CN110148896A - A kind of MNS type low-voltage distribution cabinet - Google Patents

A kind of MNS type low-voltage distribution cabinet Download PDF

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Publication number
CN110148896A
CN110148896A CN201910548351.9A CN201910548351A CN110148896A CN 110148896 A CN110148896 A CN 110148896A CN 201910548351 A CN201910548351 A CN 201910548351A CN 110148896 A CN110148896 A CN 110148896A
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CN
China
Prior art keywords
gear
shell
sleeve
shaft
round roller
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Granted
Application number
CN201910548351.9A
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Chinese (zh)
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CN110148896B (en
Inventor
史运周
张素平
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Star Kai Electric Co Ltd
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Star Kai Electric Co Ltd
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Priority to CN201910548351.9A priority Critical patent/CN110148896B/en
Publication of CN110148896A publication Critical patent/CN110148896A/en
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    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02BBOARDS, SUBSTATIONS, OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B1/00Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
    • H02B1/26Casings; Parts thereof or accessories therefor
    • H02B1/28Casings; Parts thereof or accessories therefor dustproof, splashproof, drip-proof, waterproof or flameproof
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02BBOARDS, SUBSTATIONS, OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B1/00Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
    • H02B1/26Casings; Parts thereof or accessories therefor
    • H02B1/30Cabinet-type casings; Parts thereof or accessories therefor
    • H02B1/306Accessories, e.g. windows

Abstract

The present invention provides a kind of MNS type low-voltage distribution cabinet, the existing power distribution cabinet strainer of effective solution is not easy to clear up, and dust is easy elegant, and cleaning is not thorough, and maintenance workload is big, the inefficiency of cleaning, the high problem of maintenance cost;Its technical solution solved is, including main body, has heat release hole in main body, has cover board in main body, there is through-hole on cover board top;There is ventilation opening in main body wall, there is strainer in ventilation opening, there are rack gear in ventilation opening two sides, there is shell on the outside of ventilation opening, there is the first round roller in shell, there is first gear in first round roller, has second gear between first gear and housing sidewall, have the second round roller on the right side of the first round roller, there is third gear in second round roller, there is planetary gear mechanism on shell, there are the gear teeth on gear ring, have shaft in shell, there is column in shaft lower end, there is a first sleeve in shaft lower end, and there is a second sleeve in shaft lower end, has multiple flabellums on the periphery of first sleeve and second sleeve;It is connected between column through pipeline in housing chamber.

Description

A kind of MNS type low-voltage distribution cabinet
Technical field
The present invention relates to power distribution cabinet technical field, especially a kind of MNS type low-voltage distribution cabinet.
Background technique
MNS type power distribution cabinet, MNS low-voltage drawer-type power distribution cabinet, original introduce the MNS cabinet of ABB AB, Switzerland, for many years by China It assimilates, the more important control cabinet series having gradually developed is widely used in power distribution station, factory, industrial and mining enterprises, nuclear power It stands, building distribution.
The numerous places of big and equipment in electricity consumption are divided by function power such as integrated mill, the place of large-scale power station Power distribution cabinet, light distribution cabinet, metering cabinet etc. are controlled for convenience and are focused on, and often multiple power distribution cabinets are arranged one It rises, in some instances it may even be possible to build special workshop for it.MNS type power distribution cabinet needs to keep divulging information with extraneous in use, ventilation Equipment is in its use process, and the strainer of air-introduced machine (pressure fan) inlet very volume accumulates dust, for a long time using easily leading to Drafting efficiency reduces, and indoor long-time deficiency in draught easily causes high temperature, causes equipment fault, and causes air dirty.
So power distribution cabinet needs periodic cleaning inside and outside in use, outside cleaning cabinet body side wall and thereon Strainer, in existing technology, the ventilation opening on cabinet body is using irony strainer, and there are two types of methods for cleaning, first, using brush Or rag back and forth wipes, by strainer dust and floccule clear up, the second is dust stratification and sundries are blown away with high pressure air rifle, But two methods can all have fugitive dust in implementation process, and fugitive dust can be diffused into ambient enviroment or escape into the electricity in power distribution cabinet On device element, health effect also is caused to cleanup crew.
The strainer that one layer of nylon fiber synthetic resin is clamped among two shutters is used at some ventilation equipment, It needs one by one to remove the screw on the shutter in outside when clearing up strainer, remove outside shutter and replaces intermediate interlayer Then strainer is again installed the shutter of outer layer, need to screw screw repeatedly, replacement efficiency is lower, and is screwing repeatedly In the process, some screws can fail, and just need to punch installation again at this time, be more troublesome.
In terms of strainer cleaning, some use brush cooperation dust catcher progress deashings, such as application No. is 201410803451.9 patent document, using cleaning brush to carry out ash disposal, then fixed dust catcher carries out absorbing ash below again The rotation direction of dirt, cleaning brush and gear in the program is consistent, and cleaning brush cleaning is not thorough, and also has remaining dust, Repeated multiple times carry out repetitive operation is needed, efficiency is lower, ineffective;And its dust catcher is to be fixed on lower section, Bu Nengji When fugitive dust is collected, dust very likely can be elegant everywhere.
To sum up, existing strainer is not easy to clear up in ventilation use process, and dust cleaning is not thorough, maintenance workload Greatly, cleaning efficiency is low, cannot collect in time dust and cause fugitive dust, have an adverse effect to other equipment, cause the dimension of strainer It is high to protect cost.
Summary of the invention
For above situation, for the defect for overcoming the prior art, the present invention provides a kind of MNS type low-voltage distribution cabinets, have The existing power distribution cabinet strainer that solves of effect is not easy to clear up in scale removal process, and dust is easy elegant, and cleaning is not thorough, maintenance Heavy workload, the inefficiency of cleaning, the high problem of maintenance cost.
Its technical solution solved is, including power distribution cabinet main body, has multiple heat release holes, main body epipleural on main body epipleural On be fixed with the hemispherical cover board that Open Side Down, cover board outer rim is fixed together with the sealing of switchgear epipleural, and cover board top is opened There is through-hole;It is provided with horizontal ventilation opening in the main body wall, is fixed with strainer in ventilation opening, above and below the ventilation opening Two sides are respectively and fixedly provided with a horizontal rack gear, and having on the outside of ventilation opening can be after the rectangular housing that ventilation opening moves left and right, shell End is openning shape, has the first round roller that is vertical and being able to rotate in shell, the first round roller both ends run through housing sidewall and are placed in shell External side, be fixed in the first round roller with the one-to-one first gear of rack gear, have between first gear and housing sidewall and the The coaxial second gear of one round roller has the second round roller in parallel on the right side of the first round roller, has in the second round roller and second gear It corresponds and intermeshing third gear, second gear can drive third gear to rotate, the first round roller and the second round roller There is hard fibre on periphery, planetary gear mechanism is installed on the upside of shell right end, wherein has on gear ring periphery and rack gear The gear teeth of engagement, in a ring, planet carrier rotates planet carrier with third gear, there is the shaft being able to rotate in shell, shaft upper end with Sun gear is fixed, and shaft lower end is through housing sidewall and is placed on the downside of shell, and shaft lower end is set with coaxial column, is erected Cylinder upper end is fixed with shell, and shaft lower end is set with first sleeve, and shaft can drive first sleeve to one-directionally rotate, end cap under shaft Equipped with second sleeve, second sleeve is placed in first sleeve lower end, and shaft can drive second sleeve to one-directionally rotate, first sleeve and the Multiple flabellums are respectively and fixedly provided on the periphery of two sleeves;It is connected between column through pipeline in housing chamber, fan blade rotating kinetic energy is by shell Endoceliac fugitive dust is pumped out through column.
Structure of the invention is ingenious, can effectively by power distribution cabinet strainer dust and sundries clear up, facilitate operation, Fugitive dust is avoided, prevents dust elegant, can be in time by dust and refuse collecting, the maintenance of Convenient switch cabinet reduces the amount of labour, significantly Cleaning efficiency is improved, it is adaptable, it is easy to spread.
Detailed description of the invention
Fig. 1 is main view of the invention.
Fig. 2 is side view cutaway drawing of the invention.
Fig. 3 is the front sectional view of core institution of the present invention.
Fig. 4 is A-A cross-sectional view in Fig. 3.
Fig. 5 is B-B cross-sectional view in Fig. 3.
Fig. 6 is core institution schematic three dimensional views one of the present invention.
Fig. 7 is core institution schematic three dimensional views two of the present invention.
Fig. 8 is core institution schematic three dimensional views three of the present invention.
Fig. 9 is the state diagram when present invention uses.
Specific embodiment
Further description is made to a specific embodiment of the invention below in conjunction with attached drawing.
It is provided by Fig. 1 to Fig. 9, the present invention includes power distribution cabinet main body 1, there is multiple heat release holes, main body 1 on 1 epipleural of main body The hemispherical cover board 2 that Open Side Down is fixed on epipleural, 2 outer rim of cover board is fixed together with the sealing of switchgear epipleural, covers 2 top of plate is provided with through-hole;It is provided with horizontal ventilation opening on 1 side wall of main body, strainer is fixed in ventilation opening, it is described Two sides are respectively and fixedly provided with a horizontal rack gear 3 to ventilation opening up and down, and having on the outside of ventilation opening can be along the rectangle that ventilation opening moves left and right Shell 4,4 rear end of shell are openning shape, have the first round roller 5 that is vertical and being able to rotate in shell 4,5 both ends of the first round roller are run through 4 side wall of shell and it is placed in the outside of shell 4, is fixed with and the one-to-one first gear 6 of rack gear 3, first gear in the first round roller 5 There is the second gear 7 coaxial with the first round roller 5 between 6 and 4 side wall of shell, there is the second circle in parallel on the right side of the first round roller 5 Roller 8 has in second round roller 8 and corresponds with second gear 7 and intermeshing third gear 9, second gear 7 can drive third Gear 9 rotates, and has hard fibre on the periphery of the first round roller 5 and the second round roller 8, is equipped with planet on the upside of 4 right end of shell Gear mechanism wherein has the gear teeth engaged with rack gear 3 on 10 periphery of gear ring, in a ring, planet carrier 11 is with third for planet carrier 11 Gear 9 rotates, and has the shaft 14 being able to rotate in shell 4,14 upper end of shaft and sun gear 12 are fixed, and shell is run through in 14 lower end of shaft 4 side walls and it being placed in the downside of shell 4,14 lower end of shaft is set with coaxial column 13, and 13 upper end of column and shell 4 are fixed, 14 lower end of shaft is set with first sleeve 15, and shaft 14 can drive first sleeve 15 to one-directionally rotate, and 14 lower end of shaft is set with the Two sleeves 16, second sleeve 16 are placed in 15 lower end of first sleeve, and shaft 14 can drive second sleeve 16 to one-directionally rotate, first sleeve 15 be respectively and fixedly provided with multiple flabellums on the periphery of second sleeve 16;Shell 4 is intracavitary to be connected between column 13 through pipeline, flabellum The intracavitary fugitive dust of shell 4 can be pumped out by rotation through column 13.
In order to collect fugitive dust in time, 13 lower end of column is set with movable cylinder 17, movable cylinder 17 and column 13 through being threadedly coupled, and there is the cloth bag 18 of multiple opening upwards in movable 17 lower end of cylinder, and the material of cloth bag 18 is synthetic fibers, natural fibre The cloth or felt that dimension or glass fibre are made into.
Fugitive dust or sundries are accumulated in the first round roller 5 and the second round roller 8 in order to prevent, also for realize planet carrier 11 with Third gear 9 rotates, and realize simultaneously planet carrier 11 and gear ring 10 rotation direction on the contrary, the second gear 7 diameter Greater than the diameter of third gear 9, the fiber on the first round roller 5 side close to each other with the second round roller 8 contacts with each other;Described There is interval between third gear 9 and planet carrier 11, there is transmission gear 19 in interval, the central axis of transmission gear 19 is fixed on shell On 4 side walls, transmission gear 19 can rotate on center shaft.
It is described in order to which when realizing that shell 4 moves back and forth in the horizontal direction subnormal ambient intracavitary to shell 4 can be caused One-way clutch is installed between first sleeve 15 and shaft 14, when shell 4 is moved to the left, shaft 14 rotates forward and can drive the The rotation of one sleeve 15, and second sleeve 16 does not follow shaft 14 to rotate;One-way clutch is installed between second sleeve 16 and shaft 14 Device, when shell 4 moves right, shaft 14 can drive second sleeve 16 to rotate, and first sleeve 15 does not follow shaft 14 to rotate.
The fugitive dust in shell 4 can be collected as early as possible to realize, the fan in the first sleeve 15 and second sleeve 16 For leaf at upper and lower multilayer, every layer of multiple flabellums are circumferentially uniformly distributed.
Gear ring 10 falls off in order to prevent, has plectane 20 on the side of the gear ring 10 far from shell 4, has on sun gear 12 Coaxial connecting shaft, connecting shaft is through plectane 20 and is placed in 20 outside of plectane, and connecting shaft is placed in the one end in 20 outside of plectane On have annular protrusion, annular protrusion is not departed from plectane 20.
In order to preferably collect dust, multiple vertical through slots, each through slot front side are provided on 4 front side board of shell Be fixed with a collection box 21, collection box 21 it is intracavitary with shell 4 is intracavitary is connected to, 21 lower end of collection box connects with column 13 through pipeline It is logical.
In order to replace strainer, the rectangular cylinder 22 being adapted to it is placed in the ventilation opening, 22 one end of rectangular cylinder is placed in On the outside of main body 1, there are annular protrusion, annular protrusion and main body 1 through more on the outer edge surface of one end that rectangular cylinder 22 is placed in outside 1 chamber of main body A screw is fixed, and there is raised item in one end in rectangular cylinder 22 far from main body 1, is had on one end of main body 1 in rectangular cylinder 22 more A blind hole is placed with multiple wedge blocks 23 that can be moved in blind hole in blind hole, is connected between wedge block 23 and blind via bottom Pressure spring has interval between wedge block 23 and raised item, interior placement strainer is spaced, between strainer can be entered by the side of wedge block 23 Every interior.
Extraction fan is installed on the inside of the ventilation opening.
It is worth noting that, connecting between 4 back side panel of column 13 and shell through pipeline, pipeline is metal hose material, pipe The junction of road and column 13 is in above flabellum, realizes that fan blade rotating kinetic energy collects rapidly the fugitive dust in shell 4 into cloth with this Bag 18, filters fugitive dust under the action of cloth bag 18, so that clean air discharge;In order to increase the effect of flabellum pump air Rate, column 13 can increase diameter in the case where not interfering other components to operate normally, enhance flabellum with this and pump fugitive dust Efficiency;The material of cloth bag 18 is exactly the cloth or felt that synthetic fibers, natural fiber or glass fibre are made into, and fugitive dust is through cloth bag 18 When, dust and sundries are left, and clean air is discharged out of cloth bag 18;One-way clutch in the present invention is in idle running, no Influence circulation of the air-flow in column 13;When strainer is rotten or damage, it is necessary to replace strainer, remove rectangular cylinder at this time 22, and wedge block 23 is pressed into its corresponding blind hole, it takes out with regard to old strainer, new strainer is stably placed at multiple wedge blocks It being pressed on 23 and into interval, new strainer can oppress wedge block 23 and move into blind hole, when in strainer arrival interval, wedge block 23 under the action of pressure spring by new screen card in interval, finally by rectangular cylinder 22 by original state install on the body 1, replaced At.
In use, movable cylinder 17 is first screwed in 13 lower end of column, then the present apparatus is buckled on the ventilation opening of power distribution cabinet, And the rack gear 3 for making first gear 6 corresponding engages, and the gear teeth on 10 outside of gear ring are engaged with the rack gear 3 in top, Move left and right shell 4 in the horizontal direction at this time, shell 4 rolls on rack gear 3 with first gear 6, and first gear 6 rolls band Dynamic first round roller 5 rotates, and the hard fibre in the first round roller 5 clears up strainer, while second gear 7 drives third gear 9 rotations, third gear 9 drive the rotation of the second round roller 8, and the hard fibre in the second round roller 8 clears up strainer, meeting when cleaning Generate fugitive dust;At the same time, third gear 9 through transmission gear 19 drive planet carrier 11 rotate, shell 4 move left and right and meanwhile band Movable tooth circle 10 rolls on rack gear 3, and two strands of power are inputted from planet carrier 11 and gear ring 10 respectively, defeated from sun gear 12 after synthesis Out, enough revolving speeds are provided for shaft 14, the rotation of shaft 14 can drive first sleeve 15 or second sleeve 16 to rotate, by shell The fugitive dust of generation in 4 is pumped in cloth bag 18 downwards together with air.
In above process, when shell 4 is moved to the left, shaft 14 is rotated forward, and shaft 14 can drive first through one-way clutch Sleeve 15 rotates, and the fugitive dust in shell 4 can be pumped out by the flabellum in first sleeve 15 through piping, and shaft 14 at this time is not Second sleeve 16 can be driven to rotate;When shell 4 moves right, shaft 14 is inverted, and shaft 14 can drive second through one-way clutch Sleeve 16 rotates, and the fugitive dust in shell 4 can be pumped out by the flabellum in second sleeve 16 through piping, and shaft 14 at this time is not First sleeve 15 can be driven to rotate, realize in 4 reciprocatory movement of shell, the subnormal ambient in shell 4 can be caused, so that Fugitive dust and impurity can be collected into the cloth bag 18 of movable 17 lower end of cylinder.
Outstanding advantages and marked improvement of the invention:
1. in the present invention the first round roller 5 and the second round roller 8 rotation enable hard fibre on strainer dust and sundries carry out Cleaning, and the subnormal ambient for causing shell 4 intracavitary by the rotation of flabellum, effect of the fugitive dust generated in scale removal process in flabellum Lower concentrated through pipeline is pumped in column 13, then is fed down into cloth bag 18 by column 13, and cloth bag 18 has filtering function, cloth Bag 18 leaves dust and impurity, and clean air is discharged, and avoids fugitive dust as far as possible, effectively prevents dust from escaping, Reduce dust and sundries enters in cabinet body.
2. the diameter of second gear 7 is greater than the diameter of third gear 9 in the present invention, second gear 7 drives 9 turns of third gear It is dynamic, so that there are rotational speed differences between the first round roller 5 and the second round roller 8, the first round roller 5 and the second round roller 8 are realized using rotational speed difference Mutual cleaning, avoid dust and sundries from accumulating on hard fibre.
3. first sleeve 15, second sleeve 16 in the present invention and being mounted on one-way clutch between shaft 14, realize No matter shaft 14 rotates forward or inverts the subnormal ambient that shell 4 can be caused intracavitary, realizes dust in scale removal process and miscellaneous Matter is collected.
4. utilizing epicyclical gear train mechanism in the present invention, two strands of power are inputted from planet carrier 11 and outer gear ring 10 respectively, are closed Cheng Houcong sun gear 12 exports, and guarantees that shaft 14 has enough revolving speeds, and flabellum divides multilayer, every layer of multiple flabellum, so that In short period can by shell 4 fugitive dust and sundries quickly collect, avoid elegant, sanitation and hygiene, it is high-efficient.
5. the present invention can in the case where not dismantling strainer, by strainer fugitive dust and sundries clear up, and only need to be Two sides increase by two rack gears 3 to the strainer of existing power distribution cabinet up and down, and remaining components can completely disengage power distribution cabinet, And multiple power distribution cabinets or many places strainer are mutually general, easy to carry, only need to according to circumstances to cloth bag 18 carry out replacement or Cleaning facilitates management.
6. the present invention can effectively prevent fugitive dust, be both avoided that dust enters in power distribution cabinet relative to traditional manner of cleaning up The dust stratification on electrical component is caused, the health of operator can also be effectively protected, also significantly reduce operator's The amount of labour also facilitates centralization to handle.
To sum up, structure of the invention is ingenious, can effectively by power distribution cabinet strainer dust and sundries clear up, it is convenient Operation, avoids fugitive dust, prevents dust elegant, can be in time by dust and refuse collecting, and the maintenance of Convenient switch cabinet reduces labour Amount, greatly improves cleaning efficiency, adaptable, easy to spread.

Claims (8)

1. a kind of MNS type low-voltage distribution cabinet, which is characterized in that including power distribution cabinet main body (1), have on main body (1) epipleural multiple Heat release hole is fixed with the hemispherical cover board (2) that Open Side Down, cover board (2) outer rim and switchgear epipleural on main body (1) epipleural Sealing is fixed together, and cover board (2) top is provided with through-hole;It is provided with horizontal ventilation opening on described main body (1) side wall, is divulged information Strainer is fixed in mouthful, two sides are respectively and fixedly provided with a horizontal rack gear (3) to the ventilation opening up and down, have energy on the outside of ventilation opening The rectangular housing (4) moved left and right along ventilation opening, shell (4) rear end are openning shape, have in shell (4) it is vertical and be able to rotate the One round roller (5), the first round roller (5) both ends are run through shell (4) side wall and are placed on the outside of shell (4), fixed in the first round roller (5) Have with rack gear (3) one-to-one first gear (6), have between first gear (6) and shell (4) side wall and the first round roller (5) Coaxial second gear (7) has the second round roller (8) in parallel on the right side of the first round roller (5), has in the second round roller (8) and the Two gears (7) correspond and intermeshing third gear (9), and second gear (7) can drive third gear (9) to rotate, the There is hard fibre on the periphery of one round roller (5) and the second round roller (8), planetary gear machine is installed on the upside of shell (4) right end Structure wherein has the gear teeth engaged with rack gear (3) on gear ring (10) periphery, in a ring, planet carrier (11) is with for planet carrier (11) Three gears (9) rotation, shell (4) is interior the shaft (14) being able to rotate, and shaft (14) upper end and sun gear (12) are fixed, shaft (14) lower end through shell (4) side wall and is placed on the downside of shell (4), and shaft (14) lower end is set with coaxial column (13), column (13) upper end and shell (4) are fixed, and shaft (14) lower end is set with first sleeve (15), and shaft (14) can drive First sleeve (15) one-directional rotation, shaft (14) lower end are set with second sleeve (16), and second sleeve (16) is placed in first sleeve (15) lower end, shaft (14) can drive second sleeve (16) to one-directionally rotate, the outer circle of first sleeve (15) and second sleeve (16) Multiple flabellums are respectively and fixedly provided on face;Shell (4) is intracavitary to be connected between column (13) through pipeline, and fan blade rotating kinetic energy is by shell (4) Intracavitary fugitive dust is pumped out through column (13).
2. a kind of MNS type low-tension switch cabinet according to claim 2, which is characterized in that end cap under the column (13) Equipped with movable cylinder (17), for movable cylinder (17) with column (13) through being threadedly coupled, there are multiple opening upwards in movable cylinder (17) lower end Cloth bag (18), the material of cloth bag (18) are cloth or felt that synthetic fibers, natural fiber or glass fibre are made into.
3. a kind of MNS type low-tension switch cabinet according to claim 1, which is characterized in that the second gear (7) it is straight Diameter is greater than the diameter of third gear (9), the fiber phase mutual connection on the first round roller (5) side close to each other with the second round roller (8) Touching;There is interval between the third gear (9) and planet carrier (11), has in interval transmission gear (19), transmission gear (19) Central axis be fixed on shell (4) side wall, transmission gear (19) can rotate on center shaft.
4. a kind of MNS type low-voltage distribution cabinet according to claim 1, which is characterized in that the first sleeve (15) with Shaft is equipped with one-way clutch between (14), and when shell (4) is moved to the left, shaft (14) rotates forward and can drive first sleeve (15) it rotates, and second sleeve (16) does not follow shaft (14) to rotate;It is installed between second sleeve (16) and shaft (14) unidirectional Clutch, when shell (4) moves right, shaft (14) can drive second sleeve (16) rotate, and first sleeve (15) not with It is rotated with shaft (14).
5. a kind of MNS type low-voltage distribution cabinet according to claim 1, which is characterized in that the first sleeve (15) and For flabellum in second sleeve (16) at upper and lower multilayer, every layer of multiple flabellums are circumferentially uniformly distributed.
6. a kind of MNS type low-voltage distribution cabinet according to claim 1, which is characterized in that the gear ring (10) is far from shell Have on the side of body (4) plectane (20), has coaxial connecting shaft on sun gear (12), connecting shaft is through plectane (20) and sets On the outside of plectane (20), there is annular protrusion on one end that connecting shaft is placed on the outside of plectane (20), annular protrusion and plectane (20) are no It is detached from.
7. a kind of MNS type low-voltage distribution cabinet according to claim 1, which is characterized in that on described shell (4) front side board It is provided with multiple vertical through slots, is fixed with a collection box (21) on front side of each through slot, collection box (21) is intracavitary with shell (4) chamber Interior connection, collection box (21) lower end are connected to column (13) through pipeline.
8. a kind of MNS type low-voltage distribution cabinet according to claim 1, which is characterized in that be placed in the ventilation opening The rectangular cylinder (22) being adapted to it, rectangular cylinder (22) one end are placed on the outside of main body (1), and rectangular cylinder (22) is placed in outside main body (1) chamber One end outer edge surface on have annular protrusion, annular protrusion is fixed with main body (1) through multiple screws, far from main in rectangular cylinder (22) There is raised item in one end of body (1), has multiple blind holes on the one end of main body (1) in rectangular cylinder (22), is placed in blind hole more A wedge block (23) that can be moved in blind hole, is connected with pressure spring between wedge block (23) and blind via bottom, wedge block (23) with There is interval between raised item, be spaced interior placement strainer, strainer can be entered in interval by the side of wedge block (23).
CN201910548351.9A 2019-06-24 2019-06-24 MNS type low-voltage distribution cabinet Active CN110148896B (en)

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CN114233072A (en) * 2022-01-07 2022-03-25 江苏快呗新能源科技有限公司 Technical service system for parking lot service

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