with water intake fitting surface, the area of valve plate 4 is slightly larger than and valve gap water intake area, valve body 2 inner chamber cross sections and valve plate difference in areas are not less than water intake area, valve body the other end water outlet area equates with water intake area.
Described oil hydraulic cylinder comprises end cap 31, cylinder body 32, piston shaft 5, piston 6, left through hole 33, right through hole 34, adjusting screw rod 35, seal ring 36, described end cap 31 and airtight connection of cylinder body 32 left sides, in cylinder body 32, be full of hydraulic medium, described piston shaft 5 is coaxially serially connected with cylinder body 32 and end cap 31, between piston shaft 5 and cylinder body 32 and end cap 31, be provided with seal ring 36, described piston 6 is fixedly serially connected with on piston shaft 5, piston is connected with inboard wall of cylinder block through seal ring, described inner chamber of cylinder block is divided into internal diameter different section 37 and quick fraction 39 at a slow speed, described at a slow speed section 37 and quick fraction 39 between through changeover portion 38 smooth connections, piston 6 and the at a slow speed little Spielpassung of inwall of section 37, piston 6 and changeover portion 38 and the large Spielpassung of quick fraction 39, one end of described piston shaft 5 is quill shaft, the outer surface of piston shaft is provided with more than one left through hole 33 and the more than one right through hole 34 of UNICOM's cylinder body 32 inner chambers and piston shaft 5 inner chambers, and described left through hole 33 and right through hole 34 are arranged at respectively the left and right sides of piston 6, piston shaft 5 inner chambers are provided with internal thread, and described adjusting screw rod 35 outside threads are connected with the screw-internal thread fit of piston shaft 5, and the left end of adjusting screw rod 35 screws in piston shaft 5 inner chambers to right through hole 34 places, and it is adjustable that described adjusting screw rod 35 stretches into length in piston shaft 5.Adjust it by rotation adjusting screw rod 35 and stretch into the length in piston shaft, adjusting screw rod head stops up the degree in the aperture of right through hole 34, reaches the size that regulates path, regulates the object of buffer speed.
When water system supplies water, the piston of oil hydraulic pump 3 is positioned at the rightmost side quick fraction 39 of cylinder body 32, in the time closing water system, intrasystem pressure is die-offed, hydraulic pressure in pipeline is greater than water system pressure and refluxes, the water slug valve plate refluxing, valve plate 4 pulls piston 6 to move to left through piston shaft 5, between the inwall of piston 6 and quick fraction 39, there is larger gap, the hydraulic medium in piston 6 left sides through gap and left through hole 33 to piston right side rapid flow, piston 6 is little to the resistance of valve plate 4, and valve plate 4 moves to alleviate pouring in down a chimney of high pressure water to valve gap 1 fast; When piston movement is to changeover portion 38, between piston and changeover portion 38 inwalls, gap reduces gradually, the hydraulic medium in piston 6 left sides through gap and left through hole 33 slow down and flow to piston right side, the resistance on piston increases gradually, the speed attenuating that valve plate 4 is closed; When piston 6 moves to low speed segment 37, little Spielpassung between piston 6 and low speed segment 37 inwalls, the hydraulic medium in piston 6 left sides slowly flows to piston right side through left through hole 33 substantially, and piston 6 is strengthened by resistance and slowly moves to left until move to the high order end of cylinder body 32, and valve plate 4 is slowly closed.In whole closing process, valve plate is first fast moving under the control of oil hydraulic cylinder, avoids a large amount of high pressure waters to pour in damage system, then it is mobile to slow down, last slowly closed, completes buffering.
In the time opening water system, intrasystem pressure is greater than the pressure in pipeline, in system, right side promotes valve plate 4 under water, valve plate 4 drives piston 6 to move to the right through piston shaft 5, the hydraulic medium on piston 6 right sides slowly flows to piston left side through right through hole 34, piston shaft 6 inner chambers, left through hole 33 successively, piston slowly moves to right at low speed segment 37, and valve plate 4 is slowly opened; Piston 6 moves to changeover portion 38, and between piston 6 and changeover portion 38 inwalls, gap increases gradually, and the hydraulic medium on piston 6 right sides accelerates to flow through gap and on the left of right through hole 34 pistons, and piston 6 is reduced by flowed friction gradually, and valve plate opening speed is accelerated; When piston 6 moves to quick fraction 39, the hydraulic medium on piston 6 right sides is flowed left fast by the gap between piston and high regime 39 swimmingly, and piston moves right fast, and valve plate 4 is opened fast.In whole opening process, valve plate is first slowly opened under the control of oil hydraulic cylinder, then accelerates to open, and finally completes fast unlatching, guarantees water application efficiency.
Claims (6)
1. a damage by water noise free automatic controlled water pump control valve, comprise column valve body, valve gap, valve plate and oil hydraulic cylinder, described oil hydraulic cylinder is coaxially fixed on body cavity through floor, valve body left side feed-water end is connected with valve gap, the piston shaft of oil hydraulic cylinder is supported in the carriage center hole of valve gap inner side, on piston shaft, be serially connected with valve plate, described valve plate is arranged between oil hydraulic cylinder and valve gap, it is characterized in that, described oil hydraulic cylinder comprises cylinder body, end cap, piston shaft and piston, described end cap is connected with cylinder body opening surface is airtight, cylinder is filled with hydraulic medium, described piston shaft is coaxially connected in series cylinder body and end cap, the joint of piston shaft and cylinder body and end cap is provided with seal ring, described piston is fixedly serially connected with on piston shaft, described inner chamber of cylinder block comprises the trip segment of multistage different inner diameters, described piston moves and is Spielpassung state with each trip segment in cylinder body.
2. a kind of zero damage by water noise free automatic controlled water pump control valve according to claim 1, it is characterized in that, the water intake cross sectional area at described valve gap center is less than valve plate section area, the poor water intake cross sectional area that is not less than of described valve body section area and valve plate section area, described valve body water outlet cross sectional area is not less than water intake cross sectional area.
3. a kind of zero damage by water noise free automatic controlled water pump control valve according to claim 1, is characterized in that, between described each trip segment, connects through conical surface breeze way.
4. a kind of zero damage by water noise free automatic controlled water pump control valve according to claim 1, it is characterized in that, described piston shaft one end is quill shaft, quill shaft is provided with at least two through holes makes quill shaft inner chamber and inner chamber of cylinder block be UNICOM's state, and described at least two through holes are arranged at respectively the left and right sides of piston.
5. a kind of zero damage by water noise free automatic controlled water pump control valve according to claim 4, is characterized in that, described quill shaft inner chamber is connected with adjusting screw rod, and the through hole aperture that the head of adjusting screw rod stretches into quill shaft inner chamber and piston right side is Partial Blocking state.
6. a kind of zero damage by water noise free automatic controlled water pump control valve according to claim 1, is characterized in that, described hydraulic medium is hydraulic oil or water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320738026.7U CN203671007U (en) | 2013-11-21 | 2013-11-21 | Water-loss-free noise-free automatic-control water pump control valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320738026.7U CN203671007U (en) | 2013-11-21 | 2013-11-21 | Water-loss-free noise-free automatic-control water pump control valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203671007U true CN203671007U (en) | 2014-06-25 |
Family
ID=50967301
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320738026.7U Withdrawn - After Issue CN203671007U (en) | 2013-11-21 | 2013-11-21 | Water-loss-free noise-free automatic-control water pump control valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203671007U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103836254A (en) * | 2013-11-21 | 2014-06-04 | 周明泉 | Zero-water-damage noise-free self-control water pump control valve |
-
2013
- 2013-11-21 CN CN201320738026.7U patent/CN203671007U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103836254A (en) * | 2013-11-21 | 2014-06-04 | 周明泉 | Zero-water-damage noise-free self-control water pump control valve |
| CN103836254B (en) * | 2013-11-21 | 2016-09-28 | 周明泉 | A kind of noiselessness automatic controlled water pump control valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140625 Effective date of abandoning: 20160928 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |