CN205246280U - Portable fluid pressure checker - Google Patents
Portable fluid pressure checker Download PDFInfo
- Publication number
- CN205246280U CN205246280U CN201521100466.5U CN201521100466U CN205246280U CN 205246280 U CN205246280 U CN 205246280U CN 201521100466 U CN201521100466 U CN 201521100466U CN 205246280 U CN205246280 U CN 205246280U
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- China
- Prior art keywords
- pressure
- liquid
- low
- piston
- valve
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B3/00—Intensifiers or fluid-pressure converters, e.g. pressure exchangers; Conveying pressure from one fluid system to another, without contact between the fluids
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L27/00—Testing or calibrating of apparatus for measuring fluid pressure
- G01L27/002—Calibrating, i.e. establishing true relation between transducer output value and value to be measured, zeroing, linearising or span error determination
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L27/00—Testing or calibrating of apparatus for measuring fluid pressure
Abstract
The utility model provides a portable fluid pressure checker, its have the base member with built -in have make the press pump of making that the press constructs, the micromatic setting that be fixed with liquid storage cylinder and to the pressure of pressure system go on finely tune is overlapped in the rear end of base member coaxially, be provided with back the liquid stop valve in the fluid pipe between the stock solution chamber of the play liquid of making press pump end and liquid storage cylinder, the play liquid of making the press pump hold and the pressure system between the fluid pipe in be provided with system's stop valve, be the pressure system pressure boost when closing back liquid stop valve, opening system stop valve, messenger's pressure system pressure release when opening back liquid stop valve and system's stop valve, front end at the base member is fixed with the instrument connecting seat, is formed with the liquid stream through -hole in the instrument connecting seat, and the system's pipeline in this liquid stream through -hole and the base member communicates, can be provided with back the liquid filter in the liquid stream through -hole with pressure fluid water conservancy diversion to instrument.
Description
Technical field
It is little, heavy that the utility model relates to be easy to carry on-the-spot use, compact conformation, volume of oneMeasure light portable liquid pressure checker, it belongs to pressure tool instrument check field. This is portableLiquid pressure checker can pressurize continuously and expeditiously and be pressurized to the cavity volume of different sizesElevated pressures, can manually carry out pressure adjusting and reach stable force value, can adapt to pressPower instrument and meter verification industry development moves towards the needs of field-checking pattern.
Background technology
Manometer all needs to force regularly to examine and determine, to determine the accuracy of gauge measurement.Traditional mode is examining and determine in laboratory after manometer dismounting. Along with industrial expansion,Equipment failure rate reduces, and shorten downtime, requires tested instrument to show under arms rapidlyField completes calibrating, and even some manometer directly carries out at impulse mouth cut-in pressure calibration equipmentDo not dismantle calibrating. Require the pressure validator can be rapidly for tested table provides required pressure, andControl, maintenance and adjusting to provided pressure size are provided.
Liquid medium is incompressible in macroscopic view, and fluid pressure is with respect to gas pressure, conventionally toolHave the feature that pressing speed is fast, security is good, this advantage shows particularly under high-pressure situationsObviously. Therefore liquid pressure checker has good application prospect.
Liquid pressure checker in the market, generally drives piston displacement by screw mechanismCarry out capacity pressurization, or adopt the forms such as the reciprocal pressurization of single stage piston depression bar pump. General handHydrodynamic press pump all separates with control micro-adjusting mechanism, and it is laggard that they are combined to form pressure validatorRow pressurization, this structural volume is larger, and efficiency is also very low, is not suitable for portablely, is also just not suitable forForm on-the-spot use equipment. Utilizing piston displacement to carry out in the checker of capacity pressurization, livePlug area determines the pressure size that checker finally provides. When piston area is large, feed flow pressurization speedDegree is fast, but higher pressure can not be provided; Piston area hour, fluid supply capacity is inadequate, needsCoordinate stop valve, after a feed flow of piston, with stop valve, pressure system is ended, treatPlunger shaft is opened stop valve after imbibition again, and feed flow pressurization again can be carried after so back and forthFor higher pressure, but such operational motion is loaded down with trivial details, and efficiency is low. In addition, general depression barPump is all independent design, meets industry pressurization and uses, and needs to increase in manometer verification industryAdd the parts such as stop valve, pressure fine-adjustment device, meter connector and carry out decomposition pressure check system, pass throughFluid pipe connects and is fixed together. Such structure is also feed flow pressurization fast conventionally, andRealize supercharging or fine setting by booster in parallel, there is good detectability. But thisChecker is because of each parts dispersion distribution, and volume and weight is all relatively large, is only suitable for laboratoryFixing use, is not suitable for portable mobile.
Therefore, need to provide a have lightweight, easy to carry, to make pressure energy power strong, stableHurry up, specificity is high, make the pressure validator of the features such as pressure pressure wide ranges, meet at present and pressThe demand of power instrument calibration.
Utility model content
The purpose of this utility model is to provide a kind of features simple structure, compactness, make press efficiency high,Pressure stability is reliable, integrates the portable liquid pressure checker of making pressure, liquid storage, pressure control,For pressure checking industry special equipment.
The portable liquid pressure checker that the utility model provides has matrix and is installed on this matrixMake press pump, make in press pump and be built-in with and make press mechanism at this, in the rear end of above-mentioned matrix coaxiallyThe overlapping micromatic setting that is fixed with liquid storage cylinder and the pressure of pressure system is carried out to high precision fine tuning;In the above-mentioned fluid pipe of making between the outlet end of press pump and the liquid storage cylinder of liquid storage cylinder, be provided with backLiquid stop valve, arranges in the fluid pipe between above-mentioned outlet end and the pressure system of making press pumpHave system stop valve, closing above-mentioned time liquid stop valve, while opening said system stop valve be onState pressure system supercharging, in the time of above-mentioned time liquid stop valve of unlatching and said system stop valve, make above-mentionedPressure system pressure release; Be fixed with Instrument connection seat at the front end of above-mentioned matrix, connect in above-mentioned instrumentIn joint chair, be formed with liquid opening, this liquid opening is communicated with the system pipeline in above-mentioned matrix,Fluid under pressure can be guided to instrument, in above-mentioned liquid opening, be provided with back liquid filter.
In above-mentioned portable liquid pressure checker, the above-mentioned press mechanism of making of making in press pump comprises lowPress piston cylinder, low-pressure piston, high pressure piston, with high pressure piston arrange all-in-one-piece afflux seat andValve body group, above-mentioned high pressure piston and above-mentioned afflux seat are formed as stair-stepping cylinder, at above-mentioned heightPress in piston and be provided with high pressure liquid stream pipeline, above-mentioned valve body group and liquid are set in above-mentioned afflux seatStream pipeline; Above-mentioned low-pressure piston is as high-pressure piston cylinder, and above-mentioned low-pressure piston and above-mentioned high pressure are livedFill in overlay configuration coaxially; Above-mentioned valve component comprises low pressure imbibition check valve, low pressure discharge opeing listTo valve, high pressure discharge opeing check valve and overflow valve, above-mentioned low pressure imbibition check valve is via input ductImbibition, the outlet end of above-mentioned low pressure discharge opeing check valve is connected with above-mentioned high pressure discharge opeing check valve, lowPress liquid in plunger shaft and high pressure piston chamber all via above-mentioned high pressure discharge opeing check valve to discharging tubeDischarge in road, and above-mentioned high pressure liquid stream pipeline is communicated with the outlet end of above-mentioned low pressure discharge opeing check valve, energyEnough above-mentioned low pressure discharge opeing check valve is used as to high pressure imbibition check valve, above-mentioned overflow valve and low pressure are livedPlug cylinder is communicated with, and reaches when setting value via overflow valve discharge opeing at low-pressure piston in-cylinder pressure.
In above-mentioned portable liquid pressure checker, be connected with depression bar at the above-mentioned press pump of making, pass throughAbove-mentioned depression bar is lifted/depresses makes the above-mentioned press pump of making make and press work.
In above-mentioned portable liquid pressure checker, be positioned at above-mentioned liquid storage cylinder above and be positioned atThe position of the below of above-mentioned depression bar is provided with handle.
In above-mentioned portable liquid pressure checker, connecting above-mentioned liquid storage cylinder and the above-mentioned press pump of makingThe fluid pipe of liquid feeding end in be provided with suction filter.
In above-mentioned portable liquid pressure checker, be provided with fluid injection group on the top of above-mentioned matrixPart, is provided with discharge opeing parts in the bottom of above-mentioned liquid storage cylinder.
In above-mentioned portable liquid pressure checker, above-mentioned micromatic setting comprises and above-mentioned liquid storage cylinderThe fine setting piston of arranged coaxial, drive the screw that above-mentioned fine setting piston moves and be positioned at above-mentionedThe outside vernier knob of liquid storage cylinder.
In above-mentioned portable liquid pressure checker, above-mentioned liquid storage cylinder is formed by transparent material.
In above-mentioned portable liquid pressure checker, the setting pressure of above-mentioned overflow valve is set asThis overflow valve is opened and when the liquid in low-pressure piston chamber is flowed out, can in low-pressure piston cylinder, be protectedHold certain pressure fluid.
In above-mentioned portable liquid pressure checker, the each parts that contact with liquid are by corrosion resistanceMaterial form.
By adopting above scheme, the pressurization/increasing of portable liquid pressure checker of the present utility modelPress mechanism and control the valve body of flow direction and all adopt the design of plug-in integrative-structure, liquid storage andMicromatic setting is also combined via matrix, install thus, dismantle, safeguard very convenient,And can make whole checker size little, simple in structure, conveniently place and carry. In addition, originallyThe press pump of making of utility model adopts such two-stage piston to make pressure mode, and pressure limit is wide, pressureHeight, flow is less, makes and presses efficiency high.
The press pump of making in portable liquid pressure checker of the present utility model is driven and is made by depression barPress, therefore simple and reliable for structure, user can easily realize continuous liquid supply and pressurizes and be pressurized to higherPressure. In addition, between depression bar and liquid storage cylinder, be equipped with handle, further improved this checkerComfort level while carrying.
In tested instrument is returned the pipeline of liquid, be provided with back liquid filter, can make thus liquid existAfter removing impurity, get back in liquid storage cylinder, and return the easy demolition and maintenance of liquid filter, can ensureOverall structure reliability. In addition by suction filter is set in input duct, in liquid storage cylinderLiquid enter and make in press pump again after being filtered by suction filter, thereby can prevent liquid storage cylinder liquidImpurity, sediment in body enter the pump housing and stop up feed liquid pipeline and valve body, cause that making press pump losesEffect.
By fluid injection assembly and discharge opeing assembly are set, can be via fluid injection assembly easily to liquid storageCylinder filling liquid and can be via the direct evacuation of liquid of discharge opeing screw.
By being set, micromatic setting can carry out high precision fine tuning to the pressure of pressure system.
In the time of the parts that adopt resistant material formation liquid stream to pass through, portable liquid of the present utility modelBody pressure validator can adapt to more liquid medium.
By forming liquid storage cylinder with transparent material, can observe easily liquid level in liquid storage cylinderWith liquid quality situation.
Portable liquid pressure checker of the present utility model is adapted at laboratory and uses and be carried into existingField is used these two kinds of manometer verification modes, can realize the not pressure of co-content, multiple rangePower instrument check.
Brief description of the drawings
Fig. 1 is the three-dimensional structure diagram of portable liquid pressure checker 200 of the present utility model.
Fig. 2 is the partly cut-away vertically of portable liquid pressure checker 200 of the present utility modelSide view.
Fig. 3 is the A-A cutaway view of Fig. 2.
Fig. 4 is the overlooking of partly cut-away of portable liquid pressure checker 200 of the present utility modelFigure.
Fig. 5 is the suction filter 61 in portable liquid pressure checker 200 of the present utility modelThe partial sectional view of part.
Fig. 6 takes out expression (band by making press pump 100 from portable liquid pressure checker 200Have the state of depression bar 57) front section view.
Fig. 7 is the B-B cutaway view of Fig. 6, and itself and Fig. 6 together represent to make press mechanism 20.
Reference numeral:
200 ... portable liquid pressure checker; 51 ... matrix; 52 ... return liquid stop valve;53 ... handle; 54 ... liquid storage cylinder; 55 ... micromatic setting; 57 ... depression bar; 58Handle; 59 ... fluid injection assembly; 37 ... system stop valve; 39 ... connecting rod; 100 ... makePress pump (continuous pressure supercharging liquid pump); 101 ... pump case; 102 ... pump case lid; 20Make press mechanism (continuous pressure booster body); 05 ... low-pressure piston cylinder; 06 ... low-pressure pistonCylinder cap; 07 ... high pressure liquid stream pipeline; 08 ... low-pressure piston (being also used as high-pressure piston cylinder);11 ... low pressure imbibition check valve; 14 ... high press juice check valve; 15 ... low pressure discharge opeing listTo valve; 03 ... overflow valve; 021 ... high pressure piston; 022 ... afflux seat; 221 ... theOne spout; 222 ... the second spout; 223 ... connecting pipe; 60 ... Instrument connectionSeat; 61 ... suction filter; 62 ... return liquid filter; 63 ... Instrument connection head; 64Exhaust bolt; 65 ... fluid injection screw; 66 ... fluid injection chamber; 67 ... liquid storage cylinder; 68Pump housing input duct; 69 ... pump housing Drainage pipe; 70 ... pressure system pipeline; 71Liquid opening; 72 ... back liquid pipeline; 73 ... fine setting piston; 74 ... screw; 75Discharge opeing screw; 76 ... fluid injection chamber lid; 77 ... liquid injecting pipeline; 78 ... fine setting chamber.
Detailed description of the invention
Below in conjunction with the structure of brief description of the drawings portable liquid pressure checker 200 of the present utility model.In explanation of the present utility model below, " supercharging " refers to and enter one on " pressurization " basisStep pressurization, " making pressure " is the general designation to " pressurization " and " supercharging ". In addition, " piston " refers toBe can move with respect to the inner surface of piston cylinder (having certain sealing) in piston cylinderPart, can be the structure that comprises piston head and piston rod, also can only there is piston rod.
As shown in Figure 1, this portable liquid pressure checker 200 mainly comprises: matrix 51, beSystem stop valve 37, time liquid stop valve 52, handle 53, liquid storage cylinder 54, micromatic setting 55, noteLiquid assembly 59, Instrument connection seat 60, suction filter 61, return liquid filter 62, make press pump100 (are built-in with and make press mechanism 20, be connected with depression bar 57 via connecting rod 39). Wherein make press pump100, system stop valve 37, time liquid stop valve 52, handle 53, liquid storage cylinder 54, micromatic setting55, fluid injection assembly 59, Instrument connection seat 60 are fixed on matrix 51, and suction filter 61 is installedIn matrix 51, return liquid filter 62 and be arranged in Instrument connection seat 60. , matrix 51As the connector of each parts, each fluid pipe, filter, note are cleverly distributing in insideSap cavities etc. are also provided with and make press pump etc., at outside connecting fluid flow-control element, liquid storage cylinder, pressureThe parts such as table Connection Block.
Left and right directions shown in Fig. 2 is defined as to the front and back of portable liquid pressure checker 200Direction. That is, in Fig. 1, instrument Connection Block 60 is installed on the front end of matrix 51, and liquid storage cylinder 54 is pacifiedBe loaded on the rear end of matrix 51. Left and right directions shown in Fig. 3 is defined as to portable fluid pressure schoolTest the left and right directions of device 200. , in Fig. 1, return liquid stop valve 52 and be installed on the left side of matrix 51Side, system stop valve 37 is installed on the right side of matrix 51.
As shown in Figure 2, Figure 3, Figure 4, be provided with fluid injection chamber 66, pump in the inside of matrix 51Body input duct 68, pump housing Drainage pipe 69, pressure system pipeline 70, back liquid pipeline 72.Connecting respectively and returning liquid stop valve 52 and system stop valve 37 in the left and right sides of matrix 51. ItsIn return liquid stop valve 52 and be positioned to connect and make the outlet end of press pump 100 and the fluid flow tube of liquid storage cylinder 67In road, for controlling the on/off between pump housing Drainage pipe 69 and back liquid pipeline 72. System is cutOnly valve 37 is positioned at the liquid that connects liquid pressure system (comprising micromatic setting 55) and make press pump body 100In stream pipeline, for controlling the on/off between pump housing Drainage pipe 69 and pressure system pipeline 70,Control thus fluid pressure system (comprising micromatic setting 55) and make being connected and breaking of press pump body 100Open. By closing back liquid stop valve 52, open system stop valve 37 can be pressure system supercharging;Return liquid stop valve 52 and system stop valve 37 can make liquid in system flow back to liquid storage cylinder by unlatching67, pressure system is carried out to pressure release; By shutdown system stop valve 37, can make pressure-applying unit withSystem pipeline (comprising micromatic setting 55) disconnects, and can reduce pressure-applying unit on the one hand system is pressedThe impact of power improves the stability of system pressure, reaches fast and stable, can protect on the other handWhile holding as elevated pressures, protect pressure-applying unit.
Fluid injection assembly 59 is arranged on the position of matrix 51 tops by rear side, mainly comprises fluid injection spiral shellNail 65 and exhaust bolt 64. Be formed with at fluid injection chamber lid 76 through hole passing for fluid injection screw 65,Liquid screw 65 covers 76 rear threads through fluid injection chamber and is fixed on matrix 51, via sealing ring by fluid injectionChamber lid 76 coordinates compression with matrix 51, forms the cavity of sealing. In fluid injection chamber 66 and fluid injection chamberBetween lid 76, fluid injection screw 65 and fluid injection chamber cover 76 between, sealing ring be set and form sealing.In fluid injection screw 65, be formed with the hole being screwed into for exhaust bolt 64, exhaust bolt 64 is tightened inThereby the sealing surface on fluid injection screw 65 and between them arranges sealing ring and forms sealing. WillWhen exhaust bolt 64 is unscrewed, can make fluid injection chamber 66 be communicated with atmosphere; When backing out exhaust bolt 64Time, can be from the screwed hole of fluid injection screw 65 by fluid injection chamber 66 to liquid storage cylinder 67, liquid storageCylinder 54 filling liquids. And, be provided with discharge opeing parts in the bottom of liquid storage cylinder 54 and (be hereinDischarge opeing screw 75), can be via the direct emptying liquid storage cylinder 54 of this discharge opeing screw 75, fluid injection chamber 66In liquid.
Liquid storage cylinder 54 and micromatic setting 55 be the overlapping rear end of being fixed on matrix 51 coaxially. Fine settingDevice 55 comprises the fine setting piston 73 that stretches in liquid storage cylinder, drives fine setting piston 73 in fine setting chamberThe screw 74 of 78 interior movements and be positioned at the vernier knob of the outside rear side of liquid storage cylinder 54. Micro-Adjust piston 73 and liquid storage cylinder 54 overlay configuration coaxially. At micromatic setting 55 and liquid storage cylinder 54Between and between liquid storage cylinder 54 and matrix 51, be provided with sealing ring, make trimming assembly, storageSealing respectively between fluid cylinder 54 and matrix 51, thus can guarantee at fluid injection chamber 66 downside notesLiquid pipeline 77 (Fig. 4 dotted line sign), back liquid pipeline 72 are communicated with liquid storage cylinder 67 respectively, andMaking to finely tune chamber 78 is communicated with pressure system pipeline 70. By making vernier knob rotation, by spiral shellRevolve leading screw 74 and drive fine setting piston 73 to move, thereby the pressure of pressure system is carried out to high accuracyFine setting.
Liquid storage cylinder 54 adopts transparent material, can observe easily the interior liquid level of liquid storage cylinder 54With liquid quality situation.
Be arranged in liquid storage cylinder 54 above and be positioned at make press pump body 100 depression bar 57 belowPosition be provided with handle 53, handle 53 along the top of liquid storage cylinder 67 be fixed on matrix 51 afterEnd face. This handle 53 be arranged so that carrying of compression pump is convenient comfortable.
Instrument connection seat 60 is fixed on the front end of matrix 51, and at two of Instrument connection seat 60End is equipped with Instrument connection head 63. In Instrument connection seat 60, be formed with liquid opening 71, liquid streamThrough hole is set to through Instrument connection head 63, and in matrix 51, is connected micromatic setting 55 and systemThe system pipeline of stop valve 37 is communicated with, thereby pressure fluid can be guided to the instrument such as Pressure gauge.In the path of liquid opening 71, the junction of pressure system pipeline 70 (for example with) is provided with backLiquid filter 62, the tested instrument liquid of backflow is pooled to go back to liquid filter outside. Liquid opening71 are communicated with the pressure system pipeline 70 in matrix 51 via returning liquid filter 62. While returning liquid,Liquid medium with impurity after the tested instrument of flowing through filters by returning liquid filter 62, removes impurityAfter flow back to liquid storage via pressure system pipeline 70, pump housing Drainage pipe 69, back liquid pipeline 72 againChamber. Return liquid filter 62 by setting, after the tested instrument that can prevent from flowing through with tested instrumentIn the liquid of impurity directly flow back in liquid storage cylinder 67 and pump and stop up the fluid flow tube in checkerRoad, the reliability of press pump inner valve body is made in impact. Return liquid filter 62 detachable, can be easilyClear up maintenance.
As shown in Figure 5, in pump housing input duct 68, be provided with suction filter 61, liquid storage cylinderLiquid in 67 enters and makes in press pump 100 after being filtered by suction filter 61, thereby can preventOnly impurity, the sediment in liquid storage cylinder liquid medium enters the pump housing and stops up feed liquid pipeline and valve body,Cause that making press pump lost efficacy.
As shown in Figure 6, be connected with depression bar 57 via connecting rod 39 making press pump 100. Specifically,Pump case lid 102 is formed as, to the shape of protruding with the opposition side of handle 58 described later, protrudingPosition has groove, forms porosely in the direction vertical with groove, and this is run through in the bindiny mechanisms such as bearing pinThereby the connecting rod 39 that one end is arranged in above-mentioned groove by hole is connected in pump case with hinged formLid 102. And the other end of connecting rod 39 and depression bar 57, make press mechanism 20 low-pressure piston (hold concurrentlyAs high-pressure piston cylinder) 08 be also connected by bindiny mechanisms such as bearing pins respectively with depression bar 57. Thus,By depression bar 57 lift/depress action, drive the low-pressure piston 08 of making press mechanism 20 to move,Make the pressure of making of press pump 100. And depression bar 57 is circumscribed with handle 58. Handle 58 can be putThe opplied moment of large depression bar 57, thus can easily realize Quick-pressing and the supercharging of making press pump body.
Main as in portable liquid pressure checker 200 of press pump 100 of making of the present utility modelPart, is plugged in the position, forward end of matrix 51. This makes press pump 100 low pressure can rapid fluid replacement,High pressure supercharging can reach elevated pressures, can realize like a cork pressurization supercharging rapidly, continuouslyTo elevated pressures, and the employing plug-in mounting form of having a style of one's own in structure, be convenient to quick assembling, easilyIn maintenance, repair.
Below the structure of making press pump 100 is described in detail.
Shown in Fig. 6, Fig. 7, in portable liquid pressure checker 200 of the present utility modelMake press pump 100 and be fixed on that in matrix 51, (after fixing, matrix 51 is as the pump case of making press pump 100101 use). By pump external shell, this makes pump case 101 and the pump case lid of press pump 100In the cavity of 102 upper openings that form, be provided with and make press mechanism 20. It is main that this makes press mechanism 20Comprise: cylinder cap 06, low-pressure piston cylinder 05, also, as the low-pressure piston 08 of high-pressure piston cylinder, establishesPut all-in-one-piece high pressure piston 021 and afflux seat 022, comprise low pressure imbibition check valve 11, lowPressure liquid check valve 15, high pressure discharge opeing check valve 14 these three check valves and overflow valves 03Valve body group. Wherein, what is called arranges all-in-one-piece high pressure piston 021 and afflux seat 022, refers toThey fit together after can separately forming and are integrated, also can be by being processed into one zeroPart is integrally formed.
Low-pressure piston cylinder 05 and afflux seat 022 are assemblied in by pump case in the mode being arranged above and below101 and the cavity that forms of pump case lid 102 in, afflux seat 022 is cylinder, it is assemblied in this skyThe bottom in chamber, match with the lower inner surface of this cavity in side and bottom surface; Low-pressure piston cylinder 05For column casing, be assemblied in this cavity in the top position of afflux seat 022, its side and this cavityUpper inside surface matches, and the upper surface of its bottom surface and afflux seat 022 joins. For with respect toCavity is realized sealing, has annular groove at the outer cylinder of low-pressure piston cylinder 05 and afflux seat 022,In annular groove, place sealing ring.
Cylinder cap 06 matches with the inner surface of this cavity, and has low-pressure piston 08 is passed throughThrough-hole section. Cylinder cap 06 is so that low-pressure piston 08 exposes compresses from the top down low in outside modePress piston cylinder 05.
Low-pressure piston 08 is disposed in low-pressure piston cylinder 05, thereby forms low-pressure piston chamber. ?The inner shaft of low-pressure piston 08 is to the endoporus being provided with as high-pressure piston cylinder, at low-pressure piston08 and high pressure piston 021 between form high pressure piston chamber. As shown in Figure 6, Figure 7, this practicalityNovel mesolow piston and high pressure piston overlay configuration, thus, low-pressure piston is alive with respect to low pressureWhen plug cylinder motion, high-pressure piston cylinder (being low-pressure piston) moves with respect to high pressure piston,Thereby can make more efficiently pressure. And, Fig. 6, Fig. 7 mesolow piston and high pressure pistonCoaxially, overall structure is more compact thus.
As shown in Figure 6, Figure 7, high pressure piston 021 is also cylinder, establishes with afflux seat 022 onePut, and the cylinder external diameter of afflux seat 022 is greater than the cylinder external diameter of high pressure piston 021, i.e. oneThe high pressure piston 021 and the afflux seat 022 that arrange become stair-stepping cylinder. High pressure piston 021Be arranged on the uncovered position (top in Fig. 1) of more leaning on above-mentioned cavity than afflux seat 022. ?High pressure piston 021 is being axially provided with from top to bottom the uncovered hollow space in upper end, by thisEmpty part forms high pressure liquid stream pipeline 07. The cross section of above-mentioned each cylinder can be circular, ovalThe various shapes that cooperatively interact such as shape, rectangle, square are not circular in the cross section of cylinderSituation under, the cylinder peripheral dimension of afflux seat 022 is greater than the cylinder periphery of high pressure piston 021Size, thus the high pressure piston being wholely set 021 and afflux seat 022 become stepped cylinder.
Be provided with the first annular liquid stream for imbibition in the lower surface of the cylinder of afflux seat 022Groove 221, is provided with the second annular liquid stream for discharge opeing at the middle part of the cylinder of afflux seat 022Groove 222. Pump housing input duct 68 is communicated with the first spout 221 of afflux seat 022, forTo afflux seat 022 feed fluid. In addition, pump housing Drainage pipe 69 and second of afflux seat 022Spout 222 is communicated with, for discharging liquid from afflux seat 022.
The following describes the detailed knot of each valve and fluid pipe in the afflux seat 022 of making press mechanism 20Structure. As shown in Figure 6, Figure 7, in afflux seat 022, be formed with multiple for the endoporus of each valve is installed,Each fluid pipe and each valve are integrally arranged in afflux seat 022, form a valve seat module.Low pressure imbibition check valve 11, low pressure discharge opeing check valve 15, overflow valve 03 and its respective accessory existThe axial setting of afflux seat 022, high pressure discharge opeing check valve 14 with afflux seat 022 axially just(in the time that afflux seat 022 is cylinder, radially arranging) is set in the direction of handing over. Low pressure imbibitionThe liquid feeding end of check valve 11 is communicated with the first spout 221 of afflux seat 022, can be via pump68 imbibitions of body input duct. The liquid feeding end of low pressure discharge opeing check valve 15 is communicated with low-pressure piston cylinder,For discharging the liquid in low-pressure piston cylinder. The outlet end of low pressure discharge opeing check valve 15 and high pressureBetween the liquid feeding end of liquid check valve 14, be connected via connecting pipe 223. In high pressure piston 021The entrance point (the lower end entrance in figure) of high pressure liquid stream pipeline 07 also with these connecting pipe 223 phasesConnect. , the liquid feeding end of the outlet end of low pressure discharge opeing check valve 15 and high pressure discharge opeing check valve 14Be connected, and the liquid feeding end of high pressure discharge opeing check valve 14 is communicated with high-pressure piston cylinder, therefore, low pressureThe liquid of cylinder and high pressure cylinder all flows via the second liquid of high pressure discharge opeing check valve 14 and afflux seat 022Groove 222 is to 69 discharge opeings of pump housing Drainage pipe; And the outlet end of low pressure discharge opeing check valve 15 andThe entrance point of the high pressure liquid stream pipeline 07 in high pressure piston 021 is connected, thereby can be by low pressureLiquid check valve 15 is simultaneously also as high pressure imbibition check valve. Thus, low pressure is passed through in low-pressure piston chamber11 imbibitions of imbibition check valve, low pressure discharge opeing check valve 15 is passed through from low-pressure piston in high pressure piston chamberCylinder imbibition. In addition, high pressure discharge opeing check valve 14 is connected with pump housing Drainage pipe 69, Neng GoujinRow discharge opeing. The liquid feeding end of overflow valve 03 is communicated with low-pressure piston chamber, at low-pressure piston cavity pressureWhile reaching setting value, via overflow valve 03 discharge opeing, enter the first spout 221.
By the above-mentioned press pump 100 of making is assemblied in matrix 51, and pacify with respect to matrix 51Load onto system stop valve 37, time liquid stop valve 52, handle 53, liquid storage cylinder 54, the fine setting statedDevice 55, depression bar 57, fluid injection assembly 59, Instrument connection seat 60, suction filter 61, returnLiquid filters 62 etc., form portable liquid pressure checker 200 of the present utility model.
As mentioned above, portable liquid pressure checker 200 of the present utility model make press pump 100The overlapping placement of middle two-stage piston, and each check valve, overflow valve centralized configuration, therefore have heightIntegrated advantage, can form plug-in mounting structure, and the scope of application is wider. And, pipe designTime low pressure discharge opeing check valve is also used as to high pressure imbibition check valve, thus, can make this superchargerStructure saves an imbibition check valve on the whole, and fluid pipe is simplified, and makes machine simultaneouslyThe difficulty of processing of structure is minimized, maintainability is improved, and the inspection of pressure system becomes with maintenanceObtain simpler.
The action of portable liquid pressure checker 200 of the present utility model is below described. Mainly sayBrightly closing back liquid stop valve 52, open system stop valve 37, utilizing and make press pump body 100 for pressingThe making when supercharging of power system presses work.
As shown in phantom in Figure 6, hold handle 58, depression bar 57 is upwards lifted, carry out imbibitionProcess. That is, low-pressure piston (being high-pressure piston cylinder) 08 moves upward, and other parts are fixing notMoving, it is large that the volume in low-pressure piston chamber and high pressure piston chamber becomes, low-pressure piston chamber and high pressure piston chamberBecome negative pressure, low-pressure piston chamber is by 11 imbibitions of low pressure imbibition check valve, and high pressure piston chamber can lead toToo low pressure liquid check valve 15 from low pressure (LP) cylinder via 07 imbibition of high pressure liquid stream pipeline, but due to heightPress piston cross-section size restrictions, high pressure piston cavity volume is less, forms vacuum scarce capacity, heightPress plunger shaft conventionally can not be full of liquid, liquid full condition is different according to each stroke.
After imbibition process, depression bar 57 is pressed downwards, low-pressure piston 08 is to making low-pressure pistonThe direction motion that chamber and high pressure piston cavity volume diminish, carries out the process for the fluid infusion of high pressure piston chamber.Fluid pressure in low-pressure piston cylinder is higher than the interior fluid pressure of pump housing input duct 68, low pressure imbibitionCheck valve 11 is closed. Be greater than high pressure piston chamber at pressing action initial period low-pressure piston cavity pressureIn the stroke of pressure, in low-pressure piston cylinder liquid by low pressure discharge opeing check valve through connecting pipe 223Enter high pressure piston chamber with high pressure liquid stream pipeline 07, make the quick liquid make-up in high pressure piston chamber, heightPress the imbibition of plunger shaft secondary.
High pressure piston chamber liquid is full of rear continuation when depression bar 57 is pressed downwards, enters pressure process,The volume in compression and low pressure plunger shaft and high pressure piston chamber, low pressure discharge opeing check valve 15, high pressure discharge opeingCheck valve 14 is opened, and the liquid in low-pressure piston chamber, high pressure piston chamber converges in connecting pipe 223Poly-, enter pump housing Drainage pipe 69 via high pressure discharge opeing check valve 14.
Repeatedly carry out the action of above-mentioned imbibition, high-pressure piston cylinder fluid infusion and pressurization, until discharge opeing is pressedPower reaches the setting pressure (spring force) of overflow valve 03. The spring force of this overflow valve 03 is set asOpen at overflow valve, while making the liquid outflow in low-pressure piston chamber, can in low-pressure piston cylinder, protectHold certain pressure fluid (this pressure equals the opening pressure of overflow valve).
After the fluid pressure in pressure chamber reaches overflow valve spring setting pressure, low-pressure pistonIn cylinder, liquid also reaches relief valve set pressure, in the time that depression bar 57 is further pressed downwards, entersEnter pressurization. Be further motion downwards of low-pressure piston (high-pressure piston cylinder) 08, make low pressureThe volume in plunger shaft and high pressure piston chamber diminishes, and the pressure forming in high pressure cylinder is greater than in low pressure (LP) cylinderThe pressure forming, low pressure discharge opeing check valve 15 is closed, the overflow valve 03 being communicated with low-pressure piston cylinderOpen, the liquid in low-pressure piston chamber flows back to pump housing input duct 68, in low-pressure piston cylinder, keepsThere is the liquid with the pressure of the setting pressure balance of overflow valve. High-pressure piston cylinder independent role andContinue pressurization, reach thus the high pressure of fluid pressure reaching than pressure process, realize and increasingPress. Highly pressurised liquid is discharged from high pressure discharge opeing check valve.
In the time having carried out the high pressure that still can not reach predetermined after supercharging action, repeat imbibition,High-pressure piston cylinder fluid infusion, pressurization and supercharging action, until discharge opeing pressure reaches, requirement is pressurized toPredetermined pressure.
The pressurization/supercharging of discharging from pump housing Drainage pipe 69, liquid is via pressure system pipeline 70Supply with to pressure system. In the time opening back liquid stop valve 52 and system stop valve 37, in systemLiquid is for example flowed through after tested instrument with the liquid of impurity, filters and removes through discharge opeing filter 62After impurity, flow back to via pressure system pipeline 70, pump housing Drainage pipe 69, back liquid pipeline 72Liquid storage cylinder 67, carries out pressure release to pressure system. In the time of shutdown system stop valve 37, pressure-applying unitAnd between system pipeline, disconnect, can reduce pump inner assembly the impact of system pressure is improved to systemThe stability of pressure, reaches fast and stable, and can protect and make press pump in the time that system pressure is higher.
As mentioned above, the pressurization/supercharging of portable liquid pressure checker of the present utility model and controlThe valve body of controlling flow direction all adopts the design of plug-in integrative-structure, also warp of liquid storage and micromatic settingCombined by matrix, install thus, dismantle, safeguard very convenient, and can make wholeChecker size is little, simple in structure, conveniently place and carry. Wherein, fine setting piston is placed in storageIn fluid cylinder and with the coaxial overlapping installation of liquid storage cylinder, can effectively utilize space thus, also can simultaneouslyThe structure stressed support of pressurizeing as a whole. In addition, by adopting the press pump of making of the present utility modelSuch two-stage piston is made pressure mode, and pressure limit is wide, and when low-pressure, flow is large; High pressureTime, flow is less, makes and presses efficiency high.
The press pump of making in portable liquid pressure checker of the present utility model is driven and is made by depression barPress, the connecting rod being connected with depression bar is fixed on pump case lid with chain connection form, therefore structure letterSingle reliable. Can amplify the right opplied moment of depression bar by connecting handle, user can easily realizeContinuous liquid supply pressurizes and is pressurized to elevated pressures. In addition, between depression bar and liquid storage cylinder, be equipped with and carryHand, has further improved comfort level when this checker carries.
In tested instrument is returned the pipeline of liquid, be provided with back liquid filter, can make thus liquid existAfter removing impurity, get back in liquid storage cylinder, and return the easy demolition and maintenance of liquid filter, can ensureOverall structure reliability.
In the time of the parts that adopt resistant material formation liquid stream to pass through, portable liquid of the present utility modelBody pressure validator can adapt to more liquid medium.
Industrial utilizability
According to portable liquid pressure checker of the present utility model, adopt pressure lever type continuous pressure to increaseSqueeze pump, as main potential source, adopts integrated structure design pattern; Can be different big or small pressureThat cavity volume provides is efficient, the medium pressure liquid of wide pressure limit; Meet portable, laboratory is multipleEnvironment uses, and has filled up manometer verification industry and move towards the needs of field-checking new development.
Claims (10)
1. a portable liquid pressure checker, the pressure of making that it has matrix and is installed on this matrixPump, makes in press pump and is built-in with and makes press mechanism at this, and the feature of this portable liquid pressure checker existsIn:
At the rear end of described matrix overlapping liquid storage cylinder and the pressure to pressure system of being fixed with coaxiallyCarry out the micromatic setting of high precision fine tuning;
In the described fluid pipe of making between the outlet end of press pump and the liquid storage cylinder of liquid storage cylinder, arrangeThere is back liquid stop valve, in the fluid pipe between described outlet end and the pressure system of making press pumpBe provided with system stop valve, in the time closing described time liquid stop valve, open described system stop valveFor described pressure system supercharging, in the time opening described time liquid stop valve and described system stop valve, makeDescribed pressure system pressure release;
Be fixed with Instrument connection seat at the front end of described matrix, in described Instrument connection seat, formHave liquid opening, this liquid opening is communicated with the system pipeline in described matrix, can be by pressurizationLiquid guide flow, to instrument, is provided with back liquid filter in described liquid opening.
2. portable liquid pressure checker as claimed in claim 1, is characterized in that:
Described make in press pump make press mechanism comprise low-pressure piston cylinder, low-pressure piston, high pressure piston,With high pressure piston, all-in-one-piece afflux seat and valve body group are set, described high pressure piston and described affluxSeat is formed as stair-stepping cylinder, is provided with high pressure liquid stream pipeline in described high pressure piston,Described valve body group and fluid pipe are set in described afflux seat;
Described low-pressure piston is as high-pressure piston cylinder, and described low-pressure piston and described high pressure piston are sameAxle ground overlay configuration;
Described valve body group comprises low pressure imbibition check valve, low pressure discharge opeing check valve, high pressure discharge opeing listTo valve and overflow valve, described low pressure imbibition check valve is via input duct imbibition, described low pressureThe outlet end of liquid check valve is connected with described high pressure discharge opeing check valve, and low-pressure piston chamber and high pressure are livedLiquid in plug chamber is all discharged to Drainage pipe via described high pressure discharge opeing check valve, described high pressureFluid pipe is communicated with the outlet end of described low pressure discharge opeing check valve, can be by described low pressure discharge opeingCheck valve is as high pressure imbibition check valve, and described overflow valve is communicated with low-pressure piston cylinder, in low pressurePiston cylinder internal pressure reaches while setting value via overflow valve discharge opeing.
3. portable liquid pressure checker as claimed in claim 1 or 2, is characterized in that:
Be connected with depression bar at the described press pump of making, make pressure by described depression bar being lifted/depresses described in makingPump is made and is pressed work.
4. portable liquid pressure checker as claimed in claim 3, is characterized in that:
Be positioned at described liquid storage cylinder above and be positioned at described depression bar below position be provided with and carryHand.
5. portable liquid pressure checker as claimed in claim 1 or 2, is characterized in that:
Connect described liquid storage cylinder with described in be provided with suction in making the fluid pipe of liquid feeding end of press pumpLiquid filter.
6. portable liquid pressure checker as claimed in claim 1 or 2, is characterized in that:
Be provided with fluid injection assembly on the top of described matrix, be provided with in the bottom of described liquid storage cylinderDischarge opeing parts.
7. portable liquid pressure checker as claimed in claim 1 or 2, is characterized in that:
Described micromatic setting comprises with the fine setting piston of described liquid storage cylinder arranged coaxial, drive described inThe screw that fine setting piston moves and the outside vernier knob that is positioned at described liquid storage cylinder.
8. portable liquid pressure checker as claimed in claim 1 or 2, is characterized in that:
Described liquid storage cylinder is formed by transparent material.
9. portable liquid pressure checker as claimed in claim 2, is characterized in that:
The setting pressure of described overflow valve is set as opening and making low-pressure piston chamber at this overflow valveWhen liquid flows out, can in low-pressure piston cylinder, keep certain pressure fluid.
10. portable liquid pressure checker as claimed in claim 1 or 2, is characterized in that:
The each parts that contact with liquid are made up of the material of corrosion resistance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521100466.5U CN205246280U (en) | 2015-07-15 | 2015-12-24 | Portable fluid pressure checker |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2015104165972 | 2015-07-15 | ||
| CN201510416597 | 2015-07-15 | ||
| CN201521100466.5U CN205246280U (en) | 2015-07-15 | 2015-12-24 | Portable fluid pressure checker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205246280U true CN205246280U (en) | 2016-05-18 |
Family
ID=55468985
Family Applications (5)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510989795.8A Active CN105403360B (en) | 2015-07-15 | 2015-12-24 | Portable liquid pressure checker |
| CN201521100289.0U Active CN205384115U (en) | 2015-07-15 | 2015-12-24 | Pressure boost liquid pump in succession pressurizes |
| CN201521097472.XU Withdrawn - After Issue CN205533470U (en) | 2015-07-15 | 2015-12-24 | Liquid booster mechanism that pressurizes in succession |
| CN201510992657.5A Active CN105443457B (en) | 2015-07-15 | 2015-12-24 | Continuous liquid pressurizing mechanism and liquid pressure producing method realized by using same |
| CN201521100466.5U Withdrawn - After Issue CN205246280U (en) | 2015-07-15 | 2015-12-24 | Portable fluid pressure checker |
Family Applications Before (4)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510989795.8A Active CN105403360B (en) | 2015-07-15 | 2015-12-24 | Portable liquid pressure checker |
| CN201521100289.0U Active CN205384115U (en) | 2015-07-15 | 2015-12-24 | Pressure boost liquid pump in succession pressurizes |
| CN201521097472.XU Withdrawn - After Issue CN205533470U (en) | 2015-07-15 | 2015-12-24 | Liquid booster mechanism that pressurizes in succession |
| CN201510992657.5A Active CN105443457B (en) | 2015-07-15 | 2015-12-24 | Continuous liquid pressurizing mechanism and liquid pressure producing method realized by using same |
Country Status (1)
| Country | Link |
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| CN (5) | CN105403360B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105403360A (en) * | 2015-07-15 | 2016-03-16 | 北京康斯特仪表科技股份有限公司 | Portable liquid pressure calibrator |
| CN113916443A (en) * | 2021-10-08 | 2022-01-11 | 安徽科技学院 | Air pressure sensor detection device |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102124011B1 (en) * | 2019-12-17 | 2020-06-17 | 주식회사 피디케이 | Portable test device for pressure calibration |
| TWI753722B (en) * | 2020-12-25 | 2022-01-21 | 財團法人工業技術研究院 | Pressure sensor calibrating system |
| CN113029434B (en) * | 2021-03-09 | 2022-07-15 | 江南大学 | Control method of pressure control system of liquid medium for measuring precision detection of pressure instrument |
| CN114689238A (en) * | 2021-12-30 | 2022-07-01 | 山东省计量科学研究院 | High-pressure self-cleaning table type hydraulic source |
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| US3832851A (en) * | 1972-11-03 | 1974-09-03 | Hydro Stack Mfg Corp | Hydraulic actuator |
| CN2055596U (en) * | 1989-05-03 | 1990-04-04 | 徐州市标准计量技术开发所 | Hand boosting checker for pressure gauge |
| CN2835973Y (en) * | 2005-11-24 | 2006-11-08 | 北京康斯特仪表科技有限公司 | High hydraulic pressure tester |
| CN2835972Y (en) * | 2005-11-24 | 2006-11-08 | 北京康斯特仪表科技有限公司 | Medium hydraulic pressure tester |
| CN2835643Y (en) * | 2005-11-24 | 2006-11-08 | 北京康斯特仪表科技有限公司 | Hydraulic pump |
| KR100706857B1 (en) * | 2006-11-28 | 2007-04-13 | 주식회사 피디케이 | Apparatus for controlling pressure |
| CN201034786Y (en) * | 2007-04-19 | 2008-03-12 | 北京康斯特仪表科技有限公司 | Handhold type gas pressure calibrator |
| CN201322675Y (en) * | 2008-10-17 | 2009-10-07 | 北京康斯特仪表科技股份有限公司 | Handheld positive and negative liquid pressure checker |
| CN201269794Y (en) * | 2008-10-21 | 2009-07-08 | 北京康斯特仪表科技股份有限公司 | Handhold air pressure checker |
| CN202073854U (en) * | 2011-03-29 | 2011-12-14 | 佛山市思豪液压机械有限公司 | Pressure cylinder of hydraulic expansion machine |
| DE102012001403A1 (en) * | 2012-01-26 | 2013-08-01 | Porep Gmbh | Device for calibrating pressure sensors |
| NL2010455C2 (en) * | 2013-03-14 | 2014-09-16 | Glind Metrology B V | Hydraulic pressure calibrator and calibration method. |
| CN103233876B (en) * | 2013-04-09 | 2015-11-18 | 北京康斯特仪表科技股份有限公司 | Returning type coaxial gas suction booster and gas make pressure method |
| CN103256201B (en) * | 2013-04-09 | 2016-04-27 | 北京康斯特仪表科技股份有限公司 | Coaxial motive liquid booster body and gas boosting method in the same way |
| RU136569U1 (en) * | 2013-09-06 | 2014-01-10 | Александр Александрович Терехин | DEVICE FOR TESTING AND CALIBRATING PRESSURE METERS |
| CN203770255U (en) * | 2014-04-21 | 2014-08-13 | 俞祖文 | Pneumatic-hydraulic pressurization cylinder |
| CN105403360B (en) * | 2015-07-15 | 2018-08-17 | 北京康斯特仪表科技股份有限公司 | Portable liquid pressure checker |
-
2015
- 2015-12-24 CN CN201510989795.8A patent/CN105403360B/en active Active
- 2015-12-24 CN CN201521100289.0U patent/CN205384115U/en active Active
- 2015-12-24 CN CN201521097472.XU patent/CN205533470U/en not_active Withdrawn - After Issue
- 2015-12-24 CN CN201510992657.5A patent/CN105443457B/en active Active
- 2015-12-24 CN CN201521100466.5U patent/CN205246280U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105403360A (en) * | 2015-07-15 | 2016-03-16 | 北京康斯特仪表科技股份有限公司 | Portable liquid pressure calibrator |
| CN105403360B (en) * | 2015-07-15 | 2018-08-17 | 北京康斯特仪表科技股份有限公司 | Portable liquid pressure checker |
| CN113916443A (en) * | 2021-10-08 | 2022-01-11 | 安徽科技学院 | Air pressure sensor detection device |
| CN113916443B (en) * | 2021-10-08 | 2023-05-16 | 安徽科技学院 | Air pressure sensor detection device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105443457A (en) | 2016-03-30 |
| CN105403360A (en) | 2016-03-16 |
| CN105443457B (en) | 2017-04-26 |
| CN205384115U (en) | 2016-07-13 |
| CN205533470U (en) | 2016-08-31 |
| CN105403360B (en) | 2018-08-17 |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20160518 Effective date of abandoning: 20180817 |