CN209606855U - A kind of self-check type magnetic controlled liquid level valve - Google Patents
A kind of self-check type magnetic controlled liquid level valve Download PDFInfo
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- CN209606855U CN209606855U CN201920694793.XU CN201920694793U CN209606855U CN 209606855 U CN209606855 U CN 209606855U CN 201920694793 U CN201920694793 U CN 201920694793U CN 209606855 U CN209606855 U CN 209606855U
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Abstract
The utility model relates to a kind of self-check type magnetic controlled liquid level valves, it is related to aviation fuels apparatus field, it includes gas chamber shell, air chamber cover, piston cartridge module, air-control device and self-checking unit, wherein air chamber cover is bolted to connection above gas chamber shell, piston cartridge module is bolted to connection below gas chamber shell, air-control device is set in the inner space of gas chamber shell, air chamber cover and piston cartridge module, and self-checking system is fixedly connected on piston cartridge module.In oil tank when oil inlet, the gas of vehicle-mounted gas source drives pneumatic bottom valve to open by self-check type magnetic controlled liquid level valve, makes oil inlet in oil tank, when aviation fuel reaches highest oil-filled liquid level safely in oil tank, self-check type magnetic controlled liquid level valve is closed, and pneumatic bottom valve is closed, fuel cut-off in oil tank.Self-checking unit can be detected to whether self-check type magnetic controlled liquid level valve can work normally.
Description
Technical field
The utility model relates to aviation fuels apparatus fields, more particularly, to a kind of self-test high liquid level magnet-controlled valve.
Background technique
Aircraft is the indispensable vehicles in modern civilization, and a flyer miles are consumed up to kilometers up to ten thousand
Up to a hundred tons of aviation fuels, aircraft generally supply aviation fuel using special pot type air fuel handing vehicle.
Fuel delivery device is into the oil storage tank of pot type tank service truck when oil transportation, and air is discharged simultaneously in oil tank, when oil inlet quantity reaches
Highest after oil-filled liquid level, needs to close inlet valve in time, prevents aviation fuel overflow and safety accident occurs, which needs liquid safely
Position valve is controlled, when reaching a certain height, liquid level valve automatically controls inlet valve and closes liquid level, when liquid level is lower than certain
Liquid level valve automatically controls inlet valve and opens when height.
Since aircraft is the valuable property of value, once great loss will be caused by accident occur, and aviation fuels belong to
Inflammable articles need to ensure the safety of oil supply equipment, therefore need higher requirement to the reliability of liquid level valve.
Utility model content
The purpose of the utility model is to provide a kind of self-check type magnetic controlled liquid level valves, can reach in detected liquid level certain high
It is automatically closed when spending.
The above-mentioned purpose of utility model of the utility model has the technical scheme that
A kind of self-check type magnetic controlled liquid level valve, including offering the gas chamber shell of gas chamber, air chamber cover, being fixedly connected on gas
Piston cartridge module below room housing is set to the indoor magnetic switch component of air chamber and is set to piston cylinder component internal simultaneously
Float component of the floating connection below gas chamber shell offers in the gas chamber shell and gas chamber is connected with vehicle-mounted gas source
The first air intake duct connect, and the outlet passageway being connect with gas control bottom valve, it is described floating when float component is by upward external force
Cartridge module moves up and controls the magnetic switch component and closes the first air intake duct in gas chamber shell.
By using above-mentioned technical proposal, when thering is liquid to enter in piston cartridge module, float component by buoyancy and to
Upper movement, the float component control magnetic switch module position moved up change, and close the first air intake duct on gas chamber shell, i.e.,
The self-check type magnetic controlled liquid level valve when liquid level detected reaches certain altitude is realized to be automatically closed.
The utility model is further arranged to: the gas chamber shell includes gas chamber sidewall and gas chamber shell bottom, the gas chamber shell
It is provided with intracavitary suction nozzle on bottom, the first air intake duct for being connected to intracavitary suction nozzle is provided on gas chamber shell bottom；The gas chamber
It is additionally provided with intracavitary outlet nozzle on shell bottom, the third gas off-take for being connected to intracavitary outlet nozzle is offered on gas chamber shell bottom；The gas chamber
The guide rod hole being located on the same line with intracavitary suction nozzle and intracavitary outlet nozzle is offered on shell bottom.
By using above-mentioned technical proposal, gas can enter gas chamber by suction nozzle out of first air intake duct transit chamber
In, also gas chamber can be discharged by outlet nozzle out of third gas off-take transit chamber in gas, and the top of float component can be from guide rod
Hole penetrates in gas chamber.
The utility model is further arranged to: the magnetic switch component includes the switch being fixedly connected in gas chamber shell
The side of body support frame, the side of the switch body for being set to switch body internal stent and penetrating switch body support frame and switch body is in
The switch body axis of horizontal attitude, the switch body and switch body axis are hinged, and the intracavitary suction nozzle and intracavitary outlet nozzle are from switch
It is pierced by the bracket bottom plate of body support frame, the both ends of switch body are located at the surface of intracavitary suction nozzle and intracavitary outlet nozzle.
By using above-mentioned technical proposal, the switch body can be fixed on switch body for rotatable by switch body axis
On bracket, the opening and closing to intracavitary suction nozzle or intracavitary outlet nozzle is can be realized in switch body rotation.
The utility model is further arranged to: the switch body includes
The shape of wraping plate, the wraping plate is strip, and the switch body axis is set on wraping plate, on the wraping plate symmetrically
Be provided with intracavitary outlet nozzle described in the face positioned at switch body axis two sides outlet valve and face described in intracavitary suction nozzle into
Gas valve, between the intake valve and intracavitary suction nozzle, there are gaps between outlet valve and intracavitary outlet nozzle.
Magnetic control pressing plate, the magnetic control pressing plate include magnet steel clip and spring retainer ring；Magnet steel clip side and wraping plate are close
One end of intake valve is fixedly connected, and the magnet steel clip is far from the magnet steel offered on one end of wraping plate with guide rod hole face
Hole, the magnet steel hole are embedded with the first magnet steel；The lower end of the magnet steel clip is arranged with magnet steel compressed spring, the magnet steel compression
One end of spring is contradicted in the lower surface of spring retainer ring, and the other end contradicts at gas chamber shell bottom.
By using above-mentioned technical proposal, intake valve on wraping plate can in control chamber suction nozzle opening and closing, outlet gas
Door can in control chamber outlet nozzle opening and closing；Magnet steel compressed spring can make magnetic control pressing plate and wraping plate elastic rotation, to control
The opening and closing of intracavitary suction nozzle and intracavitary outlet nozzle.
The utility model is further arranged to: the float guide set of top closure, institute are fixedly connected in the guide rod hole
The top for stating float guide set is protruded into gas chamber, and the top of the float component is inserted into the float guide set, with
The cooperation of first magnet steel magnetism.
By using above-mentioned technical proposal, float guide set can limit the upper pan position of float component, to limit floating drum
The distance between guide rod and the first magnet steel cooperate the two can magnetic.
The utility model is further arranged to: the float component mainly includes the floating drum of floating drum and locking opposite with floating drum
Guide rod, the upper end of the float guide are protruded into the float guide set, and the top of the float guide set is embedded with and first
Second magnet steel of the mutual magnetic attraction of magnet steel.
By using above-mentioned technical proposal, magnetic cooperation, control switch body are clockwise between the first magnet steel and the second magnet steel
Or rotate counterclockwise, thus in control chamber outlet nozzle and intracavitary suction nozzle opening and closing.
The utility model is further arranged to: the top half of the float guide laterally offers several pass through at equal intervals
Logical pin hole is inserted into pan position on limitation float guide according to the requirement of different safety levels height on the pin hole
Upper pan position on float guide of the first bayonet lock and limitation floating drum the second bayonet lock.
The utility model is further arranged to: the piston cartridge module includes the band neck being fixedly connected with gas chamber shell bottom end
Flange and the piston cylinder being fixedly connected with hubbed flange；The top of the barrel of piston cylinder at least offers an air equalizer opening,
Lower part at least offers a fuel feed hole.
By using above-mentioned technical proposal, fuel oil can enter in piston cartridge module from fuel feed hole, and air equalizer opening can
Air pressure in dummy piston cartridge module top, enables floating drum to move up.
The utility model is further arranged to: the self-check type magnetic controlled liquid level valve further includes self-checking unit, the self-checking unit
Include:
Cylinder, the cylinder are in vertical posture and the bottom for being fixedly connected on piston cartridge module；The piston rod of cylinder protrudes into
In piston cartridge module, and contradict in the bottom end of float component；
Tracheae, the tracheae are in vertical posture, and the bottom that one end connects cylinder is used to supply to cylinder, and the other end connects
It is connected to inspection gas source.
By using above-mentioned technical proposal, whether staff can detect self-check type magnetic controlled liquid level valve by self-checking unit
Can normal use, make first float component be in not by the state to buoyancy, then with self-test gas source into self-checking unit
Gas supply, gas enters in tracheae to be entered in cylinder by tracheae again, pushes float component to move up after cylinder intake, is simulated
Motion state of float component when by buoyancy.
The utility model is further arranged to: the self-checking unit further includes the cylinder connecting rod coaxial with float component,
The cylinder connecting rod includes the body of rod coaxially connected with the piston rod of cylinder and the one end far from cylinder that is fixedly connected on the body of rod
Pin, the pin, which can slide up and down, is plugged on the bottom end of float component.
By using above-mentioned technical proposal, cylinder connecting rod pin can limit the position of axle center when float component moves up and down
It sets.
In conclusion the advantageous effects of the utility model are as follows:
1. when having liquid to enter in piston cartridge module, float component is moved up by buoyancy, the floating drum group moved up
Part controls magnetic switch module position and changes, and closes the first air intake duct on gas chamber shell, that is, realizes in liquid detected
Self-check type magnetic controlled liquid level valve is automatically closed when position reaches certain altitude；
2. the switch body can be fixed on switch body support frame by switch body axis by rotatable, switch body rotation is
The opening and closing to intracavitary suction nozzle or intracavitary outlet nozzle can be achieved；
3. magnetic cooperation between the first magnet steel and the second magnet steel, control switch body is rotated clockwise or counterclockwise, to control
Make the opening and closing of intracavitary outlet nozzle and intracavitary suction nozzle；
4. staff can by self-checking unit detect self-check type magnetic controlled liquid level valve whether can normal use, make first
Float component is in not by the state to buoyancy, is then supplied with self-test gas source into self-checking unit, gas enters tracheae
In entered in cylinder by tracheae again, after cylinder intake push float component move up, simulate float component by upward
Motion state when buoyancy.
Detailed description of the invention
Fig. 1 is the schematic diagram of the section structure of self-check type magnetic controlled liquid level valve.Fig. 2 is the enlarged diagram of A in Fig. 1.Fig. 3 is certainly
Inspection type magnetic controlled liquid level valve overlooking structure diagram.Fig. 4 is the gas chamber shell the schematic diagram of the section structure of self-check type magnetic controlled liquid level valve.Figure
The air chamber cover cross-section structure structural schematic diagram of 5 self-check type magnetic controlled liquid level valves.The float component section of Fig. 6 self-check type magnetic controlled liquid level valve
Structural schematic diagram.The magnetic switch component structure diagram of Fig. 7 self-check type magnetic controlled liquid level valve.Fig. 8 self-check type magnetic controlled liquid level valve
Magnetic switch component overlooking structure diagram.The self-checking unit the schematic diagram of the section structure of Fig. 9 self-check type magnetic controlled liquid level valve.Figure 10 is certainly
The operating position of inspection type magnetic controlled liquid level valve is far from schematic diagram.
Appended drawing reference: 1, gas chamber shell；11, gas chamber sidewall；12, gas chamber shell bottom；121, intracavitary suction nozzle；122, first into
Air flue；123, intracavitary outlet nozzle；124, third gas off-take；125, exhaust-valve；126, guide rod hole；127, threaded connection hole；13, gas
Fluid chamber；14, first connecting portion；15, the first inlet suction port；
2, air chamber cover；21, lid；211, round boss；212, valve opening is set；213, venthole；214, the first gas off-take；
22, second connecting portion；23, the second bolt group；24, two-way valve；25, circlip for hole；26, air outlet adapter；
3, piston cartridge module；31, hubbed flange；311, the second air intake duct；32, piston cylinder；321, air equalizer opening；322,
Fuel feed hole；33, the first bolt group；34, the second inlet suction port；
4, magnetic switch component；41, switch body；411, wraping plate；4111, intake valve；4112, outlet valve；412, magnetic
Pressure control plate；4121, magnet steel clip；4122, spring retainer ring；413, magnet steel hole；414, the first magnet steel；415, banding slot；416,
Clamp bolt component；42, body support frame is switched；421, bracket bottom plate；422, rack side plate；43, switch body axis；44, magnet steel compresses
Spring；
5, float component；51, floating drum；52, float guide；521, the second magnet steel；522, pin hole；523, pin hole；53,
First bayonet lock；54, the second bayonet lock；55, bayonet lock washer；56, guide rod compressed spring；57, float guide set；571, first step；
572, second step；
6, self-checking unit；61, tracheae；62, cylinder；63, air cylinder base；64, cylinder connecting rod；641, the body of rod；642, it sells
Column；65, ferrule fitting；
7, oil tank vehicle tank；
8, pneumatic bottom valve.
Specific embodiment
The utility model is described in further detail below in conjunction with attached drawing.
It is a kind of self-check type magnetic controlled liquid level valve disclosed by the utility model, including gas chamber shell 1, gas with reference to Fig. 1 and Fig. 3
Chamber cap 2, piston cartridge module 3, air-control device and self-checking unit 6, wherein air chamber cover 2 is bolted to connection in gas chamber shell
1 top of body, piston cartridge module 3 are bolted to connection below gas chamber shell 1, and air-control device is set to gas chamber shell 1, gas
In the inner space of chamber cap 2 and piston cartridge module 3, self-checking unit 6 is fixedly connected on piston cartridge module 3.
With reference to Fig. 3 and Fig. 4, specifically, gas chamber shell 1 includes 11 bottom of gas chamber sidewall 11 and closed air chamber side wall of cylinder type
The gas chamber shell bottom 12 in portion, between gas chamber sidewall 11 and gas chamber shell bottom 12 formed gas chamber 13, gas chamber shell bottom 12 horizontally outward and
The first connecting portion 14 of " cap is along type " is formed to side extended configuration.Gas chamber sidewall 11, gas chamber shell bottom 12 and first connecting portion 14
Preferably integral structure.Gas chamber shell bottom 12 goes out relative to offering third in horizontal direction on the other side of first connecting portion 14
Air flue 124, exhaust-valve 125 is threaded on third gas off-take 124, and the transverse axis of exhaust-valve 125 passes through gas chamber shell bottom 12
Center location, on the side of first connecting portion 14 and with exhaust-valve 125 in 60 degree of angles position horizontal direction in offer
First air intake duct 122, outside one end of the first air intake duct 122 are provided with the first inlet suction port 15, the first inlet suction port 15 and row
It is in 45 degree of acute angles between empty valve 125.The center location of 12 upper surface of gas chamber shell bottom is vertically provided with intracavitary suction nozzle 121,
Intracavitary suction nozzle 121 is connected to the first air intake duct 122, and 12 upper surface of gas chamber shell bottom is also vertically provided with intracavitary outlet nozzle 123, intracavitary
Outlet nozzle 123 is connected with third gas off-take 124.Gas chamber shell bottom 12 is vertical close to the position of 14 side of first connecting portion and penetrates through
Ground offers band internal thread guide rod hole 126.It should be noted that intracavitary suction nozzle 121, intracavitary outlet nozzle 123 and guide rod
The central point at each comfortable gas chamber shell bottom 12 of 126 three of hole is conllinear.In addition, on gas chamber shell bottom 12 and being located at intracavitary suction nozzle 121
Position between intracavitary outlet nozzle 123 offers threaded connection hole 127.
With reference to Fig. 3 and Fig. 4, air chamber cover 2 includes lid 21 cylindrical, the bottom of lid 21 along the circumferential direction horizontal direction
Outer extended configuration forms the second connecting portion 22 of circular ring shape, and the outer diameter of second connecting portion 22 is identical as the outer diameter of gas chamber sidewall 11,
The ring width of second connecting portion 22 is identical as the wall thickness of gas chamber sidewall 11.It is seen in conjunction with Fig. 1,21 bottom surface of lid is provided with outer diameter and gas chamber
The identical round boss 211 of 11 internal diameter of side wall, lid 21 is embedded in gas chamber 13 by round boss 211, by gas chamber
The closure of openings of 13 tops, second connecting portion 22 pass through the second bolt group 23(referring to Fig.1) it is solid with the upper surface of gas chamber sidewall 11
Fixed connection.What the top center position of lid 21 offered circular in cross-section sets valve opening 212, set be equipped in valve opening 212 it is double
To valve 24, the top for setting the inner wall of valve opening 212 is provided with circlip for hole 25, is limited in two-way valve 24 and sets valve opening 212
It is internal.The middle position of round boss 211 offers and sets that valve opening 212 is connected in vertical venthole 213, venthole
213 is coaxial with intracavitary suction nozzle 121.The side horizontal of lid 21 inwardly offers and the first outlet for setting valve opening 212 and being connected
Road 214 is threaded with air outlet adapter 26 on first gas off-take 214.See that the self-check type magnetic controlled liquid level valve passes through in combination with Fig. 9
Air outlet adapter 26 connects gas pipeline and connect with pneumatic bottom valve 8, and pneumatic bottom valve 8 is mounted on the bottom oil inlet of tank truck, tool
Body principle is described in detail below.
With reference to Fig. 1 and Fig. 3, piston cartridge module 3 includes hubbed flange 31 and piston cylinder 32, and piston cylinder 32 is cylinder type tube,
One end of piston cylinder 32 offers external screw thread, and the neck of hubbed flange 31 offers internal screw thread, piston cylinder 32 and hubbed flange 31
It is connected by screw thread.Hubbed flange 31 is fixedly connected with the first connecting portion 14 of gas chamber shell 1 by the first bolt group 33.It is living
Plug tube 32 and guide rod hole 126 are coaxially disposed.Hubbed flange 31 opens up in horizontal direction in the lateral location for being symmetrical with exhaust-valve 128
There is the second air intake duct 311, the second air intake duct 311 is bent downward vertically inside hubbed flange 31, from 31 neck of hubbed flange
Lower surface is pierced by, and the second air intake duct 311 is fixedly installed the second inlet suction port 34 in side one end of hubbed flange 31.Piston cylinder
The top of 32 barrel along the circumferential direction equally spacedly opens up the air equalizer opening 321 there are four horizontal direction, and lower part is circumferentially
Direction equally spacedly opens up the fuel feed hole 322 there are four horizontal direction.
With reference to Fig. 1, air-control device includes being fixedly connected on the upper surface magnetic switch component 4 at gas chamber shell bottom 12 and being set to
Float component 5 inside piston cylinder 32.
With reference to Fig. 1 and Fig. 6, float component 5 includes floating drum 51, float guide 52, the first bayonet lock 53, the second bayonet lock 54, card
Sell washer 55, guide rod compressed spring 56 and float guide set 57.Specifically, float guide set 57 is top closure and outer wall
The round sleeve being stepped, from top to bottom end, there are two ring-shaped step, the step close to top is first step for setting
571, the step close to bottom end is second step 572.Wherein, the outer diameter of the part between first step 571 and second step 572
And guide rod hole 126(is identical with reference to the internal diameter of Fig. 3) and its length is identical as the length of guide rod hole 126, sets on the side wall of the part
It is equipped with the external screw thread to match with the internal screw thread of guide rod hole 126, float guide set 57 is screwed in guide rod hole 126 (with reference to figure
2) second step 572, is made to be connected to the position for limiting float guide 52 on the lower surface at gas chamber shell bottom 12, at this time first step
571 flush with the bottom surface of gas chamber 13.Gas is partially protruded between the first step 571 and its top of float guide set 57
In chamber 13.
Float guide 52 is the long round bar of metal, is set to inside piston cylinder 32 in vertical posture, float guide 52 it is upper
End is inserted into float guide set 57.
Floating drum 51 is the lightweight cylinder that outer diameter is less than 32 internal diameter of piston cylinder, is offered inside floating drum 51 along center axis thereof logical
Hole, floating drum 51 by through-hole be sheathed on float guide 52 lower part and it is opposite with the position of float guide 52 locking；Float guide
52 top and 12 elasticity of gas chamber shell bottom contradict.Specifically, the top half of float guide 52 is equidistant along its axis direction
The pin hole 522 for offering several lateral direction penetratings, be provided with the first bayonet lock 53 and the second bayonet lock 54 on float guide 52, first
Bayonet lock 53 and the second bayonet lock 54 can be inserted into the pin hole 522 of different location respectively according to the requirement of different liquid levels,
The position that float guide 52 is limited in the top pin hole 522 in first bayonet lock, 53 insertion position avoids float guide 52 excessive
It moves up；The pin hole 522 of second bayonet lock, 54 insertion position on the lower is to limit the position of floating drum 51, so that floating drum 51 exists
It is able to drive float guide 52 when floating to move upwards, by adjusting the position of the second bayonet lock 54, floating drum 51 can be adjusted and floating
Which type of liquid level is opposite latched position, that is, need could make floating drum 51 that float guide 52 be pushed to transport between cylinder guide rod 52
It is dynamic.Bayonet lock washer 55 is sheathed on float guide 52 and contacts at the upper surface of the first bayonet lock 53, and guide rod compressed spring 56 is arranged
It is covered between 57 on float guide 52 and positioned at bayonet lock washer 55 and float guide, the upper end of guide rod compressed spring 56 and second
The lower surface of step 572 contradicts, and the upper surface of lower end and bayonet lock washer 55 contradicts, and guide rod compressed spring 56 elastic can limit floating
The upper pan position of cylinder guide rod 52.Preferably, the first bayonet lock 53 and the second bayonet lock 54 are the split pin of R type.
With reference to Fig. 1 and Fig. 7, magnetic switch component 4 is set in gas chamber 13, and magnetic switch component 4 includes switch body
41, body support frame 42 and switch body axis 43 are switched.Switch body 41 and switch body support frame 42 are linked together by switch body axis 43, are opened
Closing 41 entirety of body can rotate along switch body axis 42.
With reference to Fig. 2 and Fig. 8, switching body support frame 42 includes the bracket bottom plate 421 of rectangle and the rack side plate of two rectangles
422, cross section is U-shaped, and bracket bottom plate 421 is an integral structure with two rack side plates 422, and bracket bottom plate 421 is fitted in
Gas chamber shell bottom 12, and locked by the threaded connection hole 127 at slotted pan head screw 128 and gas chamber shell bottom 12 at gas chamber shell bottom
12, intracavitary suction nozzle 121 and intracavitary outlet nozzle 123 are respectively pierced by since on bracket bottom plate 421.
Switch body 41 includes the wraping plate 411 that is fixed together and magnetic control pressing plate 412 and the first magnet steel 414 and the
Two magnet steel 521.
The horizontal inside for being set to switch body support frame 42 of wraping plate 411, shape are long strip shape structure, both ends of the surface
Be disposed as arc surface, on wraping plate 411 side by side offer perforative first wraping plate hole, the second wraping plate hole and along the vertical direction
Three wraping plate holes.Wherein, the second wraping plate hole is mounting hole 4113, which passes through for slotted pan head screw from outside, with
Convenient for bracket bottom plate 421 is locked on gas chamber shell bottom 12；First wraping plate hole is located at the surface of intracavitary outlet nozzle 123, in
Portion is fixedly installed outlet valve 4112；Third wraping plate hole is located at the surface of intracavitary suction nozzle 121, inside be fixedly installed
Intake valve 4111.When wraping plate 411 is horizontal attitude, between outlet valve 4112 and intracavitary outlet nozzle 123, intake valve
There is gap between 4111 and intracavitary suction nozzle 121.
It should be noted that line between intake valve 4111 and intake valve 4112 gas chamber shell bottom 12 projection with
Projection of the line at gas chamber shell bottom 12 between intracavitary suction nozzle 121 and intracavitary outlet nozzle 123 is overlapped.
Switch body axis 43 is provided with two groups, relatively penetrates from the two sides of switch body support frame 42 respectively and respectively and wraping plate
411 rotation connections.
With reference to Fig. 7 and Fig. 8, magnetic control pressing plate 412 is located at outside switch body support frame 42, including magnet steel clip 4121, magnet steel clip
4121 be long strip shape structure, and one end is fixedly connected on the one of close 411 hole of third wraping plate of wraping plate 411 by screw
End, the one end of magnet steel clip 4121 far from wraping plate 411 is vertical and what is penetrated through offers magnet steel hole 413,413 face gas chamber of magnet steel hole
The guide rod hole 126 at shell bottom 12, the first magnet steel 414 are embedded in magnet steel hole 413.Preferably, the centre of magnet steel clip 4121 opens up
There is banding slot 415, banding slot 415 is connected with magnet steel hole 413；Being horizontally disposed on magnet steel clip 4121 has clamp bolt component
416, clamp bolt component 416 extends transversely through two sides of magnet steel clip 4121, when the nut for tightening clamp bolt component 416
When, magnet steel hole 413 being capable of the first magnet steel of banding 414；The outside middle position of magnet steel clip 4121 extended configuration shape horizontally outward
At there is spring retainer ring 4122, the lower section of magnet steel clip 4121 is vertically arranged with magnet steel compressed spring 44, magnet steel compressed spring
44 upper end is abutted with the lower surface of spring retainer ring 4122 (with reference to Fig. 2), the first step 571 of lower end and float guide set 57
It abuts, and the top of float guide set 57 is covered in magnet steel compressed spring 44, magnet steel compressed spring 44 is in always
Compressive state.
With reference to Fig. 2, the top of float guide 52 is embedded with the second magnet steel 521, the second magnet steel 521 and the first magnetic above it
Steel 414 generates the magnetic force being mutually attracted.
When not entering into aviation fuel in piston cylinder 32, driving spring stop collar 4122 has one to magnet steel compressed spring 44 always
A trend rotated counterclockwise makes outlet valve 4112 abut to the top of intracavitary outlet nozzle 123, and intracavitary outlet nozzle 123 is closed,
Intake valve 4111 is separated with intracavitary suction nozzle 121 at this time, and intracavitary suction nozzle 121 is opened.
The working principle of self-test high liquid level magnet-controlled valve is described in detail below:
Self-test high liquid level magnet-controlled valve being installed on first above the oil tank of aviation tank truck, piston cylinder 32 protrudes into oil tank,
Then, by gas pipeline by the pneumatic bottom valve on the air outlet adapter 26 of self-test high liquid level magnet-controlled valve and tank truck bottom oil inlet
8 connections.The switch that pneumatic bottom valve 8 is used to control oil inlet is in opening when having air to pass through in pneumatic bottom valve 8 always
State, on the contrary it closes.
By the bottom oil inlet of oil pipeline connection air fuel handing vehicle, as the liquid level of aviation fuel in tank constantly rises, in tank
Air by when float component 5 in piston cylinder 32 not by aviation fuel to buoyancy when, magnetic switch component 4 is in magnet steel spring
Open intracavitary suction nozzle 124 under elastic force effect, the closing of intracavitary outlet nozzle 126, vehicle-mounted gas source passes through the first air intake duct 125 to gas
Gas supply in fluid chamber 13, the gas into gas chamber 13 enters two-way valve 24 from the venthole 213 of air chamber cover 2, then passes through
It is discharged with the first gas off-take 214 of 24 connection of two-way valve, the first gas off-take 214 is external to the pneumatic of tank truck by gas pipeline
Bottom valve 8, gas control pneumatic bottom valve 8 and open, oil inlet in oil tank.
When in piston cylinder 32 enter aviation fuel when, float guide 52 due to floating drum 51 rising and move up, the first magnet steel
414 and second magnet steel 521 be located proximate to, 521 the first magnet steel of magnetic attraction 414 of the second magnet steel, so that 41 edge of switch body
41 axis of switch body rotates clockwise, and magnetic control clip continues to compress magnet steel compressed spring 44, makes outlet valve 4112 and intracavitary outlet
The separation of mouth 126 contradicts intake valve 4111 and intracavitary suction nozzle 124, at this time the intracavitary opening of outlet nozzle 126, intracavitary air inlet
Mouth 124 is closed, and gas cannot be introduced into, and the pneumatic bottom valve 8 for being external in the first gas off-take 214 is closed, and stops oil inlet in oil tank.
With reference to Fig. 1 and Fig. 8, self-checking unit 6 includes tracheae 61, cylinder 62, air cylinder base 63 and cylinder connecting rod 64.Gas
Cylinder bottom seat 63 is the circular ring shape of horizontal attitude, is provided with internal screw thread on the inside of ring, air cylinder base 63 is bolted to connection in work
The bottom of plug tube 32；The side wall middle position of cylinder 62 is provided with the external screw thread to match with the internal screw thread of air cylinder base 63, gas
Cylinder 62 is connected in the inner ring of air cylinder base 63 by the way that screw thread is vertical, and the upper end of cylinder 62 is located inside piston cylinder 32,
The lower end of cylinder 62 is located at outside piston cylinder 32；Cylinder connecting rod 64 includes the body of rod 641 and the pin for being fixed on 641 upper surface of the body of rod
Column 642, the lower end of the body of rod 641 are bolted to connection in the upper surface of cylinder 62, and pin 642 is inserted into 52 lower end of float guide
Pin hole 523 in and can slide up and down, when float component 5 is not by buoyancy, pin 642 can be connected to pin hole
Upper surface inside 523.Tracheae 61 is long micropipe, is installed in vertical posture, the neck air flue of the upper end and hubbed flange 31
It is connected by screw thread, lower end is folded upward at into hook-type, and passes through lower surface and cylinder 62 phase of the ferrule fitting 65 from cylinder 62
Connection.
When using 6 self-test of self-checking unit, it is first shut off vehicle-mounted gas source and is in float component 5 not by buoyancy
Then state is supplied into device from the second inlet suction port 34 of hubbed flange 31 using self-test gas source, gas by second into
Air flue 311 enters in cylinder 62 to entering in tracheae 61, then by tracheae 61, pusher cylinder connecting rod 64 after 62 air inlet of cylinder
It moves up, and further the float component 5 being plugged on above 62 connecting rod of cylinder is pushed to move up, 52 top of float guide
Second magnet steel 521 attract top the first magnet steel 414 it is close, make switch body 41 rotate clockwise by intracavitary outlet nozzle 126 open,
Intracavitary suction nozzle 124 is closed, and gas is entered in pneumatic bottom valve 8 by self-check type magnetic controlled liquid level valve and controls pneumatic bottom valve 8 and beaten
It opens, the pneumatic opening of bottom valve 8 then illustrates that self-check type magnetic controlled liquid level valve works normally.
It is the preferred embodiment of the utility model, not limits the protection scope of the utility model according to this, therefore: Fan Yiben
The equivalence changes that structure, shape, the principle of utility model are done, should all be covered by within the protection scope of the utility model.
Claims (10)
1. a kind of self-check type magnetic controlled liquid level valve, it is characterised in that: gas chamber shell (1), gas including offering gas chamber (13)
Chamber cap (2), the piston cartridge module (3) being fixedly connected below gas chamber shell (1), the magnetic control being set in gas chamber (13) are opened
It closes component (4) and is set to internal simultaneously float component (5) of the floating connection below gas chamber shell (1) of piston cartridge module (3), institute
State and offer the first air intake duct (122) that gas chamber (13) is connected with vehicle-mounted gas source in gas chamber shell (1), and with gas
The outlet passageway of bottom valve (8) connection is controlled, when float component (5) is by upward external force, the float component (5) is moved up
And it controls the magnetic switch component (4) and closes the first air intake duct (122) in gas chamber shell (1).
2. self-check type magnetic controlled liquid level valve according to claim 1, it is characterised in that: the gas chamber shell (1) includes gas chamber
Side wall (11) and gas chamber shell bottom (12) are provided with intracavitary suction nozzle (121) on gas chamber shell bottom (12), gas chamber shell bottom
(12) the first air intake duct (122) for being connected to intracavitary suction nozzle (121) is provided on；Chamber is additionally provided on gas chamber shell bottom (12)
Interior outlet nozzle (123) offers the third gas off-take (124) for being connected to intracavitary outlet nozzle (123) on gas chamber shell bottom (12)；The gas
The guide rod hole being located on the same line with intracavitary suction nozzle (121) and intracavitary outlet nozzle (123) is offered on room shell bottom (12)
(126)。
3. self-check type magnetic controlled liquid level valve according to claim 2, it is characterised in that: the magnetic switch component (4) includes
The switch body support frame (42) being fixedly connected in gas chamber shell (1), the switch body (41) being set to inside switch body support frame (42)
And the switch body axis (43) in horizontal attitude of the side of the side and switch body (41) of penetrating switch body support frame (42), it is described
Hingedly, the intracavitary suction nozzle (121) and intracavitary outlet nozzle (123) are from switching body support frame for switch body (41) and switch body axis (43)
(42) it is pierced by bracket bottom plate (421), the both ends of switch body (41) are located at intracavitary suction nozzle (121) and intracavitary outlet nozzle
(123) surface.
4. self-check type magnetic controlled liquid level valve according to claim 3, it is characterised in that: the switch body (41) includes
The shape of wraping plate (411), the wraping plate (411) is strip, and the switch body axis (43) is set on wraping plate (411),
Going out for intracavitary outlet nozzle (123) described in the face positioned at switch body axis (43) two sides is symmetrically provided on the wraping plate (411)
The intake valve (4111) of intracavitary suction nozzle (121) described in gas valve (4112) and face, the intake valve (4111) and chamber
Between interior suction nozzle (121), there are gaps between outlet valve (4112) and intracavitary outlet nozzle (123)；
Magnetic control pressing plate (412), the magnetic control pressing plate (412) include magnet steel clip (4121) and spring retainer ring (4122)；Magnet steel
Clip (4121) side is fixedly connected with wraping plate (411) close to the one end of intake valve (4111), the magnet steel clip (4121)
It offers on one end far from wraping plate (411) and is embedded with the magnet steel hole (413) of guide rod hole (126) face, the magnet steel hole (413)
There are the first magnet steel (414)；The lower end of the magnet steel clip (4121) is arranged with magnet steel compressed spring (44), and the magnet steel compresses bullet
One end of spring (44) is contradicted in the lower surface of spring retainer ring (4122), and the other end contradicts at gas chamber shell bottom (12).
5. self-check type magnetic controlled liquid level valve according to claim 4, it is characterised in that: fixed in the guide rod hole (126) to connect
It is connected to the float guide set (57) of top closure, the top of the float guide set (57) is protruded into gas chamber (13), described
The top of float component (5) is inserted into the float guide set (57), to cooperate with the first magnet steel (414) magnetism.
6. self-check type magnetic controlled liquid level valve according to claim 5, it is characterised in that: the float component (5) mainly includes
Floating drum (51) and the opposite float guide (52) locked with floating drum (51), the floating drum is protruded into the upper end of the float guide (52)
In leader casing (57), the top of the float guide set (57) is embedded with second with the first magnet steel (414) mutually magnetic attraction
Magnet steel (521).
7. self-check type magnetic controlled liquid level valve according to claim 6, it is characterised in that: the upper half of the float guide (52)
Divide the pin hole (522) for laterally offering several perforations at equal intervals, according to the requirement of different safety levels height described
The first bayonet lock (53) of pan position and limitation floating drum (51) are led in floating drum in insertion limitation float guide (52) on pin hole (522)
The second bayonet lock (54) of upper pan position on bar.
8. self-check type magnetic controlled liquid level valve according to claim 1, it is characterised in that: the piston cartridge module (3) include with
The hubbed flange (31) that gas chamber shell (1) bottom end is fixedly connected and the piston cylinder (32) being fixedly connected with hubbed flange (31)；It is living
The top of the barrel of plug tube (32) at least offers an air equalizer opening (321), and lower part at least offers a fuel feed hole
(322)。
9. self-check type magnetic controlled liquid level valve according to any one of claims 1 to 8, it is characterised in that: the self-check type magnetic control liquid
Position valve further includes self-checking unit (6), and the self-checking unit (6) includes:
Cylinder (62), the cylinder (62) are in vertical posture and the bottom for being fixedly connected on piston cartridge module (3)；Cylinder (62)
Piston rod protrudes into piston cartridge module (3), and contradicts in the bottom end of float component (5)；
Tracheae (61), the tracheae (61) are in vertical posture, and the bottom that one end connects cylinder (62) is used for cylinder (62)
Gas supply, the other end connect self-test gas source.
10. self-check type magnetic controlled liquid level valve according to claim 9, it is characterised in that: the self-checking unit (6) further include with
The coaxial cylinder connecting rod (64) of float component (5), the cylinder connecting rod (64) include coaxial with the piston rod of cylinder (62)
The body of rod (641) of connection and the pin (642) for being fixedly connected on the one end of the body of rod far from cylinder, the pin (642) can be upper and lower
The bottom end for being plugged on float component (5) of sliding.
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| CN201920694793.XU CN209606855U (en) | 2019-05-15 | 2019-05-15 | A kind of self-check type magnetic controlled liquid level valve |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110119164A (en) * | 2019-05-15 | 2019-08-13 | 北京科瑞乐航空油料设备有限公司 | A kind of self-check type magnetic controlled liquid level valve |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110119164A (en) * | 2019-05-15 | 2019-08-13 | 北京科瑞乐航空油料设备有限公司 | A kind of self-check type magnetic controlled liquid level valve |
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