CN219915780U - Oil dielectric loss resistivity tester - Google Patents
Oil dielectric loss resistivity tester Download PDFInfo
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- CN219915780U CN219915780U CN202320842274.XU CN202320842274U CN219915780U CN 219915780 U CN219915780 U CN 219915780U CN 202320842274 U CN202320842274 U CN 202320842274U CN 219915780 U CN219915780 U CN 219915780U
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- 238000012360 testing method Methods 0.000 claims abstract description 58
- 238000000034 method Methods 0.000 claims abstract description 16
- 230000008569 process Effects 0.000 claims abstract description 13
- 238000007789 sealing Methods 0.000 claims description 3
- 239000003921 oil Substances 0.000 description 63
- 238000005516 engineering process Methods 0.000 description 6
- 238000005259 measurement Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000002480 mineral oil Substances 0.000 description 2
- 235000010446 mineral oil Nutrition 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003449 preventive effect Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000012549 training Methods 0.000 description 1
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Abstract
The utility model discloses an oil dielectric loss resistivity tester which comprises a tester main body, wherein a testing cavity is formed in the tester main body, a cover plate is rotatably arranged on the testing cavity, a first slide way is formed in the side wall of the tester main body, a lifting plate is movably arranged in the first slide way, an oil cup is movably arranged on the lifting plate, a testing head for detecting an oil sample is movably arranged in the oil cup, a current signal wire is movably arranged on the testing head, and an exhaust component for exhausting gas in the oil cup is fixedly arranged on one side, close to a first connecting rod, of the inner wall of the tester main body. In the using process, an operator injects an oil sample to be tested into the oil cup, the test head is covered tightly, the oil cup is placed on the cup seat, the current signal line and the pipeline are connected to the test head, the cover plate is closed, in the process, the lifting plate drives the oil cup to descend into a working position, and the air cylinder pumps out air bubbles and air in the oil sample to be tested in the oil cup through the pipeline.
Description
Technical Field
The utility model relates to the field of preventive instruments, in particular to an oil dielectric loss resistivity tester.
Background
The oil dielectric loss and resistivity tester is designed and manufactured according to GB/T5654-2007 measurement of relative permittivity, dielectric loss factor and DC resistivity of liquid insulating materials, is used for measuring the dielectric loss factor and DC resistivity of liquid insulating media such as insulating oil, is internally integrated with main components such as a dielectric loss oil cup, a temperature controller, a temperature sensor, a dielectric loss test bridge, an alternating current test power supply, a standard capacitor, a high-resistance meter, a DC high-voltage source and the like, can perform automatic measurement, can be provided with a color large-screen liquid crystal display, can automatically store and print out test results, and can be used proficiently without complex training of operators.
Among the prior art, an insulating oil medium loss and resistivity apparatus of publication No. "CN212433277U", including the apparatus body, the chamber of accomodating has been seted up to one side of the apparatus body of survey, it is the touch-sensitive screen body of reverse triangle shape to accomodate the intracavity, the pivot has been inserted to the relative both ends bottom of the apparatus body of survey, the pivot extends to accomodate the intracavity and runs through the touch-sensitive screen body along the bottom of the touch-sensitive screen body, the pivot rotates with the touch-sensitive screen body to be connected, pivot and the apparatus body fixed connection of survey still be provided with the locking subassembly that can extend to accomodate the intracavity on one of them end of the apparatus body, be provided with unlocking hole and locking hole with locking subassembly looks adaptation respectively on the terminal surface that the touch-sensitive screen body is close to the locking subassembly, unlocking hole and locking hole are located the opposite ends of same pitch arc, just the locking hole is located the one end that the apparatus body was kept away from to the pitch arc. The utility model has the advantages that the touch screen body can be contained in the tester body, so that the occurrence of misoperation of the touch screen in the testing process is reduced.
However, the prior art still has great disadvantages, such as:
1. in the process of pouring the insulating oil into the oil cup, air can be mixed, so that a large amount of bubbles are generated in the insulating oil, and because the insulating oil is mineral oil, the air remains in the mineral oil for a long time and cannot be automatically discharged in a short time, so that in the measuring process, the measured numerical value is influenced.
2. The oil cup is generally arranged in the cavity of the tester, so that the placement and the taking of the oil cup are inconvenient, if the operation is careless, the oil cup can be poured, a test oil sample in the oil cup is scattered, the operation table surface of the tester is polluted, and even the short circuit damage of electronic components is caused, so that the normal operation of the tester is influenced.
Disclosure of Invention
The utility model aims to provide an oil dielectric loss resistivity tester for solving the problems in the background technology.
In order to achieve the above purpose, the present utility model provides the following technical solutions:
the oil dielectric loss resistivity tester comprises a tester main body, wherein a testing cavity is formed in one side of the tester main body, a cover plate is rotatably arranged on the testing cavity, a first connecting rod is rotatably arranged on the cover plate, and a sliding block is fixedly arranged on the first connecting rod;
a plurality of first slide ways are formed in the side wall of the main body of the tester, lifting plates are movably arranged in the first slide ways, a second slide way is formed in one end, close to the first connecting rod, of the lifting plates, the sliding blocks are movably arranged in the second slide ways, when the cover plate rotates, the first connecting rod is driven to move, and the sliding blocks on the first connecting rod drive the lifting plates to move;
the lifting plate is movably provided with an oil cup for containing an oil sample, a test head for detecting the oil sample is movably arranged in the oil cup, a current signal wire is movably arranged on the test head, one end of the current signal wire is movably connected with the test head, and the other end of the current signal wire is connected with the tester main body;
and an exhaust component for exhausting the gas in the oil cup is fixedly arranged on one side, close to the first connecting rod, of the inner wall of the tester main body.
Preferably, the exhaust assembly comprises a cylinder fixedly arranged on the inner wall of the main body of the tester, a piston rod is movably arranged in the cylinder, one end of the piston rod, far away from the cylinder, is rotationally provided with a second connecting rod, the second connecting rod is rotationally arranged on the inner wall of the main body of the tester, one end of the second connecting rod, far away from the cylinder, is rotationally arranged in the middle of a first connecting rod, the first connecting rod is driven to move when the cover plate rotates, the first connecting rod drives the second connecting rod to rotate, and the second connecting rod drives the piston rod to move in the cylinder.
Preferably, one end of the air cylinder far away from the second connecting rod is fixedly provided with a pipeline, one end of the pipeline is fixedly arranged at the bottom of the air cylinder and communicated with the air cylinder, and the other end of the pipeline is movably arranged on the test head and communicated with the test head.
Preferably, a first one-way valve is fixedly arranged at one end, close to the pipeline, of the cylinder, and a second one-way valve is fixedly arranged on the side wall, close to the pipeline, of the cylinder;
when the piston rod moves away from the cylinder, the gas in the pipeline pushes the first one-way valve open due to the reduction of the gas pressure in the cylinder, so that the gas in the oil cup is pumped into the cylinder through the pipeline, and the first one-way valve is kept closed in the process;
when the first one-way valve moves in the direction of approaching the cylinder, the first one-way valve keeps closed, and the gas in the cylinder pushes the second one-way valve open due to the increase of the air pressure in the cylinder, so that the gas in the cylinder is discharged.
Preferably, an L-shaped pipeline is arranged in the test head, the L-shaped pipeline is communicated with the pipeline, and a gasket for sealing is fixedly arranged at one end of the test head, which is close to the oil cup.
Preferably, a cup seat for placing the oil cup is fixedly arranged on the lifting plate.
Preferably, a touch display screen is fixedly arranged on one side, far away from the testing cavity, of the tester main body.
Compared with the prior art, the utility model has the beneficial effects that:
1. through the setting of exhaust subassembly, need not set up unnecessary former moving component, at the in-process that the apron closed, just can realize taking out the gas in the oil cup, reduce the bubble in the oil sample that awaits measuring, reduce measuring error to realize the more accurate measurement to the oil sample data that awaits measuring.
2. Through the setting of lifter plate, at the in-process that the apron was opened, the apron drove first connecting rod motion, and the lifter plate rises under the drive of first connecting rod to realize that the oil cup is ejecting from the test chamber, make operating personnel more convenient take and place the oil cup.
In the using process of the utility model, an operator injects an oil sample to be tested into the oil cup, covers the testing head, places the oil cup on the cup seat, connects the current signal line and the pipeline on the testing head, closes the cover plate, and in the closing process of the cover plate, the lifting plate drives the oil cup to descend into the working position, and the air cylinder pumps out air bubbles and air in the oil sample to be tested in the oil cup through the pipeline.
Drawings
FIG. 1 is a schematic perspective view of the whole structure of the present utility model;
FIG. 2 is a schematic perspective view of the oil cup movably arranged in the cup sleeve;
FIG. 3 is a schematic perspective view of a first link rotatably disposed on a cover plate according to the present utility model;
FIG. 4 is a schematic view showing a three-dimensional structure of a pipeline fixedly arranged at the bottom of a cylinder;
FIG. 5 is a schematic perspective view of the pipe connection of the present utility model to a test head;
FIG. 6 is a schematic diagram showing a three-dimensional structure of a piston rod movably arranged in a cylinder according to the utility model;
FIG. 7 is a schematic diagram showing a three-dimensional structure of an L-shaped pipeline arranged on a test head according to the present utility model;
fig. 8 is a schematic perspective view of an L-shaped pipeline of the present utility model on a test head.
In the figure: 1. a meter body; 2. a test chamber; 3. a cover plate; 4. a first link; 5. a slide block; 6. a first slideway; 7. a lifting plate; 8. a second slideway; 9. an oil cup; 10. a test head; 11. a current signal line; 12. a cylinder; 13. a piston rod; 14. a second link; 15. a pipe; 16. a first one-way valve; 17. a second one-way valve; 18. an L-shaped pipe; 19. a gasket; 20. a cup holder; 21. and touching the display screen.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1-8, the present utility model provides a technical solution:
embodiment one:
the utility model provides an oil dielectric loss resistivity tester, including apparatus main part 1, the inside intelligent chip that is provided with of apparatus main part 1 in this embodiment, can carry out analysis and data processing to the oil sample that awaits measuring, this device is the device commonly used in this technical field, be the technique well known to the person skilled in the art, this is not repeated in this place, test chamber 2 has been seted up to one side of apparatus main part 1, set up the round hole that supplies oil cup 9 to rise and descend in the test chamber 2 in this embodiment, one side that apparatus main part 1 kept away from test chamber 2 is fixed and is provided with touch display 21, touch display 21 and intelligent chip signal connection in this embodiment, operating personnel adjusts the test parameter through touch display 21;
the cover plate 3 is rotatably arranged on the test cavity 2, the first connecting rod 4 is rotatably arranged on the cover plate 3, the cover plate 3 in the embodiment can drive the first connecting rod 4 to move when being opened and closed, the sliding block 5 is fixedly arranged on the first connecting rod 4, the sliding block 5 in the embodiment can move in the second slideway 8, and the lifting plate 7 can be driven to move up and down in the moving process of the sliding block 5;
a plurality of first slide ways 6 are formed in the side wall of the tester main body 1, a lifting plate 7 is movably arranged in the first slide ways 6, a second slide way 8 is formed in one end, close to the first connecting rod 4, of the lifting plate 7, a sliding block 5 is movably arranged in the second slide way 8, when the cover plate 3 rotates, the first connecting rod 4 is driven to move, the sliding block 5 on the first connecting rod 4 drives the lifting plate 7 to move, and a cup seat 20 for placing an oil cup 9 is fixedly arranged on the lifting plate 7;
the lifting plate 7 is movably provided with an oil cup 9 for containing an oil sample, the oil cup 9 in the embodiment is a device commonly used in the technical field, which is a technology well known to a person skilled in the art, details are not made here, the oil cup 9 is movably provided with a test head 10 for detecting the oil sample, the test head 10 in the embodiment is a device commonly used in the technical field, which is a technology well known to a person skilled in the art, details are not made here, the test head 10 is movably provided with a current signal wire 11, the current signal wire 11 in the embodiment can transmit data detected by the test head 10 to the intelligent chip, which is a technology commonly used in the technical field, which is a technology well known to a person in the art, one end of the current signal wire 11 is movably connected with the test head 10, the current signal wire 11 in the embodiment is connected with the test head 10 in a plug-in mode, which is a technology well known to a person in the art, details are not made here, and the other end of the current signal wire 11 is connected with the tester main body 1;
an L-shaped pipeline 18 is arranged in the test head 10, the L-shaped pipeline 18 is communicated with the pipeline 15, when the L-shaped pipeline 18 is arranged, the position of an opening of the L-shaped pipeline 18 on the test head 10 is higher than the height of an oil sample in the oil cup 9 so as to prevent an exhaust component from sucking the oil sample into the pipeline 15 during exhaust, and a gasket 19 for sealing is fixedly arranged at one end of the test head 10 close to the oil cup 9;
an exhaust component for exhausting the gas in the oil cup 9 is fixedly arranged on one side of the inner wall of the tester main body 1 close to the first connecting rod 4.
Embodiment two:
on the basis of the first embodiment, considering that a large amount of bubbles are doped after the oil sample to be measured is poured into the oil cup 9 and the time for the bubbles to discharge the oil sample to be measured is long, an exhaust assembly is provided in the embodiment, and the air cylinder 12 can extract the air in the oil cup 9 during the movement of the cover plate 3, and the exhaust assembly in the first embodiment is described;
the exhaust assembly comprises an air cylinder 12 fixedly arranged on the inner wall of the tester main body 1, a piston rod 13 is movably arranged in the air cylinder 12, good air tightness is achieved between the air cylinder 12 and the piston rod 13 in the embodiment, air in the oil cup 9 can be effectively pumped out, one end of the piston rod 13, which is far away from the air cylinder 12, is rotatably provided with a second connecting rod 14, the second connecting rod 14 is rotatably arranged on the inner wall of the tester main body 1, one end of the second connecting rod 14, which is far away from the air cylinder 12, is rotatably arranged in the middle of the first connecting rod 4, when the cover plate 3 rotates, the first connecting rod 4 is driven to move, the first connecting rod 4 drives the second connecting rod 14 to rotate, and the second connecting rod 14 drives the piston rod 13 to move in the air cylinder 12;
the air cylinder 12 is fixedly provided with a pipeline 15 at one end far away from the second connecting rod 14, the pipeline 15 in the embodiment has good air tightness, and is in good air tightness connection with the air cylinder 12 and the test head 10, one end of the pipeline 15 is fixedly arranged at the bottom of the air cylinder 12 and is communicated with the air cylinder 12, the other end of the pipeline 15 is movably arranged on the test head 10 and is communicated with the test head 10;
a first one-way valve 16 is fixedly arranged at one end, close to the pipeline 15, of the cylinder 12, a second one-way valve 17 is fixedly arranged on the side wall, close to the pipeline 15, of the cylinder 12, and the first one-way valve 16 and the second one-way valve 17 in the embodiment are commonly used devices in the technical field, are well known to those skilled in the art, and are not repeated here;
when the piston rod 13 moves away from the cylinder 12, the gas in the pipe 15 pushes the first one-way valve 16 open due to the reduced gas pressure in the cylinder 12, so that the gas in the oil cup 9 is pumped into the cylinder 12 through the pipe 15, during which the first one-way valve 16 remains closed;
when the first check valve 16 moves in the direction of approaching the cylinder 12 at the piston rod 13, the first check valve 16 remains closed, and the gas in the cylinder 12 pushes the second check valve 17 open due to the increase of the gas pressure in the cylinder 12, thereby discharging the gas in the cylinder 12.
Working principle: in the using process of the utility model, an operator injects an oil sample to be tested into an oil cup 9, covers a test head 10, places the oil cup 9 on a cup seat 20, connects a current signal line 11 and a pipeline 15 on the test head 10, closes a cover plate 3, and in the closing process of the cover plate 3, a first connecting rod 4 moves downwards along with the cover plate 3, a sliding block 5 on the first connecting rod 4 drives a lifting plate 7 to move, and the lifting plate 7 can only move along the first slideway 6 because the lifting plate 7 is limited in the first slideway 6;
when the lifting plate 7 descends, the first connecting rod 4 drives the second connecting rod 14 to rotate, the second connecting rod 14 drives the piston rod 13 to move away from the cylinder 12, and the gas in the pipeline 15 pushes the first one-way valve 16 open due to the reduction of the gas pressure in the cylinder 12, so that the gas in the oil cup 9 is pumped into the cylinder 12 through the pipeline 15, and in the process, the first one-way valve 16 is kept closed;
after the oil sample to be tested is tested by operating the tester, the cover plate 3 is opened by an operator, at the moment, the lifting plate 7 is driven to move upwards by the first connecting rod 4, meanwhile, the second connecting rod 14 is driven by the first connecting rod 4 to rotate, the piston rod 13 is driven by the second connecting rod 14 to move towards the direction close to the cylinder 12, the first one-way valve 16 is kept closed, and the air pressure in the cylinder 12 is increased, so that the second one-way valve 17 is propped open by air in the cylinder 12, and the air in the cylinder 12 is discharged.
Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. An oil dielectric loss resistivity tester, comprising a tester body (1), characterized in that: a testing cavity (2) is formed in one side of the tester main body (1), a cover plate (3) is rotatably arranged on the testing cavity (2), a first connecting rod (4) is rotatably arranged on the cover plate (3), and a sliding block (5) is fixedly arranged on the first connecting rod (4);
a plurality of first slide ways (6) are formed in the side wall of the tester main body (1), lifting plates (7) are movably arranged in the first slide ways (6), a second slide way (8) is formed in one end, close to the first connecting rod (4), of each lifting plate (7), the sliding blocks (5) are movably arranged in the second slide ways (8), when the cover plate (3) rotates, the first connecting rod (4) is driven to move, and the sliding blocks (5) on the first connecting rod (4) drive the lifting plates (7) to move;
an oil cup (9) for containing an oil sample is movably arranged on the lifting plate (7), a test head (10) for detecting the oil sample is movably arranged in the oil cup (9), a current signal wire (11) is movably arranged on the test head (10), one end of the current signal wire (11) is movably connected with the test head (10), and the other end of the current signal wire is connected with the tester main body (1);
an exhaust component for exhausting the gas in the oil cup (9) is fixedly arranged on one side, close to the first connecting rod (4), of the inner wall of the tester main body (1).
2. An oil dielectric loss resistivity tester as claimed in claim 1, wherein: the exhaust assembly comprises a cylinder (12) fixedly arranged on the inner wall of a tester main body (1), a piston rod (13) is movably arranged inside the cylinder (12), one end of the piston rod (13) away from the cylinder (12) is rotationally provided with a second connecting rod (14), the second connecting rod (14) is rotationally arranged on the inner wall of the tester main body (1), one end of the second connecting rod (14) away from the cylinder (12) is rotationally arranged in the middle of a first connecting rod (4), when the cover plate (3) rotates, the first connecting rod (4) is driven to move, the first connecting rod (4) is driven to rotate, and the second connecting rod (14) is driven to move in the cylinder (12).
3. An oil dielectric loss resistivity tester as claimed in claim 2, wherein: one end of the air cylinder (12) far away from the second connecting rod (14) is fixedly provided with a pipeline (15), one end of the pipeline (15) is fixedly arranged at the bottom of the air cylinder (12) and communicated with the air cylinder (12), and the other end of the pipeline (15) is movably arranged on the test head (10) and communicated with the test head (10).
4. An oil dielectric loss resistivity tester as claimed in claim 3, wherein: a first one-way valve (16) is fixedly arranged at one end, close to the pipeline (15), of the cylinder (12), and a second one-way valve (17) is fixedly arranged on the side wall, close to the pipeline (15), of the cylinder (12);
when the piston rod (13) moves away from the cylinder (12), the gas in the pipeline (15) pushes the first one-way valve (16) open due to the reduced gas pressure in the cylinder (12), so that the gas in the oil cup (9) is pumped into the cylinder (12) through the pipeline (15), and the first one-way valve (16) is kept closed in the process;
when the first one-way valve (16) moves in the direction of approaching the cylinder (12) at the piston rod (13), the first one-way valve (16) is kept closed, and the gas in the cylinder (12) pushes the second one-way valve (17) open due to the increase of the gas pressure in the cylinder (12), so that the gas in the cylinder (12) is discharged.
5. An oil dielectric loss resistivity tester according to claim 4, wherein: an L-shaped pipeline (18) is arranged in the test head (10), the L-shaped pipeline (18) is communicated with the pipeline (15), and a gasket (19) for sealing is fixedly arranged at one end, close to the oil cup (9), of the test head (10).
6. An oil dielectric loss resistivity tester as claimed in claim 1, wherein: the lifting plate (7) is fixedly provided with a cup seat (20) for placing the oil cup (9).
7. An oil dielectric loss resistivity tester as claimed in claim 1, wherein: one side of the tester main body (1) far away from the test cavity (2) is fixedly provided with a touch display screen (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320842274.XU CN219915780U (en) | 2023-04-17 | 2023-04-17 | Oil dielectric loss resistivity tester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320842274.XU CN219915780U (en) | 2023-04-17 | 2023-04-17 | Oil dielectric loss resistivity tester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219915780U true CN219915780U (en) | 2023-10-27 |
Family
ID=88440372
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320842274.XU Active CN219915780U (en) | 2023-04-17 | 2023-04-17 | Oil dielectric loss resistivity tester |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219915780U (en) |
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2023
- 2023-04-17 CN CN202320842274.XU patent/CN219915780U/en active Active
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