CN114288736B

CN114288736B - Oil-immersed transformer fluid filter assembly

Info

Publication number: CN114288736B
Application number: CN202111657328.7A
Authority: CN
Inventors: 潘刚; 郁鹏飞; 董慧
Original assignee: Jiangsu Hengda Transformer Co ltd
Current assignee: Jiangsu Hengda Transformer Co ltd
Priority date: 2021-12-31
Filing date: 2021-12-31
Publication date: 2022-10-28
Anticipated expiration: 2041-12-31
Also published as: CN114288736A

Abstract

The invention relates to the technical field of transformers, in particular to an oil liquid filtering component of an oil immersed transformer, which comprises a transformer body, wherein a filtering mechanism is arranged on the transformer body, a control mechanism is arranged on the filtering mechanism, a locking mechanism is arranged on the filtering mechanism, a sliding mechanism is arranged on the filtering mechanism, a limiting mechanism is arranged on the sliding mechanism, and a resetting mechanism is arranged on the filtering mechanism; make the filtering mechanism installation firm through blocked mechanical system, the cooperation through filtering mechanism and control mechanism is convenient to take out the filtration to the inboard sediment debris in transformer body bottom, the purity of fluid has been ensured, reduce the loss to the transformer body, be favorable to making filtering mechanism can not cause the jam under the cooperation through sliding mechanism and stop gear, the convenience is to the better work of filtering of fluid, make things convenient for the resetting that sliding mechanism can be fine under the effect through canceling release mechanical system, and the clearance is scraped out to the convenient inside debris of filtering mechanism.

Description

Oil-immersed transformer fluid filter assembly

Technical Field

The invention relates to the technical field of transformers, in particular to an oil liquid filtering component of an oil immersed transformer.

Background

The transformer plays a role in transforming voltage in the power transmission process of a power grid, normal supply of power is guaranteed, and the transformer is cooled and insulated by injecting oil in the use process of the transformer, so that the transformer can work normally.

However, the conventional oil immersed transformer is inconvenient to filter the oil inside, so that the oil inside the transformer is gradually oxidized to generate various oxides, alcohol, aldehyde, acid and the like under the action of heat and an electric field, and finally colloid, oil sludge and impurities are formed, which can reduce the insulation performance of the transformer, and cause the load of the transformer to be increased, so that the transformer cannot normally work.

Disclosure of Invention

Aiming at the problems in the prior art, the invention provides an oil liquid filtering component of an oil immersed transformer.

The technical scheme adopted by the invention for solving the technical problem is as follows: the oil-immersed transformer oil liquid filtering component comprises a transformer body, wherein a filtering mechanism is installed on the transformer body, a control mechanism is installed on the filtering mechanism, a locking mechanism is installed on the filtering mechanism, a sliding mechanism is installed on the filtering mechanism, a limiting mechanism is installed on the sliding mechanism, and a resetting mechanism is installed on the filtering mechanism.

Specifically, filtering mechanism includes the set casing, the welding has the set casing on the transformer body, install two pipes, two on the set casing the pipe extends to inside the transformer body, the block is connected with the apron on the set casing, install two connecting blocks on the apron, connecting block and the inside sliding connection of set casing, two install the filter screen between the connecting block, the inside first guide slot that is equipped with of set casing, the pipe is connected with the filter screen through first guide slot, set casing one end internally mounted has the oil pump, oil pump and one of them pipe connection, the inside second guide slot that is equipped with of set casing, the oil pump passes through second guide slot and filter screen internal connection.

Specifically, the fixed shell internally mounted has the sealing washer, the apron is contradicted with the sealing washer, install the transparent plate on the apron.

Specifically, control mechanism includes the closing plate, set casing internally mounted has the closing plate, the closing plate passes through conflict spring and the inside sliding connection of set casing, the closing plate runs through and contradicts in first guide slot and connecting block, be equipped with logical groove on the closing plate, lead to groove and first guide slot intercommunication.

Specifically, blocked mechanical system includes the draw-in groove, the inside draw-in groove that is equipped with two symmetries of solid fixed shell lateral wall, the inside sliding connection in apron both ends has the bayonet lock of symmetry, bayonet lock one end extends to inside the draw-in groove, the ejector pad is installed to the bayonet lock other end, ejector pad and bayonet lock pass through reset spring and apron inside sliding connection, the ejector pad extends to the apron outside.

Specifically, install two bolts on the apron, bolt one end and apron threaded connection, two the bolt runs through and contradicts in apron and bayonet lock inside.

Specifically, slide mechanism includes the guide arm, filter screen internally mounted has the guide arm, guide arm both ends and connecting block fixed connection, sliding connection has the slide on the guide arm, the slide passes through guide arm and filter screen inside wall sliding connection, sliding connection has expanding spring on the guide arm, expanding spring one end is contradicted with the connecting block, the expanding spring other end is contradicted with the slide.

Specifically, stop gear includes the rack, install the rack on the guide arm, slide one end internally mounted has the fixture block, the fixture block is trapezium structure, the fixture block passes through compression spring and the inside sliding connection of slide, fixture block one end extends to the slide outside and contradicts with the rack.

Specifically, canceling release mechanical system includes the nut, one of them install the nut on the connecting block, the nut passes through the connecting rod and is connected with the inside rotation of connecting block, connecting rod one end extends to the guide arm inside and is connected with the helical rack, the helical rack rotates with the guide arm inboard to be connected.

Specifically, the nut lateral wall is equipped with the recess of two symmetries, connecting block internally mounted has the lug of two symmetries, the lug passes through extrusion spring and the inside sliding connection of connecting block, lug one end is hemispherical structure, two lug one end is contradicted with the recess is inside respectively.

The invention has the beneficial effects that:

(1) The oil filter component of the oil-immersed transformer is beneficial to pumping out and filtering the deposited impurities on the inner side of the bottom of the transformer body under the action of the filter mechanism, ensures the purity of oil, and reduces the loss of the transformer body, namely: installation through the apron, be favorable to inside inserting the set casing with the filter screen, through the work of oil pump, be favorable to taking the inboard fluid in transformer body bottom out and carry to inside the filter screen, make fluid filter leading-in first guide slot inside under the effect through the filter screen, and it is inboard to get into transformer body top through the pipe, be favorable to filtering the inboard fluid in transformer body bottom under the effect of circulating twitch, the purity of the inside fluid of transformer body has been ensured, simultaneously through taking out apron and filter screen convenience clear up debris, be favorable to making under the effect through the sealing washer that the leakproofness is better between apron and the set casing, can not cause fluid to spill over, be favorable to conveniently observing the filter screen internal state outside under the effect through the transparent plate, convenient follow-up dismantlement clearance work.

(2) The oil-immersed transformer oil liquid filtering component is beneficial to tight closing of the filtering mechanism and convenient subsequent cleaning under the action of the locking mechanism, and is beneficial to sealing and blocking the inside of the filtering mechanism during cleaning under the action of the control mechanism to prevent oil liquid from overflowing, namely: through the block of apron and set casing, the bayonet lock is spacing with the inside block of draw-in groove under the ejector pad effect of reset spring, make apron and set casing difficult separation, through promoting the ejector pad, make the ejector pad drive the bayonet lock break away from reset spring's effect down and the draw-in groove separation, the convenience is taken out apron and set casing separation, the convenience is taken out the filter screen clearance maintenance, rotation through the bolt, make bolt and the inboard conflict of bayonet lock, be favorable to the bayonet lock can not driven, the effect of protection between apron and the set casing has been played, make bolt and bayonet lock separation through the reverse rotation bolt, make things convenient for the bayonet lock to be by drive control, conflict to the closing plate through the connecting block, make the closing plate break away from and slide under the effect of conflict spring, be favorable to logical groove and first guide slot intercommunication on the closing plate, make fluid can circulate and filter, when the filter screen is taken out, connecting block and closing plate separation, the closing plate slides under the effect of conflict spring and resets, make the closing plate block up first guide slot, be favorable to making fluid can not spill over.

(3) According to the oil liquid filtering component of the oil immersed transformer, the oil liquid filtering component is beneficial to preventing the filtering mechanism from being blocked by matching the sliding mechanism and the limiting mechanism, and is convenient for better filtering oil liquid, namely: after oil enters the inside of the filter screen, the oil is filtered and discharged through the filter screen at the bottom of the sliding plate under the conflict of the sliding plate, after sundries on the filter screen at the bottom of the sliding plate are accumulated and blocked, the oil can conflict with the sliding plate, the sliding plate can slide on the guide rod for a certain distance under the action of the telescopic spring, the oil can continue to be filtered through the leaked filter screen, the phenomenon that the oil cannot be conveyed due to blocking cannot be caused, after the sliding plate slides to the top of the filter screen, the sliding plate can be cleaned and replaced by disassembling the filter screen, the oil can be filtered conveniently and subsequently, the clamping block can conflict with the helical rack under the action of the compression spring, the helical rack sharp teeth are opposite to the clamping block sharp teeth, the clamping block can only slide in one direction, the limiting effect is achieved after the sliding of the clamping block, the sliding plate can not slide downwards through the limiting of the clamping block and the helical rack after the sliding is facilitated, sundries can be prevented from sliding downwards, and the oil can be filtered better conveniently.

(4) According to the oil liquid filtering component of the oil immersed transformer, the sliding mechanism can be conveniently reset under the action of the resetting mechanism, and sundries in the filtering mechanism can be conveniently scraped out and cleaned, namely: after taking out to the set casing inside through connecting block and filter screen, rotate the screw cap through the spanner, make the nut drive the connecting rod rotate the rack to the bevel, make rack to the fixture block separation, the fixture block does not have the restrictive force after gliding under expanding spring's effect and resets, be favorable to scraping the debris of filter screen inside wall, and the convenience is to filter screen cleaning, be favorable to making lug and the inside conflict of recess under the effect of extrusion spring, make the nut be difficult for rotating, when the nut is driven through the spanner, recess on the nut can be contradicted the lug, because the lug is hemispherical structure, make the lug break away from the shrink under the effect of extrusion spring, make things convenient for the nut to rotate and control the rack to the bevel, after finishing when the clearance, through the reverse rotation nut, make the nut rotate after a definite position, lug and the inside conflict of recess, make the nut can be fine reset, be favorable to the rack to continue spacing to the fixture block conflict.

Drawings

The invention is further illustrated by the following examples in conjunction with the drawings.

Fig. 1 is a schematic overall structural diagram of an oil filter assembly of an oil immersed transformer according to a preferred embodiment of the present invention;

FIG. 2 is a schematic view of the connection structure of the fixing case, the cover plate and the filter net according to the present invention;

FIG. 3 is an enlarged view of the part A shown in FIG. 2;

FIG. 4 is an enlarged view of the part B shown in FIG. 2;

FIG. 5 is a schematic view of the connection structure of the filter screen, the guide rod and the slide plate according to the present invention;

FIG. 6 is an enlarged view of the structure of the portion C shown in FIG. 5;

FIG. 7 is a schematic view of the connection structure of the guide bar and the helical rack of the present invention;

fig. 8 is an enlarged view of the structure of the portion D shown in fig. 5.

In the figure: 1. a transformer body; 2. a filtering mechanism; 201. a stationary housing; 202. a cover plate; 203. a transparent plate; 204. connecting blocks; 205. a filter screen; 206. a conduit; 207. a first guide groove; 208. a second guide groove; 209. an oil pump; 210. a seal ring; 3. a control mechanism; 301. against the spring; 302. a sealing plate; 303. a through groove; 4. a locking mechanism; 401. a push block; 402. a return spring; 403. a bayonet lock; 404. a bolt; 405. a card slot; 5. a sliding mechanism; 501. a guide bar; 502. a tension spring; 503. a slide plate; 6. a limiting mechanism; 601. a clamping block; 602. a compression spring; 603. a helical rack; 7. a reset mechanism; 701. a nut; 702. a connecting rod; 703. a groove; 704. a bump; 705. compressing the spring.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.

As shown in fig. 1 to 8, the oil filter assembly of the oil-immersed transformer according to the present invention includes a transformer body 1, a filter mechanism 2 is installed on the transformer body 1, a control mechanism 3 is installed on the filter mechanism 2, a locking mechanism 4 is installed on the filter mechanism 2, a sliding mechanism 5 is installed on the filter mechanism 2, a limiting mechanism 6 is installed on the sliding mechanism 5, and a reset mechanism 7 is installed on the filter mechanism 2.

Concretely, filtering mechanism 2 is including fixed shell 201, the welding has fixed shell 201 on the transformer body 1, install two pipes 206 on fixed shell 201, two pipe 206 extends to inside the transformer body 1, the block is connected with apron 202 on the fixed shell 201, install two connecting blocks 204 on the apron 202, connecting block 204 and the inside sliding connection of fixed shell 201, two install filter screen 205 between the connecting block 204, the inside first guide slot 207 that is equipped with of fixed shell 201, pipe 206 is connected with filter screen 205 through first guide slot 207, fixed shell 201 one end internally mounted has oil pump 209, oil pump 209 is connected with one of them pipe 206, the inside second guide slot 208 that is equipped with of fixed shell 201, oil pump 209 passes through second guide slot 208 and filter screen 205 internal connection, through the installation of apron 202 is favorable to with the filter screen 205 inserts inside the fixed shell 201, through the work of oil pump 209, be favorable to with the inboard fluid in transformer body 1 bottom is taken out and is carried to inside filter screen 205, through make fluid filter leading-in under the effect of filter screen 205 first apron 207 is inside, and pass through the filter screen processing gets into transformer body 1's top is favorable to the transformer body top circulation fluid is inboard and is carried out debris through the filter screen 205, and the transformer body is inboard the clearance fluid is favorable to transformer body is carried out through the top is carried out the transformer body and the transformer body is inboard the clearance fluid and is carried out through the clearance fluid of transformer body is carried out the effect 1 simultaneously and is inboard the transformer body is convenient.

Specifically, fixed casing 201 internally mounted has sealing washer 210, apron 202 contradicts with sealing washer 210, install transparent plate 203 on the apron 202, through sealing washer 210's effect is favorable to making down apron 202 with the leakproofness is better between the fixed casing 201, can not cause fluid to spill over, through be favorable to making the convenience outside under the effect of transparent plate 203 filter screen 205 internal state is surveyd, makes things convenient for follow-up dismantlement cleaning work.

Specifically, the control mechanism 3 includes a sealing plate 302, a sealing plate 302 is installed inside the fixed casing 201, the sealing plate 302 is slidably connected to the inside of the fixed casing 201 through a contact spring 301, the sealing plate 302 is in contact with a first guide groove 207 and a connecting block 204 in a penetrating manner, a penetrating groove 303 is formed in the sealing plate 302 and is communicated with the first guide groove 207, the sealing plate 302 is in contact with the first guide groove 207 in a penetrating manner, so that the sealing plate 302 is free from sliding under the action of the contact spring 301 due to the contact of the connecting block 204, the penetrating groove 303 in the sealing plate 302 is in communication with the first guide groove 207, oil can be filtered in a penetrating manner, when the filter screen 205 is taken out, the connecting block 204 is separated from the sealing plate 302, the sealing plate 302 is in sliding reset under the action of the contact spring 301, the sealing plate 302 is blocked by the first guide groove 207, and oil is prevented from overflowing.

Specifically, the locking mechanism 4 includes a clamping groove 405, two symmetrical clamping grooves 405 are formed in the side wall of the fixing shell 201, two symmetrical clamping pins 403 are slidably connected to the inner portions of two ends of the cover plate 202, one end of each clamping pin 403 extends to the inner portion of the clamping groove 405, a pushing block 401 is installed at the other end of each clamping pin 403, the pushing block 401 and the clamping pins 403 are slidably connected to the inner portion of the cover plate 202 through a return spring 402, the pushing block 401 extends to the outer portion of the cover plate 202, the cover plate 202 and the fixing shell 201 are not easily separated through clamping of the cover plate 202 and the fixing shell 201, the pushing block 401 drives the clamping pins 403 to get rid of separation of the clamping grooves 405 under the action of the return spring 402 through pushing of the pushing block 401, separation and extraction of the cover plate 202 and the fixing shell 201 are facilitated, and the filter screen 205 is conveniently cleaned and maintained.

Specifically, install two bolts 404 on the apron 202, bolt 404 one end and apron 202 threaded connection, two bolt 404 runs through in apron 202 and the inside conflict of bayonet 403, through the rotation of bolt 404 makes bolt 404 with the inboard conflict of bayonet 403 is favorable to bayonet 403 can not driven, has played right apron 202 with the effect of protection between the set casing 201, through the antiport bolt 404 makes bolt 404 with bayonet 403 separates, and is convenient bayonet 403 can be drive control.

Specifically, slide mechanism 5 includes guide arm 501, filter screen 205 internally mounted has guide arm 501, guide arm 501 both ends and connecting block 204 fixed connection, sliding connection has slide 503 on the guide arm 501, slide 503 passes through guide arm 501 and filter screen 205 inside wall sliding connection, sliding connection has expanding spring 502 on the guide arm 501, expanding spring 502 one end is contradicted with connecting block 204, the expanding spring 502 other end is contradicted with slide 503, gets into through fluid filter screen 205 is inside back make fluid pass through under slide 503's the conflict the slide 503 at the bottom filter screen 205 filters and discharges, works as slide 503 bottom debris on the filter screen 205 are piled up and are blockked up the back, and fluid can be right slide 503 drive conflicts, makes slide 503 break away from under expanding spring 502's the effect certain distance of sliding on the guide arm 501, make fluid can continue to pass through spilling filter screen 205 filters, can not cause the unable phenomenon of carrying of fluid jam, works as slide 503 slides extremely behind filter screen 205 top, can rinse the change filter screen 205 through dismantling, make things convenient follow-up and continue to filter fluid.

Specifically, the limiting mechanism 6 includes an oblique rack 603, the guide rod 501 is provided with the oblique rack 603, one end of the sliding plate 503 is provided with a fixture block 601 inside, the fixture block 601 is of a trapezoid structure, the fixture block 601 is slidably connected with the inside of the sliding plate 503 through a compression spring 602, one end of the fixture block 601 extends to the outside of the sliding plate 503 to abut against the oblique rack 603, the fixture block 601 abuts against the oblique rack 603 under the action of the compression spring 602, and the sharp teeth of the oblique rack 603 are opposite to the sharp teeth of the fixture block 601, so that the fixture block 601 can only slide in one direction, and the fixture block 601 can perform a limiting function after sliding, which is beneficial to limiting and not sliding down through the fixture block 601 and the oblique rack 603 after sliding of the sliding plate 503, preventing the sliding plate 503 from causing backflow of downward sliding impurities, and facilitating better filtration of oil liquid.

Specifically, canceling release mechanical system 7 includes nut 701, one of them install nut 701 on the connecting block 204, nut 701 passes through connecting rod 702 and is connected with the inside rotation of connecting block 204, connecting rod 702 one end extends to the guide arm 501 inside and is connected with rack ramp 603, rack ramp 603 rotates with the guide arm 501 inboard and is connected, through connecting block 204 with filter screen 205 takes out extremely behind set casing 201 is inside, it is right through the spanner nut 701 rotates, makes nut 701 drives connecting rod 702 is right rack ramp 603 rotates, makes rack ramp 603 with fixture block 601 separation, fixture block 601 does not have behind the binding force slide down under expanding spring 502's the effect and reset, is favorable to right the debris of filter screen 205 inside wall are scraped out, and it is convenient right filter screen 205 washs.

Specifically, the nut 701 lateral wall is equipped with the recess 703 of two symmetries, connecting block 204 internally mounted has the lug 704 of two symmetries, lug 704 passes through extrusion spring 705 and the inside sliding connection of connecting block 204, lug 704 one end is the hemispherical structure, two lug 704 one end is contradicted with recess 703 inside respectively, through be favorable to making under extrusion spring 705's the effect lug 704 with the inside conflict of recess 703 makes nut 701 is difficult to rotate, and is right through the spanner during the nut 701 drive, on the nut 701 the recess 703 can be right lug 704 contradicts, because lug 704 is the hemispherical structure, makes lug 704 breaks away from shrink under extrusion spring 705's the effect, and is convenient nut 701 rotates right helical rack 603 control, through reverse rotation after the clearance finishes, makes nut 701 rotates a position, lug 704 with inside contradict in the recess 703, makes the reduction that nut 701 can be fine is favorable to helical rack 603 is to fixture 601 continues to contradict spacing.

When the invention is used, firstly, the fixed shell 201 is welded with the transformer body 1, the two guide pipes 206 are inserted into the transformer body 1, the filter screen 205 is inserted into the fixed shell 201 through the installation of the cover plate 202, the oil on the inner side of the bottom of the transformer body 1 is pumped out and conveyed into the filter screen 205 through the work of the oil pump 209, the oil is filtered and guided into the first guide groove 207 through the action of the filter screen 205 and enters the inner side of the top of the transformer body 1 through the guide pipes 206, the oil on the inner side of the bottom of the transformer body 1 is filtered through the action of the circulating pumping, the purity of the oil in the transformer body 1 is ensured, meanwhile, the sundries are conveniently cleaned through taking out the cover plate 202 and the filter screen 205, the sealing performance between the cover plate 202 and the fixed shell 201 is better through the action of the sealing ring 210, the oil liquid can not overflow, the observation of the internal state of the filter screen 205 from the outside can be facilitated under the action of the transparent plate 203, the subsequent disassembly and cleaning work can be facilitated, the clamping block 403 is clamped and limited with the inside of the clamping groove 405 under the action of the reset spring 402 through the clamping of the cover plate 202 and the fixed shell 201, the cover plate 202 and the fixed shell 201 can not be easily separated, the clamping block 401 is pushed to drive the clamping block 403 to separate from the clamping groove 405 under the action of the reset spring 402 through the pushing of the pushing block 401, the cover plate 202 and the fixed shell 201 can be conveniently separated and drawn out, the filter screen 205 can be conveniently cleaned and maintained, the bolt 404 is enabled to be abutted against the inner side of the clamping block 403 through the rotation of the bolt 404, the clamping block can be favorably not driven, the protection effect between the cover plate 202 and the fixed shell 201 can be achieved, the bolt 404 is enabled to be separated from the clamping block 403 through the reverse rotation of the bolt 404, and the clamping block 403 can be conveniently driven and controlled, through the collision of the connecting block 204 to the sealing plate 302, the sealing plate 302 is enabled to slide under the action of the collision spring 301, the communication between the through groove 303 on the sealing plate 302 and the first guide groove 207 is facilitated, oil can be filtered, when the filter screen 205 is drawn out, the connecting block 204 is separated from the sealing plate 302, the sealing plate 302 is enabled to slide and reset under the action of the collision spring 301, the sealing plate 302 is enabled to block the first guide groove 207, the oil can not overflow, after entering the filter screen 205 through the oil, the oil is filtered and discharged through the filter screen 205 at the bottom of the sliding plate 503 under the collision of the sliding plate 503, after sundries on the filter screen 205 at the bottom of the sliding plate 503 are accumulated and blocked, the oil can drive the sliding plate 503 to collide, the sliding plate 503 is enabled to slide on the guide rod 501 for a certain distance under the action of the expansion spring 502, the oil can continue to be filtered through the leaked filter screen 205, and the phenomenon that the oil cannot be conveyed can not occur, after the sliding plate 503 slides to the top of the filter screen 205, the filter screen 205 can be detached for cleaning and replacement, so that oil can be continuously filtered subsequently, the fixture block 601 is abutted to the helical rack 603 under the action of the compression spring 602, because the sharp teeth of the helical rack 603 are opposite to the sharp teeth of the fixture block 601, the fixture block 601 can only slide in one direction, and the fixture block 601 can play a role in limiting after sliding, so that the fixture block 601 can be limited by the fixture block 601 and the helical rack 603 without sliding after sliding, the sliding of the sliding plate 503 can be prevented from causing sundries backflow, and oil can be filtered conveniently, after the sliding plate is drawn out to the inside of the fixed shell 201 through the connecting block 204 and the filter screen 205, the nut 701 is rotated through the wrench, the connecting rod 702 is driven by the nut 701 to rotate the helical rack 603, the helical rack 603 is separated from the fixture block 601, the fixture block 601 slides downwards to reset under the action of the extension spring 502 without constraint force, be favorable to scraping the debris of filter screen 205 inside wall, and the convenience is washd filter screen 205, be favorable to making inside conflict of lug 704 and recess 703 under the effect through extrusion spring 705, make nut 701 be difficult for rotating, when driving nut 701 through the spanner, recess 703 on the nut 701 can conflict to lug 704, because lug 704 is hemispherical structure, make lug 704 break away from the shrink under extrusion spring 705's the effect, make things convenient for nut 701 to rotate and control oblique rack 603, after the clearance finishes, through reverse rotation nut 701, make nut 701 rotate a position after, lug 704 and the inside conflict of recess 703, make the restoration that nut 701 can be fine, be favorable to oblique rack 603 to conflict continuation spacing to block 601.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. An oil-immersed transformer oil liquid filtering component is characterized by comprising a transformer body (1), wherein a filtering mechanism (2) is installed on the transformer body (1), a control mechanism (3) is installed on the filtering mechanism (2), a locking mechanism (4) is installed on the filtering mechanism (2), a sliding mechanism (5) is installed on the filtering mechanism (2), a limiting mechanism (6) is installed on the sliding mechanism (5), and a resetting mechanism (7) is installed on the filtering mechanism (2);

the filtering mechanism (2) comprises a fixed shell (201), the fixed shell (201) is welded on the transformer body (1), two guide pipes (206) are installed on the fixed shell (201), the two guide pipes (206) extend to the interior of the transformer body (1), a filter screen (205) is installed inside the fixed shell (201), a first guide groove (207) is formed inside the fixed shell (201), the guide pipes (206) are connected with the filter screen (205) through the first guide groove (207), an oil pump (209) is installed inside one end of the fixed shell (201), the oil pump (209) is connected with one of the guide pipes (206), a second guide groove (208) is formed inside the fixed shell (201), and the oil pump (209) is connected with the interior of the filter screen (205) through the second guide groove (208);

the sliding mechanism (5) comprises a guide rod (501), the guide rod (501) is installed inside the filter screen (205), two ends of the guide rod (501) are fixedly connected with the connecting block (204), the guide rod (501) is connected with a sliding plate (503) in a sliding mode, the sliding plate (503) is connected with the inner side wall of the filter screen (205) in a sliding mode through the guide rod (501), the guide rod (501) is connected with an expansion spring (502) in a sliding mode, one end of the expansion spring (502) is abutted to the connecting block (204), and the other end of the expansion spring (502) is abutted to the sliding plate (503);

the limiting mechanism (6) comprises an oblique rack (603), the oblique rack (603) is mounted on the guide rod (501), a clamping block (601) is mounted inside one end of the sliding plate (503), the clamping block (601) is of a trapezoidal structure, the clamping block (601) is connected with the inside of the sliding plate (503) in a sliding mode through a compression spring (602), and one end of the clamping block (601) extends to the outer side of the sliding plate (503) and is abutted against the oblique rack (603);

the reset mechanism (7) comprises screw caps (701), one of the connecting blocks (204) is provided with the screw cap (701), the screw cap (701) is rotatably connected with the inside of the connecting block (204) through a connecting rod (702), one end of the connecting rod (702) extends to the inside of the guide rod (501) to be connected with a helical rack (603), and the helical rack (603) is rotatably connected with the inner side of the guide rod (501);

the nut (701) lateral wall is equipped with two symmetrical recess (703), connecting block (204) internally mounted has two symmetrical lugs (704), lug (704) are through extrusion spring (705) and the inside sliding connection of connecting block (204), lug (704) one end is the hemisphere structure, two lug (704) one end is contradicted with recess (703) inside respectively.

2. The oil filter assembly of claim 1, wherein: the clamping connection is connected with apron (202) on set casing (201), install two connecting blocks (204) on apron (202), connecting block (204) and the inside sliding connection of set casing (201), filter screen (205) both ends are connected with two connecting blocks (204).

3. The oil filter assembly of claim 2, wherein: fixed shell (201) internally mounted has sealing washer (210), apron (202) are contradicted with sealing washer (210), install transparent plate (203) on apron (202).

4. The oil filter assembly of claim 2, wherein: control mechanism (3) include closing plate (302), set casing (201) internally mounted has closing plate (302), closing plate (302) are through contradicting spring (301) and set casing (201) inside sliding connection, closing plate (302) run through and contradict in first guide slot (207) and connecting block (204), be equipped with logical groove (303) on closing plate (302), lead to groove (303) and first guide slot (207) intercommunication.

5. The oil filter assembly of claim 2, wherein: blocked structure (4) are including draw-in groove (405), draw-in groove (405) of two symmetries are equipped with to set casing (201) lateral wall inside, the inside sliding connection in apron (202) both ends has bayonet lock (403) of symmetry, bayonet lock (403) one end extends to inside draw-in groove (405), ejector pad (401) are installed to bayonet lock (403) other end, ejector pad (401) and bayonet lock (403) are through reset spring (402) and the inside sliding connection of apron (202), ejector pad (401) extend to apron (202) outside.

6. The oil filter assembly of claim 5, wherein: two bolts (404) are installed on the cover plate (202), one end of each bolt (404) is in threaded connection with the cover plate (202), and the two bolts (404) penetrate through the cover plate (202) and are abutted to the inner portion of the clamping pin (403).