CN110726514A - Oil leakage detection device for transformer oil tank - Google Patents
Oil leakage detection device for transformer oil tank Download PDFInfo
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- CN110726514A CN110726514A CN201911061161.0A CN201911061161A CN110726514A CN 110726514 A CN110726514 A CN 110726514A CN 201911061161 A CN201911061161 A CN 201911061161A CN 110726514 A CN110726514 A CN 110726514A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
Abstract
The invention discloses a transformer oil tank oil leakage detection device, which comprises a machine body, wherein a working cavity is arranged in the machine body, a lifting mechanism is arranged in the working cavity, the lifting mechanism comprises a sealing plate arranged on the lower side of the machine body, an alarm mechanism is arranged on the upper side of the lifting mechanism, the alarm mechanism comprises a moving block, a moving groove with a forward opening is arranged on the rear end wall of the working cavity, an inflation mechanism is arranged on the left side of the alarm mechanism, and the inflation mechanism comprises a baffle fixed on the rear end wall of the working cavity.
Description
Technical Field
The invention relates to the field of oil tank detection, in particular to a transformer oil tank oil leakage detection device.
Background
The transformer is a device for changing alternating voltage by utilizing the principle of electromagnetic induction, and the main components are a primary coil, a secondary coil and an iron core (magnetic core), and the main functions of the transformer are voltage conversion, current conversion, impedance conversion, isolation, voltage stabilization (magnetic saturation transformer) and the like, and the transformer can be divided into a power transformer and a special transformer (electric furnace transformer, rectification transformer, power frequency test transformer, voltage regulator, mining transformer, audio transformer, intermediate frequency transformer, high frequency transformer, impact transformer, instrument transformer, electronic transformer, reactor, mutual inductor and the like) according to the application. The oil tank is arranged in the transformer, the oil tank can effectively cool the transformer, and if the oil tank has an oil leakage phenomenon, serious consequences can be caused.
Disclosure of Invention
The invention aims to solve the technical problem of providing a transformer oil tank oil leakage detection device, and solves the problems that water resources are wasted by a water detection method, and detection is not performed, so that a large problem possibly exists.
The invention is realized by the following technical scheme.
The oil leakage detection device for the transformer oil tank comprises a machine body, wherein a working cavity is arranged in the machine body, a lifting mechanism is arranged in the working cavity, the lifting mechanism comprises a sealing plate arranged on the lower side of the machine body, two telescopic grooves with downward openings are arranged in the left end wall and the right end wall of the working cavity, a moving rod can move up and down in the telescopic grooves, the sealing plate is fixedly arranged on the lower end surface of the moving rod, a telescopic spring is connected between the upper end surface of the moving rod and the upper end wall of the telescopic groove, a thin rope is connected to the upper end surface of the moving rod on the left side, and the oil tank can be sealed by the sealing plate, so that the oil tank;
an alarm mechanism is arranged on the upper side of the lifting mechanism, the alarm mechanism comprises a moving block, a moving groove with a forward opening is formed in the rear end wall of the working cavity, the moving block is arranged in the moving groove and can move left and right, a telescopic spring is connected between the left end face of the moving block and the left end wall of the moving groove, the left end face of the moving block is connected with a fine wire, a push rod is fixedly arranged on the lower end face of the moving block, a loading rod is fixedly arranged on the left end face of the push rod, a plug is fixedly arranged on the left end face of the loading rod, and the push;
the left side of the alarm mechanism is provided with an inflation mechanism, the inflation mechanism comprises a baffle fixed on the rear end wall of the working cavity, a hollow rod is fixedly arranged on the lower end wall of the working cavity, an inflation inlet is formed in the hollow rod, the upper end of the hollow rod is connected with an air bag, a pressing plate is arranged on the right side of the air bag, and when the pressing plate moves leftwards to be close to the baffle, the air bag can be flattened, so that air in the air bag passes through the inflation inlet.
Preferably, the lifting mechanism further comprises a communicating block fixed on the lower end wall of the working cavity, a communicating groove is formed in the communicating block in a vertically penetrating manner, a containing groove with a rightward opening is formed in the left end wall of the communicating groove, a rotating shaft is arranged on the rear end wall of the containing groove in a rotating manner, a rotating groove is fixedly formed in the rotating shaft, a belt cavity is formed in the rear side of the containing groove, a first belt wheel is fixedly arranged on the rotating shaft, a rotating torsion spring is arranged between the rotating shaft and the front end wall of the belt cavity, a belt is wound on the first belt wheel, when the rotating groove is in a horizontal state, air is not allowed to pass through the communicating groove, a blocking rod groove is formed in the rear end wall of the working cavity, a blocking rod is arranged in the blocking rod groove in a vertically movable manner, a rack is fixedly arranged on the left end face of the blocking rod, a blocking rod groove is connected between the lower end face of the blocking rod and, the transmission shaft is sequentially and fixedly provided with a contact gear and a second belt wheel from back to front, the second belt wheel is wound with the belt, and the contact gear is meshed with the rack.
Preferably, the alarm mechanism further comprises a fixed block fixed on the rear end wall of the working cavity, a through groove is formed in the fixed block in a vertically through mode, a reset groove with a rightward opening is formed in the left end wall of the through groove, a sliding groove is formed in the right end wall of the through groove in a through mode, a sliding block and a stress block are arranged in the sliding groove in a horizontally moving mode, the sliding block is arranged on the left side of the stress block, a connecting spring is arranged between the sliding block and the stress block, a reset spring is arranged between the left end face of the sliding block and the left end wall of the reset groove, a transmission groove is formed in the upper end wall of the reset groove in a through mode, a top block is arranged in the transmission groove in a vertically moving mode, a transmission rod is fixedly arranged on the upper end face of the top block, a loading plate is fixedly arranged on the upper end face of the transmission rod, the loudspeaker sets up the socket left side, loudspeaker with be connected with the electric wire between the socket.
Preferably, the inflation mechanism further comprises an object carrying block, a vertical groove is formed in the rear end wall of the working cavity, the object carrying block is arranged in the vertical groove in a vertically movable mode, the upper end surface of the carrying block is connected with the string, the lower end surface of the carrying block is fixedly provided with a motor, a motor shaft is rotationally arranged on the lower end surface of the motor, a motor bevel gear is fixedly arranged on the motor shaft, the upper end wall of the working cavity is provided with a rotating groove with a downward opening, a driven shaft can be rotatably arranged in the rotating groove, a reset torsion spring is arranged between the driven shaft and the rotating groove, a transmission bevel gear and a transmission gear are sequentially and fixedly arranged on the driven shaft from top to bottom, the transmission bevel gear can be meshed with the motor bevel gear, the rear end wall of the working cavity is provided with a transverse groove, a transverse rack is arranged in the transverse groove and can move left and right, the right end face of the transverse rack is connected with the fine wire, and the lower end face of the transverse rack is fixedly provided with the pressing plate.
Preferably, the connection spring elastic force is greater than the return spring elastic force.
The invention has the beneficial effects that: this device easy operation uses the closing plate to plug up the back with the mouth of oil tank, and the starter motor presses this device downwards, and this device can aerify in the oil tank, if the oil tank does not have the oil leak, then this device can not send the warning, if the oil tank oil leak, then this device can send the warning, if sealed not thorough, then the motor can idle run, and operating personnel can know the test failure.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the invention, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.
FIG. 1 is a schematic overall full-section front view structure diagram of a transformer tank oil leakage detection device according to the present invention;
FIG. 2 is an enlarged view of the point A in FIG. 1;
FIG. 3 is a schematic view of the direction B-B in FIG. 1;
fig. 4 is a schematic view in the direction of C-C in fig. 1.
Detailed Description
The invention will now be described in detail with reference to fig. 1-4, wherein for ease of description the orientations described hereinafter are now defined as follows: the up, down, left, right, and front-back directions described below correspond to the up, down, left, right, and front-back directions in the projection relationship of fig. 1 itself.
The mechanical mechanism schematic diagram of the oil leakage detection device for the transformer oil tank, which is described with reference to fig. 1-4, includes a body 13, a working chamber 69 is arranged in the body 13, a lifting mechanism 70 is arranged in the working chamber 69, the lifting mechanism 70 includes a sealing plate 11 arranged on the lower side of the body 13, two telescopic slots 16 with downward openings are arranged in the left and right end walls of the working chamber 69, a moving rod 12 is arranged in the telescopic slots 16 in a vertically movable manner, the sealing plate 11 is fixedly arranged on the lower end surface of the moving rod 12, a telescopic spring 15 is arranged on the upper end surface of the moving rod 12 and the upper end wall of the telescopic slot 16 in a connected manner, a thin rope 14 is connected to the upper end surface of the moving rod 12 on the left side, the sealing plate 11 can seal the oil;
an alarm mechanism 71 is arranged on the upper side of the lifting mechanism 70, the alarm mechanism 71 comprises a moving block 34, a moving groove 32 with a forward opening is formed in the rear end wall of the working cavity 69, the moving block 34 is arranged in the moving groove 32 and can move left and right, an expansion spring 33 is connected between the left end surface of the moving block 34 and the left end wall of the moving groove 32, a thin wire 31 is connected to the left end surface of the moving block 34, a push rod 36 is fixedly arranged on the lower end surface of the moving block 34, a carrying rod 35 is fixedly arranged on the left end surface of the push rod 36, a plug 37 is fixedly arranged on the left end surface of the carrying rod 35, and whether oil leakage;
the left side of the alarm mechanism 71 is provided with an inflation mechanism 72, the inflation mechanism 72 comprises a baffle 18 fixed on the rear end wall of the working chamber 69, the lower end wall of the working chamber 69 is fixedly provided with a hollow rod 51, an inflation port 50 is arranged in the hollow rod 51, the upper end of the hollow rod 51 is connected with an air bag 17, the right side of the air bag 17 is provided with a pressing plate 10, and when the pressing plate 10 moves leftwards to be close to the baffle 18, the air bag 17 can be flattened, so that air in the air bag 17 can pass through the inflation port 50.
Advantageously, describing the lifting mechanism 70 in detail, the lifting mechanism 70 further includes a communicating block 42 fixed to a lower end wall of the working chamber 69, a communicating groove 43 is vertically penetrated in the communicating block 42, a receiving groove 41 with a right opening is formed in a left end wall of the communicating groove 43, a rotating shaft 45 is rotatably provided in a rear end wall of the receiving groove 41, a rotating groove 44 is fixedly provided on the rotating shaft 45, a belt chamber 67 is provided behind the receiving groove 41, a first pulley 66 is fixedly provided on the rotating shaft 45, a rotating torsion spring 46 is provided between the rotating shaft 45 and a front end wall of the belt chamber 67, a belt 47 is wound on the first pulley 66, when the rotating groove 44 is in a horizontal state, air is not allowed to pass through the communicating groove 43, a blocking rod groove 76 is provided in a rear end wall of the working chamber 69, a blocking rod 39 is vertically movably provided in the blocking rod groove 76, a rack 40 is fixedly provided on a left end surface of the blocking rod 39, the lower end face of the stop lever 39 and the lower end wall of the stop lever groove 76 are connected with the stop lever groove 76, the rear end wall of the working cavity 69 rotates to be provided with the transmission shaft 48, the transmission shaft 48 is fixedly provided with the contact gear 68 and the second belt wheel 49 from back to front, the second belt wheel 49 is wound with the belt 47, and the contact gear 68 is meshed with the rack 40.
Beneficially, the alarm mechanism 71 is described in detail, the alarm mechanism 71 further includes a fixed block 52 fixed on the rear end wall of the working chamber 69, a through groove 61 is vertically penetrated in the fixed block 52, a reset groove 65 with a right opening is formed in the left end wall of the through groove 61, a sliding groove 64 is penetrated in the right end wall of the through groove 61, a sliding block 62 and a stressed block 38 are arranged in the sliding groove 64 and can move left and right, the sliding block 62 is arranged on the left side of the stressed block 38, a connecting spring 63 is arranged between the sliding block 62 and the stressed block 38, a reset spring 53 is arranged between the left end surface of the sliding block 62 and the left end wall of the reset groove 65, a transmission groove 77 is penetrated in the upper end wall of the reset groove 65, a top block 54 is arranged in the transmission groove 77 and can move up and down, a transmission rod 55 is fixedly arranged on the upper end surface of the top block 54, a loading plate, carry under the thing board 57 terminal surface with fixed block 52 up end is connected with contact spring 56, carry the fixed loudspeaker 58 and the socket 60 that are equipped with of thing board 57 up end, loudspeaker 58 sets up the socket 60 left side, loudspeaker 58 with be connected with electric wire 59 between the socket 60.
Beneficially, the inflation mechanism 72 is described in detail, the inflation mechanism 72 further includes a carrying block 30, a vertical groove 29 is formed in the rear end wall of the working chamber 69, the carrying block 30 is vertically arranged in the vertical groove 29, the string 14 is connected to the upper end surface of the carrying block 30, a motor 24 is fixedly arranged on the lower end surface of the carrying block 30, a motor shaft 23 is rotatably arranged on the lower end surface of the motor 24, a motor bevel gear 22 is fixedly arranged on the motor shaft 23, a rotating groove 25 with a downward opening is formed in the upper end wall of the working chamber 69, a driven shaft 27 is rotatably arranged in the rotating groove 25, a reset torsion spring 26 is arranged between the driven shaft 27 and the rotating groove 25, a transmission bevel gear 21 and a transmission gear 20 are sequentially fixedly arranged on the driven shaft 27 from top to bottom, the transmission bevel gear 21 can be meshed with the motor bevel gear 22, a transverse groove 19 is formed in the rear end wall of the working chamber 69, a transverse rack 80 is arranged in the transverse groove 19 in a left-right moving mode, the thin wire 31 is connected to the right end face of the transverse rack 80, and the pressing plate 10 is fixedly arranged on the lower end face of the transverse rack 80.
Advantageously, the connecting spring 63 is more elastic than the return spring 53.
Sequence of mechanical actions of the whole device:
(1) place this device in the oil tank upside, starter motor 24, cover the mouth of oil tank with closing plate 11, starter motor 24, manual fuselage 13 of pressing downwards for closing plate 11 is close to fuselage 13, carriage release 12 moves with closing plate 11 together, carriage release 12 rebound, string 14 relaxs, it is moved downwards that thing piece 30 receives gravity, thing piece 30 drives motor 24 and moves downwards, motor 24 drives motor bevel gear 22 through motor shaft 23 and moves downwards, motor bevel gear 22 moves downwards and meshes with transmission bevel gear 21.
(2) The motor 24 drives the motor bevel gear 22 to rotate through the motor shaft 23, the motor bevel gear 22 is meshed to drive the transmission bevel gear 21 to rotate, the transmission bevel gear 21 drives the transmission gear 20 to rotate through the driven shaft 27, the transmission gear 20 is meshed to drive the cross rack 80 to move leftwards, the cross rack 80 drives the pressing plate 10 to move leftwards, and the pressing plate 10 is close to the baffle 18 to press air in the air bag 17 into the oil tank through the air charging port 50.
(3) If the oil leaks in the oil tank, air cannot enter the communicating groove 43, at the moment, the transverse rack 80 pulls the moving block 34 leftwards through the thin wire 31, the moving block 34 drives the carrying rod 35 to move leftwards through the pushing rod 36, the plug 37 moves leftwards along with the carrying rod 35, the pushing rod 36 pushes the stressed block 38 to move leftwards, the stressed block 38 drives the sliding block 62 to move leftwards through the connecting spring 63, the sliding block 62 moves leftwards, the ejecting block 54 is pushed to move upwards, the ejecting block 54 drives the carrying plate 57 to move upwards through the transmission rod 55, the plug 37 moves leftwards and is inserted into the socket 60, the horn 58 gives an alarm to remind that the oil tank leaks.
(4) If the oil tank is not leaked, air enters the communicating groove 43, the rotating groove 44 is pushed to drive the rotating shaft 45 to rotate anticlockwise, the first belt wheel 66 rotates along with the rotating shaft 45, the rotating shaft 45 drives the second belt wheel 49 to rotate through the friction of the belt 47, the second belt wheel 49 drives the contact gear 68 to rotate through the transmission shaft 48, the contact gear 68 is meshed with the driving rack 40 to drive the rack 40 to move upwards, the stop rod 39 moves upwards along with the rack 40, the second belt wheel 49 moves upwards to stop the sliding block 62 to move leftwards, when the push rod 36 moves leftwards, the connecting spring 63 is compressed, the socket 60 cannot move upwards, the plug 37 cannot be inserted into the socket 60, and the horn 58 cannot give an alarm.
(5) If the body 13 is not pressed downward by force during the detection so that the sealing plate 11 seals the oil tank, the motor bevel gear 22 and the transmission bevel gear 21 cannot be engaged, and the motor bevel gear 22 idles, failing in the detection.
(6) After the detection is finished, the motor 24 is turned off, the machine body 13 is loosened, the expansion spring 15 pushes the sealing plate 11 to be far away from the machine body 13, the torsion spring 46 is rotated to drive the rotary groove 44 to return to the horizontal state, the expansion spring 33 pushes the moving block 34 to move rightwards, and the return spring 53 pushes the sliding block 62 to move rightwards.
The above embodiments are merely illustrative of the technical ideas and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.
Claims (5)
1. The utility model provides a transformer tank oil leak detection device, includes the fuselage, its characterized in that:
a working cavity is arranged in the machine body, a lifting mechanism is arranged in the working cavity and comprises a sealing plate arranged on the lower side of the machine body, two telescopic grooves with downward openings are arranged in the left and right end walls of the working cavity, a moving rod can be arranged in each telescopic groove in a vertically movable manner, the sealing plate is fixedly arranged on the lower end surface of each moving rod, a telescopic spring is arranged on the upper end surface of each moving rod and connected with the upper end wall of each telescopic groove, a thin rope is connected to the upper end surface of each moving rod on the left side, the oil tank can be sealed by the sealing plate, and the oil tank can be conveniently detected by;
an alarm mechanism is arranged on the upper side of the lifting mechanism, the alarm mechanism comprises a moving block, a moving groove with a forward opening is formed in the rear end wall of the working cavity, the moving block is arranged in the moving groove and can move left and right, a telescopic spring is connected between the left end face of the moving block and the left end wall of the moving groove, the left end face of the moving block is connected with a fine wire, a push rod is fixedly arranged on the lower end face of the moving block, a loading rod is fixedly arranged on the left end face of the push rod, a plug is fixedly arranged on the left end face of the loading rod, and the push;
the left side of the alarm mechanism is provided with an inflation mechanism, the inflation mechanism comprises a baffle fixed on the rear end wall of the working cavity, a hollow rod is fixedly arranged on the lower end wall of the working cavity, an inflation inlet is formed in the hollow rod, the upper end of the hollow rod is connected with an air bag, a pressing plate is arranged on the right side of the air bag, and when the pressing plate moves leftwards to be close to the baffle, the air bag can be flattened, so that air in the air bag passes through the inflation inlet.
2. The oil leakage detection device of the oil tank of the transformer according to claim 1, characterized in that: the lifting mechanism further comprises a communicating block fixed on the lower end wall of the working cavity, a communicating groove is formed in the communicating block in a vertically penetrating mode, a containing groove with a right opening is formed in the left end wall of the communicating groove, a rotating shaft is arranged on the rear end wall of the containing groove in a rotating mode, a rotating groove is fixedly formed in the rotating shaft, a belt cavity is formed in the rear side of the containing groove, a first belt wheel is fixedly arranged on the rotating shaft, a rotating torsion spring is arranged between the rotating shaft and the front end wall of the belt cavity, a belt is wound on the first belt wheel, when the rotating groove is in a horizontal state, air is not allowed to pass through the communicating groove, a blocking rod groove is formed in the rear end wall of the working cavity, a blocking rod is arranged in the blocking rod groove in a vertically moving mode, a blocking rod is fixedly arranged on the left end face of the blocking rod, a blocking rod groove is connected between the lower end face of the blocking, the transmission shaft is sequentially and fixedly provided with a contact gear and a second belt wheel from back to front, the second belt wheel is wound with the belt, and the contact gear is meshed with the rack.
3. The oil leakage detection device of the oil tank of the transformer according to claim 1, characterized in that: the alarm mechanism further comprises a fixed block fixed on the rear end wall of the working cavity, a through groove is formed in the fixed block in a vertically through mode, a reset groove with a rightward opening is formed in the left end wall of the through groove, a sliding groove is formed in the right end wall of the through groove in a through mode, a sliding block and a stress block are arranged in the sliding groove in a horizontally moving mode, the sliding block is arranged on the left side of the stress block, a connecting spring is arranged between the sliding block and the stress block, a reset spring is arranged between the left end face of the sliding block and the left end wall of the reset groove, a transmission groove is formed in the upper end wall of the reset groove in a through mode, a top block is arranged in the transmission groove in a vertically moving mode, a transmission rod is fixedly arranged on the upper end face of the top block, a carrying plate is fixedly arranged on the upper end face of the transmission, the loudspeaker sets up the socket left side, loudspeaker with be connected with the electric wire between the socket.
4. The oil leakage detection device of the oil tank of the transformer according to claim 1, characterized in that: the inflation mechanism also comprises a carrying block, a vertical groove is arranged on the rear end wall of the working cavity, the carrying block can move up and down in the vertical groove, the upper end surface of the carrying block is connected with the string, the lower end surface of the carrying block is fixedly provided with a motor, a motor shaft is rotationally arranged on the lower end surface of the motor, a motor bevel gear is fixedly arranged on the motor shaft, the upper end wall of the working cavity is provided with a rotating groove with a downward opening, a driven shaft can be rotatably arranged in the rotating groove, a reset torsion spring is arranged between the driven shaft and the rotating groove, a transmission bevel gear and a transmission gear are sequentially and fixedly arranged on the driven shaft from top to bottom, the transmission bevel gear can be meshed with the motor bevel gear, the rear end wall of the working cavity is provided with a transverse groove, a transverse rack is arranged in the transverse groove and can move left and right, the right end face of the transverse rack is connected with the fine wire, and the lower end face of the transverse rack is fixedly provided with the pressing plate.
5. The oil leakage detection device of the oil tank of the transformer according to claim 3, wherein: the elastic force of the connecting spring is larger than that of the return spring.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911061161.0A CN110726514B (en) | 2019-11-01 | 2019-11-01 | Oil leakage detection device for transformer oil tank |
| JP2019210957A JP6764097B1 (en) | 2019-11-01 | 2019-11-22 | Oil leak inspection device for transformer tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911061161.0A CN110726514B (en) | 2019-11-01 | 2019-11-01 | Oil leakage detection device for transformer oil tank |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110726514A true CN110726514A (en) | 2020-01-24 |
| CN110726514B CN110726514B (en) | 2020-07-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911061161.0A Active CN110726514B (en) | 2019-11-01 | 2019-11-01 | Oil leakage detection device for transformer oil tank |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP6764097B1 (en) |
| CN (1) | CN110726514B (en) |
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| CN111397811A (en) * | 2020-05-27 | 2020-07-10 | 杭州忒白电子科技有限公司 | Transformer oil tank sealing detection device |
| CN112700943A (en) * | 2021-01-09 | 2021-04-23 | 李红亮 | Fixed-point absorption type transformer leakage processor and processing method thereof |
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| CN201569544U (en) * | 2009-12-01 | 2010-09-01 | 卧龙电气集团股份有限公司 | Sealing device used for leak testing operation of transformer oil tank |
| CN203643102U (en) * | 2013-12-05 | 2014-06-11 | 珠海格力电器股份有限公司 | Leakage detection tool box |
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| CN106706228A (en) * | 2016-12-01 | 2017-05-24 | 重庆速腾机械制造有限公司 | Sounding body leak detection device |
| CN207395972U (en) * | 2017-10-17 | 2018-05-22 | 河南森源重工有限公司 | A kind of oil tank of transformer leakage testing device |
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| CN110373976A (en) * | 2019-08-01 | 2019-10-25 | 三门星凯智能科技有限公司 | It is a kind of can be quickly to pavement surface tile work equipment |
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| CN110318521A (en) * | 2019-08-16 | 2019-10-11 | 义乌奥莉机械科技有限公司 | A kind of finishing sturdy device of ceramic tile |
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| CN111231715A (en) * | 2020-03-21 | 2020-06-05 | 宁波拉修智能科技有限公司 | Automatic battery charging outfit of unmanned aerial vehicle |
| CN111397811A (en) * | 2020-05-27 | 2020-07-10 | 杭州忒白电子科技有限公司 | Transformer oil tank sealing detection device |
| CN112700943A (en) * | 2021-01-09 | 2021-04-23 | 李红亮 | Fixed-point absorption type transformer leakage processor and processing method thereof |
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| Publication number | Publication date |
|---|---|
| JP6764097B1 (en) | 2020-09-30 |
| CN110726514B (en) | 2020-07-28 |
| JP2021072431A (en) | 2021-05-06 |
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