CN208887736U - Oil level gauge for transformer and oil level measuring device - Google Patents
Oil level gauge for transformer and oil level measuring device Download PDFInfo
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- CN208887736U CN208887736U CN201821484146.8U CN201821484146U CN208887736U CN 208887736 U CN208887736 U CN 208887736U CN 201821484146 U CN201821484146 U CN 201821484146U CN 208887736 U CN208887736 U CN 208887736U
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Abstract
The utility model provides a kind of oil level gauge for transformer and oil level measuring device, is related to the technical field of transformer oil level measurement, including telescopic rod main body, fuel outlet valve connecting tube, measurement hose and hose folding and unfolding component；It is connect by fuel outlet valve connecting tube with measurement hose, transformer oil enters in measurement hose by fuel outlet valve connecting tube；Drive measurement hose mobile the support of measurement hose and hose folding and unfolding component by telescopic rod main body, the vertical height of changeable measurement hose measures the measurement range of hose, the unadjustable technical problem of transformer oil level measuring arrangement range is alleviated, the range for realizing transformer oil level measuring arrangement can flexible modulation and whole portable technical effect.
Description
Technical field
The utility model relates to the technical fields of transformer oil level measurement, more particularly, to a kind of oil level gauge for transformer and oil
Level measuring arrangement.
Background technique
Insulation, heat dissipation and arc extinguishing medium of the transformer oil as transformer, the moderate of transformer oil mass is transformer safety
The guarantee of operation；Transformer itself is also configured with oil level indicating gage, but transformer itself oil level indicator in outdoor due to frequent weathering
It is blocked with spot and causes transformer itself oil level indicator failure or pointer position unintelligible, influence staff to transformer oil level
Judgement.
Existing technology is with a PVC flexible rubber hose, and one end is connected to the taking on oil valve of transformer bottom, and other end connects
It connects on insulating bar or link rod, is supported PVC flexible rubber hose vertically by insulating bar, by observing PVC flexible rubber hose
Interior level height judges the practical level height in transformer.
But judge that the device of transformer oil level is unable to satisfy not using PVC flexible rubber hose and insulating bar occasional combination
Same specification transformer corresponds to the needs of different PVC flexible glue length of tube, not Portable belt.
Utility model content
The purpose of this utility model is to provide a kind of oil level gauge for transformer and oil level measuring devices, to alleviate transformer
The unadjustable technical problem of the range of oil level measuring device.
In order to solve the above technical problems, technical solution provided by the utility model is:
Oil level gauge for transformer provided by the utility model, including telescopic rod main body, fuel outlet valve connecting tube, measurement hose and soft
Pipe folding and unfolding component；One end of fuel outlet valve connecting tube is connect with measurement hose, and the other end and the transformer of fuel outlet valve connecting tube are drained the oil
Valve connection, so that transformer oil is entered in measurement hose by fuel outlet valve connecting tube, measurement hose is for measuring transformer oil
Liquid level；Measurement hose is set around on hose folding and unfolding component far from one end of fuel outlet valve connecting tube, and hose folding and unfolding component is used
In driving measurement hose mobile, to change the measurable range of measurement hose, one end of flexible pipe extending hose folding and unfolding component is measured
It is connect with telescopic rod main body far from one end of hose folding and unfolding component, telescopic rod main body is used to support measurement hose.
Further, telescopic rod main body includes first sleeve, the second casing and third casing；
Second casing is set in first sleeve, and the second casing is connect with first sleeve, and the second casing can be relative to first
The length direction of casing is flexible；
Third casing is set in the second casing, and third casing and the second casing connection, third casing can be relative to second
The length direction of casing is flexible；
Measurement hose is connect with third casing far from one end of hose folding and unfolding component；
Hose folding and unfolding component is connect with first sleeve.
Further, hose folding and unfolding component includes idler wheel and shake handle；
Shake handle is connect with first sleeve, and idler wheel is set in shake handle, and idler wheel and shake handle are sequentially connected, and is shaken
Dynamic handle drives idler wheel rotation, so that idler wheel drives measurement hose mobile.
Further, transverse connecting rod is provided on third casing, transverse connecting rod and third casing are far from hose folding and unfolding
One end of component connects, and measurement hose passes through transverse connecting rod and third casing connection.
Further, oil level gauge for transformer further includes thermometer；
Thermometer is set in fuel outlet valve connecting tube, and thermometer is used for the temperature of measuring transformer oil.
Further, oil level gauge for transformer further includes pressure gauge；
Pressure gauge is set in fuel outlet valve connecting tube, and pressure gauge is used for the pressure of measuring transformer oil.
Further, oil level gauge for transformer further includes valve；
Valve is set in fuel outlet valve connecting tube, and valve is used to control the on-off of fuel outlet valve connecting tube.
Further, first sleeve, the second casing and third casing are disposed as epoxide resin material.
Further, measurement hose is set as soft parent material.
Oil level measuring device provided by the utility model, including oil level gauge for transformer.
In conjunction with above technical scheme, the beneficial effect that the utility model reaches is:
Oil level gauge for transformer provided by the utility model, including telescopic rod main body, fuel outlet valve connecting tube, measurement hose and soft
Pipe folding and unfolding component；One end of fuel outlet valve connecting tube is connect with measurement hose, and the other end and the transformer of fuel outlet valve connecting tube are drained the oil
Valve connection, so that transformer oil is entered in measurement hose by fuel outlet valve connecting tube, measurement hose is for measuring transformer oil
Liquid level；Measurement hose is set around on hose folding and unfolding component far from one end of fuel outlet valve connecting tube, and hose folding and unfolding component is used
In driving measurement hose mobile, to change the measurable range of measurement hose, one end of flexible pipe extending hose folding and unfolding component is measured
It is connect with telescopic rod main body far from one end of hose folding and unfolding component, telescopic rod main body is used to support measurement hose；Pass through fuel outlet valve
Connecting tube is connect with measurement hose, and transformer oil enters in measurement hose by fuel outlet valve connecting tube；Pass through telescopic rod main body
Drive measurement hose mobile the support of measurement hose and hose folding and unfolding component, changeable measurement hose is highly vertically
The measurement range for measuring hose, alleviates the unadjustable technical problem of transformer oil level measuring arrangement range, realizes transformation
Device oil level measuring device range can flexible modulation and whole portable technical effect.
Detailed description of the invention
It, below will be right in order to illustrate more clearly of specific embodiment of the present invention or technical solution in the prior art
Specific embodiment or attached drawing needed to be used in the description of the prior art are briefly described, it should be apparent that, it is described below
In attached drawing be that some embodiments of the utility model are not paying creativeness for those of ordinary skill in the art
Under the premise of labour, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is the overall structure diagram of oil level gauge for transformer provided by the embodiment of the utility model；
Fig. 2 is the structural schematic diagram of the telescopic rod main body in oil level gauge for transformer provided by the embodiment of the utility model.
Icon: 100- telescopic rod main body；110- first sleeve；The second casing of 120-；130- third casing；210- fuel outlet valve
Connecting tube；220- measures hose；300- hose folding and unfolding component；310- idler wheel；320- shake handle；400- thermometer；500- is horizontal
To connecting tube；600- pressure gauge；700- valve.
Specific embodiment
The technical solution of the utility model is clearly and completely described below in conjunction with attached drawing, it is clear that described
Embodiment is the utility model a part of the embodiment, instead of all the embodiments.Based on the embodiments of the present invention, originally
Field those of ordinary skill every other embodiment obtained without making creative work belongs to practical
Novel protected range.
In the description of the present invention, it should be noted that such as occur term " center ", "upper", "lower", " left side ",
" right side ", "vertical", "horizontal", "inner", "outside" etc., indicated by orientation or positional relationship be orientation based on the figure or
Positional relationship is merely for convenience of describing the present invention and simplifying the description, rather than the device or member of indication or suggestion meaning
Part must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as limiting the present invention.
In addition, such as there is term " first ", " second ", " third " are used for description purposes only, be not understood to indicate or imply opposite
Importance.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, such as there is term
" installation ", " connected ", " connection " shall be understood in a broad sense, for example, it may be fixedly connected, may be a detachable connection or one
Connect to body；It can be mechanical connection, be also possible to be electrically connected；It can be directly connected, it can also be indirect by intermediary
It is connected, can be the connection inside two elements.For the ordinary skill in the art, on being understood with concrete condition
State the concrete meaning of term in the present invention.
Fig. 1 is the overall structure diagram of oil level gauge for transformer provided in this embodiment；Fig. 2 is provided in this embodiment
The structural schematic diagram of telescopic rod main body in oil level gauge for transformer.
Please with reference to Fig. 1 and Fig. 2, oil level gauge for transformer provided in this embodiment, including telescopic rod main body 100, drain the oil
Valve connecting tube 210, measurement hose 220 and hose folding and unfolding component 300；One end of fuel outlet valve connecting tube 210 and measurement hose 220 connect
It connects, the other end of fuel outlet valve connecting tube 210 is connect with transformer fuel outlet valve, so that transformer oil passes through fuel outlet valve connecting tube 210
It enters in measurement hose 220, measurement hose 220 is used for the liquid level of measuring transformer oil；Measurement hose 220 is separate to drain the oil
One end of valve connecting tube 210 is set around on hose folding and unfolding component 300, and hose folding and unfolding component 300 is for driving measurement hose 220
Mobile, to change the measurable range of measurement hose 220, measurement hose 220 stretches out one end of hose folding and unfolding component 300 and stretches
Contracting bar main body 100 is connected far from one end of hose folding and unfolding component 300, and telescopic rod main body is used to support measurement hose 220.
Specifically, fuel outlet valve connecting tube 210 is connect with the outlet of transformer fuel outlet valve, one end and the change of hose 220 are measured
The connection of depressor connecting tube, transformer oil enter in measurement hose 220 by fuel outlet valve connecting tube 210, measure the another of hose 220
One end is connect with telescopic rod main body 100, and the length of telescopic rod main body 100 can change, and telescopic rod main body 100 is measurement hose
220 supports are vertical state, and one section of the centre of measurement hose 220 is set around on hose folding and unfolding component 300, hose folding and unfolding component
300 can enter the maximum height of measurement hose 220 for changing vertical length, that is, transformer oil of measurement hose 220.
Oil level gauge for transformer provided in this embodiment, including telescopic rod main body 100, fuel outlet valve connecting tube 210, measurement hose
220 and hose folding and unfolding component 300；One end of fuel outlet valve connecting tube 210 is connect with measurement hose 220, fuel outlet valve connecting tube 210
The other end is connect with transformer fuel outlet valve, so that transformer oil is entered in measurement hose 220 by fuel outlet valve connecting tube 210,
Measure the liquid level that hose 220 is used for measuring transformer oil；Measure the one end of hose 220 far from fuel outlet valve connecting tube 210 around
On hose folding and unfolding component 300, hose folding and unfolding component 300 is mobile for driving measurement hose 220, to change measurement hose
220 measurable range, measurement hose 220 stretches out one end of hose folding and unfolding component 300 and telescopic rod main body 100 is received far from hose
One end connection of component 300 is put, telescopic rod main body is used to support measurement hose 220；It is soft by fuel outlet valve connecting tube 210 and measurement
Pipe 220 connects, and transformer oil enters in measurement hose 220 by fuel outlet valve connecting tube 210；Pass through telescopic rod main body 100
Support and hose folding and unfolding component 300 to measurement hose 220 drive measurement hose 220 mobile, and measurement hose 220 can be changed
Vertical height measure the measurement range of hose 220, alleviate the uncontrollable technology of transformer oil level measuring arrangement range
Problem, the range for realizing transformer oil level measuring arrangement can flexible modulation and whole portable technical effect.
On the basis of the above embodiments, further, the telescopic rod master in oil level gauge for transformer provided in this embodiment
Body 100 includes first sleeve 110, the second casing 120 and third casing 130；Second casing 120 is set to first sleeve 110
Interior, the second casing 120 is connect with first sleeve 110, and the second casing 120 can be flexible relative to the length direction of first sleeve 110；
Third casing 130 is set in the second casing 120, and third casing 130 is connect with the second casing 120, and third casing 130 can phase
It is flexible for the length direction of the second casing 120；Measure one of hose 220 and third casing 130 far from hose folding and unfolding component 300
End connection；Hose folding and unfolding component 300 is connect with first sleeve 110.
Specifically, in the optinal plan of the present embodiment, more preferential, first sleeve 110, the second casing 120 and
Three casings 130 are disposed as cylindrical tube, and the second casing 120 is arranged in first sleeve 110, and third casing 130 is arranged second
In casing 120；The internal diameter of first sleeve 110 is greater than the outer diameter of the second casing 120, and the internal diameter of the second casing 120 is greater than third set
The outer diameter of pipe 130；One end of hose folding and unfolding component 300 is provided with threaded hole and spiral jackscrew, spiral in first sleeve 110
Jackscrew is abutted by the threaded hole of first sleeve 110 with the second casing 120, and then the second casing 120 can be relative to first sleeve
110 length direction is flexible, while the second casing 120 can be fixed relative to any position of 110 length direction of first sleeve；Together
Deng, one end of hose folding and unfolding component 300 is provided with threaded hole and spiral jackscrew in the second casing 120, spiral jackscrew is logical
The threaded hole for crossing the second casing 120 is abutted with third casing 130, and then third casing 130 can be relative to the second casing 120
Length direction is flexible, while third casing 130 can be fixed relative to any position of 120 length direction of the second casing；It measures soft
Pipe 220 is connect with third set money far from the top of 300 one end of hose folding and unfolding component, same, it can be successively according to use demand
It is provided with Quadruplet pipe and the 5th casing.
Further, hose folding and unfolding component 300 includes idler wheel 310 and shake handle 320；Shake handle 320 and first set
Pipe 110 connects, and idler wheel 310 is set in shake handle 320, and idler wheel 310 and shake handle 320 are sequentially connected, shake handle 320
Idler wheel 310 is driven to rotate, so that idler wheel 310 drives measurement hose 220 mobile.
Specifically, hose folding and unfolding component 300 is connect with first sleeve 110, more preferential, hose folding and unfolding component 300 is set
It is placed in the lower part of fuel outlet valve connecting tube 210；More preferential in the optinal plan of the present embodiment, the outer surface of idler wheel 310 is set
It is equipped with threaded hole, idler wheel 310 is connect by screw with shake handle 320；Shake handle 320 is provided in first sleeve 110
Hold-down support, shake handle 320 is sequentially connected by bearing and hold-down support, and shake handle 320 can pass through bearing and drive rolling
310 rotation of wheel to increase or reduce the number of turns that measurement hose 220 is wound around on idler wheel 310, and then changes measurement hose 220
Vertical length between fuel outlet valve connecting tube 210 and first sleeve 110.
The Telescopic of oil level gauge for transformer provided in this embodiment, 100 different length of telescopic rod main body can meet to survey
The support requirement of 220 different height of hose is measured, the changeable measurement hose 220 of hose folding and unfolding component 300 is located at fuel outlet valve connecting tube
Vertical length between 210 and first sleeve 110 is the useful range for measuring hose 220, meets change provided in this embodiment
The use demand of depressor oil level indicator flexibly changing range.
On the basis of the above embodiments, further, the third casing in oil level gauge for transformer provided in this embodiment
Transverse connecting rod is provided on 130, transverse connecting rod is connect with third casing 130 far from one end of hose folding and unfolding component 300,
Measurement hose 220 is connect by transverse connecting rod with third casing 130.
Specifically, more preferential, transverse connecting pipe 500 is set as cylindrical bar in the optinal plan of the present embodiment,
The top of the one end of one end of cylindrical bar with third casing 130 far from hose folding and unfolding component 300 is connect, and straight where cylindrical bar
Line is vertical with 130 place straight line of third casing；The other end of cylindrical bar is connected with self-locking clip, and measurement hose 220 protrudes into self-locking
In clip and locking is kept, meanwhile, it measures between being maintained between the internal diameter and outer diameter of the junction of hose 220 and self-locking clip
Gap, soft inner air tube is escaped from the above gap when entering hose so as to transformer oil.
Further, oil level gauge for transformer further includes thermometer 400；Thermometer 400 is set to fuel outlet valve connecting tube 210
On, thermometer 400 is used for the temperature of measuring transformer oil.
Specifically, more preferential, thermometer 400 is set as electronic digital display temperature in the optinal plan of the present embodiment
Table；Internal thread hole is provided in fuel outlet valve connecting tube 210, the probe of electronic digital display thermometer protrudes into fuel outlet valve by threaded hole and connects
In adapter tube 210, electronic digital display thermometer is connect by screw thread with fuel outlet valve connecting tube 210；Thermometer 400 is used for measuring transformer
The temperature of oil.
Further, oil level gauge for transformer further includes pressure gauge 600；Pressure gauge 600 is set to fuel outlet valve connecting tube 210
On, pressure gauge 600 is used for the pressure of measuring transformer oil.
Specifically, pressure gauge 600 is connect with fuel outlet valve connecting tube 210, it is provided in fuel outlet valve connecting tube 210 and pressure
The threaded hole that table 600 cooperates, pressure gauge 600 are used for the pressure condition of measuring transformer oil；More preferential, pressure gauge 600 is set
It sets in fuel outlet valve connecting tube 210 and between the valve 700 being located on transformer fuel outlet valve and fuel outlet valve connecting tube 210, works as change
Depressor oil is entered in fuel outlet valve connecting tube 210 by fuel outlet valve, and valve 700 in off position when, pressure gauge 600 can be compared with
For the pressure for accurately measuring transformer oil.
Further, oil level gauge for transformer further includes valve 700；Valve 700 is set in fuel outlet valve connecting tube 210, valve
Door 700 is for controlling the on-off of fuel outlet valve connecting tube 210.
Specifically, valve 700 is set as ball valve, ball valve is used to control the on-off of fuel outlet valve connecting tube 210, when this implementation
Occurring in the oil level gauge for transformer use process that example provides can when range selection is not suitable for or measure the unexpected breakage oil leak of hose 220
Emergency cut-off ball valve.
Oil level gauge for transformer provided in this embodiment facilitates measurement by transverse connecting pipe 500 and its subsidiary clip
The connection of hose 220 and third casing 130；It, can be more accurate by being applied in combination for pressure gauge 600 and thermometer 400
The liquid level for obtaining the transformer oil under the conditions of temperature and pressure of particular transformer oil, so that transformation provided in this embodiment
Device oil level indicator function is more perfect, and use scope is wider；Staff is using transformer oil level timing provided in this embodiment,
Firstly, staff determines the range of measurement hose 220 according to the specification of such transformer, generally to measure hose 220
Range is greater than oil tank of transformer height；Secondly 300 winding of height and hose folding and unfolding component of telescopic rod main body 100 is adjusted
Measure the number of turns of hose 220；Finally, one end and fuel outlet valve connecting tube measurement hose 220 close to hose folding and unfolding component 300
210 one end connections far from transformer fuel outlet valve, and fuel outlet valve connecting tube 210 is connect with transformer fuel outlet valve；It opens and becomes
Depressor fuel outlet valve, transformer oil enter measurement through fuel outlet valve connecting tube 210 by pressure gauge 600, valve 700, thermometer 400
In hose 220, the transformer oil measured in hose 220 is increased to measurement hose 220 far from hose receipts through hose folding and unfolding component 300
One end of component 300 is put, staff can observe the practical level height of transformer oil at this time.
On the basis of the above embodiments, further, the first sleeve in oil level gauge for transformer provided in this embodiment
110, the second casing 120 and third casing 130 are disposed as epoxide resin material.
Specifically, first sleeve 110, the second casing 120 and third casing 130 are disposed as epoxide resin material, epoxy
Resin material intensity height, good insulation preformance, the telescopic rod main body 100 that can meet in oil level gauge for transformer provided in this embodiment are right
In the support demand of measurement hose 220.
Further, measurement hose 220 is set as soft parent material.
Specifically, being set around on hose folding and unfolding component 300 for convenience of measurement hose 220, and transformation in measurement hose 220
The observation of device oil liquid level, measurement hose 220 are set as soft parent material；Meanwhile to avoid entering because of transformer oil
The volume measured in hose 220 is more, causes measurement front and back transformer oil liquid level difference larger, more preferably, measurement
Hose 220 is selected as the lesser tubing of internal diameter.
Oil level gauge for transformer provided in this embodiment, 100 intensity of the telescopic rod main body height of epoxide resin material, insulating properties
Can be excellent, improve the safety in utilization of oil level gauge for transformer provided in this embodiment；Measurement hose 220 is set as soft transparent
Material, convenient for the level height observation of transformer oil in measurement hose 220.
Oil level measuring device provided in this embodiment, including oil level gauge for transformer.
Due to the technology of oil level measuring device technical effect provided in this embodiment and the oil level gauge for transformer of above-mentioned offer
Effect is identical, and details are not described herein again.
Finally, it should be noted that the above various embodiments is only to illustrate the technical solution of the utility model, rather than it is limited
System；Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should
Understand: it is still possible to modify the technical solutions described in the foregoing embodiments, or to some or all of
Technical characteristic is equivalently replaced；And these are modified or replaceed, it does not separate the essence of the corresponding technical solution, and this is practical new
The range of each embodiment technical solution of type.
Claims (10)
1. a kind of oil level gauge for transformer characterized by comprising telescopic rod main body, fuel outlet valve connecting tube, measurement hose and hose
Folding and unfolding component；
One end of the fuel outlet valve connecting tube is connect with the measurement hose, the other end of the fuel outlet valve connecting tube and the change
The connection of depressor fuel outlet valve, so that the transformer oil is entered in the measurement hose by the fuel outlet valve connecting tube, it is described
Measure the liquid level that hose is used for measuring transformer oil；
The measurement hose is set around on the hose folding and unfolding component far from one end of the fuel outlet valve connecting tube, and the hose is received
Component is put for driving the measurement hose mobile, to change the measurement range of the measurement hose, the measurement flexible pipe extending
One end of the hose folding and unfolding component is connect with the telescopic rod main body far from one end of the hose folding and unfolding component, described flexible
Bar main body is used to support the measurement hose.
2. oil level gauge for transformer according to claim 1, which is characterized in that the telescopic rod main body include first sleeve,
Second casing and third casing；
Second casing is set in the first sleeve, and second casing is connect with the first sleeve, and described second
Casing can be flexible relative to the length direction of the first sleeve；
The third casing is set in second casing, the third casing and second casing connection, the third
Casing can be flexible relative to the length direction of second casing；
The measurement hose is connect with the third casing far from one end of the hose folding and unfolding component；
The hose folding and unfolding component is connect with the first sleeve.
3. oil level gauge for transformer according to claim 2, which is characterized in that the hose folding and unfolding component includes idler wheel and shakes
Dynamic handle；
The shake handle is connect with the first sleeve, and the idler wheel is set in the shake handle, the idler wheel and institute
Shake handle transmission connection is stated, the shake handle drives the idler wheel rotation, so that the idler wheel drives the measurement hose
It is mobile.
4. oil level gauge for transformer according to claim 3, which is characterized in that be provided with lateral connection on the third casing
Bar, the transverse connecting rod are connect with the third casing far from one end of the hose folding and unfolding component, and the measurement hose is logical
Cross transverse connecting rod and the third casing connection.
5. oil level gauge for transformer according to claim 4, which is characterized in that further include thermometer；
The thermometer is set in the fuel outlet valve connecting tube, and the thermometer is used to measure the temperature of the transformer oil.
6. oil level gauge for transformer according to claim 1, which is characterized in that further include pressure gauge；
The pressure gauge is set in the fuel outlet valve connecting tube, and the pressure gauge is used to measure the pressure of the transformer oil.
7. oil level gauge for transformer according to claim 6, which is characterized in that further include valve；
The valve is set in the fuel outlet valve connecting tube, and the valve is used to control the on-off of the fuel outlet valve connecting tube.
8. oil level gauge for transformer according to claim 2, which is characterized in that the first sleeve, second casing and
The third casing is disposed as epoxide resin material.
9. oil level gauge for transformer according to claim 1, which is characterized in that the measurement hose is set as soft transparent material
Material.
10. a kind of oil level measuring device, which is characterized in that including the described in any item oil level gauge for transformer of claim 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821484146.8U CN208887736U (en) | 2018-09-11 | 2018-09-11 | Oil level gauge for transformer and oil level measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821484146.8U CN208887736U (en) | 2018-09-11 | 2018-09-11 | Oil level gauge for transformer and oil level measuring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208887736U true CN208887736U (en) | 2019-05-21 |
Family
ID=66511949
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821484146.8U Active CN208887736U (en) | 2018-09-11 | 2018-09-11 | Oil level gauge for transformer and oil level measuring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208887736U (en) |
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2018
- 2018-09-11 CN CN201821484146.8U patent/CN208887736U/en active Active
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