CN108879451A - A kind of circuit breaker drawer base transmission device - Google Patents
A kind of circuit breaker drawer base transmission device Download PDFInfo
- Publication number
- CN108879451A CN108879451A CN201710332209.1A CN201710332209A CN108879451A CN 108879451 A CN108879451 A CN 108879451A CN 201710332209 A CN201710332209 A CN 201710332209A CN 108879451 A CN108879451 A CN 108879451A
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- China
- Prior art keywords
- screw rod
- lock
- transmission device
- planker
- square shaft
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B11/00—Switchgear having carriage withdrawable for isolation
- H02B11/12—Switchgear having carriage withdrawable for isolation with isolation by horizontal withdrawal
- H02B11/127—Withdrawal mechanism
- H02B11/133—Withdrawal mechanism with interlock
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Trip Switchboards (AREA)
Abstract
A kind of circuit breaker drawer base transmission device, including drawer chassis and breaker body, drawer chassis includes transmission device, transmission device is located on drawer chassis, it includes planker, screw rod, locking structure, square shaft, latching device and spring, drive planker mobile together with square shaft when planker is matched with screw rod and rotated by screw rod, latching device includes that the first, second lock and lock reply structure, lock replys structure and provides restoring force for the first, second lock, when transmission device is in the lock state, screw rod is locked by locking structure；When transmission device is in the unlocked state, locking structure is limited to the locking of disengaged position and locking structure releasing to screw rod by the second lock of square shaft triggering；When transmission device is in original state, locking structure is limited to the locking of disengaged position and locking structure releasing to screw rod by the first lock of square shaft triggering.It can implement locking when breaker body is in three connection, test and separation positions and can unlock when needing further mobile.
Description
Technical field
The invention belongs to low voltage electrical apparatus technology fields, and in particular to a kind of circuit breaker drawer base transmission device.
Background technique
With greatly developing for national grid, in the environment of needing using omnipotent breaker, drawout breaker by
In having the characteristics that maintenance is convenient and is widely used.Drawout breaker is divided into breaker body and drawer chassis two parts, takes out
Drawer seat is electrically connected with external power supply, i.e., drawer chassis is installed in cabinet body, is electrically connected with the intracorporal conductive bus bar of cabinet, and breaker sheet
Body can be promoted or be extracted out in drawer chassis, i.e., breaker body can move in drawer chassis, to realize in connection, test and divide
Switching between from three positions.In the case where needing to overhaul breaker body or safeguard, breaker body only need to be pulled out i.e.
Can, without removing drawer chassis.There are three positions for tool under the actual working environment of drawout breaker：Connection i.e. above-mentioned, examination
It tests and disengaged position, when the breaker body in drawer chassis reaches any one position in three above-mentioned positions, open circuit
Device ontology answers stop on the position, and prompts to operator.For this purpose, drawout breaker has three position lock functions, when
When operator needs further running circuit breaker ontology, drawout breaker, which should have, solves above-mentioned three position lock state
The function of lock.Such setting, which is avoided that, causes unnecessary damage and other unnecessary accidents to breaker.Raising personnel with
The safety of equipment.
It can be seen in the technical information of the locking device of drawout breaker in disclosed Chinese patent literature, it is typical as sent out
" locking device of drawout breaker " that bright license notification number CN1159820C recommends discloses a kind of breaker with three
Position locking structure, since the patent formula amount of parts is more, the matching relationship between each components is more, thus brings entire
Three position locking structure precision are low, and processing cost is high.
Summary of the invention
Help to reduce components the purpose of the present invention is to provide one kind and uses simplified structure and improve whole essence
Three positions are spent, are conducive to connection by breaker body in drawer chassis, test and separate to implement to lock and when operation
The circuit breaker drawer base transmission device that person needs to unlock when further running circuit breaker ontology.
The task of the present invention is in this way to complete, a kind of circuit breaker drawer base transmission device, including drawer chassis and open circuit
Device ontology, breaker body is matched with drawer chassis and the breaker body is existed relative to drawer chassis by propulsion or extraction
Connection, test and separation switch between three positions, and drawer chassis includes a transmission device, which is located on drawer chassis, and
And the transmission device includes planker, screw rod, locking structure, square shaft, latching device and spring, planker matched with screw rod and by
Drive planker mobile together with the square shaft connecting with planker when screw rod rotates, latching device includes the first lock, the second lock and lock
Button reply structure, first lock and second lock is rotatably arranged on the drawer chassis, lock reply structure be first lock and
Second lock provides restoring force, and when transmission device is in the lock state, spring pushes locking structure to be in the locked position, by locking
Determine structure to lock screw rod；When transmission device is in the unlocked state, by the described square shaft triggering second lock incite somebody to action
Locking structure is limited to disengaged position and locking structure releases the locking to screw rod；When transmission device is in original state,
Locking structure is limited to disengaged position by square shaft triggering first lock and locking structure releases lock to screw rod
It is fixed.
In a specific embodiment of the invention, the bottom plate of the planker and the drawer chassis is slidably matched, described
Screw rod pass through the planker, the axial direction of screw rod and the glide direction of planker are consistent, screw rod towards planker one end with drag
Plate is threadedly engaged, and the locking structure is arranged in the one end of screw rod far from planker and is moved forward and backward along the axial direction of screw rod,
The square shaft is parallel with screw rod and is spaced apart from each other setting, and one end of the square shaft towards planker is fixedly connected with planker, and described
One lock and the second lock empty set are on the screw rod.
In another specific embodiment of the invention, the planker is made of a level board and a vertical panel, water
The state that the bottom plate of plate and the drawer chassis fits is slidably matched, and two teeth side by side is offered on the level board
Hole, vertical panel are formed by the vertical bending in side of level board towards the locking structure, the square shaft towards planker one end with
Vertical panel connection, the screw rod pass through vertical panel and are threadedly engaged with vertical panel realization.
In another specific embodiment of the invention, on the vertical panel and corresponding to the square shaft
Position offers a square shaft clamping hole, and square shaft is fixed towards one end of the planker and the square shaft clamping hole and connected.
In another specific embodiment of the invention, the locking structure includes a lockplate and lock fit
Block, lockplate and lock fit block are fixed to each other and lockplate and lock fit block empty set are on the screw rod.
There are one in specific embodiment, constituting on the screw rod has fixing section of the invention, and in the lock
A clamping hole is offered on fixed board, which matches with section is fixed, on the coordinating block pedestal of the lock fit block simultaneously
And a screw rod through hole is offered in the position for corresponding to screw rod, the screw rod passes through the screw rod through hole.
In a still more specific embodiment of the invention, on the lock fit block and back to the side
The side of axis is extended with a coordinating block extension end, and a first position limited section and one second are formed on the coordinating block extension end
Position restriction portion, the first position limited section and second position limited section are matched with the latching device.
In a specific embodiment in turn of the invention, the transmission device further includes having a fixed plate, this is solid
Fixed board is fixed on the bottom of the drawer chassis, and the screw rod passes through fixed plate, and the spring is a pressure spring and is set in silk
On bar, one end is resisted against in fixed plate, and the other end is resisted against on the locking structure.
Constituting on the square shaft in yet a further embodiment of the present invention has instruction section, in the instruction section
Upper surface be formed with the position protrusion for being raised in upper surface, and be formed in the lower surface of instruction section and be depressed in the position of lower surface
Recess is set, position protrusion is matched with first lock, and position recess is matched with second lock, and position is convex
It rises and the quantity of position recess is respectively three, with three corresponding separation, test and connection positions.
Of the invention again and then in a specific embodiment, first lock has the first stop end, first
Position restriction end and the first mounting hole, the first mounting hole empty set is on the screw rod and can rotate relative to screw rod, first position
Limiting on end also there is first position to limit protrusion；Described second lock have the second stop end, the second position limit end and
Second mounting hole, the second mounting hole empty set rotate on screw rod and relative to screw rod, and the second position, which limits, also has second on end
Position restriction protrusion, it is tension spring that the lock, which replys structure, and the first spring that one end connection first position limits on end is affiliated to
Kong Shang, the second spring that the other end connection second position limits end are affiliated on hole.
Circuit breaker drawer base transmission device provided by the invention has amount of parts few relative to prior art, while by
It is concentrated on square shaft and locking structure in the structure for being related to positional factor, so that overall precision is high；It can be effectively in breaker
Connection that ontology is in drawer chassis, test and separate three positions implement to lock and when operator need it is further mobile
It can unlock when breaker body.
Detailed description of the invention
Circuit breaker drawer base schematic diagram described in Fig. 1 this patent.
Circuit breaker drawer base transmission device schematic diagram described in Fig. 2 this patent.
Circuit breaker drawer base transmission device explosive view described in Fig. 3 this patent.
Lock fit block schematic diagram described in Fig. 4 this patent.
First lock schematic diagram described in Fig. 5 this patent.
Second latch portion schematic diagram described in Fig. 6 this patent.
Buckle structure schematic diagram described in Fig. 7 this patent.
Screw rod described in Fig. 8 this patent and locking structure cooperate schematic diagram.
Transmission device described in Fig. 9 this patent is in the lock state.
Transmission device described in Figure 10 this patent is in the unlocked state.
Transmission device described in Figure 11 this patent is in lock status.
In figure：1. drawer chassis；2. transmission device；21. planker；211. level board；2111. perforation；212. vertical panel；
2121. square shaft clamping hole；22. screw rod；221. fix section；23. fixed plate；24. locking structure；241. lockplate；2411. card
Solid hole；242. lock fit blocks；2421. coordinating block pedestal；24211. screw rod through hole；2422. coordinating block extension end；24221.
First position limited section；24222. second position limited section；243. fixing screws；25. square shaft；251. position instruction sections；2511.
Position protrusion；2512. position is recessed；252. square shaft block ends；2521. abutment end；2522. hook；26. latching device；261.
First lock；2611. the first stop end；2612. first positions limit end；26121. first position limits protrusion；26122. the
One is affiliated to hole；2613. the first mounting hole；262. second locks；2621. the second stop end；2622. second positions limit end；
26221. the second position limits protrusion；26222. second is affiliated to hole；2623. the second mounting hole；263. locks reply structure；27.
Spring.
Specific embodiment
Applicant will in conjunction with attached drawing, detailed description of specific embodiments of the present invention below, but applicant is to embodiment
Description be not limitation to technical solution, any design according to the present invention, which changes in the form rather than substance, all should be considered as this
The protection scope of invention.
Referring to Figure 1, the drawer chassis 1 and breaker body of open frame circuit breaker are shown in Fig. 1, breaker body can phase
Shift in position is realized to drawer chassis, i.e. breaker body can enter drawer chassis 1 or pull out drawer chassis 1, when breaker body enters
When drawer chassis 1, breaker body is electrically connected with the realization of drawer chassis 1, so that the load of breaker is accessed power grid.When breaking down
When, the dynamic/static contact separation of the contact system inside the breaker body, to cut off electrical connection, protection is loaded.It is aforementioned
Drawer chassis 1 there is inner cavity for accommodating breaker body.Movement of the breaker body in drawer chassis 1 passes through people
Power or electric power drive, and realize particular by the hitch structure being located on drawer chassis 1, i.e., by peripheral operation person drive come
Hitch structure movement is driven, hitch structure traction breaker body moves in drawer chassis.Alternatively, the touching for passing through external signal
Hair is driven hitch structure traction breaker body to move in drawer chassis by motor.
Fig. 2 to 8 is referred to, drawer chassis 1 above-mentioned includes transmission device 2, and the transmission device 2 is located on drawer chassis 1,
For when breaker body is moved to specified position with respect to drawer chassis 1, breaker body to be locked on the position, if not
Implement unlock operation, the breaker body can not be left the position by manpower or electric drive.The position is usual
It is three, specially disengaged position, testing position, link position.During breaker body enters drawer chassis inside, first
It is afterwards respectively disengaged position, testing position and link position.It can thus be appreciated that：Transmission device 2 is the functional component of drawer chassis 1.
Such as Fig. 2 to 8, transmission device 2 above-mentioned include planker 21, screw rod 22, fixed plate 23, locking structure 24, square shaft 25,
Latching device 26 and spring 27.Planker 21 is slidably arranged in the bottom of the drawer chassis 1（That is bottom plate）On, screw rod 22 passes through described
Planker 21, the axial direction of screw rod 22 is consistent with the glide direction of planker 21, the one end and planker of screw rod 22 towards planker 21
21 are threadedly engaged, and locking structure 24 is arranged in the one end of screw rod 22 far from planker 21 and can be before and after the axial direction along screw rod 22
Mobile, so that locking structure 24 can switch between latched position and disengaged position, square shaft 25 is parallel with screw rod 22 and interval is set
It sets, one end of the square shaft 25 towards planker 21 is connect with planker 21, and latching device 26 is rotatably arranged on screw rod 22.Screw rod 22 by
Drive planker 21 mobile after manpower or motor driven and rotation, drive square shaft 25 movement after planker 21 is mobile, latching device 26
Locking structure 24 is limited according to the position of square shaft 25 is in disengaged position, in lock state, 24 locking screw 22 of locking structure,
The rotation of screw rod 22 is prevented, so that manpower or motor can not drive screw rod 22 to rotate, is existed so as to lock breaker body
In this position.
Planker 21 is a bending metal plate, that is to say, that is formed by sheet metal bent.Planker 21 forms level board through bending
211 and vertical panel 212（Vertical sectional shape is in L-shaped）, after planker 21 is installed in place, the level board 211 and drawer chassis 1
Bottom plate be fitted, and vertical panel 212 is set on the level board 211 then with the perpendicular setting of the bottom plate of drawer chassis 1
There are two rows of perforations 2111 side by side, the perforation 2111 is used for and the gear (not shown) in the drive shaft of hitch structure
Be meshed cooperation.Since hitch structure is not belonging to transmission device 2, and it is identical as existing breaker structure, it see, for example, Shen
It asks someone the patent document referred in background technique column above, therefore no longer describes.Square shaft is offered on the side of vertical panel 212
Clamping hole 2121.Square shaft clamping hole 2121 is fixedly connected for 25 one end of square shaft.Screw rod 22 passes through the vertical panel 212,
And screw rod 22 and vertical panel 212 are to be threadedly engaged relationship, specifically, on the thread segment on screw rod 22 and vertical panel 212
Threaded hole realization is threadedly engaged, such matching relationship, so that when screw rod 22 is driven and rotates, 212 energy of vertical panel
The movement on front-rear direction occurs, and then entire planker 21 realizes the movement on front-rear direction.Front-rear direction herein refers to vertical
Directly in the direction of vertical panel 212（Fig. 9, the direction A, B illustrated in 10 by arrow）.
Screw rod 22 is usually process by a metal shaft, or phase corresponding with the threaded hole on forenamed vertical plate 212
The region being threadedly engaged, which is equipped with screw thread, becomes thread segment, which is used to be threadedly engaged with the realization of the threaded hole of planker 21.?
It constitutes to have on the screw rod 22 and fixes section 221.The fixing section 221 preferably polygon, more preferably hexagon, certainly
It is not limited to polygon, can be the shape that rectangle, triangle etc. are able to achieve clamping function.
Fixed plate 23 is a metal plate, is capable of fixing the designated position on drawer chassis 1, screw rod 22 again passes through fixed plate
23, since fixed plate 23 is cooperated by bearing and screw rod 22, so that 22 energy opposing fixed plate 23 of screw rod rotates, and fixed plate
23 can prevent screw rod 22 from shaking in the course of rotation.Since the effect of fixed plate 23 is to prevent the shaking of screw rod 22,
The shaking of screw rod 22 can't hinder the realization of 2 function of transmission device, not be necessary component, it is thus understood that a kind of optimization
The increased part of scheme institute.
Locking structure 24 is used to lock screw rod 22 when breaker body moves to separation, test, any position in connection
It is fixed, thus on a corresponding position by breaker body locking.Locking structure 24 includes lockplate 241 and lock fit block 242.
The lockplate 241 is fixedly connected with lock fit block 242.Being fixedly connected between lockplate 241 and lock fit block 242
Mode be can be a variety of forms, such as shown in Fig. 8, the two realizes fixation by fixing screws 243.In this reality
It applies in example, the lockplate 241 is used for locking screw 22, and the lockplate 241 has a clamping hole 2411, and silk
Bar 22 has the fixing section 221 cooperated with the clamping hole 2411, and the cooperation refers to, when clamping hole 2411 is inserted in fixing section
When on 221, the clamping hole 2411 is engaged with fixing section 221 and is integrated, so that screw rod 22 can not rotate, thus lockplate
241 are able to locking screw 22, and in the present embodiment, clamping hole 2411 and fixing section 221 are hexagon, but and are not limited
Fixed, due to the requirement of rigidity, the lockplate 241 is usually that metal material is made.The lock fit block 242 is for locking
Determine the cooperation of structure 24 Yu latching device 26.The lock fit block 242 includes that coordinating block pedestal 2421 and coordinating block stretch out
End 2422, the coordinating block extension end 2422 extends out from coordinating block pedestal 2421 along 22 axial direction of screw rod.It is described
Coordinating block pedestal 2421 be equipped with screw rod through hole 24211,24211 screw mandrel 22 of screw rod through hole passes through, the screw rod 22
It can be freely rotated in screw rod through hole 24211.There is first position limited section 24221 on the coordinating block extension end 2422
With second position limited section 24222, the first position limited section 24221 and second position limited section 24222 respectively with lock
Buckle mechanism 26 cooperates, i.e., limits first position limited section 24221 or the second position by the location status of latching device 26 and limit
Portion 24222, to limit the location status of lock fit block 242.Specifically, first position limited section 24221 and the second position
Limited section 24222 is step-like setting.
Square shaft 25 is strip, and 25 one end of square shaft is square shaft block end 252, and the square shaft block end 252 extend into vertical
It in the square shaft clamping hole 2121 of straight panel 212 and fixes, so that square shaft 25 can follow planker 21 to be moved forward and backward.The square shaft card
Fixed end 252 includes hook 2522 and abutment end 2521, and reliable fixing connection is realized in the two cooperation.The specific mode that fixes is card
Hook 2522 and abutment end 2521 probe into the square shaft clamping hole 2121, and hook 2522 catches on the side of square shaft clamping hole 2121
Edge, and abutment end 2521 is resisted against the interior edge of square shaft clamping hole 2121, prevents loosening for hook 2522.The square shaft 25 also wraps
Position instruction section 251 is included, position protrusion 2511 and position recess are respectively equipped in the upper and lower side of the position instruction section 251
2512, the position protrusion 2511 and position recess 2512 are three, with three corresponding separation, test, connection positions.By
Shown in Fig. 3, the position protrusion 2511 is three and is distributed in the upper side of position instruction section 251, and position is recessed
2512 are also three and are distributed in the downside for indicating section 251.The specific location of position protrusion 2511 and position recess 2512
It is to be determined by the cooperation between three positions, is not arbitrary.
Latching device 26 includes that first the 261, second lock 262 of lock and lock reply structure 263, and lock replys structure
There is 263 preferably tension spring, first locks 261 first stop end 2611, first position to limit end 2612 and the first peace
Fill hole 2613, the first mounting hole 2613 for first lock 261 installation, the first 2613 sets of mounting hole on screw rod 22, thus
First 261 sets of lock on screw rod 22 and can opposite screw rod 22 rotate, after the first lock 261 rotates, the first backstop thereon
End 2611 and first position restriction end 2612 are also followed by and rotate.First position, which limits, also has first position on end 2612
Limiting the lock of protrusion 26121. same second 262, there is the second stop end 2621, the second position to limit end 2622 and the second peace
Fill hole 2623, the second mounting hole 2623 for second lock 262 installation, the second 2623 sets of mounting hole on screw rod 22, thus
Second 262 sets of lock on screw rod 22 and can opposite screw rod 22 rotate, after the second lock 262 rotates, the second backstop thereon
End 2621 and second position restriction end 2622 are also followed by and rotate.The second position, which limits, also has the second position on end 2622
Limit protrusion 26221.It is tension spring, the first lock 261 of tension spring one end connection, other end connection second that lock, which replys structure 263,
Lock 262.Specifically, the both ends that lock replys that structure 263 is tension spring are separately connected the first extension that first position limits end 2612
The second of end 2622, which is limited, by hole 26122 and the second position is affiliated to hole 26222.First lock 261 and the second lock 262
Stacking ground covers on screw rod 22, is moved forward and backward to limit the first lock 261, second lock 262 relative to screw rod 22, can be the
Increase by two circlips on one lock 261 and the position of the correspondence screw rod 22 of the mutually separate two sides of the second lock 262 to limit first
The position of lock 261 and the second lock 262.The first lock 261 and the second lock 262 is prevented to be detached from its operating position.
Spring 27 is preferably a helical compression spring, is set on screw rod 22, and retractable, one end is resisted against fixation
On plate 23, the other end is resisted against lockplate 241, due to the fixed plate 23 with respect to drawer chassis 1 be it is fixed,
The effect of spring 27 is to provide a direction to lockplate 241（The direction arrow A in Fig. 9）On restoring force.
See that Fig. 9 to 11 is the working state schematic representation of circuit breaker drawer base transmission device of the present invention, sees Fig. 9, when
When external force drives screw rod 22 to rotate, since planker 21 and screw rod 22 are to be threadedly engaged relationship, the planker 21 is also followed by silk
The rotation of bar 22 and be moved forward and backward, meanwhile, one end fixes square shaft 25 on planker 21 and is also followed by back-and-forth motion.When upper
When stating component and moving to designated position, i.e., breaker body moves to separation, test, in connection when any position, on square shaft 25
A position protrusion 2511 by first position engaged therewith restriction protrusion 26121 boost, drive first lock 261 rotation, from
And the first stop end 2611 follows rotation, and the first stop end 2611 disengages the blocking to first position limited section 24221, and at this time the
Second stop end 2621 of two locks 262 is located at the rear of second position limited section 24222, the second position can not be stopped to limit
Portion 24222, under such state, the spring 27 pushes locking structure 24 to enter latched position, and specific lockplate 241 is inserted in
Section 221 is fixed, so that screw rod 22 be locked, as lock state at this time.
See Figure 10, when needing to be unlocked above-mentioned lock state, coordinating block 242 is pressure-locked by external manpower
Press-side, press-side are located at the end of coordinating block extension end 2422, will overcome the elastic force of spring 27 for locking structure 24 and fix
Section 221 disengages, and is moved at this time due to lock fit block 242 along the direction shown by arrow B, the second position limited section 24222
Follower's lock fit block 242 is moved along the direction shown by arrow B, after unlocking in place, the second stop end of the second lock 262
2621 are located at the front of second position limited section 24222, at this time since there is limit protrusion with the second position on square shaft 25
The position recess 2512 of 26221 cooperations, the i.e. second position limit protrusion 26221 and are replied the effect of structure 263 by lock and fallen into
In position recess 2512,262 rotation of the second lock, the second stop end 2621 follow rotation by second position limited section at this time
24222 stop, and when so that external force stopping the pressing locking structure 24, locking structure 24 can not be also pushed into lock by spring 27
Positioning is set, i.e., locking structure 24 is in disengaged position, and screw rod 22 is not locked.
See Figure 11, under above-mentioned unlocked state, external force continues that screw rod 22 is driven to rotate, described after screw rod 22 rotates
Square shaft 25 is followed by movement, and the position protrusion 2511 and position recess 2512 of square shaft 25 are also followed by movement, thus square shaft 25
Position protrusion 2511 leaves first position and limits protrusion 26121, under the action of lock replys structure 263, the first stop end
2611 again stop first position limited section 24221, and position recess 2512 leaves the second position and limits protrusion
26221, the second stop end 2621 releases the blocking to second position limited section 24222 at this time, at this point, the equally quilt of locking structure 24
It is locked in disengaged position, so that entire circuit breaker drawer base transmission device returns to original state.
Circuit breaker drawer base transmission device separation, test, the locking of three positions of connection, unlock, reply it is initial
Action process in the process is consistent with the description above course of work, is not repeated.
Claims (10)
1. a kind of circuit breaker drawer base transmission device, it is characterised in that including drawer chassis (1) and breaker body, breaker body
Matched with drawer chassis (1) and the breaker body relative to drawer chassis (1) by promote or extract out connection, test and
It separating and switches between three positions, drawer chassis (1) includes a transmission device (2), which is located on drawer chassis (1), and
And the transmission device (2) includes planker (21), screw rod (22), locking structure (24), square shaft (25), latching device (26) and spring
(27), planker (21) matches with screw rod (22) and planker (21) is driven to connect when being rotated by screw rod (22) together with planker (21)
The square shaft (25) connect is mobile, and latching device (26) includes that the first lock (261), the second lock (262) and lock reply structure
(263), the first lock (261) and the second lock (262) are rotatably arranged on the drawer chassis (1), and lock replys structure (263)
Restoring force, when transmission device (2) is in the lock state, spring (27) are provided for the first lock (261) and the second lock (262)
It pushes locking structure (24) to be in the locked position, is locked screw rod (22) by locking structure (24)；When transmission device (2) are in solution
When lock status, locking structure (24) is limited to separation position by square shaft (25) triggering second lock (262)
It sets and locking structure (24) releases locking to screw rod (22)；When transmission device (2) is in original state, by square shaft (25)
First latches (261) and locking structure (24) is limited to disengaged position and locking structure (24) releasing to silk described in triggering
The locking of bar (22).
2. a kind of circuit breaker drawer base transmission device according to claim 1, it is characterised in that the planker (21) and institute
The bottom plate for stating drawer chassis (1) is slidably matched, the screw rod (22) pass through the planker (21), the axial direction of screw rod (22) with
The glide direction of planker (21) is consistent, and one end of screw rod (22) towards planker (21) is threadedly engaged with planker (21), the locking
Structure (24) setting is moved forward and backward in the one end of screw rod (22) far from planker (21) and along the axial direction of screw rod (22), described
Square shaft (25) is parallel with screw rod (22) and is spaced apart from each other setting, and the square shaft (25) is solid towards one end of planker (21) and planker (21)
Fixed connection, first lock (261) and second lock (262) empty set are on the screw rod (22).
3. a kind of circuit breaker drawer base transmission device according to claim 2, it is characterised in that the planker (21) by
One level board (211) and a vertical panel (212) form, the state that the bottom plate of level board (211) and the drawer chassis (1) fits
It is slidably matched, and offers two perforations (2111) side by side on the level board (211), vertical panel (212) is by level board
(211) formed towards the vertical bending in side of the locking structure (24), the square shaft (25) towards planker (21) one end with
The vertical panel (212) connection, the screw rod (22) pass through vertical panel (212) and realize with vertical panel (212) and be threadedly engaged.
4. a kind of circuit breaker drawer base transmission device according to claim 3, it is characterised in that in the vertical panel
(212) a square shaft clamping hole (2121) is offered on and in the position for corresponding to the square shaft (25), and square shaft (25) is towards institute
The one end and the square shaft clamping hole (2121) for stating planker (21), which fix, to be connected.
5. a kind of circuit breaker drawer base transmission device according to claim 1 or 2 or 3, it is characterised in that the locking
Structure (24) includes a lockplate (241) and lock fit block (242), and lockplate (241) and lock fit block (242) are mutually solid
Fixed and lockplate (241) and lock fit block (242) empty set are on the screw rod (22).
6. a kind of circuit breaker drawer base transmission device according to claim 5, it is characterised in that on the screw rod (22)
Composition has fixing section (221), and a clamping hole (2411) are offered on the lockplate (241), the clamping hole (2411) with
It fixes section (221) to match, on the coordinating block pedestal (2421) of the lock fit block (242) and is corresponding to screw rod
(22) position offers a screw rod through hole (24211), and the screw rod (22) passes through the screw rod through hole (24211).
7. a kind of circuit breaker drawer base transmission device according to claim 6, it is characterised in that in the lock fit
It is extended with a coordinating block extension end (2422) on block (242) and in the side back to the square shaft (25), is stretched in the coordinating block
A first position limited section (24221) and a second position limited section (24222), the first position are formed in outlet (2422)
Limited section (24221) and second position limited section (24222) are matched with the latching device (26).
8. a kind of circuit breaker drawer base transmission device according to claim 1, it is characterised in that the transmission device (2)
It further include having a fixed plate (23), which is fixed on the bottom of the drawer chassis (1), and the screw rod (22) passes through
Fixed plate (23), the spring (27) are a pressure spring and are set on screw rod (22) that one end is resisted against on fixed plate (23),
The other end is resisted against on the locking structure (24).
9. a kind of circuit breaker drawer base transmission device according to claim 1, it is characterised in that structure on the square shaft (25)
At there are instruction section (251), the position protrusion (2511) for being raised in upper surface is formed in the upper surface of the instruction section (251), and
Instruction section (251) lower surface be formed be depressed in lower surface position recess (2512), position protrusion (2511) with it is described
First lock (261) matches, and position recess (2512) is matched with second lock (262), and position protrusion
(2511) and the quantity of position recess (2512) is respectively three, with three corresponding separation, test and connection positions.
10. a kind of circuit breaker drawer base transmission device according to claim 9, it is characterised in that first lock
(261) there are the first stop end (2611), first position to limit end (2612) and the first mounting hole (2613), the first mounting hole
(2613) empty set can rotate on the screw rod (22) and relative to screw rod (22), and first position limits also to be had on end (2612)
First position limits protrusion (26121)；There are second lock (262) the second stop end (2621), the second position to limit
(2622) and the second mounting hole (2623) are held, the second mounting hole (2623) empty set is on screw rod (22) and opposite screw rod (22) turn
Dynamic, the second position, which limits on end (2622), also there is the second position to limit protrusion (26221), and the lock replys structure
It (263) is tension spring, the first spring that one end connection first position limits on end (2612) is affiliated on hole (26122), and the other end connects
The second spring for connecing second position restriction end (2622) is affiliated on hole (26222).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710332209.1A CN108879451B (en) | 2017-05-12 | 2017-05-12 | A kind of circuit breaker drawer base transmission device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710332209.1A CN108879451B (en) | 2017-05-12 | 2017-05-12 | A kind of circuit breaker drawer base transmission device |
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| Publication Number | Publication Date |
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| CN108879451A true CN108879451A (en) | 2018-11-23 |
| CN108879451B CN108879451B (en) | 2019-10-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710332209.1A Active CN108879451B (en) | 2017-05-12 | 2017-05-12 | A kind of circuit breaker drawer base transmission device |
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| CN2569386Y (en) * | 2002-09-17 | 2003-08-27 | 常熟开关厂 | Safety padlock device of drawing out type braker |
| CN201066768Y (en) * | 2007-07-04 | 2008-05-28 | 常州新苑星电器有限公司 | Drawer push interlocking mechanism |
| CN101764370A (en) * | 2010-01-18 | 2010-06-30 | 无锡新宏泰电器科技股份有限公司 | Unlocking mechanism of draw-out circuit breaker |
| CN201910592U (en) * | 2010-12-21 | 2011-07-27 | 华仪电气股份有限公司 | Misoperation-proof mechanism |
| CN102280828A (en) * | 2010-06-12 | 2011-12-14 | 上海电科电器科技有限公司 | Tri-position interlocking device of drawer breaker |
| CN202586136U (en) * | 2012-04-17 | 2012-12-05 | 上海精翊电器有限公司 | Safety mechanism used for electrical industry |
| CN203166375U (en) * | 2013-03-26 | 2013-08-28 | 上海精翊电器有限公司 | Universal breaker drawer seat three-position locking device |
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2017
- 2017-05-12 CN CN201710332209.1A patent/CN108879451B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2569386Y (en) * | 2002-09-17 | 2003-08-27 | 常熟开关厂 | Safety padlock device of drawing out type braker |
| CN201066768Y (en) * | 2007-07-04 | 2008-05-28 | 常州新苑星电器有限公司 | Drawer push interlocking mechanism |
| CN101764370A (en) * | 2010-01-18 | 2010-06-30 | 无锡新宏泰电器科技股份有限公司 | Unlocking mechanism of draw-out circuit breaker |
| CN102280828A (en) * | 2010-06-12 | 2011-12-14 | 上海电科电器科技有限公司 | Tri-position interlocking device of drawer breaker |
| CN201910592U (en) * | 2010-12-21 | 2011-07-27 | 华仪电气股份有限公司 | Misoperation-proof mechanism |
| CN202586136U (en) * | 2012-04-17 | 2012-12-05 | 上海精翊电器有限公司 | Safety mechanism used for electrical industry |
| CN203166375U (en) * | 2013-03-26 | 2013-08-28 | 上海精翊电器有限公司 | Universal breaker drawer seat three-position locking device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108879451B (en) | 2019-10-08 |
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