Transformer oil sampling device

Abstract

The invention discloses a transformer oil sampling device which comprises an oil storage tank, a lifting assembly and a sampling assembly, the lifting assembly is connected with the oil storage tank to drive the oil storage tank to move in the vertical direction, the sampling assembly is arranged below the oil storage tank and can move in the first direction relative to the oil storage tank, and the sampling assembly can rotate in the vertical direction relative to the oil storage tank; the sampling assembly comprises a sampling head, the sampling head comprises a body, a movable frame and a butt joint part, the body is provided with a containing cavity, the containing cavity communicates with the oil storage tank, the butt joint part is arranged at one end of the body and communicates with the containing cavity, the butt joint part is used for being connected with an oil outlet pipe of the transformer, and at least part of the movable frame is located in the containing cavity and can move relative to the body; at least part of the movable frame can open or close a valve in an oil outlet pipe of the transformer through the butt joint part, and oil in the transformer can flow into the containing cavity through the butt joint part. The transformer oil sampling device provided by the embodiment of the invention is high in oil sampling efficiency and can prevent oil from splashing outwards.

Description

Technical Field

[0001] The present invention relates to the technical field of transformer oil sampling, in particular to a transformer oil sampling device. Background Art

[0002] Transformer oil plays a vital role in the power system. It is not only used for insulation and cooling, but also plays a key role in the normal operation of equipment. However, after long-term use, transformer oil will age due to factors such as heat and moisture, lose its original performance, and affect the normal operation of equipment. In order to ensure the normal operation of the transformer and extend the service life of the equipment, regular sampling and testing of transformer oil is required.

[0003] In the related art, the oil outlet of the transformer oil is generally located at the lower end of the side wall of the transformer. When sampling the transformer oil, it is necessary to first remove the dust cover of the oil outlet, then place the sampling box under the oil outlet pipe, and then use a wrench to open the valve of the oil outlet. Since there is a lot of oil in the transformer, the oil pressure at the oil outlet is relatively high. At the moment the valve is opened, the oil is sprayed out in a jet-like shape, causing the oil spray to exceed the sampling box and spill onto the ground, causing ground pollution. If the oil pressure is too high, it will also splash on the operator. Summary of the Invention

[0004] The present invention aims to solve one of the technical problems in the related art at least to a certain extent. To this end, an embodiment of the present invention provides a transformer oil sampling device.

[0005] The transformer oil sampling device according to an embodiment of the present invention comprises:

[0006] fuel tank;

[0007] A lifting assembly, the lifting assembly being connected to the oil storage tank and capable of driving the oil storage tank to move in an up and down direction;

[0008] A sampling assembly, wherein the sampling assembly is arranged below the oil storage tank and is movable relative to the oil storage tank in a first direction, the first direction being orthogonal to the up-down direction, the sampling assembly is rotatable relative to the oil storage tank about the up-down direction, the sampling assembly includes a sampling head, the sampling head includes a main body, a movable frame and a docking portion, the main body has a accommodating cavity, the accommodating cavity is communicated with the oil storage tank, the docking portion is arranged at one end of the main body and is communicated with the accommodating cavity, the docking portion is used to connect to the oil outlet pipe of the transformer, at least a portion of the movable frame is located in the accommodating cavity and is movable relative to the main body, at least a portion of the movable frame can open or close the valve in the oil outlet pipe of the transformer through the docking portion, and the oil in the transformer can flow into the accommodating cavity through the docking portion.

[0009] The transformer oil sampling device of the embodiment of the present invention is connected to the oil outlet pipe of the transformer through a docking portion, and then the valve in the oil outlet pipe of the transformer is opened by a movable frame, so that the oil in the transformer flows into the accommodating chamber and then enters the oil storage tank from the accommodating chamber, so that the oil extraction process is isolated from the outside world, effectively avoiding the risk of oil splashing on the operator, improving the efficiency and safety of oil extraction, and reducing resource waste. In addition, the setting of the lifting component can drive the oil storage tank to move up and down, and then drive the sampling head to move up and down. The sampling head can move in a first direction relative to the oil storage tank. Through coordinated cooperation, the operator can conveniently and accurately dock the docking portion with the transformer oil outlet pipe, and the operation is simple and efficient.

[0010] In some embodiments, the docking portion includes a sampling tube and a docking sleeve, the sampling tube is connected to one end of the body and the docking sleeve, the sampling tube is communicated with the accommodating cavity, and the docking sleeve is detachably connected to the oil outlet pipe of the transformer, and / or,

[0011] The movable frame includes a movable rod, a penetrating rod, an adjusting portion, a handle and an elastic member. One end of the movable rod penetrates into the accommodating cavity from the other end of the main body and can move along its own extension direction relative to the main body. The penetrating rod is arranged in the movable rod and can rotate around the extension direction of the movable rod relative to the movable rod. One end of the penetrating rod extends from one end of the movable rod and is connected to the adjusting portion. The adjusting portion is used to open or close the valve in the oil outlet pipe of the transformer. The other end of the penetrating rod extends from the other end of the movable rod and is connected to the handle. The elastic member is arranged between the outer wall surface of the other end of the main body and the other end of the movable rod. When the other end of the movable rod moves toward the main body, the elastic member can be compressed.

[0012] In some embodiments, the sampling assembly further includes a rotating member, a mounting plate and a positioning member. The mounting plate is disposed below the oil storage tank and is movable in a first direction relative to the oil storage tank. One end of the positioning member is disposed on the top surface of the mounting plate, and the other end of the positioning member is connected to the sampling head. The positioning member can be extended and retracted in the up and down directions. The rotating member is disposed below the mounting plate and is used to drive the mounting plate to rotate relative to the oil storage tank about the up and down directions.

[0013] In some embodiments, there are at least two sampling heads, which are spaced apart along the circumference of the mounting plate. Each sampling head has different specifications and can correspond one-to-one to oil outlet pipes of different specifications of the transformer.

[0014] In some embodiments, the rotating member comprises:

[0015] a rotating shaft, the rotating shaft being arranged on the bottom surface of the mounting plate and extending along the up-down direction;

[0016] A worm wheel and a worm, wherein the worm wheel is provided on the rotating shaft, one end of the worm is engaged with the worm wheel, and the worm rotates about its own extension direction to drive the worm to rotate about the up-down direction, thereby driving the mounting plate to rotate about the up-down direction;

[0017] A fixed block, a connecting block and a rotating rod, wherein the fixed block is arranged on the bottom surface of the mounting plate, the other end of the worm passes through the fixed block and is connected to the connecting block, the worm is rotatable relative to the fixed block, the rotating rod is detachably connected to the connecting block, the connecting block can be driven to rotate by the rotating rod, and the connecting block can drive the worm to rotate.

[0018] In some embodiments, the transformer oil sampling device further includes a filter element, which is disposed in the oil storage cavity of the oil storage tank, and the oil in the accommodating cavity enters the oil storage cavity through the filter element.

[0019] In some embodiments, the transformer oil sampling device also includes a cleaning component, which includes a mounting frame, a screw, a slider, a scraper and a motor. The mounting frame is located in the oil storage chamber and is provided on the top surface of the oil storage chamber. The screw is provided on the mounting frame and extends along the second direction. The second direction, the first direction and the up and down directions are orthogonal to each other. The screw can rotate around the second direction relative to the mounting frame. The slider is provided on the screw and cooperates with the screw thread. The slider is connected to the scraper, and the scraper extends along the first direction. The motor is connected to the screw to drive the screw to rotate around the second direction, thereby driving the slider and the scraper to move along the second direction. The scraper is used to scrape impurities on the surface of the filter element.

[0020] In some embodiments, there are at least two lifting assemblies, and the at least two lifting assemblies are spaced apart and arranged opposite to each other. The oil storage tank is provided between the at least two lifting assemblies. The lifting assembly includes:

[0021] a first connecting plate and a second connecting plate, wherein the first connecting plate is arranged on the top surface of the oil storage tank, and the second connecting plate is arranged below the first connecting plate and opposite to the first connecting plate;

[0022] a telescopic rod, wherein the lower end of the telescopic rod is connected to the second connecting plate, and the upper end of the telescopic rod is connected to the first connecting plate;

[0023] A driving member, the lower end of which is connected to the second connecting plate, the upper end of which has a piston rod, the piston rod being connected to the first connecting plate, the piston rod being extendable and retractable in the up and down directions to drive the first connecting plate to move in the up and down directions.

[0024] In some embodiments, there are two telescopic rods, which are respectively provided at two ends of the second connecting plate, and the driving member is located between the two telescopic rods, and / or,

[0025] A positioning nail is provided on the second connecting plate, and the positioning nail can pass through the second connecting plate and abut against the ground.

[0026] In some embodiments, the transformer oil sampling device further comprises:

[0027] a wheel, the wheel being arranged on the bottom surface of the second connecting plate;

[0028] A storage box, which is provided on the bottom surface of the oil storage tank and is used for storing items;

[0029] a slide and a movable plate, wherein the slide is arranged on the bottom surface of the oil storage tank, the movable plate is arranged on the slide and is movable relative to the slide along the first direction, and the sampling assembly is arranged on the top surface of the movable plate;

[0030] A limiting member, the limiting member is provided on the slide, and the limiting member can limit the movable plate;

[0031] A cover plate is provided on one side of the oil storage tank and is used to seal the oil storage cavity of the oil storage tank. The cover plate is provided with an observation window for observing the oil in the oil storage cavity. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 Schematic diagram of a transformer oil sampling device according to an embodiment of the present invention.

[0033] Figure 2 Schematic diagram of a filter element of a transformer oil sampling device according to an embodiment of the present invention.

[0034] Figure 3 Schematic diagram of a cleaning component of a transformer oil sampling device according to an embodiment of the present invention.

[0035] Figure 4 Schematic diagram of a sampling head of a transformer oil sampling device according to an embodiment of the present invention.

[0036] Figure 5 yes Figure 1 Enlarged schematic diagram of part A.

[0037] Figure 6 yes Figure 1 Schematic diagram of the enlarged portion B.

[0038] Figure numerals: 1, oil storage tank; 11, oil storage chamber; 2, lifting assembly; 21, first connecting plate; 22, second connecting plate; 221, positioning pin; 23, telescopic rod; 24, driving member; 241, piston rod; 3, sampling assembly; 31, sampling head; 311, body; 3111, accommodating chamber; 3112, oil outlet; 3113, oil delivery pipe; 312, movable frame; 3121, movable rod; 3122, through rod; 3123, adjusting part; 3124, handle; 3125, elastic member; 313, docking part; 3131, sampling tube; 3132, docking sleeve; 32, rotating member; 321, rotating shaft; 322, worm gear; 323, worm; 324, fixing block; 325, connecting block; 3251, groove; 326, rotating rod; 327, rotating wheel; 33, mounting plate; 34, positioning piece; 341, positioning cylinder; 342, positioning column; 343, bolt; 41, delivery pump; 42, control component; 43, electrical box; 44, filter element; 441, limit frame; 442, filter screen; 5, cleaning component; 51, mounting frame; 52, screw; 53, slider; 54, scraper; 55, motor; 61, wheel; 62, storage box; 63, slide; 64, movable plate; 65, limit piece; 651, threaded rod; 652, operating panel; 66, cover; 661, observation window. DETAILED DESCRIPTION

[0039] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0040] like Figures 1-6 As shown, the transformer oil sampling device according to the embodiment of the present invention comprises an oil storage tank 1, a lifting assembly 2 and a sampling assembly 3. The lifting assembly 2 is connected to the oil storage tank 1 and can drive the oil storage tank 1 to move in the up and down directions. The sampling assembly 3 is arranged below the oil storage tank 1 and can move along a first direction relative to the oil storage tank 1. The first direction is orthogonal to the up and down direction. The sampling assembly 3 can rotate about the up and down direction relative to the oil storage tank 1. The sampling assembly 3 includes a sampling head 31. The sampling head 31 includes a main body 311, a movable frame 312 and a docking portion 313. The main body 311 has a accommodating cavity 3111, which is connected to the oil storage tank 1. The docking portion 313 is arranged at one end of the main body 311 and is connected to the accommodating cavity 3111. The docking portion 313 is used to connect to the oil outlet pipe of the transformer. At least a portion of the movable frame 312 is located in the accommodating cavity 3111 and is movable relative to the main body 311. At least a portion of the movable frame 312 can open or close the valve in the oil outlet pipe of the transformer through the docking portion 313, and the oil in the transformer can flow into the accommodating cavity 3111 through the docking portion 313.

[0041] The transformer oil sampling device of the embodiment of the present invention is connected to the oil outlet pipe of the transformer through the docking portion 313, and then the valve in the oil outlet pipe of the transformer is opened through the movable frame 312, so that the oil in the transformer flows into the accommodating chamber 3111, and then enters the oil storage tank 1 from the accommodating chamber 3111, so that the oil extraction process is isolated from the outside world, effectively avoiding the risk of oil splashing on the operator, improving the efficiency and safety of oil extraction, and reducing resource waste. In addition, the setting of the lifting component 2 can drive the oil storage tank 1 to move up and down, and then drive the sampling head 31 to move up and down. The sampling head 31 can move in a first direction relative to the oil storage tank 1. Through coordinated cooperation, the operator can easily and accurately dock the docking portion 313 with the transformer oil outlet pipe, and the operation is simple and efficient.

[0042] Specifically, the transformer oil sampling device further includes a delivery pump 41 , which is disposed on the side of the oil storage tank 1 and connects the oil storage cavity 11 of the oil storage tank 1 with the accommodating cavity 3111 to pump the oil in the accommodating cavity 3111 into the oil storage tank 1 .

[0043] Specifically, the transformer oil sampling device also includes a control component 42 and an electrical box 43, both of which are arranged on the top of the oil storage tank 1. The control component 42 is used to control the electrical appliances in the device, and the electrical box 43 is used to supply energy to the electrical appliances in the device.

[0044] In some embodiments, the docking portion 313 includes a sampling tube 3131 and a docking sleeve 3132. The sampling tube 3131 connects one end of the body 311 with the docking sleeve 3132. The sampling tube 3131 is communicated with the accommodating cavity 3111. The docking sleeve 3132 is detachably connected to the oil outlet pipe of the transformer.

[0045] Specifically, the inner circumference of the docking sleeve 3132 has an internal thread, and the docking sleeve 3132 and the oil outlet pipe of the transformer are usually threadedly connected, which is convenient for operation and can ensure that the docking sleeve 3132 and the oil outlet pipe of the transformer are firmly connected, ensuring that the oil in the transformer is completely isolated from the outside air during the sampling process.

[0046] In some embodiments, the movable frame 312 includes a movable rod 3121, a penetrating rod 3122, an adjusting portion 3123, a handle 3124 and an elastic member 3125. One end of the movable rod 3121 penetrates into the accommodating cavity 3111 from the other end of the main body 311 and can move along its own extension direction relative to the main body 311. The penetrating rod 3122 is penetrated in the movable rod 3121 and can rotate around the extension direction of the movable rod 3121 relative to the movable rod 3121. One end of the penetrating rod 3122 extends from one end of the movable rod 3121 and is connected to the adjusting portion 3123. The adjusting portion 3123 is used to open or close the valve in the oil outlet pipe of the transformer. The other end of the penetrating rod 3122 extends from the other end of the movable rod 3121 and is connected to the handle 3124. The elastic member 3125 is arranged between the outer wall surface of the other end of the main body 311 and the other end of the movable rod 3121. When the other end of the movable rod 3121 moves toward the main body 311, the elastic member 3125 can be compressed.

[0047] Specifically, the movable rod 3121 is sealed to the body 311, ensuring that the oil in the accommodating chamber 3111 does not easily overflow. The adjusting portion 3123 is a threaded sleeve. When the operator needs to sample the oil in the transformer, the operator connects the docking sleeve 3132 to the transformer's oil outlet pipe and pushes the movable rod 3121 toward the sampling pipe 3131, thereby driving the penetrating rod 3122 and the adjusting portion 3123 toward the docking sleeve 3132. At this time, the elastic member 3125 is compressed until the adjusting portion 3123 is sleeved on the surface of the opening and closing nut of the valve in the transformer's oil outlet pipe. The operator then rotates the handle 3124 to rotate the penetrating rod 3122, which in turn drives the adjusting portion 3123 and the opening and closing nut of the valve in the transformer's oil outlet pipe to rotate, thereby opening the transformer's oil outlet pipe, allowing the oil in the transformer to enter the accommodating chamber 3111 through the oil outlet pipe and the sampling pipe 3131.

[0048] Specifically, the elastic member 3125 is a compression spring, which has a simple structure and saves costs.

[0049] Specifically, the bottom surface of the main body 311 has an oil outlet 3112 connected to the accommodating chamber 3111, and the oil outlet 3112 is connected to the oil pipe 3113. The oil pipe 3113 is connected to the delivery pump 41 through a delivery hose (not shown) to deliver the oil in the accommodating chamber 3111 to the oil storage chamber 11.

[0050] In some embodiments, the sampling assembly 3 further includes a rotating member 32, a mounting plate 33 and a positioning member 34. The mounting plate 33 is disposed below the oil storage tank 1 and can move in a first direction relative to the oil storage tank 1. One end of the positioning member 34 is disposed on the top surface of the mounting plate 33, and the other end of the positioning member 34 is connected to the sampling head 31. The positioning member 34 can be extended and retracted in the up and down directions. The rotating member 32 is disposed below the mounting plate 33 and is used to drive the mounting plate 33 to rotate in the up and down directions relative to the oil storage tank 1.

[0051] Specifically, the positioning member 34 includes a positioning cylinder 341, a positioning post 342, and a bolt 343. The positioning cylinder 341 is located on the top surface of the mounting plate 33. The positioning post 342 extends from the top surface of the positioning cylinder 341 into the positioning cylinder 341 and is movable in the vertical direction relative to the positioning cylinder 341. The upper end of the positioning post 342 is connected to the sampling head 31 to drive the sampling head 31 in the vertical direction. The bolt 343 is located on the side wall of the positioning cylinder 341 and can extend into the positioning cylinder 341 to abut against the positioning post 342 to position the positioning post 342. This arrangement facilitates adjustment of the direction and position of the sampling head 31, thereby improving oil extraction efficiency.

[0052] In some embodiments, there are at least two sampling heads 31 , which are spaced apart along the circumference of the mounting plate 33 . Each sampling head 31 has different specifications and can correspond to oil outlet pipes of different specifications of the transformer.

[0053] Specifically, transformers of different models have different volumes, different diameters of their oil outlet pipes, and different models of opening and closing nuts of valves in their oil outlet pipes. Therefore, multiple sampling heads 31 are provided on the top surface of the mounting plate 33, and the models of the docking sleeves 3132 of each sampling head 31 and the models of the adjusting parts 3123 of each sampling head 31 are different, so as to correspond to the opening and closing nuts of valves in oil outlet pipes of different models. The operator can select the corresponding sampling head 31 according to the model of the transformer, thereby improving the oil extraction efficiency and the applicability of the transformer oil sampling device.

[0054] In some embodiments, the rotating member 32 includes a rotating shaft 321, a worm gear 322, a worm 323, a fixed block 324, a connecting block 325, and a rotating rod 326. The rotating shaft 321 is disposed on the bottom surface of the mounting plate 33 and extends in the vertical direction. The worm gear 322 is disposed on the rotating shaft 321. One end of the worm 323 engages with the worm gear 322. Rotation of the worm 323 about its own extension direction drives the worm 323 to rotate in the vertical direction, thereby driving the mounting plate 33 to rotate in the vertical direction. The fixed block 324 is disposed on the bottom surface of the mounting plate 33. The other end of the worm 323 passes through the fixed block 324 and is connected to the connecting block 325. The worm 323 is rotatable relative to the fixed block 324. The rotating rod 326 is detachably connected to the connecting block 325. The rotating rod 326 drives the connecting block 325 to rotate, and the connecting block 325 drives the worm 323 to rotate.

[0055] Specifically, the side of the connecting block 325 adjacent to the rotating rod 326 has a groove 3251. The inner periphery of the groove 3251 is polygonal, and the outer periphery of the rotating rod 326 is polygonal and matches the inner axial profile of the groove 3251. To rotate the mounting plate 33, one end of the rotating rod 326 is inserted into the groove 3251. The other end of the rotating rod 326 is provided with a rotating wheel 327. The rotating wheel 327 rotates the rotating rod 326, which in turn drives the connecting block 325 to rotate, thereby driving the worm 323, which in turn drives the worm wheel 322, thereby rotating the mounting plate 33. This makes operation convenient, and the rotating member 32 has a simple structure and a tight fit between its components. When the mounting plate 33 no longer needs to rotate, the rotating rod 326 can be removed from the groove 3251.

[0056] In some embodiments, the transformer oil sampling device further includes a filter 44 . The filter 44 is disposed in the oil storage cavity 11 of the oil storage tank 1 . The oil in the accommodating cavity 3111 enters the oil storage cavity 11 through the filter 44 .

[0057] Specifically, the filter element 44 includes a limit frame 441 and a filter screen 442. The limit frame 441 is arranged on the inner wall surface of the oil storage chamber 11, and the filter screen 442 is installed in the oil storage chamber 11 through the limit frame 441. The filter screen 442 is located at the upper end of the oil storage chamber 11. The delivery pump 41 can pump the oil in the accommodating chamber 3111 to the top of the filter screen 442 to filter the oil through the filter screen 442 to filter out impurities in the oil, so as to facilitate subsequent testing of the sampled oil.

[0058] In some embodiments, the transformer oil sampling device further includes a cleaning assembly 5. The cleaning assembly 5 includes a mounting frame 51, a screw 52, ​​a slider 53, a scraper 54, and a motor 55. The mounting frame 51 is located in the oil storage chamber 11 and is provided on the top surface of the oil storage chamber 11. The screw 52 is provided on the mounting frame 51 and extends along the second direction. The second direction, the first direction, and the up-down direction are orthogonal to each other. The screw 52 can rotate about the second direction relative to the mounting frame 51. The slider 53 is provided on the screw 52 and is threadedly engaged with the screw 52. The slider 53 is connected to the scraper 54, which extends along the first direction. The motor 55 is connected to the screw 52 to drive the screw 52 to rotate about the second direction, thereby driving the slider 53 and the scraper 54 to move along the second direction. The scraper 54 is used to scrape impurities on the surface of the filter element 44.

[0059] Specifically, the cleaning assembly 5 is positioned above the filter 442 to prevent the oil from coming into contact with the cleaning assembly 5 when it is pumped into the oil reservoir 11. The operator can use the motor 55 to drive the screw 52 to rotate in the second direction, thereby driving the slider 53 and the scraper 54 to move along the extension direction of the screw 52. The scraper 54 pushes impurities accumulated on the top of the filter 442 to both sides of the top of the filter 442, thereby preventing the filter 442 from becoming clogged.

[0060] In some embodiments, there are at least two lifting assemblies 2 , and the at least two lifting assemblies 2 are spaced apart and arranged opposite to each other, and the oil storage tank 1 is disposed between the at least two lifting assemblies 2 .

[0061] Specifically, there are two lifting assemblies 2 , which are spaced apart and arranged opposite to each other along the second direction, and the oil storage tank 1 is disposed between the two lifting assemblies 2 so that the oil storage tank 1 can remain stable when moving in the up and down directions.

[0062] In some embodiments, the lifting assembly 2 includes a first connecting plate 21, a second connecting plate 22, a telescopic rod 23, and a driving member 24. The first connecting plate 21 is disposed on the top surface of the oil tank 1, and the second connecting plate 22 is disposed below and opposite the first connecting plate 21. The lower end of the telescopic rod 23 is connected to the second connecting plate 22, and the upper end of the telescopic rod 23 is connected to the first connecting plate 21. The lower end of the driving member 24 is connected to the second connecting plate 22, and the upper end of the driving member 24 has a piston rod 241 connected to the first connecting plate 21. The piston rod 241 can be extended and retracted in the vertical direction to drive the first connecting plate 21 to move in the vertical direction.

[0063] In some embodiments, there are two telescopic rods 23 , which are respectively disposed at two ends of the second connecting plate 22 , and the driving member 24 is located between the two telescopic rods 23 .

[0064] Specifically, the provision of the two telescopic rods 23 strengthens the connection between the first connecting plate 21 and the second connecting plate 22, ensuring that the driving member 24 can remain stable when driving the first connecting plate 21 to move in the up and down directions.

[0065] The second connecting plate 22 is provided with a positioning pin 221 , which can pass through the second connecting plate 22 and abut against the ground.

[0066] Specifically, the positioning pin 221 is a screw, and the screw thread is engaged with the second connecting plate 22. When the position of the oil storage tank 1 is determined, the positioning pin 221 can be in contact with the ground to ensure the stability of the oil storage tank 1, and it is not easily moved by external forces, thereby ensuring the oil extraction efficiency.

[0067] In some embodiments, the transformer oil sampling device further includes wheels 61 , which are disposed on the bottom surface of the second connecting plate 22 to facilitate movement of the oil storage tank 1 and save manpower.

[0068] In some embodiments, the transformer oil sampling device further includes a storage box 62 disposed on the bottom surface of the oil storage tank 1 for storing items. Two storage boxes 62 are provided, spaced apart along the second direction on the bottom surface of the oil storage tank 1. When the mounting plate 33 is no longer required to rotate, the rotating rod 326 can be stored in the storage box 62 to prevent loss.

[0069] In some embodiments, the transformer oil sampling device also includes a slide 63, a movable plate 64 and a limit member 65. The slide 63 is arranged on the bottom surface of the oil storage tank 1, the movable plate 64 is arranged on the slide 63 and can move along a first direction relative to the slide 63, the sampling component 3 is arranged on the top surface of the movable plate 64, and the limit member 65 is arranged on the slide 63. The limit member 65 can limit the movable plate 64.

[0070] Specifically, the limiting member 65 includes a threaded rod 651 and an operating disk 652. One end of the threaded rod 651 can pass through the slide 63 and be threadedly engaged with the slide 63. The operating disk 652 is provided at the other end of the threaded rod 651. By rotating the operating disk 652, one end of the threaded rod 651 is moved toward the movable plate 64 so that one end of the threaded rod 651 abuts against the movable frame 312 to limit the movable plate 64 and lock the position of the movable plate 64.

[0071] In some embodiments, the transformer oil sampling device further includes a cover plate 66 , which is disposed on one side of the oil storage tank 1 and is used to seal the oil storage cavity 11 of the oil storage tank 1 . The cover plate 66 has an observation window 661 for observing the oil in the oil storage cavity 11 .

[0072] The working principle of the transformer oil sampling device according to the embodiment of the present invention is as follows:

[0073] The operator can move the movable plate 64 along the first direction to drive the sampling assembly 3 to move along the first direction, thereby adjusting the position of the sampling head 31 in the first direction. The operator can drive the worm 323 to rotate to drive the worm wheel 322 to rotate, and then drive the sampling head 31 to rotate, so as to adjust the orientation of the sampling tube 3131 and the docking sleeve 3132, so as to facilitate the threaded connection of the docking sleeve 3132 with the transformer oil outlet pipe. The operator can start the driving member 24 to extend or retract to drive the oil storage tank 1 to move in the up and down directions, and then indirectly drive the sampling head 31 to move in the up and down directions. Through the above-mentioned adjustment methods, the operator can easily dock the docking sleeve 3132 with the transformer oil outlet pipe, thereby improving the oil extraction efficiency, ensuring that the oil discharged from the transformer oil outlet pipe will not splash out, and saving resources.

[0074] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0075] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0076] In the present invention, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection, or communication; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0077] In the present invention, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediary. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0078] In the present invention, the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and the features of different embodiments or examples without contradiction.

[0079] Although the above embodiments have been shown and described, it is understood that the above embodiments are illustrative and are not to be construed as limitations on the present invention. Changes, modifications, substitutions and variations of the above embodiments by those skilled in the art are all within the scope of protection of the present invention.

Claims

1. A transformer oil sampling device, characterized in that: include: Oil storage tank (1); A lifting assembly (2), the lifting assembly (2) being connected to the oil storage tank (1), and the lifting assembly (2) being capable of driving the oil storage tank (1) to move in an up-down direction; A sampling assembly (3) is provided below the oil storage tank (1) and is movable relative to the oil storage tank (1) along a first direction, the first direction being orthogonal to the up-down direction, the sampling assembly (3) being rotatable relative to the oil storage tank (1) about the up-down direction, the sampling assembly (3) comprising a sampling head (31), the sampling head (31) comprising a body (311), a movable frame (312) and a docking portion (313), the body (311) having a receiving cavity (3111), the receiving cavity (3111) being connected to the oil storage tank ( 1) communication, the docking portion (313) is provided at one end of the body (311) and is in communication with the accommodating chamber (3111), the docking portion (313) is used to connect to the oil outlet pipe of the transformer, at least a portion of the movable frame (312) is located in the accommodating chamber (3111) and is movable relative to the body (311), at least a portion of the movable frame (312) can open or close the valve in the oil outlet pipe of the transformer through the docking portion (313), and the oil in the transformer can flow into the accommodating chamber (3111) through the docking portion (313).

2. The transformer oil sampling device according to claim 1, characterized in that: The docking portion (313) includes a sampling tube (3131) and a docking sleeve (3132), wherein the sampling tube (3131) connects one end of the body (311) and the docking sleeve (3132), the sampling tube (3131) is communicated with the accommodating cavity (3111), and the docking sleeve (3132) is detachably connected to the oil outlet pipe of the transformer, and / or, The movable frame (312) includes a movable rod (3121), a penetrating rod (3122), an adjusting portion (3123), a handle (3124) and an elastic member (3125). One end of the movable rod (3121) passes through the accommodating cavity (3111) from the other end of the body (311) and can move along its own extension direction relative to the body (311). The penetrating rod (3122) is inserted into the movable rod (3121) and can rotate around the extension direction of the movable rod (3121) relative to the movable rod (3121). One end of the penetrating rod (3122) passes through the accommodating cavity (3111) from the other end of the body (311). One end of the movable rod (3121) extends out and is connected to the adjusting portion (3123), and the adjusting portion (3123) is used to open or close the valve in the oil outlet pipe of the transformer. The other end of the penetrating rod (3122) extends out from the other end of the movable rod (3121) and is connected to the handle (3124). The elastic member (3125) is provided between the outer wall surface of the other end of the body (311) and the other end of the movable rod (3121). When the other end of the movable rod (3121) moves toward the body (311), the elastic member (3125) can be compressed.

3. The transformer oil sampling device according to claim 1, characterized in that: The sampling assembly (3) further comprises a rotating member (32), a mounting plate (33) and a positioning member (34); the mounting plate (33) is arranged below the oil storage tank (1) and is movable in a first direction relative to the oil storage tank (1); one end of the positioning member (34) is arranged on the top surface of the mounting plate (33); the other end of the positioning member (34) is connected to the sampling head (31); the positioning member (34) is retractable in the up-down direction; the rotating member (32) is arranged below the mounting plate (33) and is used to drive the mounting plate (33) to rotate relative to the oil storage tank (1) about the up-down direction.

4. The transformer oil sampling device according to claim 3, characterized in that: There are at least two sampling heads (31), which are spaced apart along the circumference of the mounting plate (33). Each sampling head (31) has different specifications and can correspond to oil outlet pipes of different specifications of the transformer.

5. The transformer oil sampling device according to claim 3, characterized in that: The rotating member (32) comprises: A rotating shaft (321), the rotating shaft (321) is provided on the bottom surface of the mounting plate (33) and extends along the up-down direction; A worm wheel (322) and a worm (323), wherein the worm wheel (322) is provided on the rotating shaft (321), one end of the worm (323) cooperates with the worm wheel (322), and the worm (323) rotates about its own extension direction to drive the worm (323) to rotate about the up-down direction, thereby driving the mounting plate (33) to rotate about the up-down direction; A fixing block (324), a connecting block (325) and a rotating rod (326), wherein the fixing block (324) is arranged on the bottom surface of the mounting plate (33), the other end of the worm (323) passes through the fixing block (324) and is connected to the connecting block (325), the worm (323) is rotatable relative to the fixing block (324), the rotating rod (326) is detachably connected to the connecting block (325), the connecting block (325) can be driven to rotate by the rotating rod (326), and the connecting block (325) can drive the worm (323) to rotate.

6. The transformer oil sampling device according to claim 1, characterized in that: It also includes a filter element (44), which is arranged in the oil storage cavity (11) of the oil storage tank (1), and the oil in the accommodating cavity (3111) enters the oil storage cavity (11) through the filter element (44).

7. The transformer oil sampling device according to claim 6, characterized in that: The cleaning assembly (5) further comprises a mounting frame (51), a screw (52), a slider (53), a scraper (54) and a motor (55). The mounting frame (51) is located in the oil storage chamber (11) and is arranged on the top surface of the oil storage chamber (11). The screw (52) is arranged on the mounting frame (51) and extends along a second direction. The second direction, the first direction and the up-down direction are orthogonal to each other. The screw (52) can rotate around the second direction relative to the mounting frame (51). The slider (53) is provided on the screw rod (52) and is threadably engaged with the screw rod (52). The slider (53) is connected to the scraper (54). The scraper (54) extends along the first direction. The motor (55) is connected to the screw rod (52) to drive the screw rod (52) to rotate about the second direction, thereby driving the slider (53) and the scraper (54) to move along the second direction. The scraper (54) is used to scrape impurities on the surface of the filter element (44).

8. The transformer oil sampling device according to claim 1, characterized in that: There are at least two lifting assemblies (2), at least two of which are spaced apart and arranged relative to each other, the oil storage tank (1) is arranged between the at least two lifting assemblies (2), and the lifting assembly (2) comprises: a first connecting plate (21) and a second connecting plate (22), wherein the first connecting plate (21) is arranged on the top surface of the oil storage tank (1), and the second connecting plate (22) is arranged below the first connecting plate (21) and opposite to the first connecting plate (21); a telescopic rod (23), wherein the lower end of the telescopic rod (23) is connected to the second connecting plate (22), and the upper end of the telescopic rod (23) is connected to the first connecting plate (21); A driving member (24), the lower end of which is connected to the second connecting plate (22), the upper end of which has a piston rod (241), the piston rod (241) being connected to the first connecting plate (21), the piston rod (241) being extendable in the up-down direction to drive the first connecting plate (21) to move in the up-down direction.

9. The transformer oil sampling device according to claim 8, characterized in that: There are two telescopic rods (23), the two telescopic rods (23) are respectively arranged at two ends of the second connecting plate (22), the driving member (24) is located between the two telescopic rods (23), and / or, The second connecting plate (22) is provided with a positioning nail (221), and the positioning nail (221) can pass through the second connecting plate (22) and abut against the ground.

10. The transformer oil sampling device according to claim 8, characterized in that: Also includes: A wheel (61), the wheel (61) being arranged on the bottom surface of the second connecting plate (22); A storage box (62), the storage box (62) is arranged on the bottom surface of the oil storage tank (1) and is used to store items; a slide (63) and a movable plate (64), wherein the slide (63) is arranged on the bottom surface of the oil storage tank (1), the movable plate (64) is arranged on the slide (63) and can move along the first direction relative to the slide (63), and the sampling assembly (3) is arranged on the top surface of the movable plate (64); A limiting member (65), the limiting member (65) being provided on the slide (63), and the limiting member (65) being capable of limiting the position of the movable plate (64); A cover plate (66) is provided on one side of the oil storage tank (1) and is used to seal the oil storage cavity (11) of the oil storage tank (1). The cover plate (66) is provided with an observation window (661) for observing the oil in the oil storage cavity (11).

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