CN105443457B - Continuous liquid pressurizing mechanism and liquid pressure producing method realized by using same - Google Patents
Continuous liquid pressurizing mechanism and liquid pressure producing method realized by using same Download PDFInfo
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- CN105443457B CN105443457B CN201510992657.5A CN201510992657A CN105443457B CN 105443457 B CN105443457 B CN 105443457B CN 201510992657 A CN201510992657 A CN 201510992657A CN 105443457 B CN105443457 B CN 105443457B
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- pressure
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- pressure piston
- liquid
- check valve
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Classifications
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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
-
- 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
-
- 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 invention provides a continuous liquid pressurizing mechanism and a liquid pressure producing method. The continuous liquid pressurizing mechanism comprises a base with a cavity, a cylinder cover, a low-pressure piston cylinder, a low-pressure piston, a high-pressure piston and a valve body assembly. A flow concentrating seat integrated with the low-pressure piston and the high-pressure piston is assembled in the cavity of the base, and a high-pressure liquid flow pipeline is arranged in the high-pressure piston; the flow concentrating seat is provided with the valve body assembly and the liquid flow pipeline, and the low-pressure piston is used for a high-pressure piston cylinder for containing the high-pressure piston; the valve body assembly comprises a low-pressure liquid suction check valve, a low-pressure liquid discharging check valve, a high-pressure liquid discharging check valve and an overflow valve; the low-pressure liquid suction check valve is used for sucking a liquid, the liquid discharging end of the low-pressure liquid discharging check valve is connected with the high-pressure liquid discharging check valve, the high-pressure liquid flow pipeline is communicated with the liquid discharging end of the low-pressure liquid discharging check valve, and the high-pressure liquid discharging check valve is used for the high-pressure liquid suction check valve; and the overflow valve is communicated with the low-pressure piston cylinder, and the liquid is discharged by the overflow valve when the pressure in the low-pressure piston cylinder reaches up to a set value.
Description
Technical field
The invention belongs to liquid makes pressure technical field, being related to one kind by different size of liquid reservoir continuous pressure and can increase
The liquid continuous pressure booster body of elevated pressures is pressed onto, the wide pressure model using the liquid continuous pressure booster body is further related to
Enclose, the liquid that high efficiency is pressurizeed and is pressurized makes pressure method.Liquid continuous pressure booster body and liquid of the present invention makes pressure side
Method can be applied to pressure tool instrument check.
Background technology
Fluid pressure generally has safer quick advantage compared to gas pressure, especially this under high-pressure situations
The advantage of safety is particularly evident.When calibrating to pressure tool instrument, usually require that make pressure equipment can continuously, it is stable
Ground provides desirable pressure for tested equipment.
Macroscopically incompressible, common liq pressure validator generally adopts following structures to liquid medium：With single-stage
Piston pump (different pressure can be reached by using the single stage piston pump of different cross section size), device for storing liquid, micromatic setting,
The parts such as flow control element, carry out making pressure and supercharging by they are connected into an entirety with external pipe, realize pressure
Power is verified.But, single stage piston pump can only achieve certain pressure value and pressing speed, and low pressure fluid infusion is very slow, or high pressure reaches
Less than elevated pressures, make pressure speed and pressure limit is all restricted.In order to reach elevated pressures, generally adopt and be connected in series knot
The multiple-piston pump of structure, but its construction is complicated, and equipment overall dimensions are larger, use typically during universal industrial, and its behaviour
During work, often operational motion is complicated, does not meet lightweight, the easy to carry demand of pressure checking industry.
In pressure tool instrument check, when verifying to large volume, wide-range pressure gauge, it is desirable to make press mechanism can be by
School inspection pressure gauge quickly provides the steady pressure in range ability.Meanwhile, the verification of field instrument requires that making pressure equipment has weight
Amount is light, easy to carry, it is strong to make pressure energy power, make the features such as pressing wide ranges.
The content of the invention
It is an object of the invention to provide a kind of features simple structure, it is compact, make the reliable liquid of pressure efficiency high, pressure stability and connect
Continue pressurization booster body, and a kind of efficient liquid is provided and make pressure method.
In order to achieve the above object, the present invention provides a kind of liquid continuous pressure booster body, and which includes：With cavity
Pedestal, cylinder cap, the low-pressure piston cylinder being assemblied in the cavity of said base, low-pressure piston, high pressure piston and valve body group, wherein,
Afflux seat is also equipped with the cavity of said base, the afflux seat arranges integral with above-mentioned high pressure piston, and above-mentioned high pressure is lived
Plug is arranged on than above-mentioned afflux seat closer to the position of the open side of the cavity of said base, is provided with above-mentioned high pressure piston
High pressure liquid stream pipeline, arranges above-mentioned valve body group and fluid pipe in above-mentioned afflux seat；Above-mentioned low-pressure piston also serves as high pressure work
Plug cylinder, above-mentioned high pressure piston are accommodated in inside which；Above-mentioned valve body group include low pressure imbibition check valve, low pressure discharge opeing check valve,
High pressure discharge opeing check valve and overflow valve, above-mentioned low pressure imbibition check valve via the input duct imbibition for being arranged at said base, on
The liquid outlet for stating low pressure discharge opeing check valve is connected with above-mentioned high pressure discharge opeing check valve, the liquid in low-pressure piston chamber and high pressure piston chamber
Body via above-mentioned high pressure discharge opeing check valve to be arranged at said base Drainage pipe discharge, above-mentioned high pressure liquid stream pipeline with it is upper
The liquid outlet connection of low pressure discharge opeing check valve is stated, above-mentioned low pressure discharge opeing check valve can be used as high pressure imbibition check valve, it is above-mentioned
Overflow valve is connected with low-pressure piston cylinder, when low-pressure piston in-cylinder pressure reaches setting value via overflow valve discharge opeing.
In aforesaid liquid continuous pressure booster body, the above-mentioned high pressure piston and above-mentioned afflux seat that setting is integrated is formed
For stair-stepping cylinder, the cylinder overall dimensions of the cylinder overall dimensions of above-mentioned afflux seat more than above-mentioned high pressure piston.
In aforesaid liquid continuous pressure booster body, above-mentioned low-pressure piston is coaxially overlap with above-mentioned high pressure piston to match somebody with somebody
Put.
In aforesaid liquid continuous pressure booster body, above-mentioned low pressure imbibition check valve, above-mentioned low pressure discharge opeing check valve, on
Overflow valve and its respective accessory are stated in the axially arranged of above-mentioned afflux seat, above-mentioned high pressure discharge opeing check valve with above-mentioned afflux seat
Axially vertical side sets up.
In aforesaid liquid continuous pressure booster body, above-mentioned low-pressure piston cylinder has convex in the end of low-pressure piston side
Edge.
In aforesaid liquid continuous pressure booster body, the setting pressure of above-mentioned overflow valve is set as opening in the overflow valve
And when flowing out the liquid in low-pressure piston chamber, certain pressure fluid can be kept in low-pressure piston cylinder.
In aforesaid liquid continuous pressure booster body, each metal parts can be made up of the material of corrosion resistance.
The present invention also provides a kind of liquid of use aforesaid liquid continuous pressure booster body and makes pressure method, and which includes：Inhale
Liquid step, makes above-mentioned low-pressure piston become big direction to the volume for making low-pressure piston chamber and high pressure piston chamber and moves, liquid via
Above-mentioned low pressure imbibition check valve is inhaled into low-pressure piston cylinder, and liquid can be from low-pressure piston cylinder via above-mentioned low pressure discharge opeing check valve
It is inhaled into high-pressure piston cylinder so that high-pressure piston cylinder suction part liquid；High-pressure piston cylinder Bu Ye Walk are rapid, above-mentioned after Xi Ye Walk are rapid
During high-pressure piston cylinder is moved to the direction for making high pressure piston chamber volume diminish, the pressure in low-pressure piston chamber is lived more than high pressure
During the pressure in plug chamber, in low-pressure piston cylinder, liquid with pressure is filled in high-pressure piston cylinder by low pressure discharge opeing check valve, is carried out
The secondary imbibition in high pressure piston chamber；Pressurization steps, make above-mentioned low-pressure piston become to the volume for making low-pressure piston chamber and high pressure piston chamber
Little direction motion, when the pressure in high pressure piston chamber reaches above-mentioned high pressure discharge opeing unidirectional valve opening pressure, low-pressure piston cylinder, high pressure
Liquid in piston cylinder is expelled to hydraulic system via the Drainage pipe of above-mentioned high pressure discharge opeing check valve and said base；Supercharging
Step, when low-pressure piston cylinder pressure is higher than relief valve set pressure, makes above-mentioned low-pressure piston further to making low-pressure piston chamber
Move with the direction that the volume in high pressure piston chamber diminishes, the liquid in low-pressure piston chamber flows back to imbibition pipeline, high pressure via overflow valve
Piston cylinder independent role and continue pressurization, highly pressurised liquid from high pressure discharge opeing check valve discharge.
Aforesaid liquid is made in pressure method, above-mentioned imbibing step, above-mentioned high-pressure piston cylinder fluid infusion step and above-mentioned pressurization steps
It is repeated, until discharge opeing pressure reaches the setting pressure of above-mentioned overflow valve.
Aforesaid liquid is made in pressure method, after pressure increase step, judge discharge opeing pressure whether reached require be pressurized to it is pre-
Constant-pressure, if it is judged that above-mentioned imbibing step, above-mentioned high-pressure piston cylinder is then repeated to be not reaching to the predetermined pressure
Fluid infusion step, above-mentioned pressurization steps and above-mentioned pressure increase step, until judged result has reached what requirement was pressurized to for discharge opeing pressure
Predetermined pressure, then tenth skill.
Invention effect
As described above, in the liquid continuous pressure booster body of the present invention, low pressure discharge opeing check valve is also used as high pressure suction
Liquid check valve, can make the booster body dexterously save an imbibition check valve on the whole so that fluid flow tube rood is with letter
Change.And, critical component of the check valve as control medium flow direction, it is desirable to which sealing surface has higher machining accuracy, generally also
It is the main leakage position of pressure mechanism and important safeguards position.By reducing by a check valve, obtain the difficulty of processing of mechanism
To reduce, maintainability is improved.High pressure discharge opeing check valve becomes unique check valve of pump housing connected drainage pipeline, hydraulic system
Only relevant with the high press juice check valve during leakage from the pump housing, the inspection and maintenance for so making pressure system becomes simpler.
In the liquid continuous pressure booster body of the present invention, low-pressure piston internal openings are as high-pressure piston cylinder, thus low
While pressure piston relatively low pressure piston cylinder is moved, high-pressure piston cylinder relatively high pressure piston movement carries out making pressure, and, fluid flow tube
Road, three check valves and overflow valve are integrated on afflux seat simultaneously, and hollow type high-pressure piston rod and afflux seat are arranged and be integrated, because
This has the advantages that Highgrade integration, can form plug-in mounting structure, applied widely.And can greatly limit utilize material,
Make full use of space in mechanism, reducing mechanism overall structure size, and can easily carry out modularized design, be easy to processing,
Install and safeguard.
Be formed as outside stair-stepping cylinder, and the cylinder of afflux seat by making high pressure piston that setting is integrated and afflux seat
Cylinder overall dimensions of the shape size more than high pressure piston, can make compact conformation, and integrated level is high.
Coaxially overlapped with high pressure piston by making low-pressure piston, low-pressure piston is moved relative to low-pressure piston cylinder
Meanwhile, high-pressure piston cylinder (i.e. low-pressure piston) is moved relative to high pressure piston, can more efficiently carry out making pressure, and structure is more
For compact.
By by low pressure imbibition check valve, low pressure discharge opeing check valve, overflow valve and its respective accessory in the axial direction of afflux seat
Arrange, high pressure discharge opeing check valve set up in the axially vertical side with afflux seat, can high integration ground by these lists
It is mounted in afflux seat to valve and overflow valve, realizes stream connected mode between the valve of the above-mentioned feature as the present invention, and energy
It is enough easily to carry out modularized design, it is easy to process, install and safeguard.
There is flange in the end of low-pressure piston side by causing low-pressure piston cylinder, can be by the flange be sticked in base
The end of seat and low-pressure piston cylinder is fixed on into pedestal easily, and easily can be dismounted.
By the setting pressure of overflow valve is set as when the overflow valve is opened and flows out the liquid in low-pressure piston chamber
Certain pressure fluid can be kept in low-pressure piston cylinder, can be in pressurization, while via overflow valve discharge opeing
Proceed the pressurizing action in high pressure piston chamber,
As each metal parts can be made up of the material of corrosion resistance, the liquid continuous pressure booster body of the present invention exists
During for pressurizeing and be pressurized in purposes, more liquid mediums are can adapt to.
Additionally, when imbibition is carried out using common small bore piston cylinder, as imbibition cavity is little, formation vacuum capacity is poor,
The vacuum being usually formed is insufficient to allow check valve to open, and emptying phenomenon often occurs, it is impossible to sucks liquid in piston cylinder, affects
Make pressure efficiency.But the liquid of use aforesaid liquid continuous pressure booster body of the invention makes pressure method, by overflow valve
Breakdown action so that low-pressure piston in-cylinder pressure is no longer raised, therefore in low-pressure piston cylinder can maintain certain pressure
Liquid, using the pressure fluid kept in low-pressure piston cylinder, can quickly fill into high-pressure piston cylinder in high pressure piston imbibition
Interior, additional small-diameter piston higher cylinder imbibition makes high pressure piston chamber hydraulically full, it is to avoid what high pressure small bore piston cylinder was emptied shows
As, it is ensured that high pressure piston chamber charging efficiency.
As described above, the liquid continuous pressure booster body operational motion of the present invention is simple, device integration is high, and structure is tight
Gather, can adapt to lightweight, easy to carry demand, be suitable to be applied to pressure checking industry.And the liquid of the present invention makes pressure
Method can quickly provide stable high pressure, and with making, pressure energy power is strong, make the features such as pressing wide ranges.Furthermore it is possible to realize larger
The verification of cavity volume, wide-range manometer, makes pressure method by adopting the liquid continuous pressure booster body and liquid of the present invention
Feed flow pressurization can continuously and quickly be carried out to the tested equipment of different size cavity volume, be pressurized to elevated pressures, and which is made
The pressure limit width of pressure.
Description of the drawings
Fig. 1 (b) is the major part profile of liquid continuous pressure booster body, and Fig. 1 (a) is the Section A-A of Fig. 1 (b)
Figure.
Fig. 2 (a), (b) are the figures of the imbibition process for representing the liquid continuous pressure booster body shown in Fig. 1.
Fig. 3 (a), (b) are to represent the low-pressure piston down initial stage in the liquid continuous pressure booster body shown in Fig. 1
High-pressure piston cylinder fluid infusion process figure.
Fig. 4 (a), (b) are the figures of the pressure process for representing the liquid continuous pressure booster body shown in Fig. 1.
Fig. 5 (a), (b) are the figures of the pressurization for representing the liquid continuous pressure booster body shown in Fig. 1.
Fig. 6 be represent liquid continuous pressure booster body shown in Fig. 1 make pressure flow chart.
Reference：
01 ... pedestal；
021 ... high pressure piston；
022 ... afflux seat；
03 ... overflow valve；
04 ... piston in combination is sealed；
05 ... low-pressure piston cylinder；
06 ... cylinder cap；
07 ... high pressure liquid stream pipeline；
08 ... low-pressure piston (high-pressure piston cylinder)；
10 ... valve body groups；
11 ... low pressure imbibition check valves；
12 ... imbibition pipelines；
13 ... Drainage pipes；
14 ... high pressure discharge opeing check valves；
15 ... low pressure discharge opeing check valves；
221 ... first fluid pipes；
222 ... second fluid pipes；
223 ... connecting pipes.
Specific embodiment
Below in conjunction with the structure of the liquid continuous pressure booster body of the description of the drawings present invention.In saying for the following present invention
In bright, " supercharging " refers to the further pressurization on the basis of " pressurization ", and " making pressure " is the general designation to " pressurization " and " supercharging ".Separately
Outward, " piston " refers to the part that can be moved relative to the inner surface of piston cylinder (having certain sealing) in piston cylinder,
Can be the structure for including piston head and piston rod, it is also possible to only with piston rod.
With reference to shown in Fig. 1 (a), (b), the liquid continuous pressure booster body mainly includes：Pedestal 01, cylinder cap 06, low pressure
Piston cylinder 05, also serves as the low-pressure piston 08 of high-pressure piston cylinder, arranges all-in-one-piece high pressure piston 021 and afflux seat 022, comprising
Low pressure imbibition check valve 11, low pressure discharge opeing check valve 15,14 these three check valves of high pressure discharge opeing check valve and an overflow valve 03
Valve body group 10.Wherein, so-called setting all-in-one-piece high pressure piston 021 and afflux seat 022, after referring to that they can be formed separately
Fit together and integrated, it is also possible to be integrally formed by being processed into a part.
The liquid continuous pressure booster body of vertical setting is illustrated in Fig. 1 (a), (b), wherein, pedestal 01 is cylinder, if
The cavity of upward opening is equipped with, low-pressure piston cylinder 05 and afflux seat 022 are assemblied in the cavity in the way of being arranged above and below.That is, collect
Stream seat 022 is also cylinder, and which is assemblied in the bottom of the cavity, the lower inner surface phase of side and bottom surface and the cavity of pedestal 01
Coordinate；Low-pressure piston cylinder 05 is column casing, is assemblied in the cavity of pedestal 01 in the top position of afflux seat 022, its side with should
The upper inside surface of cavity is engaged, and its bottom surface is connected with the upper surface of afflux seat 022.For the cavity reality relative to pedestal 01
Now seal, annular groove is provided with the outer cylinder of low-pressure piston cylinder 05 and afflux seat 022, in annular groove place sealing ring.
The upper end (end of the side contrary with afflux seat 022) of the outer cylinder of low-pressure piston cylinder 05 it is step-like formed
There is flange, low-pressure piston cylinder 05 can be fixed on into base by the flange is sticked in the end face at the cavities open of pedestal 01
Seat 01.
Cylinder cap 06 has the through-hole section for passing through low-pressure piston 08.Cylinder cap 06 is so that low-pressure piston 08 exposes in outside side
Formula compresses the above-mentioned flange of low-pressure piston cylinder 05 from the top down and is anchored on pedestal 01.
Low-pressure piston 08 is configured in low-pressure piston cylinder 05, so as to form low-pressure piston chamber.In the inside of low-pressure piston 08
It is axially arranged to have the endoporus as high-pressure piston cylinder, i.e., high pressure piston chamber is formed between low-pressure piston 08 and high pressure piston 021.
In FIG, low-pressure piston is overlapped with high pressure piston, thus, while low-pressure piston is moved relative to low-pressure piston cylinder, high
Pressure piston cylinder (i.e. low-pressure piston) is moved relative to high pressure piston such that it is able to more efficiently carry out making pressure.And, it is low in Fig. 1
Pressure piston is coaxial with high pressure piston, and thus overall structure is more compact.But the present invention is not limited to this, low-pressure piston and high pressure
Piston can also be axially in parallel but not coaxial.
As shown in figure 1, high pressure piston 021 is also cylinder, it is wholely set with afflux seat 022, and outside the cylinder of afflux seat 022
Cylinder external diameter of the footpath more than high pressure piston 021, that is, the high pressure piston 021 and afflux seat 022 being wholely set become stair-stepping post
Body.High pressure piston 021 is arranged on the open position (top in Fig. 1) of the cavity that pedestal 01 is more leaned on than afflux seat 022.In height
Pressure piston 021 is axially being provided with the open hollow space in upper end from top to bottom, forms high pressure liquid flow tube by the hollow space
Road 07.The section of above-mentioned each cylinder in the present invention can be the various phase interworkings such as circle, ellipse, rectangle, square
The shape of conjunction, in the case where the section of cylinder is not circle, the cylinder peripheral dimension of afflux seat 022 is more than high pressure piston 021
Cylinder peripheral dimension, so as to the high pressure piston 021 that is wholely set and afflux seat 022 become stepped cylinder.
The lower surface of the cylinder of afflux seat 022 is provided with the first fluid pipe 221 of the annular for imbibition, in afflux
The second fluid pipe 222 of the annular for discharge opeing is provided with the middle part of the cylinder of seat 022.It is provided with pedestal 01 and liquid
The input duct 12 that offer device (not shown) connects, the input duct 12 are connected with the first fluid pipe 221 of afflux seat 022
It is logical, for supplying liquid to afflux seat 022.The Drainage pipe connected with pressure system (not shown) is additionally provided with pedestal 01
13, the Drainage pipe 13 is connected with the second fluid pipe 222 of afflux seat 022, for from 022 drain of afflux seat.
The detailed construction of each valve and fluid pipe in afflux seat 022 is illustrated below.As shown in figure 1, being formed in afflux seat 022
There are multiple endoporus for installing each valve, each fluid pipe and each valve to be integrally arranged in afflux seat 022, form a valve
Seat module.Wherein, low pressure imbibition check valve 11, low pressure discharge opeing check valve 15, overflow valve 03 and its respective accessory are in afflux seat 022
It is axially arranged, high pressure discharge opeing check valve 14 sets up in the side orthogonal with the axial direction of afflux seat 022 and (in afflux seat 022 is
During cylinder, it is being radially arranged).The liquid feeding end of low pressure imbibition check valve 11 is connected with the first fluid pipe 221 of afflux seat 022
It is logical, can be via 12 imbibition of input duct.The liquid feeding end of low pressure discharge opeing check valve 15 is connected with low-pressure piston cylinder, low for discharging
Liquid in pressure piston cylinder.Via even between the liquid feeding end of the liquid outlet and high pressure discharge opeing check valve 14 of low pressure discharge opeing check valve 15
Thread a pipe 223 be connected.The entrance point (lower inlet in figure) of the high pressure liquid stream pipeline 07 in high pressure piston 021 is also connected with this
Pipeline 223 is connected.That is, the liquid outlet of low pressure discharge opeing check valve 15 is connected with the liquid feeding end of high pressure discharge opeing check valve 14, and high pressure
The liquid feeding end of discharge opeing check valve 14 is connected with high-pressure piston cylinder, therefore, the liquid of low pressure (LP) cylinder and high pressure cylinder is via high pressure discharge opeing
Second fluid pipe 222 of check valve 14 and afflux seat 022 is to 13 discharge opeing of Drainage pipe；And low pressure discharge opeing check valve 15 goes out
Liquid end is connected with the entrance point of the high pressure liquid stream pipeline 07 in high pressure piston 021 such that it is able to will be low pressure discharge opeing check valve 15 same
When also serve as high pressure imbibition check valve.Thus, low-pressure piston chamber passes through 11 imbibition of low pressure imbibition check valve, and high pressure piston chamber passes through
Low pressure discharge opeing check valve 15 is from low-pressure piston cylinder imbibition.In addition, high pressure discharge opeing check valve 14 is connected with Drainage pipe 13, Neng Goujin
Row discharge opeing.
The liquid feeding end of overflow valve 03 is connected with low-pressure piston chamber, when low-pressure piston cavity pressure reaches setting value, via
03 discharge opeing of overflow valve, enters the first fluid pipe 221.
The assembling process of the liquid continuous pressure booster body of the present invention is illustrated below.
Low pressure imbibition check valve 11, low pressure discharge opeing check valve 15, high press juice check valve 14,03 and of overflow valve will be assembled
Afflux seat 022 obtained from its respective accessory, sealing density ring etc. and load base as an entirety with the high pressure piston 021 of its one
In seat 01.It is so overall to load, integrally the afflux seat for being integrated with each valve can be together taken out in dismounting, therefore install, tear open
Unload process very convenient.
The low-pressure piston 08 is inserted in into low pressure after the such as sealing ring etc. of piston seal 04 is installed in the lower section of low-pressure piston 08
Piston cylinder 05, while high pressure piston 021 is included high-pressure piston cylinder (i.e. the inner chamber of low-pressure piston 08), low-pressure piston cylinder 05
It is loaded in pedestal 01.Cylinder cap 06 is finally installed, and cylinder cap 06 is fastened with pedestal 01, high pressure piston is compressed using low-pressure piston cylinder 05
021 with afflux seat 022, prevent from pressing through journey mesohigh piston 021 and sliding with 022 opposite base 01 of afflux seat making.
Thus, the liquid continuous pressure booster body of the present invention is obtained by above-mentioned assembling process.In addition, described above
The liquid continuous pressure booster body of the present invention is the situation of vertical setting.But the present invention is not limited to this, liquid is continuous
Pressurization booster body horizontal can also be arranged.
As described above, in the liquid continuous pressure booster body of the present invention, two-stage piston is overlapped to be placed, and each check valve,
Overflow valve centralized configuration, therefore there is Highgrade integration, plug-in mounting structure can be formed, the scope of application is wider.
And, low pressure discharge opeing check valve 15 is also used as into high pressure imbibition check valve during circuit design, thereby, it is possible to make the increasing
Press mechanism dexterously saves an imbibition check valve on the whole so that fluid flow tube road is simplified.Check valve is situated between as control
Mass flow to critical component, it is desirable to sealing surface has higher machining accuracy, the generally also main leakage position of pressure mechanism
Position is safeguarded with important.High pressure imbibition check valve is multiplexed with low pressure discharge opeing check valve in the present invention, the pressurization booster body is made
Reduce by a check valve in overall structure, make that the difficulty of processing of mechanism is minimized, maintainability is improved.And, high pressure
Discharge opeing check valve becomes unique check valve of pump housing connected drainage pipeline, and hydraulic system is only extruded with the height during leakage from the pump housing
Liquid check valve is relevant, and the inspection and maintenance for so making pressure system becomes simpler.
Fluid pipe, each check valve and overflow valve are integrated in into the structure in afflux seat 022 by adopting, on the one hand can
Greatly limit utilizes material, makes full use of space in mechanism, reducing mechanism overall structure size on the other hand easily can enter
Row modularized design.In addition, when above-mentioned part is formed using resistant material, the liquid continuous pressure booster body of the present invention
During for pressurizeing and be pressurized in purposes, can adapt to more liquid mediums, and modularized design also allow for processing, install and
Safeguard.
Referring to Fig. 2～Fig. 6, pressurization and the pressurizing action of the liquid continuous pressure booster body are illustrated.
Fig. 2 is the figure of the imbibition process for representing the liquid continuous pressure booster body.Hollow arrow in Fig. 2 represents piston
The direction of motion, filled arrows represent the flow direction of fluid.In imbibition process, low-pressure piston (i.e. high pressure piston is made in fig. 2
Cylinder) 08 move upward, other parts are maintained static, and the volume in low-pressure piston chamber and high pressure piston chamber becomes big, low-pressure piston chamber
Become negative pressure with high pressure piston chamber, by 11 imbibition (Fig. 2 (a)) of low pressure imbibition check valve, high pressure piston chamber can in low-pressure piston chamber
By low pressure discharge opeing check valve 15 from low pressure (LP) cylinder via 07 imbibition of high pressure liquid stream pipeline (Fig. 2 (b)), but due to high pressure piston section
Size limitation, high pressure piston cavity volume are less, form vacuum capacity deficiency, and high pressure piston chamber generally can not be hydraulically full, liquid
Full condition is different according to each stroke.
Fig. 3 represents the low-pressure piston 08 of the liquid continuous pressure booster body to making low-pressure piston chamber and high pressure piston cavity
The direction motion that product diminishes, is the process of high pressure piston chamber fluid infusion.That is, after imbibition process, low-pressure piston (high-pressure piston cylinder) 08
Move to the direction for making the volume in low-pressure piston chamber and high pressure piston chamber diminish, be to transport downwards in figure 3 in piston cavity pressure
It is dynamic.Fluid pressure in low-pressure piston cylinder is closed higher than fluid pressure in imbibition pipeline 12, low pressure imbibition check valve 11.Fig. 3
A (), (b) represent that the motion initial period low-pressure piston cavity pressure is more than in the stroke of high pressure piston cavity pressure, low-pressure piston cylinder
Middle liquid enters high pressure piston chamber by low pressure discharge opeing check valve Jing connecting pipes 223 and high pressure liquid stream pipeline 07, makes high pressure piston
The quick liquid make-up in chamber, carries out the secondary imbibition in high pressure piston chamber.
Fig. 4 represents the pressure process of the liquid continuous pressure booster body.Above-mentioned high pressure piston chamber liquid is full of rear continuation
When moving downward (such as Fig. 4 (a), (b)), the volume in compression and low pressure plunger shaft and high pressure piston chamber, low pressure discharge opeing check valve 15, height
Pressure liquid check valve 14 is opened, and low-pressure piston chamber, the liquid in high pressure piston chamber are converged in connecting pipe 223, via high pressure
Drainage pipe in the middle part of liquid check valve 14 and pedestal 01 enters external hydraulic system, realizes that feed flow pressurizes.
Imbibition shown in above-mentioned Fig. 2, Fig. 3 and Fig. 4 is repeated, for the action of high-pressure piston cylinder fluid infusion and pressurization, until
Discharge opeing pressure reaches the setting pressure (spring force) of overflow valve.The spring force of the overflow valve is set as opening in overflow valve, makes low
When the liquid of pressure plunger shaft flows out, certain pressure fluid can be kept in low-pressure piston cylinder, and (pressure is equal to overflow valve
Opening pressure).
Fig. 5 is the figure of the pressurization for representing the liquid continuous pressure booster body.When the fluid pressure in pressure chamber
After reaching overflow valve spring setting pressure, in low-pressure piston cylinder, liquid also reaches relief valve set pressure, in Fig. 5 (a), (b),
Side moves low-pressure piston (high-pressure piston cylinder) 08 further downward, makes low-pressure piston chamber and the volume in high pressure piston chamber diminish, high
The pressure formed in cylinder pressure is closed, is connected with low-pressure piston cylinder more than the pressure formed in low pressure (LP) cylinder, low pressure discharge opeing check valve 15
Overflow valve 03 open, the imbibition pipeline 12 that the liquid in low-pressure piston chamber is flowed back to below pedestal 01 is kept in low-pressure piston cylinder
With the liquid with the pressure balanced pressure of setting of overflow valve.High-pressure piston cylinder independent role and continue pressurization, thus reach
The pressure higher than the fluid pressure that pressure process reaches, that is, realize supercharging.Highly pressurised liquid is discharged from high pressure discharge opeing check valve.
When still predetermined high pressure can not be reached after pressurizing action has been carried out, repeat imbibition process, high pressure piston
Cylinder fluid infusion process, pressure process and pressurization continue pressurization, until discharge opeing pressure reaches the predetermined pressure that requirement is pressurized to, complete
Into pressurization and the pressurization of the liquid continuous pressure booster body.
When imbibition is carried out using common small bore piston cylinder, as imbibition cavity is little, formation vacuum capacity is poor, usual shape
Into vacuum be insufficient to allow check valve to open, and often there is emptying phenomenon, it is impossible to suck liquid in piston cylinder, pressure effect is made in impact
Rate.And the liquid continuous pressure booster body of the present invention, by the breakdown action of overflow valve so that low-pressure piston in-cylinder pressure is not
Raise again, certain pressure fluid can be maintained in low-pressure piston cylinder so as to high pressure is quickly filled in high pressure piston imbibition
In piston cylinder, additional small-diameter piston higher cylinder imbibition makes high pressure piston chamber hydraulically full, it is to avoid high pressure small bore piston cylinder is inhaled
Empty phenomenon, it is ensured that high pressure piston chamber charging efficiency.
That is, as described above, liquid continuous pressure booster body of the invention, by low-pressure piston is lived as high pressure
Plug cylinder, and the configuration structure of the valve body using the invention described above, are obtained in that following excellent effects：In low-pressure piston imbibition
Afterwards, pressure initial period is being made, low-pressure piston cylinder and high-pressure piston cylinder are acted on simultaneously, is realizing quickly pressurizeing to liquid；Work as system pressure
After reaching relief valve set pressure, overflow valve is opened and low-pressure piston in-cylinder pressure is no longer raised, and due to high pressure piston chamber
Pressure be higher than low-pressure piston cylinder pressure, low pressure discharge opeing closed check valve, high pressure piston chamber continue as pressure system supercharging, and
Low pressure rapid fluid replacement can also be realized in high pressure piston imbibition, the demand of the laborsaving supercharging of high pressure is met, pressure efficiency is made in raising.
When for manometer verify industry when, by it is external for make press mechanism provide liquid reserving liquid tank, to pressure
The micromatic setting that the pressure of Force system is finely adjusted and the master gauge for measuring the pressure of target device, the company of the present invention
Continuous pressurization booster body can realize the continuous of the tested equipment of different size cavity volume is pressurizeed to liquid, and be pressurized to elevated pressures, its
Make the pressure limit width of pressure.
Fig. 6 is to represent the flow chart for making pressure method using the liquid of the liquid continuous pressure booster body of the present invention.
First, reset liquid continuous pressure booster body (step S1), makes cavity volume reach minimum, is then inhaled
Liquid step S2.That is, make low-pressure piston 08 become big direction to the volume for making low-pressure piston chamber and high pressure piston chamber to move, such as Fig. 2
Move upward.Thus, low-pressure piston chamber and high pressure piston chamber become negative pressure, and liquid is inhaled into by low pressure imbibition check valve 11
Low-pressure piston chamber, and liquid can be inhaled into high pressure piston by low pressure discharge opeing check valve 15 from low pressure (LP) cylinder in this process
Chamber.
Then, after imbibing step, into high-pressure piston cylinder fluid infusion step S31.That is, low-pressure piston 08 is made to making low pressure live
The direction motion that the volume in plug chamber and high pressure piston chamber diminishes, is moved in such as Fig. 3 downwards, and low pressure imbibition check valve 11 is closed.
As shown in Fig. 3 (a), (b), in low-pressure piston chamber, fluid pressure is more than high pressure piston intracavity liquid pressure so as to via low pressure discharge opeing
Check valve enters high pressure piston chamber, and high pressure piston chamber is quickly charged into liquid.That is, by high-pressure piston cylinder fluid infusion step S31 first
The imbibition in high pressure piston chamber is completed in the less stroke of beginning pressurization further.
Then, proceed pressurization steps S32, i.e. high pressure piston chamber continue after liquid topping up in Fig. 4 (a), (b) to
Lower motion, low pressure discharge opeing check valve 15, high pressure discharge opeing check valve 14 are opened.Low-pressure piston chamber, high pressure piston chamber liquid simultaneously
Via high pressure discharge opeing check valve 14 and the Drainage pipe 13 in the middle part of pedestal 01 into peripheral hardware the hydraulic pressure system for needing highly pressurised liquid
System, realizes high and low pressure piston cylinder while feed flow pressurization.
The pressure value for making discharge opeing pressure value and set for P, overflow valve is P2 as P1, expecting pressure value.When expecting pressure P2 it is little
When the pressure P1 of overflow valve setting, after pressurization steps S32 terminate, if discharge opeing pressure P is less than expecting pressure P2,
Above-mentioned imbibing step S2, high pressure cylinder fluid infusion step S31 and pressurization steps S32 are repeated, until discharge opeing pressure P reaches expected pressure
Power P2, completes pressure process (this process only needs to carry out high and low pressure piston while pressurization).When expecting pressure P2 is more than overflow valve
During the pressure P1 of setting, after the fluid pressure P in pressure chamber reaches overflow valve spring setting pressure P1, into pressure increase step
S5.That is, low-pressure piston 08 is made further to move (such as in figure to the direction for making the volume in low-pressure piston chamber and high pressure piston chamber diminish
It is to move in 5 downwards), low pressure discharge opeing check valve 15 is closed, and overflow valve 03 is opened, and the liquid in low-pressure piston chamber flows back to pedestal 01
The imbibition pipeline 12 of lower section.High-pressure piston cylinder independent role and continue pressurization, highly pressurised liquid from high pressure discharge opeing check valve discharge, this
Process completes high pressure piston supercharging.
After being once pressurized, when discharge opeing pressure P is not up to expecting pressure P2, imbibing step S2, high pressure cylinder fluid infusion are carried out
The rapid S5 of the rapid S32 and Zeng Ya Walk of Jia Ya Walk of liquid in step S31, high-pressure piston cylinder and low-pressure piston cylinder, are carried out further
Supercharging.When discharge opeing pressure P has reached the expecting pressure P2 for requiring to be pressurized to, then terminate adding for the liquid continuous pressure booster body
Pressure and pressurizing action.
When imbibition is carried out using common small bore piston cylinder, as imbibition cavity is little, formation vacuum capacity is poor, usual shape
Into vacuum be insufficient to allow check valve to open, and often there is emptying phenomenon, it is impossible to suck liquid in piston cylinder, pressure effect is made in impact
Rate.But liquid of the invention makes pressure method, by the breakdown action of overflow valve so that low-pressure piston in-cylinder pressure no longer rises
Height, therefore certain pressure fluid can be maintained in low-pressure piston cylinder, using the pressure fluid kept in low-pressure piston cylinder
Body, quickly can fill in high-pressure piston cylinder in high pressure piston imbibition, additional small-diameter piston higher cylinder imbibition, make high pressure piston
Chamber is hydraulically full, it is to avoid the phenomenon that high pressure small bore piston cylinder is emptied, it is ensured that high pressure piston chamber charging efficiency.
Industrial utilizability
According to the present invention, there is provided the high liquid continuous pressure booster body of compact conformation, integrated level and using the mechanism
Liquid makes pressure method, and which can efficiently and stably be carried out continuously feed flow pressurization, and Quick-pressurizing is to elevated pressures, and makes and cover lid
Pressure limit width.And big cavity volume, the verification of wide-range manometer can be realized, by adopting the liquid of the present invention continuous
Pressurization booster body and liquid are made pressure method and can continuously and quickly carry out feed flow to the tested equipment of different size cavity volume and adds
Pressure, is pressurized to elevated pressures, and which makes the pressure limit width of pressure.
Claims (10)
1. a kind of liquid continuous pressure booster body, which includes：Pedestal with cavity, cylinder cap, the sky for being assemblied in the pedestal
Low-pressure piston cylinder, low-pressure piston, high pressure piston and valve body group in chamber, the liquid continuous pressure booster body are characterised by：
Afflux seat is also equipped with the cavity of the pedestal, the afflux seat arranges integral, the height with the high pressure piston
Pressure piston is arranged on than the afflux seat closer to the position of the open side of the cavity of the pedestal, is set in the high pressure piston
High pressure liquid stream pipeline is equipped with, the valve body group and fluid pipe are set in the afflux seat；
The low-pressure piston also serves as high-pressure piston cylinder, and the high pressure piston is accommodated in inside which；
The valve body group includes low pressure imbibition check valve, low pressure discharge opeing check valve, high pressure discharge opeing check valve and overflow valve, described low
Pressure imbibition check valve via the input duct imbibition for being arranged at the pedestal, the liquid outlet of the low pressure discharge opeing check valve with it is described
High pressure discharge opeing check valve is connected, and the liquid in low-pressure piston chamber and high pressure piston chamber is via the high pressure discharge opeing check valve to setting
The Drainage pipe for being placed in the pedestal is discharged, and the high pressure liquid stream pipeline is connected with the liquid outlet of the low pressure discharge opeing check valve,
The low pressure discharge opeing check valve can be used as high pressure imbibition check valve, the overflow valve is connected with low-pressure piston cylinder, in low pressure
Via overflow valve discharge opeing when piston in-cylinder pressure reaches setting value.
2. liquid continuous pressure booster body as claimed in claim 1, it is characterised in that：
The high pressure piston and the afflux seat that setting is integrated is formed as stair-stepping cylinder, outside the cylinder of the afflux seat
Cylinder overall dimensions of the shape size more than the high pressure piston.
3. liquid continuous pressure booster body as claimed in claim 2, it is characterised in that：
The low-pressure piston is coaxially overlapped with the high pressure piston.
4. liquid continuous pressure booster body as claimed in claim 2, it is characterised in that：
The low pressure imbibition check valve, the low pressure discharge opeing check valve, the overflow valve axially arranged, the institute the afflux seat
State high pressure discharge opeing check valve to set up in the axially vertical side with the afflux seat.
5. the liquid continuous pressure booster body as any one of Claims 1 to 4, it is characterised in that：
The low-pressure piston cylinder has flange in the end of low-pressure piston side.
6. the liquid continuous pressure booster body as any one of Claims 1 to 4, it is characterised in that：
The setting pressure of the overflow valve is set as when the overflow valve is opened and flows out the liquid in low-pressure piston chamber, Neng Gou
Certain pressure fluid is kept in low-pressure piston cylinder.
7. the liquid continuous pressure booster body as any one of Claims 1 to 4, it is characterised in that：
Each metal parts in the liquid continuous pressure booster body is made up of the material of corrosion resistance.
8. a kind of usage right requires that the liquid of the liquid continuous pressure booster body any one of 1～7 makes pressure method, its
It is characterised by, including：
Imbibing step, makes the low-pressure piston become big direction to the volume for making low-pressure piston chamber and high pressure piston chamber and moves, liquid
Body is inhaled into low-pressure piston cylinder via the low pressure imbibition check valve, and liquid can be arranged from low-pressure piston cylinder via the low pressure
Liquid check valve is inhaled into high-pressure piston cylinder so that high-pressure piston cylinder suction part liquid；
High-pressure piston cylinder Bu Ye Walk are rapid, and after Xi Ye Walk are rapid, the high-pressure piston cylinder is to the direction fortune for making high pressure piston chamber volume diminish
In dynamic process, when the pressure in low-pressure piston chamber is more than the pressure in high pressure piston chamber, in low-pressure piston cylinder, liquid with pressure passes through
Low pressure discharge opeing check valve is filled in high-pressure piston cylinder, carries out the secondary imbibition in high pressure piston chamber；
Pressurization steps, make the low-pressure piston move to the direction for making the volume in low-pressure piston chamber and high pressure piston chamber diminish, high
When the pressure of pressure plunger shaft reaches the high pressure discharge opeing unidirectional valve opening pressure, the liquid in low-pressure piston cylinder, high-pressure piston cylinder
Hydraulic system is expelled to via the Drainage pipe of the high pressure discharge opeing check valve and the pedestal；
Pressure increase step, when low-pressure piston cylinder pressure is higher than relief valve set pressure, makes the low-pressure piston further low to making
The direction motion that the volume in pressure plunger shaft and high pressure piston chamber diminishes, the liquid in low-pressure piston chamber flow back to pipette via overflow valve
Road, high-pressure piston cylinder independent role and continue pressurization, highly pressurised liquid from high pressure discharge opeing check valve discharge.
9. liquid as claimed in claim 8 makes pressure method, it is characterised in that：
The imbibing step, the high-pressure piston cylinder fluid infusion step and the pressurization steps are repeated, until discharge opeing pressure reaches
To the setting pressure of the overflow valve.
10. liquid as claimed in claim 8 or 9 makes pressure method, it is characterised in that：
After pressure increase step, judge whether discharge opeing pressure has reached the predetermined pressure for requiring to be pressurized to, if it is judged that for not
Have reach the predetermined pressure be then repeated the imbibing step, the high-pressure piston cylinder fluid infusion step, the pressurization steps and
The pressure increase step, until judged result has reached the predetermined pressure that requirement is pressurized to for discharge opeing pressure, then tenth skill.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510992657.5A CN105443457B (en) | 2015-07-15 | 2015-12-24 | Continuous liquid pressurizing mechanism and liquid pressure producing method realized by using same |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510416597 | 2015-07-15 | ||
| CN2015104165972 | 2015-07-15 | ||
| CN201510992657.5A CN105443457B (en) | 2015-07-15 | 2015-12-24 | Continuous liquid pressurizing mechanism and liquid pressure producing method realized by using same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105443457A CN105443457A (en) | 2016-03-30 |
| CN105443457B true CN105443457B (en) | 2017-04-26 |
Family
ID=55468985
Family Applications (5)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521100466.5U Withdrawn - After Issue CN205246280U (en) | 2015-07-15 | 2015-12-24 | Portable fluid 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 |
| CN201510989795.8A Active CN105403360B (en) | 2015-07-15 | 2015-12-24 | Portable liquid pressure checker |
| CN201510992657.5A Active CN105443457B (en) | 2015-07-15 | 2015-12-24 | Continuous liquid pressurizing mechanism and liquid pressure producing method realized by using same |
Family Applications Before (4)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521100466.5U Withdrawn - After Issue CN205246280U (en) | 2015-07-15 | 2015-12-24 | Portable fluid 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 |
| CN201510989795.8A Active CN105403360B (en) | 2015-07-15 | 2015-12-24 | Portable liquid pressure checker |
Country Status (1)
| Country | Link |
|---|---|
| CN (5) | CN205246280U (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205246280U (en) * | 2015-07-15 | 2016-05-18 | 北京康斯特仪表科技股份有限公司 | Portable fluid pressure checker |
| 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 |
| CN113916443B (en) * | 2021-10-08 | 2023-05-16 | 安徽科技学院 | Air pressure sensor detection device |
| 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 |
Family Cites Families (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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. |
| 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 |
| 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 |
| 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 |
| CN205246280U (en) * | 2015-07-15 | 2016-05-18 | 北京康斯特仪表科技股份有限公司 | Portable fluid pressure checker |
-
2015
- 2015-12-24 CN CN201521100466.5U patent/CN205246280U/en not_active Withdrawn - After Issue
- 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 CN201510989795.8A patent/CN105403360B/en active Active
- 2015-12-24 CN CN201510992657.5A patent/CN105443457B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN205384115U (en) | 2016-07-13 |
| CN105403360A (en) | 2016-03-16 |
| CN105443457A (en) | 2016-03-30 |
| CN205533470U (en) | 2016-08-31 |
| CN105403360B (en) | 2018-08-17 |
| CN205246280U (en) | 2016-05-18 |
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Effective date of registration: 20220321 Address after: No. 1581, Kangxi Road, Badaling Economic Development Zone, Yanqing District, Beijing 100094 Patentee after: Beijing Sangpu Xinyuan Technology Co.,Ltd. Address before: 100094 Building 5, yard 3, fengxiu Middle Road, Haidian District, Beijing Patentee before: BEIJING CONST INSTRUMENTS TECHNOLOGY Inc. |