CN206876153U - The hydrostatic level of based single crystal silicon differential pressure pick-up - Google Patents
The hydrostatic level of based single crystal silicon differential pressure pick-up Download PDFInfo
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- CN206876153U CN206876153U CN201720271378.4U CN201720271378U CN206876153U CN 206876153 U CN206876153 U CN 206876153U CN 201720271378 U CN201720271378 U CN 201720271378U CN 206876153 U CN206876153 U CN 206876153U
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Abstract
The utility model is specifically related to a kind of hydrostatic level of based single crystal silicon differential pressure pick-up, including upper shell, lower casing and bellows-type monocrystalline silicon differential pressure pick-up, upper shell and lower casing surround the installation cavity of closing；Installation cavity is divided into interconnected right installation cavity and left installation cavity；The main body of bellows-type monocrystalline silicon differential pressure pick-up is fixedly mounted in right installation cavity, the afterbody of bellows-type monocrystalline silicon differential pressure pick-up is located in left installation cavity, right installation cavity is separated into independent mutually sap cavity and air cavity by bellows-type monocrystalline silicon differential pressure pick-up, and left installation cavity and right installation cavity are isolated into mutual disconnected separate chamber, the inlet connected with sap cavity is offered in the side wall of upper shell, the air inlet connected with air cavity is offered in the side wall of lower casing.Hydrostatic level of the present utility model employs bellows-type monocrystalline silicon differential pressure pick-up, and entirety is with small volume, precision is high, easily realize minute-pressure, long-time stability are good, temperature characterisitic is excellent.
Description
Technical field
The utility model is specifically related to a kind of hydrostatic level of based single crystal silicon differential pressure pick-up.
Background technology
Hydrostatic level is a kind of high-accuracy level measuring instrument, for the relative of Fundamentals of Measurement and each measuring point of building
Sedimentation, applied to building, including Hydroelectric Plant, dam, high-rise, nuclear power station, water-control project, railway,
The measurement of each measuring point differential settlement such as subway, high ferro.Traditional static level instrument system passes through measurement using law of connected vessels
Liquid level changes to measure change in displacement.Measuring principle is to utilize the whole system liquid level equilibrium of law of connected vessels, measuring point liquid level meeting
Change with change in displacement, changed by measuring measuring point liquid level so as to measure change in displacement.Conventional principle measuring range is direct
It is related to volume, want measurement wide range and have to high volume；Liquid flowing has hysteresis, after only system liquid level thoroughly balances
Measurement result is just effective, and this is resulted in, and system response time is slower, and the general response time was at 10 minutes or so；And traditional is quiet
The installation of power spirit level can only be vertically-mounted along liquid level direction.These shortcomings of traditional instrument directly result in sinks in such as railroad rail
Drop monitoring, bridge dynamic displacement monitoring, steel tower settlement monitoring etc. need that dynamic monitoring, installing space are small, installation direction is random
The application of occasion be greatly limited.Therefore, the hydrostatic level measured using pressure field principle starts to occur,
This hydrostatic level is mainly by the use of differential pressure pick-up as pressure acquisition devices, and temperature characterisitic is excellent, and stability is good, and reaction is fast
Speed.
Some follow-on static(al) measurement apparatus in the prior art be present, in Patent No. 201520614833.7
State's utility model patent discloses a kind of hydrostatic level, and it includes body, and the body is provided with pressure measuring cavity and electric chamber, positioned at big
Two side walls of the pressure measuring cavity of gas side are respectively equipped with water inlet and delivery port, and the hydrostatic level also includes：Pressure sensor,
The electric intracavitary is arranged at, and the pressure sensor is used to measure the pressure in the pressure measuring cavity；Amplification circuit module, it is arranged at this
Electric intracavitary, and the amplification circuit module is removably attachable to the body, the amplification circuit module and pressure sensor electricity
Connection；Seal modules, it is arranged on the body, and opening of the seal modules for sealing the pressure measuring cavity.
This hydrostatic level measurement accuracy is higher than the precision of traditional measurement system, and the reaction time is fast, but still suffers from one
A little defects, using diffusion silicon core body pressure sensor, volume is bigger, and the external interface of whole hydrostatic level is more, no
Beneficial to the volume for reducing hydrostatic level, discharge gas is carried out with air bleeding valve, it is necessary to the widget such as Passscheiben, therefore repeatedly make
With rear, fragile, stability is poor.Bonnet is sealed using sealing ring and notch, and sealing intensity is not high enough.
In consideration of it, designing a kind of more small volume and less weight of volume, economical and practical, exhaust gear stability is good, exhaust and convenient, no
Fragile, integrated connection air-tightness is good, fastening strength is good, easily facilitates the hydrostatic level installed and used, has important application
Value.
Utility model content
In order to further reduce the volume of hydrostatic level, the stability for reducing cost of manufacture, increasing exhaust gear, change
Enter air-tightness, improve fastening strength and easily facilitate and install and use, the utility model provides a kind of based single crystal silicon differential pressure and passed
The hydrostatic level of sensor.The technical problems to be solved in the utility model is achieved through the following technical solutions：
A kind of hydrostatic level of based single crystal silicon differential pressure pick-up, including upper shell, lower casing and bellows-type monocrystalline silicon
Differential pressure pick-up, the upper shell and lower casing surround the installation cavity of closing after being fixedly connected by stud；
The installation cavity is by the first lug boss and the lower casing internal side wall in the upper enclosure side wall
Second lug boss is divided into interconnected right installation cavity and left installation cavity, and first lug boss and the second lug boss are relative to be set
Put；
The main body of the bellows-type monocrystalline silicon differential pressure pick-up is fixedly mounted in right installation cavity, the bellows-type monocrystalline silicon
The afterbody of differential pressure pick-up is located in the left installation cavity, and right installation cavity is separated into by the bellows-type monocrystalline silicon differential pressure pick-up
Independent sap cavity and air cavity mutually, and the left installation cavity and the right installation cavity are isolated into mutual disconnected separate chamber；
The sap cavity is located to be located at close to the lower casing side close to the upper shell side, the air cavity；
The inlet connected with the sap cavity is offered in the side wall of the upper shell, is opened up in the side wall of the lower casing
There is the air inlet connected with the air cavity.
More specifically, in hydrostatic level of the present utility model, the H end pressures of the bellows-type monocrystalline silicon differential pressure pick-up
Diaphragm is fully contacted for experiencing the pressure in sap cavity with the sap cavity, and L end pressures diaphragm fully contacts with the air cavity to be used for
Experience the pressure in air cavity.
More specifically, in hydrostatic level of the present utility model, steam vent, the exhaust are additionally provided with the upper shell
Hole connects with the sap cavity, for discharging the bubble in sap cavity.
More specifically, in hydrostatic level of the present utility model, the steam vent is sealed with bulb jackscrew.
More specifically, in hydrostatic level of the present utility model, form is additionally provided with the upper shell, is pacified at the form
Equipped with the transparent lucite with the form form fit.
More specifically, in hydrostatic level of the present utility model, first is provided between the lucite and the form
Sealing ring, be sequentially provided between the H ends of the bellows-type monocrystalline silicon differential pressure pick-up and the lucite the second sealing ring and
Circular apical ring, there is through hole on the apical ring, the through hole is interconnected with the steam vent on upper shell；
The sap cavity passes through H ends, the second sealing ring, the top of the bellows-type monocrystalline silicon differential pressure pick-up mutually compressed successively
Ring, lucite, the first sealing ring, form realize sealing；
The 3rd sealing ring, the gas are provided between the L ends of the lower casing and the bellows-type monocrystalline silicon differential pressure pick-up
Chamber passes through the L ends realization sealing of the lower casing, the 3rd sealing ring, bellows-type monocrystalline silicon differential pressure pick-up that mutually compress successively.
More specifically, in hydrostatic level of the present utility model, four Angle Positions on the inside of the upper shell are equipped with one
Individual tapped blind hole；
Four Angle Positions of the lower casing are respectively provided with a stair-stepping tapped through hole, the tapped through hole inside diameter
It is smaller and consistent with the tapped blind hole diameter, for installing fixed bolt, the upper shell of connection fastening and lower casing；
Aperture is larger on the outside of the tapped through hole, for hydrostatic level to be fixed on into measurement point.
More specifically, in hydrostatic level of the present utility model, offered in the air inlet opposing sidewalls of the lower casing
Wire hole, the wire hole are stainless steel waterproof cable-through hole, the cable for link information collecting device.
More specifically, in hydrostatic level of the present utility model, antirust oil reservoir is scribbled on the inwall of the sap cavity.
More specifically, in hydrostatic level of the present utility model, in addition to circuit board, the circuit board turn provided with signal
Change/amplifying circuit, the output end of the input of the signal amplification circuit and the bellows-type monocrystalline silicon differential pressure pick-up afterbody
Cable connection, the output end of the signal amplification circuit electrically connect with information collecting device.
On the other hand, the utility model additionally provides a kind of static(al) water including hydrostatic level described in the utility model
Locating tab assembly system.
The beneficial effect of hydrostatic level of the present utility model：
1st, the bellows-type monocrystalline silicon differential pressure pick-up selected possesses：Small volume, precision are high, and cost is low, easily realizes minute-pressure, length
Phase stability is good, the features such as not being affected by temperature.
2nd, there was only one air inlet of an inlet and a wire hole on shell, reduction is easily facilitated in structure design
The volume of hydrostatic level, make overall structure more compact, it is portable；
3rd, set on upper shell and transparent lucite form is installed, be easy to timely during pouring liquid in measurement
Observation finds to whether there is bubble in static(al) measuring instrument, steam vent is additionally provided with upper shell, coordinates when installing in sap cavity inwall, makes
The bubble obtained in sap cavity can be timely and conveniently discharged, and avoid measurement error, measurement accuracy height；
4th, steam vent is sealed with bulb jackscrew, compared in the prior art with the flat mouth of air bleeding valve or encryption packing
Jackscrew sealing means, without easily worn part, structure is simpler, and stability is more preferable；
5th, sap cavity inwall scribbles antirust oil reservoir, is more conducively vented, and can also improve the service life of hydrostatic level；
6th, there is stair-stepping tapped through hole on lower casing, can both realize the fastening between shell and lower casing, together
When can also more easily realize fastening between hydrostatic level and measuring point；The installation direction and method of hydrostatic level nor
Chang Suiyi, it is not necessary to which vertically-mounted along liquid level direction, the scope of application is more extensive.
The utility model is described in further details below with reference to drawings and Examples.
Brief description of the drawings
Fig. 1 is the explosive view of the utility model hydrostatic level；
Fig. 2 is the exterior lateral sides view of the utility model hydrostatic level；
The profile for the utility model hydrostatic level that Fig. 3 is；
Fig. 4 is the upper outer casing construction drawing of the utility model hydrostatic level；
Fig. 5 is the A-A profiles of the upper shell of the utility model hydrostatic level；
Fig. 6 is the structure chart of the lower casing of the utility model hydrostatic level；
The B-B profiles of the lower casing of Fig. 7 the utility model hydrostatic levels.
In figure：
The upper shells of 1-, 11- inlets, 12 feed tubes, 13- steam vents, 14- bulbs jackscrew, 15- forms, the organic glass of 16-
Glass, the sealing rings of 161- first, the sealing rings of 162- second, the sealing rings of 163- the 3rd, 17- apical rings, 18- tapped blind holes；2- lower casings,
21- air inlets, 22- air inlet pipe, 23- wire holes, 24- tapped through holes；3- bellows-type monocrystalline silicon differential pressure pick-up, 31- main bodys,
32- afterbodys, 33-H end pressures diaphragm, 34-L end pressure diaphragms；The right installation cavity of 4- installation cavitys, 41-, the left installation cavitys of 42-, 43- liquid
Chamber, 44- air cavitys；5- circuit boards；The lug bosses of 6- first；The lug bosses of 7- second.
Embodiment
For the technological means and effect that the utility model is reached predetermined purpose and taken is expanded on further, below in conjunction with accompanying drawing
And embodiment describes in detail as follows to specific embodiment of the present utility model, architectural feature and its effect.
Embodiment 1：
The hydrostatic level of based single crystal silicon differential pressure pick-up as shown in Figure 1-Figure 3, outward appearance are that four angles are in arc chord angle
Cuboid, shell formed using stainless steel material milling, including upper shell 1, lower casing 2 and bellows-type monocrystalline silicon differential pressure sensing
Device 3, upper shell 1 and lower casing 2 surround the installation cavity 4 of closing after being fixedly connected by stud.Upper shell 1, the profile of lower casing 2
It is cuboid, respectively there are a pair of position correspondences and to centerline in the long side opposing sidewalls of upper shell 1 and lower casing 2
The lug boss of extension；In the upper internal side wall of shell 1 for the first lug boss 6, in the internal side wall of lower casing 2 for the second lug boss
7, the first lug boss 6 and the second lug boss 7 that installation cavity 4 is oppositely arranged are divided into interconnected right installation cavity 41 and left installation
Chamber 42.
Bellows-type monocrystalline silicon differential pressure pick-up 3 is made up of columned main body 31 and the afterbody 32 with cable, bellows
The main body 31 of formula monocrystalline silicon differential pressure pick-up 3 is fixedly mounted in right installation cavity 41, the tail of bellows-type monocrystalline silicon differential pressure pick-up 3
Portion 32 is located in left installation cavity 42, and right installation cavity 41 is separated into sap cavity independent mutually by bellows-type monocrystalline silicon differential pressure pick-up 3
43 and air cavity 44, and left installation cavity 42 and right installation cavity 41 are isolated into mutual disconnected separate chamber.Sap cavity 43 is positioned at close
The upper side of shell 1, air cavity 44 are located at close to the side of lower casing 2；The feed liquor connected with sap cavity 43 is offered in the side wall of upper shell 1
Mouthfuls 11, the air inlet 21 connected with air cavity 44 is offered in the side wall of lower casing 2.
In order to reduce the volume of hydrostatic level, the bore of air inlet and inlet is less than currently used hydrostatic level
On inlet bore, bore 6-10mm can be selected.The bore of air inlet and inlet is 6mm in the present embodiment.
In use, being pacified on inlet with stainless steel sealing quick connector in hydrostatic level access Hydrostatic leveling system
Equipped with feed tube, feed tube connects with the liquid chamber of datum mark；On air inlet with stainless steel sealing quick connector be provided with into
Tracheae, air inlet pipe connect with the gas chamber of datum mark.
The main body 31 of bellows-type monocrystalline silicon differential pressure pick-up 3 has H ends (high-pressure side) and L ends (low-pressure end), and H ends are contact
One end of sap cavity 43, to contact one end of air cavity 44, H ends and L ends are respectively provided with pressure-sensitive diaphragm at L ends, wherein, H end pressures diaphragm 33
Fully contacted with sap cavity 43 for experiencing the pressure (high pressure) in sap cavity 43, L end pressures diaphragm 34 fully contacts use with air cavity 44
In experiencing the pressure (low pressure) in air cavity 44.
Also include circuit board 5 in hydrostatic level, circuit board 5 is provided with signal conversion/amplifying circuit, signal amplification circuit
Input and the afterbody 32 of bellows-type monocrystalline silicon differential pressure pick-up 3 output end cable connection, the output end of signal amplification circuit
Electrically connected with information collecting device.Data output form has two kinds of 4-20 mA analog current signals and 485 data signal of standard can
Choosing.Bellows-type monocrystalline silicon differential pressure pick-up 3 and circuit board 5 in the present embodiment are supporting purchase, specially DRS300 models.
Wire hole 23 is offered in the opposing sidewalls of air inlet 21 of lower casing 2, wire hole 23 is stainless steel waterproof cable-through hole,
Cable for link information collecting device.
Embodiment 2：
The present embodiment is particular in that the upper shell 1 of hydrostatic level is provided with form 15 compared with Example 1,
Lucite 16 with the form fit of form 15 is installed at form 15.
In Hydrostatic leveling system, the form for being provided with transparent lucite is set on upper shell, is easy to measuring
When pouring liquid during in time observation find static(al) measuring instrument in whether there is bubble, be additionally provided with steam vent on upper shell, match somebody with somebody
Antirust oil reservoir is smeared in sap cavity inwall so that the bubble in sap cavity can be timely and conveniently discharged, and avoid measuring when closing installation
Error, measurement accuracy are high.
Embodiment 3：
The present embodiment is particular in that compared with Example 1, on the upper shell 1 of hydrostatic level is additionally provided with exhaust
Hole 13, steam vent 13 are connected with sap cavity 43, and for discharging the bubble in sap cavity 43, steam vent 13 is carried out close with bulb jackscrew 14
Envelope, bulb jackscrew are specially with six jackscrews in steel ball in the present embodiment.One layer of antirust is also coated with the inwall of sap cavity 43
Oil reservoir.
In Hydrostatic leveling system, devise steam vent and be used to discharge caused bubble in liquid filling process, make survey
The measurement result of amount system is more accurate, realizes high-acruracy survey.The sealing of steam vent is with the jackscrew with bulb, compared to existing
With air bleeding valve or the flat mouth jackscrew sealing means of encryption packing in technology, without easily worn part, structure is simpler, and stability is more
It is good；On the one hand on the other hand antirust oil reservoir is scribbled on the inwall of sap cavity can increase hydrostatic level in order to exclude bubble
Service life.
Embodiment 4：
The present embodiment is particular in that compared with Example 1, the lucite 16 and form 15 of hydrostatic level it
Between be provided with the first sealing ring 161, be sequentially provided with second between the H ends of bellows-type monocrystalline silicon differential pressure pick-up 3 and lucite 16
Sealing ring 162 and circular apical ring 17, there is through hole, the through hole and the phase of steam vent 13 interconnection on upper shell 1 on apical ring 17
It is logical, sap cavity 43 by the H ends of the bellows-type monocrystalline silicon differential pressure pick-up 3 that mutually compresses successively, the second sealing ring 162, apical ring 17,
Lucite 16, the first sealing ring 161, form 15 realize sealing.The L ends of lower casing 2 and bellows-type monocrystalline silicon differential pressure pick-up 3
Between be provided with the 3rd sealing ring 163, air cavity 44 passes through the lower casing 2, the 3rd sealing ring 163, bellows-type list that mutually compress successively
Realize sealing in the L ends of crystal silicon differential pressure pick-up 3.The first sealing ring, the second sealing ring and the 3rd sealing ring are adopted in the present embodiment
Use silica gel material.
Upper shell, lower house, lucite, bellows-type monocrystalline silicon differential pressure pick-up and apical ring coordinate three sealing rings to realize
The overall compression of hydrostatic level, on the one hand reach the purpose of fixed bellows-type monocrystalline silicon differential pressure pick-up；On the other hand,
The H ends of the bellows-type monocrystalline silicon differential pressure pick-up mutually compressed, the second sealing ring, apical ring, lucite, the first sealing ring and
Lucite is also fastened on the inner side of shell on hydrostatic level by form simultaneously, protrudes sight glass admittedly compared to traditional
It is scheduled on for hull outside, the design method with screw fastening, both additionally need not individually fastens form using screw, reduces again
The overall volume of hydrostatic level.
Embodiment 5：
As shown in Figure 4 to 7, four Angle Positions of the upper inner side of shell 1 are equipped with a tapped blind hole 18；Lower casing 2
Four Angle Positions are respectively provided with a stair-stepping tapped through hole 24, and the inside diameter of tapped through hole 24 is smaller and straight with tapped blind hole 18
Footpath is consistent, and for installing fixed bolt, the upper shell 1 of connection fastening and lower casing 2, the outside aperture of tapped through hole 24 is larger, is used for
Hydrostatic level is fixed on measurement point.
The shell of hydrostatic level is only divided into two parts up and down, and such design one side part is less, is easy to make, makes
With and installation, on the other hand upper shell and lower casing are fastened using stud, fastening strength is bigger, is hardly damaged, adapt to
Violent working environment；And this configuration reduces seam quantity overall on shell, preferably prevents dust from entering static(al)
Inside spirit level, internal components and circuit are protected, is increased the service life.
Embodiment 6：
Hydrostatic level of the present utility model can be used in various Hydrostatic leveling systems, one of which embodiment party
Formula：
Measuring system includes fluid reservoir as a reference point, gas connection pipe, fluid connection tube and at least one static(al) water
Quasi- instrument (as measurement point), fluid reservoir include gas chamber and liquid chamber, and hydrostatic level passes through gas connection pipe and gas
Chamber, and connected by fluid connection tube with liquid chamber, so that the conducting of all gas chamber and pressure in measuring system
Dynamic balance.
The quantity of hydrostatic level at least two, the feed tube of first hydrostatic level connects with fluid connection tube；
The air inlet pipe of first hydrostatic level connects with gas connection pipe；The feed tube of the latter hydrostatic level is also connected with liquid
Pipe connects, and the air inlet pipe of the latter hydrostatic level also connects with gas connection pipe；Gas connection pipe and fluid connection tube end
Close to keep the semi-closed state of system.Air cavity is connected between each hydrostatic level, pressure balance, the pressure root in sap cavity
The different and different of downward or upward displacement are produced according to relative to reference point (fluid reservoir), the hydrostatic level of each measuring point
The cable that differential pressure information passes through in wire hole the information collecting device connected is sent to information collecting device, enters at row information
Reason.
The practical work process measured using hydrostatic level：Fluid reservoir is placed on reference point during measurement, surveyed
Amount point places a hydrostatic level respectively, and by the threading steps hole on upper shell and lower casing, hydrostatic level is fixed
In measuring point, then, the gas chamber of reference point, the air cavity of each hydrostatic level and reference point liquid chamber and each quiet are respectively turned on
The sap cavity of power spirit level, make pressure balance between the air cavity of each hydrostatic level in measuring system；Liquid carries out quick filling.
Observed by transparent lucite form in the sap cavity of the hydrostatic level of each measuring point and whether there is bubble, if bubble,
Unscrew bulb jackscrew to be exhausted, tighten bulb jackscrew after exhaust again, realize that sap cavity seals.
In the hydrostatic level of each measuring point, air cavity is connected, pressure balance, and the pressure in sap cavity is according to relative to reference point
(fluid reservoir) produces the different and different of downward or upward displacement, therefore, the bellows-type monocrystalline silicon in each hydrostatic level
The H end pressures diaphragm (pressure for experiencing sap cavity) of differential pressure pick-up and L end pressures diaphragm (pressure for experiencing air cavity), are received
Pressure it is different, filling silicon oil inside bellows-type monocrystalline silicon differential pressure pick-up, when pressure change, pressure-sensitive diaphragm experience pressure and
Deformation, so as to which differential pressure is transmitted to silicon single crystal wafer by silicone oil, chip can produce to be changed so as to cause resistance variations accordingly, this
Individual change is nursed one's health by the circuit on circuit board and amplification is exported into electric signal.Data output form has 4-20mA analog current signals
It is optional with two kinds of 485 data signal of standard.Finally by cable, metrical information is sent to external information collecting device, finally
Cloud platform is uploaded to, is handled, directly obtains the vertical displacement of measuring point.
The bellows-type monocrystalline silicon differential pressure pick-up that hydrostatic level designed by the utility model is selected possesses：Small volume,
Precision is high, and cost is low, easily realizes minute-pressure, long-time stability are good, the features such as not being affected by temperature；Shell upper shed is few, in structure
The volume for reducing hydrostatic level is easily facilitated during design, makes overall structure more compact, it is portable；Set and be provided with upper shell
Transparent form, it is easy to whether there is bubble in the static(al) measuring instrument of observation discovery in time during pouring liquid in measurement, also
Provided with steam vent so that the bubble in sap cavity can be timely and conveniently discharged, and avoid measurement error, measurement accuracy height；Exhaust
Hole is sealed with bulb jackscrew, compared in the prior art with air bleeding valve or encrypt packing flat mouth jackscrew sealing means,
There is no easily worn part, structure is simpler, and stability is more preferable；Sap cavity inwall scribbles antirust oil reservoir, is more conducively vented, and can also improve
The service life of hydrostatic level；There is stair-stepping tapped through hole on lower casing, can both realize shell and lower casing it
Between fastening, while can also more easily realize the fastening between hydrostatic level and measuring point；Advantage is notable, has suitable extensively
The property used.
In description of the present utility model, it is to be understood that term " " center ", " on ", " under ", "left", "right",
" top ", " bottom ", " interior ", " outer ", etc. instruction orientation or position relationship be based on orientation shown in the drawings or position relationship, be only
Described for the ease of description the utility model and simplifying, rather than instruction or imply signified device or element must have it is specific
Orientation, with specific azimuth configuration and operation, therefore it is not intended that to limitation of the present utility model.
In the utility model, unless otherwise clearly defined and limited, term " installation ", " connected ", " connection ", " Gu
It is fixed " etc. term should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or integrally；Can be
Mechanically connect or electrically connect, can also be communication；Can be joined directly together, the indirect phase of intermediary can also be passed through
Even, can be two element internals connection or two elements interaction relationship.For one of ordinary skill in the art
For, concrete meaning of the above-mentioned term in the utility model can be understood as the case may be.
In the utility model, unless otherwise clearly defined and limited, fisrt feature is "above" or "below" second feature
Can be that the first and second features directly contact, or the first and second features pass through intermediary mediate contact.
Above content is to combine specific preferred embodiment further detailed description of the utility model, it is impossible to
Assert that specific implementation of the present utility model is confined to these explanations.For the ordinary skill of the utility model art
For personnel, without departing from the concept of the premise utility, some simple deduction or replace can also be made, should all be regarded
To belong to the scope of protection of the utility model.
Claims (10)
1. a kind of hydrostatic level of based single crystal silicon differential pressure pick-up, including upper shell (1), lower casing (2) and bellows-type list
Crystal silicon differential pressure pick-up (3), the upper shell (1) and lower casing (2) surround the installation of closing after being fixedly connected by stud
Chamber (4)；
The installation cavity (4) is internal by the first lug boss (6) in upper shell (1) internal side wall and the lower casing (2)
The second lug boss (7) in side wall is divided into interconnected right installation cavity (41) and left installation cavity (42), first lug boss
(6) it is oppositely arranged with the second lug boss (7)；
The main body (31) of the bellows-type monocrystalline silicon differential pressure pick-up (3) is fixedly mounted in right installation cavity (41), the bellows
The afterbody (32) of formula monocrystalline silicon differential pressure pick-up (3) is located in the left installation cavity (42), and the bellows-type monocrystalline silicon differential pressure passes
Right installation cavity (41) is separated into independent sap cavity (43) and air cavity (44) mutually by sensor (3), and by the left installation cavity (42)
Mutual disconnected separate chamber is isolated into the right installation cavity (41)；
The sap cavity (43) is located to be located at close to the lower casing (2) one close to upper shell (1) side, the air cavity (44)
Side；
The inlet (11) connected with the sap cavity (43) is offered in the side wall of the upper shell (1), the lower casing (2)
The air inlet (21) connected with the air cavity (44) is offered in side wall.
2. hydrostatic level according to claim 1, it is characterised in that the bellows-type monocrystalline silicon differential pressure pick-up (3)
H end pressures diaphragm (33) fully contacted with the sap cavity (43) for experiencing pressure in sap cavity (43), L end pressure diaphragms
(34) fully contacted with the air cavity (44) for experiencing the pressure in air cavity (44).
3. hydrostatic level according to claim 1 or 2, it is characterised in that be additionally provided with exhaust on the upper shell (1)
Hole (13), the steam vent (13) connects with the sap cavity (43), for discharging the bubble in sap cavity (43).
4. hydrostatic level according to claim 3, it is characterised in that the steam vent (13) is entered with bulb jackscrew (14)
Row sealing.
5. hydrostatic level according to claim 1 or 2, it is characterised in that be additionally provided with form on the upper shell (1)
(15), form (15) place is provided with the transparent lucite (16) with the form (15) form fit.
6. hydrostatic level according to claim 5, it is characterised in that the lucite (16) and the form (15)
Between be provided with the first sealing ring (161), between the H ends of bellows-type monocrystalline silicon differential pressure pick-up (3) and the lucite (16)
Be sequentially provided with the second sealing ring (162) and the apical ring (17) of annular shape, there is on the apical ring (17) through hole, the through hole with it is upper outside
Steam vent (13) on shell (1) is interconnected；
H end of the sap cavity (43) by the bellows-type monocrystalline silicon differential pressure pick-up (3) that mutually compresses successively, the second sealing ring
(162), apical ring (17), lucite (16), the first sealing ring (161), form (15) realize sealing；
The 3rd sealing ring (163) is provided between the L ends of the lower casing (2) and the bellows-type monocrystalline silicon differential pressure pick-up (3),
The air cavity (44) is sensed by the lower casing (2), the 3rd sealing ring (163), bellows-type monocrystalline silicon differential pressure mutually compressed successively
Realize sealing in the L ends of device (3).
7. hydrostatic level according to claim 1, it is characterised in that four Angle Positions on the inside of the upper shell (1)
It is equipped with a tapped blind hole (18)；
Four Angle Positions of the lower casing (2) are respectively provided with a stair-stepping tapped through hole (24), the tapped through hole (24)
Inside diameter is smaller and consistent with the tapped blind hole (18) diameter, for installing fixed bolt, the upper shell (1) of connection fastening and
Lower casing (2)；
Aperture is larger on the outside of the tapped through hole (24), for hydrostatic level to be fixed on into measurement point.
8. hydrostatic level according to claim 1, it is characterised in that the air inlet (21) of the lower casing (2) is relative
Wire hole (23) is offered in side wall, the wire hole (23) is stainless steel waterproof cable-through hole, for link information collecting device
Cable.
9. hydrostatic level according to claim 1, it is characterised in that scribble antirust oil on the inwall of the sap cavity (43)
Layer.
A kind of 10. Hydrostatic leveling system of the hydrostatic level including described in claim any one of 1-9.
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| Application Number | Priority Date | Filing Date | Title |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106969746A (en) * | 2017-03-20 | 2017-07-21 | 西安星展测控科技股份有限公司 | The hydrostatic level of based single crystal silicon differential pressure pick-up |
| CN109025971A (en) * | 2018-04-28 | 2018-12-18 | 中国石油天然气股份有限公司 | Drilling pressure detection device and its diaphragm applied force mechanism |
| CN113466082A (en) * | 2021-06-29 | 2021-10-01 | 西安西电变压器有限责任公司 | High-vacuum intelligent micro-water measuring device and method |
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2017
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106969746A (en) * | 2017-03-20 | 2017-07-21 | 西安星展测控科技股份有限公司 | The hydrostatic level of based single crystal silicon differential pressure pick-up |
| CN106969746B (en) * | 2017-03-20 | 2023-04-07 | 星展测控科技股份有限公司 | Static level gauge based on monocrystalline silicon differential pressure sensor |
| CN109025971A (en) * | 2018-04-28 | 2018-12-18 | 中国石油天然气股份有限公司 | Drilling pressure detection device and its diaphragm applied force mechanism |
| CN109025971B (en) * | 2018-04-28 | 2022-02-01 | 中国石油天然气股份有限公司 | Drilling pressure detection device and diaphragm stress mechanism thereof |
| CN113466082A (en) * | 2021-06-29 | 2021-10-01 | 西安西电变压器有限责任公司 | High-vacuum intelligent micro-water measuring device and method |
| CN113466082B (en) * | 2021-06-29 | 2023-10-03 | 西安西电变压器有限责任公司 | High-vacuum intelligent micro-water measuring device and method |
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