CN110118590A - Liquid level sensor detection device - Google Patents
Liquid level sensor detection device Download PDFInfo
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- CN110118590A CN110118590A CN201910552952.7A CN201910552952A CN110118590A CN 110118590 A CN110118590 A CN 110118590A CN 201910552952 A CN201910552952 A CN 201910552952A CN 110118590 A CN110118590 A CN 110118590A
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- 239000007788 liquid Substances 0.000 title claims abstract description 119
- 238000001514 detection method Methods 0.000 title claims abstract description 54
- 230000007246 mechanism Effects 0.000 claims abstract description 52
- 238000007789 sealing Methods 0.000 claims abstract description 27
- 238000012806 monitoring device Methods 0.000 claims abstract description 22
- 238000003825 pressing Methods 0.000 claims description 34
- 210000004907 gland Anatomy 0.000 claims description 19
- 238000003780 insertion Methods 0.000 claims description 14
- 230000037431 insertion Effects 0.000 claims description 14
- 230000006837 decompression Effects 0.000 claims description 5
- 238000012544 monitoring process Methods 0.000 claims 1
- 238000000034 method Methods 0.000 description 12
- 238000010586 diagram Methods 0.000 description 9
- 230000008569 process Effects 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- 238000007689 inspection Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
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- 230000008901 benefit Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000011017 operating method Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 229920002449 FKM Polymers 0.000 description 1
- 230000009471 action Effects 0.000 description 1
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- 230000008676 import Effects 0.000 description 1
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- 238000004519 manufacturing process Methods 0.000 description 1
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Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
- G01F23/14—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measurement of pressure
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F25/00—Testing or calibration of apparatus for measuring volume, volume flow or liquid level or for metering by volume
- G01F25/20—Testing or calibration of apparatus for measuring volume, volume flow or liquid level or for metering by volume of apparatus for measuring liquid level
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- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
- Measuring Fluid Pressure (AREA)
Abstract
The application provides a kind of liquid level sensor detection device, is related to field of industry detection.The liquid level sensor detection device includes admission gear and retaining mechanism；Admission gear includes intake valve, pressure reducing valve, pressure monitoring device and air inlet, and the output end of intake valve is connect with retaining mechanism, pressure reducing valve respectively, and the output end of pressure reducing valve is connect with air inlet；Retaining mechanism includes seal tube and locking assembly, seal tube surrounds the air inlet setting, retaining mechanism is locked the liquid level sensor to be detected in seal tube by locking assembly under air pressure driving, sealing space is formed in seal tube, pressure reducing valve is to apply air pressure in sealing space by air inlet, pressure monitoring device is connected to pressure reducing valve, for detecting the air pressure in sealing space.It carries out locking and closed to liquid level sensor to be detected by retaining mechanism and detects, improve detection efficiency.
Description
Technical field
This application involves industrial detection technical fields, in particular to a kind of liquid level sensor detection device.
Background technique
Liquid level sensor be to the instrument for indicating and controlling liquid level in technical process measurement and control system, at present for
The calibration of liquid level sensor, ununified calibration.Since liquid level sensor is to detect liquid level by detection pressure in fact
Sensor, therefore calibration is exactly the pressure data calibrated in fact, then a pressure source will be needed, therefore current liquid
Level sensor method is usually to export the normal pressure that pressure source exports to sensor.In the prior art, the pressure source of use
Be mostly mechanical type pressing forcer, each time detection require it is one-to-one manually be attached and pressure output operation, inspection
Survey low efficiency.Also, it since liquid level sensor generallys use the working method of throw-in type, is usually not used to connect on probe
The separate interface of pressure source, therefore now more common calibration method needs the sump of a real depth, then sensor is visited
Head throws certain depth in water, then the depth put by tape measure into, by measured value come calibration sensor values.But make
Middle sump examines the height of liquid level to adjust completely by hand in this way, and detection efficiency is low, time-consuming and laborious.
Summary of the invention
In view of this, the embodiment of the present application is designed to provide a kind of liquid level sensor detection device, it is existing to improve
The low problem of liquid level sensor detection efficiency present in technology.
The embodiment of the present application provides a kind of liquid level sensor detection device, the liquid level sensor detection device include into
Mechanism of qi structure and retaining mechanism；The admission gear includes intake valve, pressure reducing valve, pressure monitoring device and air inlet, the air inlet
The input terminal of valve is connect with external admission line, and the first output end of the intake valve is connect with the retaining mechanism, it is described into
The second output terminal of air valve is connect with the input terminal of the pressure reducing valve, and the output end of the pressure reducing valve is connect with the air inlet,
The pressure monitoring device is connected to the pressure reducing valve；The retaining mechanism includes seal tube and locking assembly, the sealing
Hose surrounds the air inlet setting, and after gas enters the pressure reducing valve by the intake valve, first output end is defeated
Air pressure out drives the retaining mechanism to pass the liquid level to be detected being placed in the seal tube by the locking assembly
Sensor is locked in the seal tube, makes to form sealing space in the seal tube, the pressure reducing valve by it is described into
Port is to apply air pressure in the sealing space, and the pressure monitoring device is connected to the pressure reducing valve, to pass through pressure monitoring
Device detects the air pressure in the sealing space.
During above-mentioned realization, is cooperated by admission gear and retaining mechanism, treated using gas-powered retaining mechanism
The liquid level sensor of detection is locked, is sealed, and applies air pressure to the liquid level sensor, to realize the inspection of liquid level sensor
Survey, do not need to put into liquid level sensor in sump, do not need to carry out manually at each test yet one-to-one connection and
Pressure output operation, simplifies operating procedure, improves the detection efficiency of liquid level sensor.
Optionally, described device further includes rack, and the retaining mechanism further includes locking power source, pressing plate, the locking
Component includes locking gland, locking head；The pressing plate is set in the rack, and the pressing plate where plane with it is described to be checked
The direction of insertion for surveying liquid level sensor forms the angle of predetermined angle, and the pressing plate includes passing for being inserted into the liquid level to be detected
At least one first through hole of sensor；The locking gland is arranged around the inner wall of the first through hole, the locking gland court
First terrace is provided on the outer wall of the pressing plate, the First terrace is supported with the pressing plate, the locking gland
It is bonded towards the inner wall of the seal tube with the locking head；The locking head is arranged around the outer wall of the seal tube,
The outer wall of the locking head towards the locking gland is gradually increased along the direction of insertion thickness, the locking power source and institute
The connection of the first output end is stated, for applying direction work identical with the direction of insertion to the pressing plate under the influence of air pressure
Firmly.
During above-mentioned realization, drives pressing plate to support the First terrace of locking gland by locking power source, lock pressure
Lid pressing locking head, locking head surround the outer wall of gluing, sealing hose, so that seal tube is closely pasted with liquid level sensor to be measured
Conjunction forms sealing space, ensure that the airtightness of sealing space, does not need the dropping apparatus for manually carrying out liquid level sensor, thus
Improve detection efficiency and accuracy rate.
Optionally, the retaining mechanism further includes fixed plate, and the fixed plate is provided with for being inserted into the liquid to be detected
At least one second through-hole of level sensor, at least one described second through-hole is corresponding at least one described first through hole position,
The locking head is provided with second step face, the second step face and the fixation in the contact position with second through-hole
Plate supports.
During above-mentioned realization, locking head is supported by second step face with fixed plate, avoids retaining mechanism in liquid level
Due to air pressure slide downward when sensor is locked, to avoid the leakproofness of sealing space caused by the loosening of retaining mechanism
It reduces, improves Detection accuracy.
Optionally, the locking power source is cylinder.
During above-mentioned realization, using cylinder as locking power source, the structure with pneumatic structure is simple, it is light,
The simple advantage of installation maintenance, while reducing energy cost.
Optionally, the internal diameter of the seal tube is greater than the outer diameter of the liquid level sensor to be detected, and the sealing is soft
The difference of the outer diameter of the internal diameter of pipe and the liquid level sensor to be detected is less than or equal to preset length.
It, can when the outer diameter of liquid level sensor to be detected is slightly smaller than the internal diameter of seal tube during above-mentioned realization
Guarantee that seal tube can closely surround liquid level sensor to be detected completely, to ensure that detection accuracy.
Optionally, the locking assembly and the air inlet are at least two, and the admission gear further includes gas-separating valve, institute
Stating gas-separating valve includes at least two points of gas channels, and the locking assembly, the air inlet are identical with the quantity for dividing gas channel,
Gas channel is each divided to connect respectively with corresponding air inlet.
During above-mentioned realization, locking assembly and air inlet are at least two, are input to gas respectively by gas-separating valve
A air inlet, to drive at least two locking assemblies to carry out the detection detection of at least two liquid level sensors simultaneously, so as to
The batch detection for realizing liquid level sensor, improves detection efficiency.
Optionally, the pressure reducing valve includes one-level pressure relief valve and second level precise pressure-reducing valve, the input of the one-level pressure relief valve
End is connect with first output end, and the input terminal of the output end of the one-level pressure relief valve and the second level precise pressure-reducing valve connects
It connects, the output end of the second level precise pressure-reducing valve is connect with the air inlet.
During above-mentioned realization, by two-stage decompression valve to the gas entered at retaining mechanism and liquid level sensor to be detected
Pressure is limited, and the safety of liquid level sensor detection device is improved.
Optionally, the monitoring device includes pressure gauge, the output end of the pressure gauge and the second level precise pressure-reducing valve
Connection.
Optionally, the admission gear includes hand-operated direction valve.
During above-mentioned realization, gas is controlled by hand-operated direction valve and flows into locking power source or pressure reducing valve, to mention
The high ease-to-operate of pressure control.
Detailed description of the invention
Technical solution in ord to more clearly illustrate embodiments of the present application will make below to required in the embodiment of the present application
Attached drawing is briefly described, it should be understood that the following drawings illustrates only some embodiments of the application, therefore should not be seen
Work is the restriction to range, for those of ordinary skill in the art, without creative efforts, can be with
Other relevant attached drawings are obtained according to these attached drawings.
Fig. 1 is a kind of structural block diagram of admission gear provided by the embodiments of the present application；
Fig. 2 is the structural schematic diagram of a kind of retaining mechanism provided by the embodiments of the present application and partial-air admission mechanism；
Fig. 3 is the structural representation of the other direction of a kind of retaining mechanism provided by the embodiments of the present application and partial-air admission mechanism
Figure；
Fig. 4 is a kind of partial structure diagram of retaining mechanism provided by the embodiments of the present application.
Icon: 10- liquid level sensor detection device；12- admission gear；121- intake valve；122- pressure reducing valve；1221- mono-
Grade pressure reducing valve；1222- second level precise pressure-reducing valve；123- pressure monitoring device；124- air inlet；125- gas-separating valve；14- locks machine
Structure；141- seal tube；142- locking power source；143- pressing plate；144- locks gland；1441- First terrace；1442-
Two step surfaces；145- locking head；146- fixed plate；16- rack.
Specific embodiment
Below in conjunction with attached drawing in the embodiment of the present application, technical solutions in the embodiments of the present application is described.
It should also be noted that similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined in a attached drawing, does not then need that it is further defined and explained in subsequent attached drawing.Meanwhile the application's
In description, term " first ", " second " etc. are only used for distinguishing description, are not understood to indicate or imply relative importance.
For the manufacturing process of liquid level sensor, need to set a calibration when calibrating liquid level sensor
Source, since liquid level sensor is exactly pressure sensor in fact, calibration is exactly the pressure data calibrated in fact, and the calibration source is logical
It is often pressure source.But through the applicant the study found that current pressure source it is commonly used be mechanical type pressing forcer,
Mechanical type pressing forcer and liquid level sensor will be attached manually when being calibrated each time, and operate mechanical type pressing
For forcer output pressure to liquid level sensor, calibration steps is complicated, reduces calibration efficiency；Existing liquid level sensor simultaneously
It is commonly the working method of throw-in type, liquid level sensor is usually put into the container of the known depth of water, is come with practical bathymetric data
Liquid level sensor is measured, further reduced the detection efficiency of liquid level sensor.
To solve the above-mentioned problems, the embodiment of the present application provides a kind of liquid level sensor detection device 10.
Liquid level sensor detection device 10 include admission gear 12 and retaining mechanism 14, one end of admission gear 12 with it is external
Admission line connection, the other end of admission gear 12 are connect with retaining mechanism 14, and retaining mechanism 14 is for fixing liquid level to be detected
Sensor simultaneously detects it.
Referring to FIG. 1, Fig. 1 is a kind of structural block diagram of admission gear provided by the embodiments of the present application.
Admission gear 12 includes intake valve 121, pressure reducing valve 122, pressure monitoring device 123 and air inlet 124.Intake valve
121 input terminal is connect with external admission line, and the first output end of intake valve 121 is connect with retaining mechanism 14, intake valve 121
Second output terminal connect with the input terminal of pressure reducing valve 122, the output end of pressure reducing valve 122 is connect with air inlet 124, to pass through
Gas is inputted retaining mechanism 14 by air inlet 124.
By the structure of above-mentioned admission gear 12, the gas of different pressure inputted at liquid level sensor to be detected respectively and
Retaining mechanism 14 can carry out pressure suffered by liquid level sensor to be detected individually, subtly to adjust, to improve to be detected
The safety and detection accuracy of liquid level sensor.
In the present embodiment, intake valve 121 can be is made of valve body, rotary check-valves, butterfly valve and control cylinder.It returns
The included counterweight of rotatable check-valves and viton seal ring, compressor host air-breathing when the compressor of external admission line is switched on, by
In the reason of the pressure difference, rotary check-valves is opened rapidly, after compressor shutdown loses pressure difference, is controlled by counterweight, it is rotary only
Returning valve can be timely, promptly tight shut-off, avoids the occurrence of the phenomenon shut down and spit oil.The opening and closing of butterfly valve are by control cylinder control
System stretches out length according to the piston of control cylinder, and control butterfly valve turns on or off, to adjust compressor air inflow.
Optionally, the first output end of above-mentioned intake valve 121 and second output terminal divide the gas can be by hand-operated direction valve reality
Existing, then intake valve 121 can also include the hand-operated direction valve being arranged between valve body and pressure reducing valve 122, and the hand-operated direction valve is again
Claim Chris's valve, one kind of valve has multidirectional adjustable channel, can change fluid flow direction in due course.
It should be understood that the present embodiment can also realize gas distribution using solenoid directional control valve in addition to hand-operated direction valve.
Different solenoid directional control valves plays a role in the different location of control system, and the most commonly used is check valve, safety valve, direction controllings
Valve, speed-regulating valve etc..Therefore, solenoid directional control valve can cooperate different circuits to realize expected control, and the essence controlled
Degree and flexibility can access better guarantee.
Pressure reducing valve 122 is the outlet pressure by the way that inlet pressure to be reduced to a certain needs after adjusting, and relies on medium itself
Energy, so that outlet pressure is automatically kept stable valve, in the present embodiment the import (input terminal) of pressure reducing valve 122 be intake valve
121 second output terminal, outlet (output end) are connect with air inlet 124.
Optionally, the pressure reducing valve 122 in the present embodiment can be selected using Combined pressure reducing valve, action type pressure reducing valve, work
Plug pressure reducing valve, Diaphragm reducing valve, direct acting pressure or other types.
Liquid level sensor to be detected is more sensitive to air pressure, may be damaged when air pressure is excessive.Therefore, as one kind
Optional embodiment, the pressure reducing valve 122 in the admission gear 12 may include one-level pressure relief valve 1221 and the decompression of second level precision
Valve 1222.
It is exported from intake valve 121, is the first default pressure, level-one decompression into the compressed gas before one-level pressure relief valve 1221
Valve 1221 is by compressed gas pressure limiting to the second default pressure, which is entering second level precise pressure-reducing valve 1222, by second level
Precise pressure-reducing valve 1222, which fine-tunes compressed gas to third, presets pressure.Wherein, the first default pressure can be a pressure
Strong range, the pressure range can be 0.4-0.8MPa, and the second default pressure can be 0.4MPa, and third presets pressure can root
It is specifically adjusted according to the detection range of liquid level sensor to be detected.
The present embodiment is by setting second level precise pressure-reducing valve 1222, based on two-stage decompression valve to entrance retaining mechanism 14 and liquid
The air pressure in space is limited where level sensor, improves the safety of detection.
Since second level precise pressure-reducing valve 1222 is used to pass through locating for air inlet 124 output gas to liquid level sensor to be detected
Sealing space, and then the air pressure of 1222 output end of second level precise pressure-reducing valve is identical as pressure suffered by liquid level sensor to be detected.Then
As an alternative embodiment, pressure monitoring device 123 is connected to a branch of second level precise pressure-reducing valve 1222, pass through pressure
Power monitoring device 123 detects pressure suffered by liquid level sensor to be detected, and the liquid to be detected that pressure monitoring device 123 is detected
Pressure suffered by level sensor, the pressure oneself detected with liquid level sensor to be detected are compared, be can be realized to be detected
The detection of liquid level sensor illustrates that liquid level sensor to be detected is normal, otherwise needs to this if error is less than error threshold
Liquid level sensor is calibrated.
Above-mentioned second level precise pressure-reducing valve 1222 is the flow that medium is adjusted using the aperture of the intracorporal opening and closing element of control valve,
By the pressure reduction of medium, while the aperture of the effect adjusting opening and closing element by downstream pressure, so that downstream pressure is maintained at certain
In range, in the continually changing situation of inlet pressure, keeps outlet pressure in the range of setting, protect valve device thereafter
Tool.Optionally, the second level precise pressure-reducing valve 1222 in the present embodiment can use proportion type reducing valve, Self-operated pressure reducing valve, back
Press the types such as regulating valve.
Optionally, pressure monitoring device 123 can be pressure gauge, and being also possible to pressure sensor etc., other are able to detect gas
The element of body pressure.
Fig. 2, Fig. 3 and Fig. 4 are please referred to, Fig. 2 is a kind of retaining mechanism provided by the embodiments of the present application and partial-air admission mechanism
Structural schematic diagram, Fig. 3 is the knot of the other direction of a kind of retaining mechanism provided by the embodiments of the present application and partial-air admission mechanism
Structure schematic diagram, Fig. 4 are a kind of partial structure diagram of retaining mechanism provided by the embodiments of the present application.
Retaining mechanism 14 includes seal tube 141 and locking assembly, and seal tube 141 is arranged around air inlet 124, and close
Upper end of the hose 141 far from air inlet 124 is sealed there are the aperture for liquid level sensor to be detected insertion, is put in liquid level sensor
Locking assembly passes liquid level under the air pressure driving that the first output end transmission of intake valve 121 comes when setting in seal tube 141
Sensor locking, makes seal tube 141 and liquid level sensor form sealing space, and pressure reducing valve 122 passes through air inlet 124 to the sealing
Apply air pressure in space, then can detect pressure suffered by the liquid level sensor in sealing space by pressure monitoring device 123.
Wherein, in order to make liquid level sensor to be detected be easily inserted seal tube 141 and enough fit closely, seal tube
141 internal diameter is greater than the outer diameter of liquid level sensor to be detected, and the outer diameter of the internal diameter of seal tube and liquid level sensor to be detected
Difference be less than or equal to preset length.Optionally, which can be 1 millimeter, be also possible to according to seal tube 141
Other selected appropriate lengths of material property.
Optionally, liquid level sensor detection device 10 can also include rack 16, and admission gear 12 and retaining mechanism 14 are equal
It is arranged in rack 16.It should be understood that the material of rack 16 can be metal, alloy, plastics, composite material etc..
Retaining mechanism 14 can also include locking power source 142 and pressing plate 143, and locking assembly includes locking gland 144, lock
Tight head 145.
Locking power source 142 can be pneumatic source, be also possible to electronic source or other driving sources, in the present embodiment due to
Liquid level sensor to be detected carries out pressurization detection by gas, and in order to reduce equipment cost, locking power source 142 can use gas
Cylinder, cylinder are the cylindrical metal parts for guiding piston to carry out straight reciprocating motion in cylinder.
Select cylinder as locking power source 142, the structure with pneumatic structure is simple, light, installation maintenance is simple
Advantage, while reducing equipment cost and energy cost.
Pressing plate 143 is set in rack 16, and the direction of insertion shape of pressing plate 143 place plane and liquid level sensor to be detected
At the angle of predetermined angle, pressing plate 143 includes at least one first through hole, and first through hole is for being inserted into level sensing to be detected
Device, therefore the shape of first through hole is similar with the cross-sectional shape of liquid level sensor to be detected.Wherein, pressing plate in the present embodiment
143 and the predetermined angle of angle of direction of insertion of liquid level sensor to be detected can be with substantially 90 °.Optionally, pressing plate 143 with
The material of rack 16 can be identical.
The inner wall that gland 144 is locked around first through hole is arranged, and the outer wall setting of its inner wall fitting locking head 145.Lock
Gland 144 is provided with First terrace 1441, pressing plate towards 143 direction of pressing plate (direction of insertion of liquid level sensor to be detected)
143 drivings of power source 142 that are locked support when being downwardly applied to pressure to apply locking gland 144 with First terrace 1441
Downward pressure.
The outer outer wall around seal tube 141 of locking head 145 is arranged, and the outer wall of locking head 145 is along the pushing direction of pressing plate 143
Thickness is gradually increased, the tilt angle of the outer wall of the locking head 145 downward pressure being subject to can be resolved into horizontal direction and
Active force vertically downward.It drives locking gland 144 to move down when pressing plate 143 pushes, locks inner wall and the locking of gland 144
First 145 outer wall is gradually bonded, and due to the outer wall of locking head 145, locking head 145 is by effect in horizontal direction and vertically downward
Power makes seal tube 141 generate deformation to form the active force inwardly squeezed to seal tube 141, to will be sealed soft
The liquid level sensor to be detected locking that pipe 141 surrounds, forms sealing space wherein.
The tilt angle of the outer wall of above-mentioned locking head 145 can lock demand according to liquid level sensor to be detected and carry out specifically
Adjustment.
Optionally, the direction of insertion in order to avoid locking head 145 along liquid level sensor to be detected is slided, and sealing space is closed
Property reduce, to cause the problem of testing result inaccuracy, retaining mechanism 14 can also be set including fixed plate 146, fixed plate 146
It is placed in rack 16, and 146 place plane of fixed plate and the direction of insertion of liquid level sensor to be detected form the folder of predetermined angle
Angle, 143 place of predetermined angle and pressing plate between the 146 place plane of fixed plate and the direction of insertion of liquid level sensor to be detected
Predetermined angle between plane and the direction of insertion of liquid level sensor to be detected is roughly the same.
At least one second through-hole is provided in fixed plate 146, the position of the second through-hole and the position of first through hole are opposite
It answers, for being inserted into liquid level sensor to be detected.
Locking head 145 is that the position of the second through-hole contact is provided with second step face 1442, the second step face 1442
It offsets when by down force with fixed plate 146, to avoid locking head 145 from continuing slide downward, to improve
The stability of retaining mechanism 14, ensure that detection accuracy.
Liquid level when carrying out the detection of liquid level sensor, in order to further increase detection efficiency, in the embodiment of the present application
Sensor detecting device 10 can also simultaneously detect multiple liquid level sensors to be detected, then liquid level sensor detection device
10 include at least two locking assemblies and air inlet 124, while admission gear 12 further includes gas-separating valve 125.
Gas-separating valve 125 includes at least two points of gas channels, each divides the input terminal in gas channel defeated with pressure reducing valve 122 respectively
Outlet connection each divides the output end in gas channel to connect respectively with corresponding air inlet 124, at this time locking assembly, air inlet 124
It is identical with the quantity in gas channel is divided.
When above-mentioned liquid level sensor detection device 10 is detected, first by least two liquid level sensors to be detected point
It is not inserted into corresponding seal tube 141, each liquid level sensor to be detected forms sealing space with corresponding seal tube 141,
It opens compressor and compressed gas is inputted the lock in pressure reducing valve 122 and retaining mechanism 14 by intake valve 121, intake valve 121 respectively
In tight power source 142, locking power source 142 drives 143 pairs of locking glands 144 of pressing plate to apply active force, locks gland 144 at this
Seal tube 141 is squeezed under active force makes it generate deformation, so that tight liquid level sensor to be detected makes the sealing space
It is not in communication with the outside, then passing through pressure reducing valve 122 for the air pressure adjustment in sealing space is preset value, then according to pressure monitoring device
123 reading should be identical as preset value, and the detected value of the reading and liquid level sensor is compared and obtains testing result.
In conclusion the embodiment of the present application provides a kind of liquid level sensor detection device, the liquid level sensor detection
Device includes admission gear and retaining mechanism；The admission gear includes intake valve, pressure reducing valve, pressure monitoring device and air inlet
Mouthful, the input terminal of the intake valve is connect with external admission line, the first output end and the retaining mechanism of the intake valve
Connection, the second output terminal of the intake valve connect with the input terminal of the pressure reducing valve, the output end of the pressure reducing valve with it is described
Air inlet connection, the pressure monitoring device are connected to the pressure reducing valve；The retaining mechanism includes seal tube and locking group
Part, the seal tube surrounds the air inlet setting, after gas enters the pressure reducing valve by the intake valve, described the
One output end output air pressure drive the retaining mechanism by the locking assembly make to be placed in the seal tube to
Detection liquid level sensor is locked in the seal tube, makes to form sealing space, the pressure reducing valve in the seal tube
It is to apply air pressure in the sealing space by the air inlet, the pressure monitoring device is connected to the pressure reducing valve, with logical
Excess pressure monitoring device detects the air pressure in the sealing space.
During above-mentioned realization, is cooperated by admission gear and retaining mechanism, treated using gas-powered retaining mechanism
The liquid level sensor of detection is locked, is sealed, and applies air pressure to the liquid level sensor, to realize the inspection of liquid level sensor
Survey, do not need to put into liquid level sensor in sump, do not need to carry out manually at each test yet one-to-one connection and
Pressure output operation, simplifies operating procedure, improves the detection efficiency of liquid level sensor.
In several embodiments provided herein, it should be understood that disclosed device can also pass through others
Mode is realized.The apparatus embodiments described above are merely exemplary, for example, the flow chart and block diagram in the drawings show
According to the architecture, function and operation in the cards of the device of multiple embodiments of the application, and the pressurization side of pressing plate 143
Formula, the locking mode of locking assembly, locking power source 142 power source presentation mode also may be implemented in other ways.
In this regard, each box in flowchart or block diagram can represent a part of a module.It should also be noted that in some works
For in the implementation of replacement, function marked in the box can also occur in a different order than that indicated in the drawings.Example
Such as, two continuous boxes can actually be basically executed in parallel, they can also be executed in the opposite order sometimes, this according to
Depending on related function.
In addition, each functional module in each embodiment of the application can integrate one independent portion of formation together
Point, it is also possible to modules individualism, an independent part can also be integrated to form with two or more modules.
The above description is only an example of the present application, the protection scope being not intended to limit this application, for ability
For the technical staff in domain, various changes and changes are possible in this application.Within the spirit and principles of this application, made
Any modification, equivalent substitution, improvement and etc. should be included within the scope of protection of this application.It should also be noted that similar label and
Letter indicates similar terms in following attached drawing, therefore, once it is defined in a certain Xiang Yi attached drawing, then in subsequent attached drawing
In do not need that it is further defined and explained.
The above, the only specific embodiment of the application, but the protection scope of the application is not limited thereto, it is any
Those familiar with the art within the technical scope of the present application, can easily think of the change or the replacement, and should all contain
Lid is within the scope of protection of this application.
It should be noted that, in this document, relational terms such as first and second and the like are used merely to a reality
Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation
In any actual relationship or order or sequence.Moreover, the terms "include", "comprise" or its any other variant are intended to
Non-exclusive inclusion, so that the process, method, article or equipment including a series of elements is not only wanted including those
Element, but also including other elements that are not explicitly listed, or further include for this process, method, article or equipment
Intrinsic element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that
There is also other identical elements in process, method, article or equipment including the element.
Claims (9)
1. a kind of liquid level sensor detection device, which is characterized in that described device includes admission gear and retaining mechanism；
The admission gear includes intake valve, pressure reducing valve, pressure monitoring device and air inlet, the input terminal of the intake valve and outer
Feed channel connection is tapped into, the first output end of the intake valve is connect with the retaining mechanism, the second output of the intake valve
End is connect with the input terminal of the pressure reducing valve, and the output end of the pressure reducing valve is connect with the air inlet, the pressure monitoring dress
It sets and is connected to the pressure reducing valve；
The retaining mechanism includes seal tube and locking assembly, and the seal tube surrounds the air inlet setting, in gas
After entering the pressure reducing valve by the intake valve, the air pressure of the first output end output drives the retaining mechanism to pass through institute
Stating locking assembly is locked in the liquid level sensor to be detected being placed in the seal tube in the seal tube, makes institute
It states and forms sealing space in seal tube, the pressure reducing valve is to apply air pressure in the sealing space by the air inlet, with
The air pressure in the sealing space is detected by pressure monitoring device.
2. liquid level sensor detection device according to claim 1, which is characterized in that described device further includes rack, institute
Stating retaining mechanism further includes locking power source, pressing plate, and the locking assembly includes locking gland, locking head；
The pressing plate is set in the rack, and the insertion side of plane and the liquid level sensor to be detected where the pressing plate
To the angle for forming predetermined angle, the pressing plate include for be inserted into the liquid level sensor to be detected at least one is first logical
Hole；
The locking gland is arranged around the inner wall of the first through hole, and the locking gland is towards setting on the outer wall of the pressing plate
It is equipped with First terrace, the First terrace is supported with the pressing plate, and the locking gland is towards in the seal tube
Wall is bonded with the locking head；
The locking head is arranged around the outer wall of the seal tube, and the locking head is towards the outer wall for locking gland along institute
It states direction of insertion thickness to be gradually increased, the locking power source is connect with first output end, under the influence of air pressure
Apply direction active force identical with the direction of insertion to the pressing plate.
3. liquid level sensor detection device according to claim 2, which is characterized in that the retaining mechanism further includes fixing
Plate, the fixed plate are provided with for being inserted at least one second through-hole of the liquid level sensor to be detected, it is described at least one
Second through-hole is corresponding at least one described first through hole position, and the locking head is set in the contact position with second through-hole
It is equipped with second step face, the second step face is supported with the fixed plate.
4. liquid level sensor detection device according to claim 2 or 3, which is characterized in that the locking power source is gas
Cylinder.
5. liquid level sensor detection device according to claim 2, which is characterized in that the internal diameter of the seal tube is greater than
The outer diameter of the liquid level sensor to be detected, and the outer diameter of the internal diameter of the seal tube and the liquid level sensor to be detected it
Difference is less than or equal to preset length.
6. liquid level sensor detection device according to claim 2, which is characterized in that the locking assembly and the air inlet
Mouth is at least two, and the admission gear further includes gas-separating valve, and the gas-separating valve includes at least two points of gas channels, the locking
Component, the air inlet are identical with the quantity for dividing gas channel, and gas channel is each divided to connect respectively with corresponding air inlet.
7. liquid level sensor detection device according to claim 1, which is characterized in that the pressure reducing valve includes level-one decompression
Valve and second level precise pressure-reducing valve, the input terminal of the one-level pressure relief valve are connect with first output end, the one-level pressure relief valve
Output end connect with the input terminal of the second level precise pressure-reducing valve, the output end of the second level precise pressure-reducing valve and the air inlet
Mouth connection.
8. liquid level sensor detection device according to claim 7, which is characterized in that the monitoring device includes pressure
Table, the pressure gauge are connected to the output end of the second level precise pressure-reducing valve.
9. liquid level sensor detection device according to claim 2, which is characterized in that the admission gear includes changing manually
To valve.
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| CN201910552952.7A CN110118590B (en) | 2019-06-24 | 2019-06-24 | Liquid level sensor detection device |
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| CN201910552952.7A CN110118590B (en) | 2019-06-24 | 2019-06-24 | Liquid level sensor detection device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111693200A (en) * | 2020-06-22 | 2020-09-22 | 南通科达建材股份有限公司 | Assembly type building connection structure locking force monitoring device |
| CN113375755A (en) * | 2021-08-12 | 2021-09-10 | 深之蓝(天津)水下智能科技有限公司 | Depth detector of underwater equipment and underwater equipment |
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| Publication number | Publication date |
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| CN110118590B (en) | 2024-04-09 |
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