CN109449024A - A kind of position local device of drawer type automatic conversion electric appliance - Google Patents
A kind of position local device of drawer type automatic conversion electric appliance Download PDFInfo
- Publication number
- CN109449024A CN109449024A CN201811590473.6A CN201811590473A CN109449024A CN 109449024 A CN109449024 A CN 109449024A CN 201811590473 A CN201811590473 A CN 201811590473A CN 109449024 A CN109449024 A CN 109449024A
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- Prior art keywords
- lock
- slide rail
- fixed
- fixing axle
- card slot
- Prior art date
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- 238000006243 chemical reaction Methods 0.000 title claims abstract description 9
- 238000012360 testing method Methods 0.000 claims description 19
- 230000033001 locomotion Effects 0.000 claims description 14
- 239000007787 solid Substances 0.000 claims 1
- 238000012423 maintenance Methods 0.000 abstract description 11
- 238000012546 transfer Methods 0.000 abstract description 6
- 230000005540 biological transmission Effects 0.000 abstract description 5
- 238000010586 diagram Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000005611 electricity Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 208000002193 Pain Diseases 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/20—Interlocking, locking, or latching mechanisms
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- Drawers Of Furniture (AREA)
Abstract
The present invention relates to a kind of position local device of drawer type automatic conversion electric appliance, the locking device is fixed on a mounting board by fixed plate using nut；First fixing axle, which passes through, latches upper corresponding aperture, and lock is fixed on a mounting board；Spring is put on connecting rod, and one end that one end that connecting rod is equipped with U-type groove is equipped with U-type groove with lock is mutually stung and is blocked；Second fixing axle passes through corresponding hole on roller bearing and fixed guide rail and roller bearing and fixed guide rail is fixed on mounting plate, ensure that slide rail can slide in fixed guide rail；Slide rail is placed in fixed guide rail, upper veneer is bonded with roller bearing.Structure of the invention is compact, reasonable；Part is few, and using link transmission, structure is simple, locking bit is equipped with spring and provides retentivity, avoids position mobile, can reflect position of the product ontology in drawer chassis in real time, the true latched position state of automatic transfer switching electric appliance is provided for debugging and maintenance personnel, to prevent hidden danger.
Description
Technical field
The present invention relates to a kind of position local devices of drawer type automatic conversion electric appliance, belong to automatic transfer switching electric appliance skill
Art field.
Background technique
With the development of the social economy, automatic transfer switching electric appliance is widely used in building, fire-fighting, industry, communication, gold
Melt, traffic, in the low-voltage distribution system in fields such as military affairs, as the conversion between two-way power supply, with ensure important load not between
Cut-off electricity allows short time power-off safeguarded, debugged, and overhauls.This requires that product can carry out it is very convenient and safe
Maintenance, debugging, maintenance with guarantee electricity consumption continuity and maintenance of equipment personnel life safety, the present apparatus be drawer type product
The novel position locking device of designed research and development.In Low Voltage Electrical Apparatus, automatic transfer switching electric appliance mounting means has fixed
With two kinds of mounting means of drawer type, the appearance of drawer type product solves product switching mechanism aging in use for some time and needs
It replaces, but replaces difficult problem, as long as the ontology of replacement interiors of products, do not need replacement drawer chassis, so there is no need to
Dismount the primary and secondary circuit of entire power supply cabinet body, quick-replaceable product ontology.But new product ontology is put into old production
In product drawer chassis, whether the two is adapted to, it is necessary to be debugged this link by maintenance to verify, that is, be disconnected, tests, connecting this
Whether three operative locked positions all reach the normal requirement of product.Therefore each work of the product ontology in drawer chassis
Latched position is most important, only in each correct latched position, just can be carried out maintenance debugging, otherwise can not only damage production
Product can also bring security risk for operator.So novel position local device not only reduces the Maintenance and Repair of enterprise
Also to provide correct information for operator and maintenance personal, Operation and maintenance Shi Caineng prevents security risk and avoids cost
Unnecessary loss.
Currently, general drawer type product space locking device, mostly uses fix slide rail with guiding axis greatly, pass
Moving axis drives all gear, and all gear drives sector gear, then drives guiding axis, and slide rail is driven to be moved.This position
Setting locking device has following problems: 1), using gear drive since occlusion unevenly leads to card resistance between gear leading to product sheet
It is mobile that body cannot complete position；2), extreme case lower gear collapses tooth, and entire transmission system failure stops transmission；3), by
Mostly there is unstability in itself in locking device part, fault point is more, and keep the rotation of the rotary shaft by all gears at different levels unstable,
Deviate correct position so as to cause the connecting rod in the rotary shaft for being located at certain grade of all gear, product ontology cannot be made to reach correctly lock
Positioning is set, to bring difficulty to operator and debugging and maintenance personnel；4) location transmission, which is carried out, with gear also increases switch
Manufacturing cost.
Summary of the invention
The purpose of the present invention is overcoming the deficiencies in the prior art, the novel drawer type automatic conversion of one kind is provided and is opened
Powered-down device position local device, it is simple and compact for structure, it can correctly reflect position of the product ontology in drawer chassis, also safety can
It leans on.
According to technical solution provided by the invention, the drawer type automatic transfer switching electric appliance position local device, including
Mounting plate, fixed guide rail, fixed plate, spring, connecting rod, the first fixing axle, lock, slide rail, roller bearing, the second fixing axle, institute
State nut fixed plate is fixed on a mounting board；First fixing axle, which passes through, latches upper corresponding aperture, and lock is fixed on a mounting board,
But lock can be around the first fixing axle flexible rotating；Put on spring on connecting rod, then by connecting rod one end pass through fixed plate corresponding aperture and
One end that one end that connecting rod is equipped with U-type groove is equipped with U-type groove with lock is mutually stung and is blocked by compressed spring；Second fixing axle passes through rolling
Roller bearing and fixed guide rail are fixed on mounting plate by corresponding hole on axis and fixed guide rail, and wherein roller bearing can turn around the second fixing axle
It is dynamic, it ensure that slide rail can slide in fixed guide rail；Slide rail is placed in fixed guide rail, upper veneer and roller bearing paste
It closes.
As a further improvement of the present invention, the lock is equipped with the first lock slope surface A and the second lock slope surface B, when
It contacts when slide rail slides to the right with the first lock slope surface A, is connect when slide rail slides to the left with the second lock slope surface B
Touching.
As a further improvement of the present invention, the slide rail is equipped with open position card slot C, testing position card slot D
And link position card slot E；The slide rail can by the left or move right drive lock around the first fixing axle carry out
Clockwise movement, when the link position card slot E on slide rail moves to latched position, one end of lock falls into link position
Card slot E simultaneously provides retentivity by spring, and slide rail is locked in link position；Slide rail is moved into testing position card slot
D, lock do counterclockwise movement around the first fixing axle, provide retentivity, lock unlock by spring, slide rail continuation is transported to the right
Dynamic, lock falls into testing position card slot D, and slide rail is locked in testing position；First unlock lock, lock one end fall into disconnection
Position card slot C, slide rail are locked in open position.
Compared with the prior art the present invention has the advantage that
Structure of the invention is compact, reasonable；Part is few, and using link transmission, structure is simple, and locking bit is equipped with spring and provides holding
Power avoids position mobile, can reflect position of the product ontology in drawer chassis in real time, provide automatically for debugging and maintenance personnel
The true latched position state of transfer switching equipment, to prevent hidden danger.
Detailed description of the invention
The invention will be further described with reference to the accompanying drawings and embodiments:
Fig. 1 is the structural diagram of the present invention.
Fig. 2 is the structural schematic diagram of the fixed guide rail of the present invention.
Fig. 3 is the structural schematic diagram of slide rail of the present invention.
Fig. 4 is the structural schematic diagram of connecting rod of the present invention.
Fig. 5 is the structural schematic diagram that the present invention latches.
Fig. 6 is the structural schematic diagram of fixed plate of the present invention.
Description of symbols
1- mounting plate, 2- fixed guide rail, 3- fixed plate, 4- nut, 5- spring, 6- connecting rod, the 7, first fixing axle, the second fixing axle
11,8- lock, 9- slide rail and 10- roller bearing.
Specific embodiment
Embodiment 1: slide rail 9 slides to the left, is successively locked in disconnection, test, on-position；
As shown in Fig. 1 ~ 6: in order to enable position locking device accurately locks position of the product ontology in drawer chassis, packet of the present invention
Mounting plate 1 is included, the mounting plate 1 is equipped with nut 4, fixed plate 3 is fixed on mounting plate 1；First fixing axle 7 passes through lock
Corresponding aperture on button 8, lock 8 is fixed on mounting plate 1, but latching 8 can be around 7 flexible rotating of the first fixing axle；It is worn on connecting rod 6
Upper spring 5, then by 6 one end of connecting rod across the corresponding aperture of fixed plate 3, connecting rod 6 is had one end and the lock of U-type groove by compressed spring 5
8, which have one end of U-type groove mutually to sting, blocks；First fixing axle 7 by roller bearing 10 and is consolidated in corresponding hole on roller bearing 10 and fixation guide rail 2
Determine guide rail 2 to be fixed on mounting plate 1, wherein roller bearing 10 can be around 7 flexible rotating of the first fixing axle, this ensure that slide rail
9 can fix easy slide in guide rail 2；Slide rail 9 is placed in fixed guide rail 2, upper veneer is bonded with roller bearing 10.Institute
It states lock 8 and is equipped with the first lock slope surface A and the second lock slope surface B, the slide rail 9 is equipped with open position card slot C, examination
Test position card slot D and link position card slot E.
As shown in Figure 3: when slide rail 9 slides to the left to be entered in drawer chassis with product ontology, sliding is led first
Rail 9 can touch on the direction of the second sliding of lock slope surface B, the second lock slope surface B in slide rail 9 to the left, continue to press on
Slide rail 9 moves downward, and second lock of the contact of slide rail 9 slope surface B will push lock 8 and carry out up time upwards about fixing axle 7
Needle rotation, lock 8 are in occlusive state with connecting rod 6 originally, during lock 8 rotates clockwise can compressed springs 5, when stinging
After chalaza gets over the vector point of exertin, spring 5, which discharges, quickly pushes 8 clockwise movements of lock, when first on slide rail 9 is disconnected
When open position card slot C moves to latched position, open position card slot C can quickly be fallen into and provide guarantor by spring 5 by latching 8 one end
Slide rail 9 is locked in open position by holding force；Slide rail 9 is moved into test latched position, lock is lifted by manpower first
It detains 8 right side one end to be lifted up, lock 8 is allowed to do counterclockwise movement around fixing axle 7, when lock 8 is transported clockwise with 6 biting point of connecting rod
At this moment sharp downward movement after the dynamic arrow point crossed on 5 power direction of spring provides retentivity, 8 unlock of lock, sliding by spring 5
Guide rail 9 can continue to move downward, and for motion process as open position, lock 8 falls into testing position card slot D, will finally slide
Dynamic guide rail is locked in testing position；The locking of link position is as mode of operation above, and first unlock lock 8, latches 8 one end
Link position card slot E is fallen into, slide rail 9 is locked in link position.
Embodiment 2: slide rail 9 slides to the right, is successively locked in connection, test, open position；
Such as Fig. 1 ~ 6, shown: in order to enable position locking device accurately locks position of the product ontology in drawer chassis, the present invention
Including mounting plate 1, fixed plate 3 is equipped on the mounting plate 1, it is fixed by screw, nut 4.Lock 8 is fixed on mounting plate
In the first fixing axle 7 on 1, lock can be freely rotated around the first fixing axle 7；The bullet being installed between fixed plate 3 and lock 8
Spring 5 and connecting rod 6；Fixed guide rail 2 and roller bearing 10 are fixed on the second fixing axle 11 on mounting plate 1, roller bearing 10 by fixed guide rail 2
It can be freely rotated around the second fixing axle 11, slide rail 9 is mounted in fixed guide rail 2, and slide rail 9 is equipped with 8 one end of lock
Fall into position locking card slot, open position card slot C, testing position card slot D, link position card slot E；When slide rail 9 is slided to the right
Dynamic when exiting in drawer chassis with product ontology, slide rail 9 can touch the first lock slope surface A, the first lock slope surface A first
On the direction of the sliding of slide rail 9 to the right, continues to press on slide rail 9 and move right, first lock of the contact of slide rail 9
Slope surface A will push lock 8 and be rotated clockwise upwards about fixing axle 7, and lock 8 is in occlusive state with connecting rod 6 originally, lock
Meeting compressed spring 5 during button 8 rotates clockwise, after the vector point of exertin is got in biting point, spring 5, which discharges, quickly pushes lock
8 clockwise movements are detained, when first link position card slot E on slide rail 9 moves to latched position, latch 8 one end
Link position card slot E can quickly be fallen into and provide retentivity by spring 5, slide rail 9 is locked in link position；Sliding is led
Rail 9 moves to test latched position, lifts 8 right side one end of lock by manpower first and is lifted up, allows lock 8 around the first fixing axle
7 do counterclockwise movement, after latching 8 and 6 biting point clockwise movement of connecting rod crosses the arrow point on 5 power direction of spring quickly downwards
At this moment movement provides retentivity, 8 unlock of lock by spring 5, slide rail 9 can continue to move right, motion process and connection
Position is the same, and lock 8 falls into testing position card slot D, and slide rail is finally locked in testing position；The locking of open position with
Mode of operation above is the same, first unlock lock 8, and 8 one end of lock fall into open position card slot C, and slide rail 9 is locked in disconnection
Position.
The slide rail is fixing guide rail interior sliding, and lock is pushed to rotate around fixing axle, when connecting rod is stung with what is latched
After the arrow point on direction that chalaza passes through spring force, lock rotation is quickly pushed, the other end of lock falls into slide rail locking
Positioning is set in card slot, locks slide rail, it is prevented to continue to slide, it is necessary to could continue to slide after artificial unlock.
The slide rail can by the left or move right drive lock around fixing axle carry out clockwise movement,
Lock one end is fallen into card slot, is reached in connection, test, is connected three positions, slide rail is locked on each position, in spring
It is maintained at latched position under the spring-force driven dual of release, slide rail is avoided to continue to slide.Such structure design ensure that
Product in turn ensures safety of the product to equipment and personnel in the stability of use process.
Certainly the above embodiments merely illustrate the technical concept and features of the present invention, and its object is to allow be familiar with technique
People can understand the content of the present invention and implement it accordingly, it is not intended to limit the scope of the present invention.It is all according to this hair
The modification that the Spirit Essence of bright main technical schemes is done, should be covered by the protection scope of the present invention.
Claims (3)
1. a kind of position locking device of drawer type automatic conversion electric appliance, it is characterised in that: including mounting plate (1), fixed guide rail
(2), fixed plate (3), spring (5), connecting rod (6), the first fixing axle (7), lock (8), slide rail (9), roller bearing (10), second
Fixed plate (3) is fixed on mounting plate (1) by fixing axle (11), the nut (4)；First fixing axle (7) passes through on lock (8)
Lock (8) is fixed on mounting plate (1) by corresponding aperture, but latching (8) can be around the first fixing axle (7) flexible rotating；Connecting rod (6)
On put on spring (5), then by connecting rod (6) one end pass through fixed plate (3) corresponding aperture and compressed spring (5), connecting rod (6) is equipped with
One end that one end of U-type groove is equipped with U-type groove with lock (8), which is mutually stung, blocks；Second fixing axle (11) passes through roller bearing (10) and fixed
Roller bearing (10) and fixed guide rail (2) are fixed on mounting plate (1) by corresponding hole on guide rail (2), and wherein roller bearing (10) can be around the
Two fixing axles (11) rotation ensure that slide rail (9) can the sliding in fixed guide rail (2)；Slide rail (9) is placed on solid
Determine in guide rail (2), upper veneer is bonded with roller bearing (10).
2. a kind of position local device of drawer type automatic conversion electric appliance according to claim 1, it is characterised in that: described
Lock (8) is equipped with the first lock slope surface A and the second lock slope surface B, latches slope with first when slide rail (9) slides to the right
A contact in face is contacted when slide rail (9) slides to the left with the second lock slope surface B.
3. a kind of position local device of drawer type automatic conversion electric appliance according to claim 1, it is characterised in that: described
Slide rail (9) is equipped with open position card slot C, testing position card slot D and link position card slot E；Slide rail (9) energy
By to the left or move right drive lock (8) around the first fixing axle (7) carry out clockwise movement,
When the link position card slot E on slide rail (9) moves to latched position, one end of lock (8) falls into link position
Card slot E simultaneously provides retentivity by spring (5), and slide rail (9) is locked in link position；Slide rail (9) is moved into examination
Position card slot D is tested, (8) is latched around the first fixing axle (7) and does counterclockwise movement, provides retentivity, lock (8) solution by spring (5)
Lock, slide rail (9) continue to move right, and lock (8) falls into testing position card slot D, and slide rail is locked in testing position；
First unlock lock (8), lock (8) one end fall into open position card slot C, and slide rail (9) is locked in open position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811590473.6A CN109449024B (en) | 2018-12-25 | 2018-12-25 | Position locking device of drawer type automatic switching equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811590473.6A CN109449024B (en) | 2018-12-25 | 2018-12-25 | Position locking device of drawer type automatic switching equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109449024A true CN109449024A (en) | 2019-03-08 |
| CN109449024B CN109449024B (en) | 2024-02-02 |
Family
ID=65535472
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811590473.6A Active CN109449024B (en) | 2018-12-25 | 2018-12-25 | Position locking device of drawer type automatic switching equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109449024B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116234225A (en) * | 2023-05-09 | 2023-06-06 | 深圳市首航新能源股份有限公司 | Mounting bracket and energy storage system |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6254205B1 (en) * | 1999-02-02 | 2001-07-03 | Thomas Regout Usa Inc. | Rail assembly with homing device and interlock |
| JP2007154452A (en) * | 2005-12-01 | 2007-06-21 | Itoki Corp | Locking device for drawer in storage furniture |
| CN201788842U (en) * | 2010-08-17 | 2011-04-06 | 无锡韩光电器有限公司 | Permanent magnetic operating mechanism of automatic change over switch |
| JP2011236599A (en) * | 2010-05-07 | 2011-11-24 | Miwa Lock Co Ltd | Mode conversion mechanism in electric lock |
| CN103366981A (en) * | 2013-07-09 | 2013-10-23 | 上海电器科学研究院 | Electric-operation mechanism capable of avoiding malfunction |
| CN203377125U (en) * | 2013-07-09 | 2014-01-01 | 上海电器科学研究院 | Anti-maloperation electrical operation mechanism |
| US20170051547A1 (en) * | 2015-08-21 | 2017-02-23 | Grass Gmbh | Device for Opening and Closing a Movable Furniture Part |
| CN209544194U (en) * | 2018-12-25 | 2019-10-25 | 无锡韩光电器股份有限公司 | A kind of position local device of drawer type automatic conversion electric appliance |
-
2018
- 2018-12-25 CN CN201811590473.6A patent/CN109449024B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6254205B1 (en) * | 1999-02-02 | 2001-07-03 | Thomas Regout Usa Inc. | Rail assembly with homing device and interlock |
| JP2007154452A (en) * | 2005-12-01 | 2007-06-21 | Itoki Corp | Locking device for drawer in storage furniture |
| JP2011236599A (en) * | 2010-05-07 | 2011-11-24 | Miwa Lock Co Ltd | Mode conversion mechanism in electric lock |
| CN201788842U (en) * | 2010-08-17 | 2011-04-06 | 无锡韩光电器有限公司 | Permanent magnetic operating mechanism of automatic change over switch |
| CN103366981A (en) * | 2013-07-09 | 2013-10-23 | 上海电器科学研究院 | Electric-operation mechanism capable of avoiding malfunction |
| CN203377125U (en) * | 2013-07-09 | 2014-01-01 | 上海电器科学研究院 | Anti-maloperation electrical operation mechanism |
| US20170051547A1 (en) * | 2015-08-21 | 2017-02-23 | Grass Gmbh | Device for Opening and Closing a Movable Furniture Part |
| CN209544194U (en) * | 2018-12-25 | 2019-10-25 | 无锡韩光电器股份有限公司 | A kind of position local device of drawer type automatic conversion electric appliance |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116234225A (en) * | 2023-05-09 | 2023-06-06 | 深圳市首航新能源股份有限公司 | Mounting bracket and energy storage system |
| CN116234225B (en) * | 2023-05-09 | 2023-08-04 | 深圳市首航新能源股份有限公司 | Mounting bracket and energy storage system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109449024B (en) | 2024-02-02 |
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