CN206816576U - Switch the switching valve system of high-low pressure meter - Google Patents
Switch the switching valve system of high-low pressure meter Download PDFInfo
- Publication number
- CN206816576U CN206816576U CN201720302490.XU CN201720302490U CN206816576U CN 206816576 U CN206816576 U CN 206816576U CN 201720302490 U CN201720302490 U CN 201720302490U CN 206816576 U CN206816576 U CN 206816576U
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- pressure
- extension pipe
- pressure gauge
- plate
- valve system
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Abstract
The utility model discloses a kind of switching valve system for switching high-low pressure meter, belong to propeller hydraulic system field, aim to provide a kind of switching valve system for switching high-low pressure meter, the advantages of with the precision for improving manifold pressure oil measurement, its drip irrigation device is to be communicated with extension pipe in the connecting tube, the one end of the extension pipe away from connecting tube is connected with pressure gauge two, the range of the pressure gauge two is less than the range of pressure gauge one, when the pressure value in extension pipe is more than the range of pressure gauge two, the extension pipe is provided with control pressure oil stream to the constriction in pressure gauge two.
Description
Technical field
Propeller hydraulic system field is the utility model is related to, more particularly to a kind of switching valve system for switching high-low pressure meter
System.
Background technology
The propeller of ship has two kinds, first, adjustable pitch propeller has blade, Jiang Grains mechanisms, oil distributor, hydraulic system
And the five big part such as electric-control system or system composition.Second, traditional constant pitch airscrew, spacing oar does not have oil distributor etc., structure letter
It is single many.
Publication No. CN102530214A Chinese patent discloses a kind of hydraulic device for adjustable-pitch propeller with shaft-type oil distributor, bag
Include solenoid directional control valve, safety valve, counterbalance valve, check valve, bidirectional locking valve, oil distributor, displacement oil cylinder, switch valve, hydraulic power
Device, the rod chamber and rodless cavity of the displacement oil cylinder meet bidirectional locking valve, the oil-out A and oil-out of the oil distributor respectively
B is connected with check valve, solenoid directional control valve respectively, and oil-out C is set up on the oil-out A of the oil distributor same chamber, described with oil
Set up oil-out D, described oil-out C, D on the oil-out B of device same chamber to connect with switch valve oil inlet respectively, switch valve
Oil-out, pass to the fuel tank of hydraulic power unit.When being instructed in the displacement for receiving electric-control system, solenoid directional control valve obtains
Electricity, displacement pressure oil is exported to oil distributor, switch valve simultaneously must be electric with solenoid directional control valve, is changed into left position from right position, now switchs
Valve is closed, and pressure oil enters from A mouths returns to fuel tank after displacement oil cylinder by B mouths, and now the oil pressure of pressure oil is not aware that, is led to
Frequently with installing pressure gauge in pipe under test, but when the pressure of gauge measurement is smaller, the indicators turn in pressure gauge
It is in small distance so that operator's read untrue, to influence the pressure measurement accuracy of pressure oil.
Utility model content
In view of the deficienciess of the prior art, the purpose of this utility model is to provide a kind of cutting for switching high-low pressure meter
Valve system is changed, there is the advantages of precision for improving manifold pressure oil measurement.
To achieve the above object, the utility model provides following technical scheme：A kind of switching for switching high-low pressure meter
Valve system, including the pressure gauge one being arranged on by connecting tube on pipeline to be measured, extension pipe is communicated with the connecting tube, it is described
The one end of extension pipe away from connecting tube is connected with pressure gauge two, and the range of the pressure gauge two is less than the range of pressure gauge one, when
When pressure value in extension pipe is more than the range of pressure gauge two, the extension pipe is provided with control pressure oil stream to pressure gauge two
Constriction.
By using above-mentioned technical proposal, when the pressure of the pressure oil in extension pipe is less than the range of pressure gauge two, pressure
Table two and pressure gauge one measure the pressure of the pressure oil in extension pipe together, and the survey measurements of pressure gauge two is more accurate, operator
The reading of pressure gauge two need to be only observed, the precision of pipeline inner pressure oil measurement to be measured is improved, when the pressure in extension pipe is big
When the range of small dial plate, constriction limits pressure oil and flows to pressure gauge two, pressure gauge two is protected, now by wide range
Pressure gauge one measures the pressure oil pressure in extension pipe, beneficial to the high-pressure oil and low pressure oil measured on pipeline to be measured.
The utility model is further arranged to：The constriction includes being arranged on lengthening inside pipe wall and closes extension pipe
Baffle plate and sliding are connected to the movable block for lengthening inside pipe wall, and the baffle plate is set close to pressure gauge two, and the movable block will add
Long duct occlusion, the logical through hole of voltage supply power oil stream is offered on the movable block, pod apertures, the through hole are offered on the baffle plate
It is dislocatedly distributed with pod apertures, when movable block contradicts with baffle plate, the pod apertures are closed, and the extension pipe deviates from movable block
The side of baffle plate is provided with connecting plate, and the connecting plate is provided with extension spring, the one end of the extension spring away from connecting plate with
Movable block is fixedly connected.
By using above-mentioned technical proposal, in the case of pressure oil pressure is less, pressure oil passes through through hole and pod apertures
Measured for pressure gauge two, with the increase of pressure oil pressure, the pressure of pressure oil promotes movable block to be moved to baffle plate direction, until
Movable block and baffle plate contradict so that movable block closes the pod apertures on baffle plate, and baffle plate closes the through hole on movable block, limitation
Pressure oil flows to pressure gauge two, and extension spring will mobile block reset when pressure oil pressure reduces.
The utility model is further arranged to：The movable block is provided with the guide pipe extended to baffle plate, institute at through hole edge
State the fixing groove offered on baffle plate for guide pipe insertion.
By using above-mentioned technical proposal, guide pipe enters in fixing groove when movable block and baffle plate contradict, and reduces through hole
Interior pressure oil enters in the gap between movable block and baffle plate.
The utility model is further arranged to：The locating part includes being arranged in extension pipe and closing the closing of extension pipe
Plate and sliding are connected to the sliding block for lengthening inside pipe wall, and the closed plate is set close to pressure gauge two, and the closed plate edge lengthens
The axis of pipe offers the limbers one of taper, and the sliding block is provided with the plate of closing limbers one, opened up on the sliding block
There is the limbers two that some voltage supply power oil streams are crossed, the sliding block is provided with compression spring, the compression in the side towards closed plate
The one end of spring away from sliding block is fixed in closed plate.
By using above-mentioned technical proposal, when the pressure of pressure oil is in the range of pressure gauge two, pressure oil passes through water flowing
Hole two and limbers one measure for pressure gauge two, when the pressure increase of pressure oil, sliding block under the pressure effect of pressure oil to
Closed plate moves so that inserted link closes limbers one, and the pressure oil of high pressure is not measured in pressure gauge two, protects pressure gauge
Two, the compression spring flexible potential energy by compression in the process, sliding block is resetted beneficial to when pressure oil pressure reduces, entered
And the pressure oil of low pressure is measured beneficial to pressure gauge two.
The utility model is further arranged to：The sliding block is provided with the guide rod stretched into closed plate, the closed plate
On offer for guide rod movement chute.
By using above-mentioned technical proposal, guide rod is moved when sliding block moves in chute, and the movement to sliding block is played
Guide effect, limbers one is closed beneficial to inserted link.
The utility model is further arranged to：The inserted link outer wall is arranged with rubber blanket.
By using above-mentioned technical proposal, rubber blanket is reduced in when inserted link contradicts with the inwall of limbers one and limbers one
Gap between wall, reduce pressure oil by limbers one, and reduce the abrasion of inserted link.
The utility model is further arranged to：The extension pipe is provided with screen pack in the position being connected with connecting tube.
By using above-mentioned technical proposal, the setting of screen pack is reduced into the impurity in extension pipe, beneficial to locating part
Limitation lengthens the flowing of overpressure oil.
The utility model is further arranged to：The connecting tube is provided with pressure switch, the pressure switch connection
There is alarm.
By using above-mentioned technical proposal, pressure switch detects that the pressure in connecting tube exceedes the range of pressure gauge one
When, pressure switch sends signal now alarm equipment alarm, reminds the pressure in operator's connecting tube excessive.
Compared with prior art, the utility model has the advantages that：The pressure gauge one set on pipeline to be measured
For detecting the pressure of the pressure oil on pipeline to be measured, pressure gauge two is detected on pipeline to be measured also by extension pipe and connecting tube
Pressure, the range of pressure gauge two is less than the range of pressure gauge one, for accurately detecting the less pressure oil of pressure on pipeline to be measured,
When the pressure oil pressure on pipeline to be measured is more than the range of pressure gauge two, constriction lengthens the stream of overpressure oil by limiting
It is dynamic, protect pressure gauge two.
Brief description of the drawings
Fig. 1 is the structural representation of embodiment 1；
Fig. 2 is the structural representation for being used to embody constriction of embodiment 1；
Fig. 3 is the close-up schematic view in A portions in Fig. 2；
Fig. 4 is the structural representation of embodiment 2；
Fig. 5 is the structural representation for being used to embody closed plate of embodiment 2；
Fig. 6 is the structural representation for being used to embody sliding block of embodiment 2.
In figure, 1, pipeline to be measured；11st, connecting tube；111st, extension pipe；112nd, pressure gauge two；113rd, baffle plate；1131st, water conservancy diversion
Hole；1132nd, fixing groove；114th, movable block；1141st, through hole；1142nd, guide pipe；115th, connecting plate；1151st, extension spring；116、
Screen pack；117th, pressure switch；1171st, alarm；118th, closed plate；1181st, limbers one；1182nd, chute；119th, it is sliding
Block；1191st, plate；1192nd, limbers two；1193rd, compression spring；1194th, guide rod；1195th, rubber blanket；12nd, pressure gauge one.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing.
Embodiment 1：A kind of switching valve system for switching high-low pressure meter, referring to Figures 1 and 2, including passes through connecting tube 11
The pressure gauge 1 being arranged on pipeline 1 to be measured, when the pressure oil pressure on pipeline 1 to be measured is smaller, the pointer of pressure gauge 1
The angle of deflection is smaller and causes read untrue, therefore extension pipe 111 is communicated with connecting tube 11, and extension pipe 111 is remote
One end of connecting tube 11 is connected with pressure gauge 2 112, and the range of pressure gauge 2 112 is less than the range of pressure gauge 1, now treated
By the larger angle of the throw of pointer in driving pressure table 2 112, person easy to operation observes to read relatively low pressure oil on test tube road 1
Number, measurement is accurate, and when the pressure value in extension pipe 111 is more than the range of pressure gauge 2 112, extension pipe 111 is provided with control
The constriction that pressure oil is flowed in pressure gauge 2 112, now the pressure of pressure oil is measured by pressure gauge 1 in pipeline 1 to be measured,
Constriction protects pressure gauge 2 112, and the combined use of pressure gauge 1 and pressure gauge 2 112 is beneficial to measure on pipeline 1 to be measured
High-pressure oil and low pressure oil.
It is that reference picture 2 and Fig. 3, wherein constriction include being arranged on the inwall of extension pipe 111 and close the baffle plate of extension pipe 111
113 and sliding be connected to the movable block 114 of the inwall of extension pipe 111, baffle plate 113 is set close to pressure gauge 2 112, movable block
114 also close extension pipe 111, in order that obtaining pressure oil flows to pressure gauge 2 112, therefore offer confession on movable block 114
The through hole 1141 of pressure oil circulation, offers pod apertures 1131 on baffle plate 113, pressure oil flows to pod apertures by through hole 1141
In 1131, the pressure of pressure oil is detected beneficial to pressure gauge 2 112；When the pressure of pressure oil gradually increases above pressure gauge 2 112
Range when, through hole 1141 and pod apertures 1131 are dislocatedly distributed, beneficial to movable block 114 pressure oil pressure promote under with gear
Plate 113 contradicts and closes pod apertures 1131, limits pressure oil and flows to pressure gauge 2 112；When the pressure of pressure oil reduces,
Separated in order that obtaining movable block 114 and resetting with baffle plate 113, therefore extension pipe 111 deviates from the side of baffle plate 113 in movable block 114
Provided with connecting plate 115, connecting plate 115 is provided with extension spring 1151, extension spring 1151 one end and shifting away from connecting plate 115
Motion block 114 is fixedly connected.
Reference picture 3, in addition movable block 114 the edge of through hole 1141 be provided with to baffle plate 113 extend guide pipe 1142, baffle plate
The fixing groove 1132 being embedded in for guide pipe 1142 is offered on 113, guide pipe 1142 is when movable block 114 and baffle plate 113 contradict
Into in fixing groove 1132, the pressure oil reduced in through hole 1141 enters in the gap between movable block 114 and baffle plate 113.
Reference picture 2, when movable block 114 in the presence of pressure oil and extension spring 1151 it is past along the inwall of extension pipe 111
When returning mobile, extension pipe 111 is provided with screen pack 116 in the position being connected with connecting tube 11, the setting of screen pack 116 reduce into
Enter the impurity in extension pipe 111, beneficial to the flowing of pressure oil in locating part limitation extension pipe 111.
Reference picture 2, when the pressure of pressure oil increases above the range of pressure gauge 1, connecting tube 11 be provided with pressure after
Electrical equipment 117, pressure switch 117 are connected with alarm 1171, and pressure switch 117 sends signal control alarm 1171 and reported
It is alert, remind operator to adjust the pressure in pipeline 1 to be measured.
Specific operation process：When low pressure oil on pipeline 1 to be measured passes through pressure gauge 1 and pressure gauge 2 112, by
Pressure gauge 2 112 detects the pressure of pressure oil, improves the accuracy of reading, increases with the pressure of pressure oil, and pressure oil will
Movable block 114 is promoted to be moved to the direction of baffle plate 113, until the pressure value in extension pipe 111 is more than the range of pressure gauge 2 112,
Movable block 114 closes the pod apertures 1131 on baffle plate 113, limits pressure oil and flows to pressure gauge 2 112, protects pressure gauge
2 112, now extension spring 1151 be stretched and there is elastic force, pressure oil pressure oil pressure gauge 1 in extension pipe 111 is surveyed
Amount, pressure gauge 1 are used to measure the higher pressure oil of pressure, are gradually reduced with the pressure of pressure oil, extension spring 1151
Elastic force pulls movable block 114 to away from the direction of baffle plate 113, and then the pressure of pressure oil is measured beneficial to pressure gauge 2 112.
Embodiment 2：A kind of switching valve system for switching high-low pressure meter, is, reference picture with the difference of embodiment 1
4 and Fig. 5 and Fig. 6, locating part include being arranged in extension pipe 111 and closing the closed plate 118 of extension pipe 111 and sliding connection
In the sliding block 119 of the inwall of extension pipe 111, closed plate 118 is set close to pressure gauge 2 112, in order to flow to pressure beneficial to pressure oil
Power table 2 112, therefore axis of the closed plate 118 along extension pipe 111 offers the limbers 1 of taper, is set on sliding block 119
There is the plate 1191 of closing limbers 1, the limbers 2 1192 that some voltage supply power oil streams are crossed is offered on sliding block 119, can
So that limbers 2 1192 along the edge circumferential array of plate 1191, to be resetted, sliding block 119 is closed in direction for the ease of sliding block 119
The side of plate 118 is provided with compression spring 1193, and the one end of compression spring 1193 away from sliding block 119 is fixed in closed plate 118.
Reference picture 4 and Fig. 5 and Fig. 6, when inserted link closes limbers 1, inserted link outer wall is arranged with rubber blanket
1195, between rubber blanket 1195 is reduced when inserted link and the inwall of limbers 1 contradict between the inwall of limbers 1
Gap, reduce pressure oil by limbers 1, and reduce the abrasion of inserted link；When sliding block 119 moves along the inwall of extension pipe 111
When dynamic, sliding block 119 is provided with the guide rod 1194 stretched into closed plate 118, offers in closed plate 118 and is moved for guide rod 1194
Dynamic chute 1182, guide effect is played in movement when guide rod 1194 moves in chute 1182 to sliding block 119, beneficial to inserted link
Close limbers 1.
Specific operation process：Pressure oil promotes sliding block 119 in extension pipe 111 when pressure oil pressure is higher in pipeline 1 to be measured
Interior to be moved to closed plate 118, the now movement in chute 1182 of guide rod 1194 causes the parallel close closed plate of sliding block 119
118, compression spring 1193 is compressed and makes it have elastic force, until inserted link enters in limbers 1 pressure for limiting high pressure
Power oil stream protects pressure gauge 2 112, high-pressure oil make it that the throw of pointer of pressure gauge 1 is larger to pressure gauge 2 112
Angle, beneficial to reading, when the pressure of pressure oil is relatively low, the elastic force of compression spring 1,193 2 drives sliding block 119 to away from closing
Moving in the direction of plate 118 so that inserted link separates with limbers 1, flows at pressure gauge 2 112 and is detected beneficial to pressure oil,
It is now accurate on the read-around ratio pressure gauge 1 on pressure gauge 2 112, improve the accuracy of pressure oil measurement.
This specific embodiment is only that it is not to limitation of the present utility model, ability to explanation of the present utility model
Field technique personnel can make the modification of no creative contribution to the present embodiment as needed after this specification is read, but
As long as all protected in right of the present utility model by Patent Law.
Claims (8)
- Switch the switching valve system of high-low pressure meter 1. a kind of, including pass through connecting tube（11）It is arranged on pipeline to be measured（1）On Pressure gauge one（12）, it is characterized in that：The connecting tube（11）On be communicated with extension pipe（111）, the extension pipe（111）Away from even Adapter（11）One end be connected with pressure gauge two（112）, the pressure gauge two（112）Range be less than pressure gauge one（12）Amount Journey, work as extension pipe（111）Interior pressure value is more than pressure gauge two（112）Range when, the extension pipe（111）It is provided with control Pressure oil flows to pressure gauge two（112）Interior constriction.
- 2. the switching valve system of switching high-low pressure meter according to claim 1, it is characterized in that：The constriction includes setting Put in extension pipe（111）Inwall and close extension pipe（111）Baffle plate（113）And sliding is connected to extension pipe（111）It is interior The movable block of wall（114）, the baffle plate（113）Close to pressure gauge two（112）Set, the movable block（114）By extension pipe （111）Closing, the movable block（114）On offer the logical through hole of voltage supply power oil stream（1141）, the baffle plate（113）On open up There are pod apertures（1131）, the through hole（1141）With pod apertures（1131）It is dislocatedly distributed, works as movable block（114）With baffle plate（113） Pod apertures during conflict（1131）It is closed, the extension pipe（111）In movable block（114）Away from baffle plate（113）Side Provided with connecting plate（115）, the connecting plate（115）It is provided with extension spring（1151）, the extension spring（1151）Away from even Fishplate bar（115）One end and movable block（114）It is fixedly connected.
- 3. the switching valve system of switching high-low pressure meter according to claim 2, it is characterized in that：The movable block（114） In through hole（1141）Edge is provided with to baffle plate（113）The guide pipe of extension（1142）, the baffle plate（113）On offer for be oriented to Pipe（1142）Embedded fixing groove（1132）.
- 4. the switching valve system of switching high-low pressure meter according to claim 1, it is characterized in that：The locating part includes setting Put in extension pipe（111）It is interior and close extension pipe（111）Closed plate（118）And sliding is connected to extension pipe（111）Inwall Sliding block（119）, the closed plate（118）Close to pressure gauge two（112）Set, the closed plate（118）Along extension pipe（111） Axis offer the limbers one of taper（1181）, the sliding block（119）It is provided with closing limbers one（1181）Plate （1191）, the sliding block（119）On offer the limbers two that some voltage supply power oil streams are crossed（1192）, the sliding block（119） Towards closed plate（118）Side be provided with compression spring（1193）, the compression spring（1193）Away from sliding block（119）One end It is fixed on closed plate（118）On.
- 5. the switching valve system of switching high-low pressure meter according to claim 4, it is characterized in that：The sliding block（119）On Provided with stretching into closed plate（118）Interior guide rod（1194）, the closed plate（118）On offer for guide rod（1194）It is mobile Chute（1182）.
- 6. the switching valve system of switching high-low pressure meter according to claim 4, it is characterized in that：The inserted link outer wall is arranged There is rubber blanket（1195）.
- 7. the switching valve system of switching high-low pressure meter according to claim 1, it is characterized in that：The extension pipe（111） With connecting tube（11）The position of connection is provided with screen pack（116）.
- 8. the switching valve system of switching high-low pressure meter according to claim 1, it is characterized in that：The connecting tube（11）On Provided with pressure switch（117）, the pressure switch（117）It is connected with alarm（1171）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720302490.XU CN206816576U (en) | 2017-03-25 | 2017-03-25 | Switch the switching valve system of high-low pressure meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720302490.XU CN206816576U (en) | 2017-03-25 | 2017-03-25 | Switch the switching valve system of high-low pressure meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206816576U true CN206816576U (en) | 2017-12-29 |
Family
ID=60751778
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720302490.XU Expired - Fee Related CN206816576U (en) | 2017-03-25 | 2017-03-25 | Switch the switching valve system of high-low pressure meter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206816576U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108593188A (en) * | 2018-04-02 | 2018-09-28 | 哈尔滨工业大学 | A kind of pressure capsule system |
-
2017
- 2017-03-25 CN CN201720302490.XU patent/CN206816576U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108593188A (en) * | 2018-04-02 | 2018-09-28 | 哈尔滨工业大学 | A kind of pressure capsule system |
| CN108593188B (en) * | 2018-04-02 | 2020-06-12 | 哈尔滨工业大学 | Pressure sensing system |
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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: 20171229 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |