CN209385735U - A kind of double-plate slow check-valves - Google Patents
A kind of double-plate slow check-valves Download PDFInfo
- Publication number
- CN209385735U CN209385735U CN201822259290.8U CN201822259290U CN209385735U CN 209385735 U CN209385735 U CN 209385735U CN 201822259290 U CN201822259290 U CN 201822259290U CN 209385735 U CN209385735 U CN 209385735U
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- Prior art keywords
- valve
- plate
- piston
- slow
- valve shaft
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- 238000007789 sealing Methods 0.000 claims abstract description 29
- 239000012530 fluid Substances 0.000 claims abstract description 3
- 230000007246 mechanism Effects 0.000 claims description 6
- 101100532451 Rattus norvegicus Slc22a17 gene Proteins 0.000 claims description 5
- 230000003139 buffering effect Effects 0.000 claims 1
- 230000007423 decrease Effects 0.000 claims 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 6
- 238000000034 method Methods 0.000 abstract description 4
- 230000001066 destructive effect Effects 0.000 abstract description 3
- 230000008569 process Effects 0.000 abstract description 3
- 238000005086 pumping Methods 0.000 abstract description 2
- 230000001105 regulatory effect Effects 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 4
- 230000004048 modification Effects 0.000 description 4
- 238000012986 modification Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 238000010992 reflux Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000013535 sea water Substances 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
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- Check Valves (AREA)
Abstract
The utility model discloses a kind of double-plate slow check-valves, including valve body, the valve plate for the semi-circular shape being arranged symmetrically, valve shaft, parallel with valve shaft axis, slow closing device are mixed.It is characterized by: being provided with symmetrical oil inlet on the valve body toroid surface, the valve body is vertically-mounted to be had the valve shaft and described mixes axis, symmetrical valve plate is installed on the valve shaft, the top that the valve shaft stretches out the body portion is provided with the slow closing device, the slow closing device is connected on the oil inlet of the valve body by the oil pipe at its both ends, when the utility model can accomplish termination of pumping, the Slow Close process of valve plate can effectively prevent destructive water hammer, it effectively prevent pipeline fluid to flow backwards, guarantee pipeline safety, extend the utility model service life, oil pressure Slow Close system reliable operation, it is adjustable that the Slow Close time is adjusted using regulating valve, sealing surface is wear-resistant, long service life.
Description
Technical field
The utility model relates to valve arrangement technical fields, and in particular to a kind of double-plate slow check-valves.
Background technique
Double-plate slow check-valves can prevent medium on the drainage pipeline of the media such as clear water, sewage and seawater
It flows backwards, and destruction of the water hammer to valve member can be prevented, guarantee that pipeline safety is unimpeded.A kind of existing micro-resistance slowly-closed butterfly swing check valve one
As micro- resistance effect reached by back-shaped spring, when medium enters in valve, medium is per se with strong thrust, in back-shaped spring
Under blocking, valve plate is smoothly open, and when medium entrance pressure is lower than outlet pressure, medium will generate reflux, plays at this time
The valve member of Slow Close effect is generally air cylinder group, and piston is in extended position and withstands valve plate so that it will not strong in medium
It is completely closed suddenly under the action of reflux power, remaining fraction area passes through medium, slowly completely closes afterwards, eliminates water hammer
Effect；Back-shaped spring is bent repeatedly during medium passes in and out valve plate, can generate elastic loss, with the increase for using the time,
Will appear elastic fatigue phenomenon, lead to micro-resistance slowly-closed effect failure, although and back-shaped spring huge work is generated during micro- resistance
With, but there is no assisted groups to work during Slow Close, and working efficiency is not high.
Utility model content
The purpose of this utility model is to provide one kind, solve the problems, such as to generate destructive water hammer in valve closing process.
In order to solve the above technical problems, the utility model uses a kind of following technical scheme: double-plate slow check-valves, packet
It includes valve body, the valve plate of the semi-circular shape that is arranged symmetrically, valve shaft, parallel with valve shaft mix axis, slow closing device, the valve body circular ring shape
Be provided with symmetrical oil inlet on surface, the valve body is vertically-mounted have the valve shaft and it is described mix axis, installed on the valve shaft
There is symmetrical valve plate, the top that the valve shaft stretches out the body portion is provided with the slow closing device, the Slow Close dress
It sets and is connected to by the oil pipe at its both ends on the oil inlet of the valve body.
Further technical solution is: sealing pair is provided in the valve body, the sealing pair includes being arranged in the valve
The rubber layer of body cylindrical form interior surface, the valve plate external peripheral surface are enclosed with raised sealing ring, are arranged in the valve
The hollow rubber set with card slot on axis, the sealing ring under the valve plate closed state are fitted close with rubber layer,
Hollow rubber set outer surface fits closely the valve plate, and the hollow rubber set is matched by card slot and the valve shaft rotary sleeve
Close rotation.
Further technical solution is: bindiny mechanism, the bindiny mechanism are provided between the valve shaft and the valve plate
Including torsional spring, it is set in and has four valve shaft rotary sleeves, deep groove ball bearings of dottle pin on valve shaft, the fixed peace of the deep groove ball bearing
In the valve shaft rotary sleeve, the valve shaft rotary sleeve is connected by screw to the valve plate, and the torsional spring is set in described
On valve shaft, the one end of torsional spring is connect with the valve shaft rotary sleeve on the outside of it, the other end be equipped with extension, the extension with
The valve plate fits closely connection on one side.
Further technical solution is: the slow closing device includes throttle valve, oil cylinder, in the valve plate closure symmetrical cloth in corresponding position
The piston set, the oil cylinder are fixedly mounted on the valve body, and the two is provided with phase through-hole, above the oil cylinder with it is described
Throttle valve entrance is symmetrically connected with the oil pipe by flanged joint, the throttle valve exit, and the oil pipe passes through oil inlet
Mouth is communicated with the piston.
Further technical solution is: the valve cylinder-shaped inner surface is provided with piston mounting base, the piston installation
Sealing shroud, the sealing shroud are provided at the top of the piston mounting base and vertical with the valve plate, the piston mounting base
Upper seal, lower seal are installed, the upper seal and the piston are fitted close, the lower seal and the piston
Mounting base is fitted close.
Further technical solution is: the piston is provided with buffer unit, and the buffer unit includes high pressure spring, close
Push plate, telescopic rod are sealed, the sealing push plate is mounted on the piston cylinder bottom of the piston, and the telescopic rod is fixedly connected on described
The middle position of push plate is sealed, the other end is connect with piston boit, and the high pressure spring pocket is on the telescopic rod, the bomb
Spring one end is connected in sealing push plate, and the other end is connected on piston boit.
The utility model can be with: the oil cylinder is provided with level alarming device, and the level alarming device includes pressure
Sensor, alarm, buoy, the buoy are arranged inside oil cylinder, and the pressure sensor is arranged at oil cylinder Safe Levels,
Described pressure sensor one end can be contacted when oil level declines with the buoy, the pressure sensor other end and the report
Alert device connection.
Compared with prior art, the utility model has the beneficial effects that
1, when termination of pumping, the Slow Close process of valve plate can effectively prevent destructive water hammer, and pipeline fluid is effectively prevent to flow backwards, and protect
Demonstrate,prove pipeline safety.
2, it is adjustable that the Slow Close time is adjusted using regulating valve in oil pressure Slow Close system reliable operation.
3, sealing surface is wear-resistant, long service life.
4, warning device can timely feedback oil level in oil cylinder, prevent from damaging under slow closing device failure or serious conditions double
Plate Slow Close Valve.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model.
Fig. 2 is the side view of the utility model Fig. 1.
Fig. 3 is the structural schematic diagram of the utility model valve body.
Specific embodiment
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation
Example, the present invention will be further described in detail.It should be appreciated that specific embodiment described herein is only used to explain
The utility model is not used to limit the utility model.
Figures 1 and 2 show that: a kind of double-plate slow check-valves, the valve plate including valve body 1, the semi-circular shape being arranged symmetrically
2, valve shaft 3, it is parallel with valve shaft 3 mix axis 4, slow closing device, be provided with symmetrical oil inlet 6 on 1 toroid surface of valve body,
The valve body 1 is vertically-mounted have the valve shaft 3 and it is described mix axis 4, symmetrical valve plate 2 is installed on the valve shaft 3, it is described
The top that valve shaft 3 stretches out 1 part of valve body is provided with the slow closing device, and the slow closing device passes through the oil pipe 5 at its both ends
It is connected on the oil inlet 6 of the valve body.
Another embodiment of Fig. 3 crucial point: being provided with sealing pair in the valve body 1, the sealing pair include be arranged in it is described
The rubber layer of 1 cylindrical form interior surface of valve body, 2 external peripheral surface of the valve plate are enclosed with raised sealing ring, are arranged in institute
The hollow rubber set with card slot on valve shaft 3 is stated, the sealing ring under 2 closed state of valve plate is close with rubber layer
Cooperation, hollow rubber set outer surface fit closely the valve plate 2, and the hollow rubber set is revolved by card slot and the valve shaft
The cooperation rotation of pivoted housing 7.
Embodiment: being provided with bindiny mechanism between the valve shaft 3 and the valve plate 2, the bindiny mechanism include torsional spring 8,
Four valve shaft rotary sleeves 7, the deep groove ball bearings that dottle pin is had on valve shaft 3 are set in, the deep groove ball bearing is fixedly mounted on institute
It states in valve shaft rotary sleeve 7, the valve shaft rotary sleeve 7 is connected by screw to the valve plate 2, and the torsional spring 8 is set in the valve
On axis 3, described 8 one end of torsional spring is connect with the valve shaft rotary sleeve 7 on the outside of it, and the other end is equipped with extension, the extension
It fits closely and connect on one side with the valve plate 2.
Embodiment: the slow closing device includes throttle valve 9, oil cylinder 10, the piston being arranged symmetrically in the closure of valve plate 2 corresponding position
11, the oil cylinder 10 is fixedly mounted on the valve body 1, and the two is provided with phase through-hole, 10 top of oil cylinder with it is described
9 entrance of throttle valve is symmetrically connected with the oil pipe 5 by flanged joint, 9 exit of throttle valve, and the oil pipe 5 passes through
Oil inlet 6 is communicated with the piston 11.
Embodiment: 1 cylindrical form interior surface of valve body is provided with piston mounting base, and the piston 11 is mounted on the piston
Mounting base and vertical with the valve plate 2 is provided with sealing shroud at the top of the piston mounting base, and the sealing shroud is equipped with close
Seal, lower seal, the upper seal and the piston 11 are fitted close, and the lower seal and the piston mounting base are tight
Close fit.
Embodiment: the piston 11 is provided with buffer unit, and the buffer unit includes high pressure spring, sealing push plate, stretches
Contracting bar, the sealing push plate are mounted on the piston cylinder bottom of the piston 11, and the telescopic rod is fixedly connected on the sealing and pushes away
The middle position of plate, the other end are connect with piston boit, and the high pressure spring pocket is on the telescopic rod, the high pressure spring one end
It is connected in sealing push plate, the other end is connected on piston boit.
Preferred embodiment;The oil cylinder 10 is provided with level alarming device, and the level alarming device includes pressure sensing
Device, alarm, buoy, the buoy are arranged inside oil cylinder, and the pressure sensor is arranged at oil cylinder Safe Levels, described
Pressure sensor one end can be contacted when oil level declines with the buoy, the pressure sensor other end and the alarm
Connection.
Although reference be made herein to the utility model is described in multiple explanatory embodiments of the utility model, still,
It should be understood that those skilled in the art can be designed that a lot of other modification and implementations, these modifications and implementations
It will fall within scope and spirit disclosed in the present application.More specifically, it discloses in the application, drawings and claims
In range, can building block to theme combination layout and/or layout carry out a variety of variations and modifications.In addition to building block
And/or outside the modification and improvement of layout progress, to those skilled in the art, other purposes also be will be apparent.
Claims (7)
1. a kind of double-plate slow check-valves, including valve body (1), the valve plate (2) for the semi-circular shape being arranged symmetrically, valve shaft (3) and valve
Axis (3) it is parallel mix axis (4), slow closing device, it is characterised in that: be provided on valve body (1) toroid surface symmetrically into
Hydraulic fluid port (6), the valve body (1) is vertically-mounted have the valve shaft (3) and it is described mix axis (4), left and right is installed on the valve shaft (3)
Symmetrical valve plate (2), the top that the valve shaft (3) stretches out valve body (1) part are provided with the slow closing device, the Slow Close
Device is connected on the oil inlet (6) of the valve body by the oil pipe (5) at its both ends.
2. a kind of double-plate slow check-valves according to claim 1, it is characterised in that: be provided in the valve body (1) close
Envelope is secondary, and the sealing pair includes the rubber layer being arranged on the valve body (1) cylindrical form interior surface, the valve plate (2) excircle
It is coated with the sealing ring with protrusion, the hollow rubber set with card slot being arranged on the valve shaft (3), the valve plate
(2) sealing ring under closed state is fitted close with rubber layer, and hollow rubber set outer surface fits closely described
Valve plate (2), the hollow rubber set are rotated by card slot and valve shaft rotary sleeve (7) cooperation.
3. a kind of double-plate slow check-valves according to claim 1, it is characterised in that: the valve shaft (3) and the valve plate
(2) bindiny mechanism is provided between, the bindiny mechanism includes torsional spring (8), is set in four valves for having dottle pin on valve shaft (3)
Axis rotary sleeve (7), deep groove ball bearing, the deep groove ball bearing are fixedly mounted in the valve shaft rotary sleeve (7), the valve shaft rotation
Pivoted housing (7) is connected by screw to the valve plate (2), and the torsional spring (8) is set on the valve shaft (3), the torsional spring (8) one
End is connect with the valve shaft rotary sleeve (7) on the outside of it, and the other end is equipped with extension, the extension and the valve plate (2) one
Face fits closely connection.
4. a kind of double-plate slow check-valves according to claim 1, it is characterised in that: the slow closing device includes throttle valve
(9), oil cylinder (10), the piston (11) being arranged symmetrically in valve plate (2) closure corresponding position, the oil cylinder (10) is fixedly mounted on described
On valve body (1), and the two is provided with phase through-hole, and oil cylinder (10) top passes through flange with the throttle valve (9) entrance
Connection, throttle valve (9) exit is symmetrically connected with the oil pipe (5), the oil pipe (5) by oil inlet (6) with it is described
Piston (11) communicates.
5. a kind of double-plate slow check-valves according to claim 1, it is characterised in that: table in valve body (1) cylinder
Face is provided with piston mounting base, and the piston (11) is mounted on the piston mounting base and vertical with the valve plate (2), described
It is provided with sealing shroud at the top of piston mounting base, the sealing shroud is equipped with upper seal, lower seal, the upper seal and institute
Piston (11) tight fit is stated, the lower seal and the piston mounting base are fitted close.
6. a kind of double-plate slow check-valves according to claim 5, it is characterised in that: the piston (11) is provided with buffering
Device, the buffer unit include high pressure spring, sealing push plate, telescopic rod, and the sealing push plate is mounted on the piston (11)
Piston cylinder bottom, the telescopic rod is fixedly connected on the middle position of the sealing push plate, and the other end connect with piston boit, institute
High pressure spring pocket is stated on the telescopic rod, the high pressure spring one end is connected in sealing push plate, and the other end is connected to piston
On column.
7. a kind of double-plate slow check-valves according to claim 4, it is characterised in that: the oil cylinder (10) is provided with oil level
Warning device, the level alarming device include pressure sensor, alarm, buoy, and the buoy is arranged inside oil cylinder, institute
Pressure sensor is stated to be arranged at oil cylinder Safe Levels, described pressure sensor one end can oil level decline when with the buoy
Contact, the pressure sensor other end are connect with the alarm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822259290.8U CN209385735U (en) | 2018-12-30 | 2018-12-30 | A kind of double-plate slow check-valves |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822259290.8U CN209385735U (en) | 2018-12-30 | 2018-12-30 | A kind of double-plate slow check-valves |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209385735U true CN209385735U (en) | 2019-09-13 |
Family
ID=67862987
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822259290.8U Expired - Fee Related CN209385735U (en) | 2018-12-30 | 2018-12-30 | A kind of double-plate slow check-valves |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209385735U (en) |
-
2018
- 2018-12-30 CN CN201822259290.8U patent/CN209385735U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190913 |