CN205940867U - Desk -top fluid pressure calibrator - Google Patents

Abstract

The utility model provides a desk -top fluid pressure calibrator, the liquid that is linked together including the stock solution cup of base, storage fluid pressure medium, with the stock solution cup makes the press pump, the liquid stream pipeline in the base of distributing, the fine -tuning who is linked together with the liquid stream pipeline, the pressure instrument connector and the stabilizer blade that are linked together with the liquid stream pipeline. This calibrator internal integration sets up the liquid stream pipeline, and fabrication hole, the port of liquid stream pipeline are directly sealed with resistant pressurization head, can carry high pressure heater worker, assembly efficiency by a wide margin to eliminate the leakage hidden danger that external tube coupling brought, return and to be provided with first filter between liquid stop valve and the pressure pipeline of system, easily dismantle and change, prevent to be examined the impurity contamination pump body and the liquid medium of watchband, can effectively improve the life that the press pump was made to liquid, setting up the pre -compaction stop valve and being used for cuting the connection that press pump and the pressure pipeline of system were made to liquid, the stability of better assurance liquid pressure pipeline pressure is eliminated liquid and is made the leakage problem that the press pump brought.

Description

A kind of desk type liquid pressure validator

Technical field

The utility model belongs to pressure tool instrument check field, is related to liquid pressure checker and in particular to one kind can Continuously quickly make pressure, there is the desk type liquid pressure validator of more preferable stability and reliability.

Background technology

Pressure measurement utensil is required for forcing periodically to be examined and determine, and determines the accuracy of pressure measurement.Pressure validator leads to Often need to have to make the functions such as pressure, pressure control, pressure regulation, to realize the inspection to pressure measurement utensil and check and correction.Pocket gas pressure Through exploitation for many years, through market test, very well, pocket pressure validator is mainly used in field instrument to power verification product for repercussion Verification it is adaptable to the application scenario of little pressure limit, be unsatisfactory for the verification demand of laboratory relatively high-volume manometer.

Desk type liquid pressure validator in the market is usually metal sheet Bending Processing and becomes verification platform, by outer Pipeline is coupled together by adapter road and connecting seat with seal nipple, forms sealing pipeline.Realize pressure checking function.Typically make Make pressure device, micromatic setting, control valve etc. with single-stage and connect the overall checker of formation.First, this kind of liquid pressure checker pipe Road connects complexity, needs design to have the connecting seat of special interface, arranges various connecting lines, and especially some specific occasions need When using hard tube, many places need to use jointing, bring assembly difficulty；Need to design structure and the chi of various bridge pieces Very little to meet connection requirement；In addition, when pipeline connects, it usually needs use a large amount of connectors, connector, as seal member, leads to When being often main leakage position, particularly high pressure, the seal nipple of high reliability is necessarily accompanied with high manufacturing cost； The consumption of assembly work is also the further drawback of connecting line.Secondly, such checker is generally without filter, Yi Shoujie The pollution of the carried impurity of the tested instrument of matter complicated component, affects the checker life-span；The damage to overall pipeline for the uncontrollable pollution, Cause whole machine maintenance, after increasing filter, form maintenance point, increase whole machine service life.

Utility model content

The purpose of this utility model is, not enough provides one kind can continuously Quick-pressing, simple to operate, user for above Just, there is the desk type liquid pressure validator of high reliability.

The problems referred to above of the present utility model are solved by technical scheme below：

A kind of desk type liquid pressure validator, including base, the liquid storing cup of storage liquid pressure medium, is connected with liquid storing cup Logical liquid makes press pump, the liquor stream pipeline being distributed in base is connected with liquor stream pipeline micro-adjusting mechanism and liquor stream pipeline phase The manometer connector of connection and leg, liquid is made press pump and is connected with liquor stream pipeline by a pre- pressure cutoff valve；Described liquid Flow tube road includes system pressure pipeline, base liquid feeding pipeline and liquid back pipe road, and system pressure pipeline and liquid back pipe road are passed through one time Liquid stop valve connects, and base liquid feeding pipeline connects liquid storing cup and liquid makes the pump housing of press pump, and makes the internal liquid of press pump by liquid Body pipeline is connected to system pressure pipeline, and the fabrication hole of described liquor stream pipeline and port position are sealed with high-pressure-resistant sealed plug.

In above-mentioned desk type liquid pressure validator, described system pressure pipeline includes the first system force pipe being sequentially communicated Road, second system pressure piping, the 3rd system pressure pipeline, the 4th system pressure pipeline and the 5th system pressure pipeline, the 4th It is provided with the first filter, the 5th pressure piping passes through described time liquid at system pressure pipeline and the 5th system pressure pipeline connection Stop valve is connected with liquid back pipe road.

In above-mentioned desk type liquid pressure validator, described manometer connector is included for connection standard manometer First connector and for connecting the second connector of tested manometer, the first connector is arranged on second system pipeline and the On the connecting seat of three system pipeline intersections；Second connector is provided with two, is located at just going up of the 4th system pressure pipeline respectively Fang Bingyu the 4th system pressure pipeline is connected.

In above-mentioned desk type liquid pressure validator, in described connecting seat, it is provided with T-shaped connecting line, described connecting line one End is connected with the first connector pipeline of the first connector, another two ends respectively with second system pressure piping and micro-adjusting mechanism Fine setting chamber is connected.

In above-mentioned desk type liquid pressure validator, the base of described liquid storing cup bottom is provided with and is connected with base liquid feeding pipeline Logical pipeline, liquid storing cup cavity is provided with one second filter with the base liquid feeding pipeline place of being connected.

In above-mentioned desk type liquid pressure validator, described liquid is made press pump and is provided with imbibition pipeline and drain line, described Imbibition pipeline is connected with described base liquid feeding pipeline, the liquid in liquid storing cup sequentially pass through the second filter, base liquid feeding pipeline, Imbibition pipeline enters liquid and makes in the pump housing of press pump；Described drain line includes make that press pump pump body is connected with liquid One drain line and the second drain line being connected with system pressure pipeline, are provided with described precompressed and cut between two drain line Only valve.

In above-mentioned desk type liquid pressure validator, the drain side on described liquid back pipe road is provided with an exhaust chamber, described exhaust chamber Openend equipped with the second plug in order to exhaust chamber to be sealed, exhaust chamber and liquid storing cup adjacent are provided with liquid return hole, system pressure Liquid medium in solenoid road is directly over liquid back pipe road, exhaust chamber, liquid return hole enter liquid storing cup.

In above-mentioned desk type liquid pressure validator, the drain side on described liquid back pipe road is provided with an exhaust chamber, described exhaust chamber Openend be provided with discharge opeing interface, described discharge opeing interface is provided with one the 3rd drain line, the pressure in system pressure pipeline Medium is discharged through liquid back pipe road, discharge opeing interface and the 3rd drain line.

In above-mentioned desk type liquid pressure validator, described leg is provided with four, is separately positioned on four corners of base, bottom Four corners bottom of seat is respectively provided with screw, and four leg tops have the screw thread matching with described screw.

Using above technical scheme, the utility model has following technique effect：(1) base of the present utility model is light The plank frame that matter, high reliability material are made, is internally integrated setting liquor stream pipeline, on liquor stream pipeline, fabrication hole, port are direct With the sealing of high-pressure-resistant sealed head, processing, efficiency of assembling can be increased substantially, and it is hidden to eliminate the leakage that external pipeline connection brings Suffer from；(2) being provided with the system pressure pipeline of liquor stream pipeline front end going back to liquid stop valve place can be from the first of outside installation Filter, it is easy to dismounting and replacing, makes the impurity here that tested instrument is brought be assembled, is back to liquid storing cup again after filtration, Prevent the impurity that tested watchband comes from polluting the pump housing and liquid medium, the service life that liquid makes press pump can be effectively improved；(3) arrange Pre- pressure cutoff valve makes press pump and the connection of system pressure pipeline for blocking liquid, preferably ensures liquid pressure pipeline pressure Stable, eliminate liquid and make the leakage problem that press pump brings；(4) the desk-top pressure validator reliable operation of integrated design, produces Efficiency improves.

Brief description

Fig. 1 is three-dimensional structure diagram of the present utility model；

Fig. 2 is top view of the present utility model；

Fig. 3 is along the A-A in Fig. 2 to the partial section intercepting；

Fig. 4 is the partial section intercepting along the B-B direction in Fig. 2；

Fig. 5 is along the D-D in Fig. 2 to the partial section intercepting；

Fig. 6 is along the C-C in Fig. 2 to the partial section intercepting；

Fig. 7 is along the E-E in Fig. 2 to the partial section intercepting；

Fig. 8 is along the F-F in Fig. 2 to the partial section intercepting；

Fig. 9 is front view of the present utility model and partial sectional view；

Figure 10 is the three-dimensional structure diagram at another visual angle of the present utility model；

Figure 11 is top view of the present utility model and partial sectional view；

Figure 12 is along the L-L in Figure 11 to the partial section intercepting；

Figure 13 is along the M-M in Figure 11 to the partial section intercepting.

In figure reference is expressed as：

01：Base；

02：Liquid makes press pump, and 021：Pump case, 022：Pump case lid, 023：Piston rod, 024：Depression bar, 025：Pipette Road；026：First drain line, 027：Second drain line；

03：Liquid storing cup, 031：Cup, 032：Fixing nail, 033：Bowl cover, 034：Breather plug, 035：Fluid injection passage；

04：Pre- pressure cutoff valve；

05：Return liquid stop valve；

06：First filter；

07：Leg；

08：Micro-adjusting mechanism, 081：Fine setting piston, 082：Trimming hand wheel, 083：Fine setting chamber；

09：Manometer connector, 091：First connector, 0911：First connector pipeline, 0912 head rod, 0913：Attaching nut；0914 first plug；092：Second connector, 0921：Second connector pipeline, 0922：Connect liquid cup, 0923：Second connecting rod；

10：Second plug；

11：Discharge opeing interface, 111：3rd drain line；

12：System pressure pipeline, 121：The first system pipeline, 122：Second system pipeline, 123：3rd system pipeline, 124：4th system pipeline, 125：5th system pipeline；

13：High-pressure-resistant sealed plug；

14：Second filter；

15：Base liquid feeding pipeline；

16：Liquid back pipe road, 161：Exhaust chamber；

17：Connecting seat；171：Connecting seat pipeline；

18：Liquid return hole.

Specific embodiment

Below in conjunction with the drawings and specific embodiments, desk type liquid pressure validator of the present utility model is carried out specifically Bright.

As shown in Figure 1, Figure 2 or shown in Figure 10, Figure 11, it is one kind of desk type liquid pressure validator provided by the utility model Embodiment, this desk type liquid pressure validator includes base 01, the liquid storing cup 03 of storage liquid pressure medium and liquid storing cup 03 Press pump 02, the liquor stream pipeline being distributed in base 01 and liquor stream pipeline phase are made by the liquid that base liquid feeding pipeline 15 is connected The micro-adjusting mechanism 08 of connection and the manometer connector 09 being connected with liquor stream pipeline and leg 07, liquor stream pipeline includes System pressure pipeline (liquid pressure pipeline) 12, base liquid feeding pipeline 15 and liquid back pipe road (returning liquid stop valve to liquid storing cup pipeline) 16, wherein：

See figures.1.and.2 and combine Figure 10 and Figure 11, base 01 is plate body, the liquor stream pipeline opening up inside plate body includes System pressure pipeline 12, base liquid feeding pipeline 15 and liquid back pipe road 16, system pressure pipeline 12 is by the first system being sequentially communicated Pressure piping 121, second system pressure piping 122, the 3rd system pressure pipeline 123, the 4th system pressure pipeline 124 and the 5th System pressure pipeline 125 forms, and each part is coupled together formation peripheral passage, pipeline fabrication hole and pipeline end by above-mentioned each pipeline Mouth position high-pressure-resistant sealed plug 13 seals, and prevents liquid leakage；Four corners of base 01 downside are respectively provided with screw, four Leg 07 top has the screw thread matching with described screw, by adjust four legs 07 be screwed into the whole base of depth adjustable 01 Levelness.

With reference to Fig. 1 or Figure 10, Fig. 2 or Figure 11 and Fig. 5, liquid storing cup 03 is fixed on base 01, including cup 031, admittedly Surely nail 032, bowl cover 033, breather plug 034 and fluid injection passage 035, the sealing of cup 031 lower end is embedded in base 01, bowl cover 033 center is provided with a U-shaped counterbore wide at the top and narrow at the bottom, and the wall portion of U-shaped counterbore is provided with fluid injection passage 035, U-shaped counterbore Bottom is provided with a circular hole, and this circular hole forms stepped hole with U-shaped counterbore, and fixing nail 032 is tightened in base 01 by this stepped hole On, make bowl cover 033 compress cup 031 upper end, cup 031 lower end is pressed on base 01 in respective slot so that liquid storage simultaneously Cup 03 is internally formed the space of sealing in order to store liquid medium；Breather plug 034 is arranged on U-shaped hole top, takes off breather plug 034 Liquid medium can be injected in U-shaped counterbore is to liquid storing cup 03.The base 01 of liquid storing cup 03 bottom is provided with base liquid feeding pipeline 15, liquid storing cup 03 cavity is provided with the second filter 14, the liquid of liquid storing cup 03 memory storage with base liquid feeding pipeline 15 place of being connected Body pressure medium enters base liquid feeding pipeline 15 after the second filter 14 filtration, in this embodiment, by this filter Setting, can prevent that pollutant or impurity from entering in liquid pipeline blocking or pollution liquid makes each flow tube road in press pump 02 it is ensured that this Utility model reliably working.

As shown in Fig. 2, Fig. 3 and Fig. 5 or Figure 11, Figure 12 and Figure 13, liquid is made press pump 02 and is included housing 021, case lid 022nd, (this makes pressure for piston 023, depression bar 024 and the press mechanism of making in the cavity that housing 021 and case lid 022 are formed The structure of mechanism and operation principle refer to the related content of the application for a patent for invention that application publication number is CN105443457A), Liquid is made and is provided with imbibition pipeline (liquid pressure pump liquid feeding pipeline) 025 on the housing 021 of press pump 02, enters base liquid feeding pipeline Liquid medium in 15 can enter liquid by imbibition pipeline 025 and make in the pump housing of press pump 02；It is arranged in the discharge opeing on housing 021 Pipeline includes L-shaped the first drain line 026 being connected with pump body and the L-shaped second being connected with system pressure pipeline 12 Drain line (liquid pressure pump output pipe) 027, is provided with pre- pressure cutoff valve 04, makes press pump in liquid between two drain line 02 liquid medium made after being pressurized in press mechanism sequentially passes through the first drain line 026, pre- pressure cutoff valve 04 and the second discharge opeing Pipeline 027, enters the system pressure pipeline 12 in base 01.

Wherein, when pre- pressure cutoff valve 04 is opened, through liquid make press pump 02 make the liquid pressure medium of pressure can be through the second discharge opeing Pipeline 027 enters system pressure pipeline 12；When pre- pressure cutoff valve 04 is closed, the first drain line 026 and the second drain line 027 Disconnect, the effect that liquid makes press pump 02 no longer produces impact to the pressure in system pressure pipeline 12.Meanwhile, system pressure pipeline Be trimmed off in 12 that the high-pressure liquid medium after mechanism 08 supercharging no longer acts on that liquid makes press pump 02 makes press mechanism, has protection Liquid makes the effect of press pump 02, also can prevent pressure fluid in system pressure pipeline 12 from making leakage at press pump 02 from liquid simultaneously, Thus improving the stability of fluid pressure in system pressure pipeline 12.

In conjunction with shown in Fig. 1, Fig. 2, Fig. 7 and Fig. 9, set in the intersection of second system pipeline 122 and the 3rd system pipeline 123 It is equipped with connecting seat 17, in connecting seat 17, be provided with T-shaped connecting line 171.Connecting seat 17 top is provided with the first connector 091, First connector 091 is made up of head rod 0912, connection head nut 0913 and the first plug 0914, head rod 0912 It is internally provided with the first connector pipeline 0911, this pipeline one end is connected with connecting line 171, can be by when the other end does not use First plug 0914 seals；During use, remove the first plug 0914, connect manometer；The other two ends of connecting line 171 are divided Do not connect with the fine setting chamber 083 of second system pressure piping 122 and micro-adjusting mechanism 08.First connector is commonly used to connect verification During using the normal pressure instrument arriving, when being verified using the utility model checker, extract first connector 091 After first plug 0914, instrument (usually standard scale) is connected and close with head rod 0912 by attaching nut 0913 Envelope.

As shown in Fig. 2 or Figure 11, in micro-adjusting mechanism 08, it is provided with the fine setting chamber 083 being connected with system pressure pipeline 12, The front/rear motion of trimming hand wheel 082 can drive fine setting piston 081 to act on the liquid medium in fine setting chamber 083, thus to system Liquid in pressure piping 12 carries out pressurizeing/decompressing.

With reference to shown in Fig. 2, Fig. 6, Figure 11 and Fig. 9, two the second connectors 092 are arranged on the 4th system pressure pipeline 124 Surface, two the second connectors 092 at a distance of one fixed width it is ensured that after connecting tested table tested table will not encounter or interfere. Second connector 092 includes connecing liquid cup 0922, the second connecting rod 0923, attaching nut 0913 and the first plug 0914, and second even It is provided with the second connector pipeline 0921, its one end is connected with the 4th system pressure pipeline 124, the other end can be by extension bar 0923 One plug 0914 seals.

When being verified using the utility model checker, after extracing the first plug 0914 on the second connector 092, can Instrument (usually tested table) is connected and seals with the second connecting rod 0923 by attaching nut 0913；For the verification of tested table During or verification terminate after when removing pressure gauge, a small amount of liquid medium overflowing from the second connector 092 top can be collected in Connect in liquid cup 0922, prevent liquid medium (can be contaminated after a period of time is usually used) from flowing on base 01, make dirty even dirty Dye base 01 and whole checker.

Tested table generally retains the medium in former use pipeline in commercial Application, easily by former medium pollution, or even band There is the chip producing in impurity and the compression fittings connection procedure in former medium.For preventing tested watchband in checking procedure from coming Impurity, chip pollute the medium in this checker or block pipeline in this checker, the 4th system pressure pipeline on base 01 124 and the 5th system pressure pipeline 125 connectivity part be provided with the first filter 06 (detachable filter)；Flow through the pressure of tested table Power media enters back into the 5th system pressure pipeline 125 after the first filter 06 filtration；First filter 06 is to system pressure pipe Chip in the medium of road, the filtration of impurity effective protection can also return liquid stop valve 05, prevent pollutant or impurity blocking cut-off Via on valve is it is ensured that validity when stop valve is opened and reliability when closing.

As shown in Fig. 1 and Fig. 2 or Figure 10 and Figure 11, the 5th pressure system pipeline 125 passes through back liquid stop valve 05 and is connected to L Shape liquid back pipe road 16.The one end on liquid back pipe road 16 is connected with the 5th pressure system pipeline 125 by returning liquid stop valve 05, the other end It is connected with discharge opeing tube chamber 161.The pressure medium returning in system pressure pipeline 12 when liquid stop valve 05 is opened is directly over liquid back pipe Road 16 returns to liquid storing cup 03 or discharges checker；Return liquid stop valve 05 close, pre- pressure cutoff valve 04 open when, liquid makes press pump 02 Pressure is made to the liquid medium in system pressure pipeline 12；Liquid is made press pump 02 and is made after pressure terminates, and closes pre- pressure cutoff valve 04, with micro- Regulating mechanism 08 is pressure medium supercharging in system pressure pipeline 12, and this mode can preferably ensure the stability of system pressure, It is applied to the verification of high-precision meter.

As schemed shown in (a) and figure (b) in Fig. 8, the drain side on liquid back pipe road 16 is provided with exhaust chamber 161, exhaust chamber 161 and storage Liquid cup 03 adjacent is provided with liquid return hole 18；When using the second plug 10 (tapping valve) sealing row as shown in the figure (a) in Fig. 8 During sap cavity 161, open back liquid stop valve 05, the liquid medium in system pressure pipeline 12 is directly over liquid back pipe road 16, discharge opeing Chamber 161, liquid return hole 18 enter liquid storing cup 03, and checker liquid medium pipeline forms closed loop；When the second plug 10 be replaced by as When scheming the discharge opeing interface 11 shown in (b) in Fig. 8, exhaust chamber 161 is disconnected by the sealing ring of discharge opeing interface 11 front end with leakage fluid dram 18 And seal, open back liquid stop valve 05, the pressure medium in system pressure pipeline 12 through liquid back pipe road 16, discharge opeing interface 11 with And the 3rd drain line 111 discharge checker, the single cycle of checker liquid medium pipeline formation open loop, eliminate and retain former pipeline The pollution of the tested manometer of medium, thus avoiding the mutual pollution bringing between tested manometer, meeting more use will Ask.

Each part assembles according to above-mentioned annexation and forms desk type liquid pressure validator of the present utility model, this school above Test device and be internally integrated setting liquor stream pipeline, it passes through liquor stream pipe joint, port adopts the sealing of high-pressure-resistant sealed head, in liquid pressure In solenoid road, setting filter and the measure such as liquid stop valve and pre- pressure cutoff valve that arranges back ensure liquid pressure pipeline pressure Stable, improve liquid and make the service life of press pump it is ensured that the reliability of this checker work.

Before the utility model is started working, need to be connected pressure tapping 09 with pressure gauge, concrete connection procedure is as follows：

Take off the first plug 0914 on first pressure meter connector 091, with attaching nut 0913 by master gauge and One connecting rod 0912 connects, and makes to be formed sealing between master gauge and head rod 0912；Take off one or two second Tested pressure gauge is connected with the second connecting rod 0923 by the first plug 0914 of pressure tapping 092 with attaching nut 0913, and Make to be formed sealing between master gauge and head rod 0912, when only one of which second pressure meter connector 092 is connected with tested table When connecing it is ensured that on another second pressure meter connector 092 first plug 0914 be connected and seal with the second connecting rod 0923；First Pressure tapping 091 is mainly used in connection standard table, but is not limited only to connection standard table, and second pressure meter connector 092 is mainly used In the tested table of connection, but it is not limited only to connect tested table.

When carrying out the liquid pressure release of system pressure pipeline 12, it is first turned on back liquid stop valve 05, system pressure pipeline 12 Interior liquid medium is flowed into back in liquid stop valve 05 by the first filter 06, then returns to liquid storing cup 03 by liquid pipeline 16, or It is expelled directly out by discharge opeing interface 11.

When liquid is made press pump 02 imbibition and made pressure, the liquid medium of liquid storing cup 03 passes through the second filter 14, supplies through base The imbibition pipeline 025 that liquid pipeline 15, liquid make press pump 02 enters liquid and makes and carry out in the pump housing of press pump 02 making pressure.This liquid makes pressure Pump 02 is liquid continuous pressure booster body, meets low pressure and mass flow, high pressure labour-saving characteristic, and quickly providing for pressure checking needs The precompressed fluid pressure wanted.

It will be appreciated by those skilled in the art that these embodiments are merely to illustrate the utility model and do not limit this practicality newly The scope of type, the various equivalent variations that the utility model is made and modification belong to the utility model disclosure.

Claims (9)

1. a kind of desk type liquid pressure validator, the liquid storing cup including base, storage liquid pressure medium is connected with liquid storing cup Liquid make press pump, the liquor stream pipeline being distributed in base, the micro-adjusting mechanism being connected with liquor stream pipeline, be connected with liquor stream pipeline Logical manometer connector and leg pass through a pre- pressure cutoff valve with liquor stream pipeline even it is characterised in that liquid makes press pump Connect；Described liquor stream pipeline includes system pressure pipeline, base liquid feeding pipeline and liquid back pipe road, system pressure pipeline and liquid back pipe road Connected by a liquid stop valve, base liquid feeding pipeline connects liquid storing cup and liquid makes the pump housing of press pump, and makes pressure by liquid Pump internal liquid pipeline is connected to system pressure pipeline, and the fabrication hole of described liquor stream pipeline and port position are blocked up with high-pressure-resistant sealed Head sealing.

2. desk type liquid pressure validator according to claim 1 it is characterised in that described system pressure pipeline include according to The first system pressure piping of secondary connection, second system pressure piping, the 3rd system pressure pipeline, the 4th system pressure pipeline and 5th system pressure pipeline, is provided with the first filter at the 4th system pressure pipeline and the 5th system pressure pipeline connection, the Five pressure pipings are connected with liquid back pipe road by described time liquid stop valve.

3. desk type liquid pressure validator according to claim 2 is it is characterised in that described manometer connector includes The first connector for connection standard manometer and the second connector for connecting tested manometer, the first connector It is arranged on second system pipeline and the connecting seat of the 3rd system pipeline intersection；Second connector is provided with two, is located at respectively The surface of the 4th system pressure pipeline is simultaneously connected with the 4th system pressure pipeline.

4. desk type liquid pressure validator according to claim 3 is it is characterised in that be provided with T-shaped in described connecting seat Connecting line, described connecting line one end is connected with the first connector pipeline of the first connector, and another two ends are respectively with second System pressure pipeline is connected with the fine setting chamber of micro-adjusting mechanism.

5. the desk type liquid pressure validator according to any one of Claims 1-4 is it is characterised in that described liquid storing cup bottom The base in portion is provided with the pipeline being connected with base liquid feeding pipeline, and liquid storing cup cavity is arranged with the base liquid feeding pipeline place of being connected There is one second filter.

6. desk type liquid pressure validator according to claim 5 is provided with suction it is characterised in that described liquid makes press pump Liquid pipeline and drain line, described imbibition pipeline is connected with described base liquid feeding pipeline, and the liquid in liquid storing cup sequentially passes through Tow filtrator, base liquid feeding pipeline, imbibition pipeline enter liquid and make in the pump housing of press pump；Described drain line includes making with liquid The first drain line and the second drain line being connected with system pressure pipeline that press pump pump body is connected, two discharging tubes It is provided with described pre- pressure cutoff valve between road.

7. desk type liquid pressure validator according to claim 6 is it is characterised in that the drain side on described liquid back pipe road sets There is an exhaust chamber, equipped with the second plug in order to seal exhaust chamber, exhaust chamber is adjacent with liquid storing cup for the openend of described exhaust chamber Place is provided with liquid return hole, and the liquid medium in system pressure pipeline is directly over liquid back pipe road, exhaust chamber, liquid return hole enter liquid storage Cup.

8. desk type liquid pressure validator according to claim 6 is it is characterised in that the drain side on described liquid back pipe road sets There is an exhaust chamber, the openend of described exhaust chamber is provided with discharge opeing interface, and described discharge opeing interface is provided with one the 3rd drain line, Pressure medium in system pressure pipeline is discharged through liquid back pipe road, discharge opeing interface and the 3rd drain line.

9. the desk type liquid pressure validator according to any one of Claims 1-4 is it is characterised in that described leg is provided with Four, be separately positioned on four corners of base, four corners bottom of base is respectively provided with screw, four leg top have with The screw thread that described screw matches.