CN107732742B - Drawer seat locking device of drawer type frame circuit breaker - Google Patents
Drawer seat locking device of drawer type frame circuit breaker Download PDFInfo
- Publication number
- CN107732742B CN107732742B CN201711088038.9A CN201711088038A CN107732742B CN 107732742 B CN107732742 B CN 107732742B CN 201711088038 A CN201711088038 A CN 201711088038A CN 107732742 B CN107732742 B CN 107732742B
- Authority
- CN
- China
- Prior art keywords
- plate
- locking
- drawer
- circuit breaker
- trigger piece
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 230000005540 biological transmission Effects 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 6
- 238000000926 separation method Methods 0.000 description 8
- 230000009286 beneficial effect Effects 0.000 description 5
- 230000005611 electricity Effects 0.000 description 4
- 238000002474 experimental method Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Classifications
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Trip Switchboards (AREA)
Abstract
The invention relates to the field of piezoelectric devices, in particular to a drawer seat locking device of a drawer type frame circuit breaker, which comprises a drawer base, a rotating bar arranged on one side of the drawer base and a sliding supporting plate connected with the rotating bar, wherein the rotating bar axially rotates to drive the sliding supporting plate to axially move along the rotating bar; the device comprises a sliding supporting plate, an indication plate and a first locking plate, wherein the sliding supporting plate is connected with the sliding supporting plate, the first locking plate is in locking fit with the indication plate, the moving direction of the first locking plate is perpendicular to the moving direction of the indication plate, a trigger piece is arranged between the indication plate and the first locking plate, one end of the trigger piece is in sliding fit with the indication plate, and the other end of the trigger piece is in limiting fit with the first locking plate; the drawer seat locking device of the drawer type frame circuit breaker has the advantages of simple structure and convenience in operation, provides a judging signal for switching the working position of the drawer type frame circuit breaker, and effectively avoids misoperation of the drawer type frame circuit breaker.
Description
Technical Field
The invention relates to the field of piezoelectric devices, in particular to a drawer seat locking device of a drawer type frame circuit breaker.
Background
The existing drawer type frame circuit breaker comprises a drawer seat and a circuit breaker body, wherein the circuit breaker body can be switched between 3 different working positions by moving on the drawer seat, and the connection position, the experimental position and the separation position are respectively adopted.
When the existing drawer type frame circuit breaker switches working positions, whether the circuit breaker body reaches a designated position is judged through an indication below the drawer seat, but under certain installation conditions, the observation is inconvenient, the user operation is inconvenient, the existing drawer type frame circuit breaker is free of a locking device, misoperation of a user or operation of personnel without related authorities is easy to occur, and normal use and electricity safety are affected.
Disclosure of Invention
The invention aims to overcome the defects of the prior art, and provides a drawer seat locking device of a drawer type frame circuit breaker, which has a simple structure and is convenient to operate, a judgment signal is provided for switching the working position of the drawer type frame circuit breaker, and misoperation of the drawer type frame circuit breaker is effectively avoided.
In order to achieve the above purpose, the invention adopts the following technical scheme:
A drawer seat locking device of a drawer type frame circuit breaker comprises a drawer base 1, a rotating bar 2 arranged on one side of the drawer base 1 and a sliding support plate 3 connected with the rotating bar 2, wherein the rotating bar 2 rotates axially to drive the sliding support plate 3 to move axially along the rotating bar 2;
the device further comprises an indication plate 10 connected with the sliding supporting plate 3 and a first locking plate 8 in locking fit with the indication plate 10, wherein the moving direction of the first locking plate 8 is perpendicular to the moving direction of the indication plate 10, a trigger piece 9 is arranged between the indication plate 10 and the first locking plate 8, one end of the trigger piece 9 is in sliding fit with the indication plate 10, and the other end of the trigger piece 9 is in limiting fit with the first locking plate 8;
When the lock is carried out, the rotating lever 2 rotates axially, the sliding supporting plate 3 and the indicating plate 10 are driven to move synchronously along the axial direction of the rotating lever 2, the triggering piece 9 is driven to release the limit fit between the first locking plate 8 and the triggering piece 9 in the moving process of the indicating plate 10, and the first locking plate 8 moves to the indicating plate 10 and locks the indicating plate 10; when unlocking, the first locking plate 8 is moved in a direction away from the indication plate 10, the first locking plate 8 and the indication plate 10 are unlocked, and the trigger piece 9 is in limit fit with the first locking plate 8 again.
Preferably, the indication board 10 is provided with a locking groove, and the first locking board 8 is provided with a locking arm 82 matched with the locking groove.
Preferably, the middle part of the trigger piece 9 is pivotally mounted on the drawer base 1, and comprises a first end of the trigger piece and a second end of the trigger piece, wherein the first end of the trigger piece is in sliding fit with the lower side of the indication board 10, and the second end of the trigger piece is in limiting fit with the first locking board 8.
Preferably, the trigger piece 9 has an L-shaped structure, and includes a trigger piece first plate 91 and a trigger piece second plate 90 connected to the trigger piece first plate 91, wherein the trigger piece first end is located on the upper side of the trigger piece first plate 91, and the free end of the trigger piece second plate 90 is a trigger piece second end.
Preferably, a trigger table 910 is disposed on the upper side of the trigger member first plate 91 of the trigger member 9, and the trigger table 910 is an arc-shaped table.
Preferably, the first locking plate 8 includes a first locking plate main plate 80 slidably connected to the drawer base 1, one end of the first locking plate main plate 80 is provided with a locking arm 82 matched with the locking slot of the indicator plate 10, a first locking plate clamping plate 81 connected to the first locking plate main plate 80 is provided below the locking arm 82, and the first locking plate clamping plate 81 is in limit fit with the second end of the trigger piece 9.
Preferably, the locking groove comprises a connecting locking groove 101, an experimental locking groove 102 and a separating locking groove 103 which are sequentially arranged on the upper portion of the indication board 10 side by side, the connecting locking groove 101, the experimental locking groove 102 and the separating locking groove 103 respectively correspond to the connecting position, the experimental position and the separating position of the circuit breaker body, and a transmission table 104 matched with the trigger piece 9 is respectively arranged between the connecting locking groove 101 and the experimental locking groove 102 and between the experimental locking groove 102 and the separating locking groove 103.
Preferably, a reset mechanism is further included in connection with the first locking plate 8, said reset mechanism driving the first locking plate 8 to slide away from the indicator plate 10.
Preferably, the reset mechanism comprises a reset rod 6, the reset rod 6 comprises a first end 63 and a second end 62, the first end 63 of the reset rod is movably connected with the first locking plate 8, the middle part of the reset rod 6 is rotatably arranged on the drawer base 1, the second end 62 of the reset rod is shifted, and the first locking plate 8 can slide in a direction far away from the indication plate 10.
Preferably, the second end 62 of the return lever is elastically connected to the drawer base 1 by a return spring 7.
Preferably, the drawer also comprises a second locking plate 5 movably connected with the second end 62 of the reset rod, the second locking plate 5 is slidably connected with the drawer base 1, and the first locking plate 8 and the second locking plate 5 can be respectively slid in opposite directions by pulling the second end 62 of the reset rod;
The rotating lever 2 comprises a rotating lever main body 20 connected with the sliding supporting plate 3 and a locking head arranged at one end of the rotating lever main body 20, a window is arranged at one end of the second locking plate 5, the window comprises an unlocking window 501 and a locking window 502 arranged at one side of the unlocking window 501, and the locking window 502 is matched with the locking head 21 to limit the axial rotation of the rotating lever 2.
Preferably, the cross section of the locking head 21 is regular polygon.
Preferably, the rotary bar further comprises a hand crank 4, wherein the hand crank 4 is in plug-in fit with the locking head 21 of the rotary bar 2 to drive the rotary bar 2 to axially rotate.
The invention relates to a drawer base locking device of a drawer type frame circuit breaker, which comprises a drawer base, a rotating lever, a sliding supporting plate, an indicating plate connected with the sliding supporting plate and a first locking plate in locking fit with the indicating plate, wherein the rotating lever axially rotates to drive the sliding supporting plate to move along the axial direction of the rotating lever; the drawer seat locking device of the drawer type frame circuit breaker provided by the invention gives out the signal indicating that the circuit breaker body reaches the designated position in a mechanical locking mode, can judge without observation of a user, is beneficial to improving the operation efficiency, further is beneficial to ensuring the positioning accuracy and reliability of the circuit breaker body, can prevent the position of the circuit breaker body from being changed due to misoperation of the user or operation of personnel without related authorities, effectively avoids safety accidents, and protects the electricity utilization safety of the user and the normal use of the circuit breaker. In addition, the drawer base locking device of the drawer type frame circuit breaker also comprises a reset rod, so that convenience is brought to unlocking of the drawer type frame circuit breaker, and the operation efficiency of a user is improved. The drawer base locking device of the drawer type frame circuit breaker also comprises a second locking plate, wherein the first locking plate is locked with the indicating plate, and meanwhile, the locking window of the second locking plate is locked with the locking head of the rotating lever, so that double locking is realized, the locking and positioning effects of the drawer base locking device of the drawer type frame circuit breaker are better and more reliable, the electric safety of a user is improved, and misoperation of the user is further prevented.
Drawings
FIG. 1 is a schematic view of an unlocked state of a drawer seat locking device of a drawer frame circuit breaker of the present invention;
FIG. 2 is another schematic view of an unlocked state of a drawer seat locking device of the drawer frame circuit breaker of the present invention;
FIG. 3 is a schematic view of the assembled structure of the first locking plate and trigger of the present invention;
FIG. 4 is a schematic view of the assembled structure of the indicator plate, trigger and first locking plate of the present invention;
FIG. 5 is a schematic view of the structure of the portion A of FIG. 2 according to the present invention
FIG. 6 is a schematic view showing a locked state structure of a drawer base locking device of the drawer type frame circuit breaker of the present invention;
fig. 7 is a schematic view of the structure of the portion B of fig. 6 according to the present invention.
Detailed Description
Embodiments of the drawer seat locking apparatus of the drawer-type frame circuit breaker of the present invention are further described below with reference to the examples shown in fig. 1-7. The drawer seat locking device of the drawer type frame circuit breaker of the present invention is not limited to the description of the following embodiments.
The invention relates to a drawer seat locking device of a drawer type frame circuit breaker, which comprises a drawer base 1, a rotating bar 2 arranged on one side of the drawer base 1 and a sliding support plate 3 connected with the rotating bar 2, wherein the sliding support plate 3 is connected with a circuit breaker body, and the rotating bar 2 axially rotates to drive the sliding support plate 3 to axially move along the rotating bar 2;
The device further comprises an indication plate 10 connected with the sliding supporting plate 3 and a first locking plate 8 in locking fit with the indication plate 10, wherein the moving direction of the first locking plate 8 is perpendicular to the moving direction of the indication plate 10, a trigger piece 9 is arranged between the indication plate 10 and the first locking plate 8, one end of the trigger piece 9 is in sliding fit with the indication plate 10, and the other end of the trigger piece 9 is in limiting fit with the first locking plate 8;
When in locking, the rotating bar 2 axially rotates to drive the sliding supporting plate 3 and the indicating plate 10 to synchronously move along the axial direction of the rotating bar 2, and in the moving process of the indicating plate 10, the driving trigger piece 9 releases the limit fit with the first locking plate 8, and the first locking plate 8 moves towards the indicating plate 10 and locks the indicating plate 10; when unlocking, the first locking plate 8 is moved in a direction away from the indication plate 10, the first locking plate 8 and the indication plate 10 are unlocked, and the trigger piece 9 is in limit fit with the first locking plate 8 again.
The drawer type frame circuit breaker comprises a drawer seat and a circuit breaker body, wherein the circuit breaker body can be switched between 3 different working positions by sliding on the drawer seat, and the connection position, the experimental position and the separation position are respectively adopted. When the existing drawer type frame circuit breaker switches working positions, whether the circuit breaker body reaches a designated position is judged through an indication below the drawer seat, but under certain installation conditions, the observation is inconvenient, the user operation is inconvenient, the existing drawer type frame circuit breaker is free of a locking device, misoperation of a user or operation of personnel without related authorities is easy to occur, and normal use and electricity safety are affected.
The invention relates to a drawer seat locking device of a drawer type frame circuit breaker, which comprises a drawer base, a rotating lever, a sliding supporting plate, an indicating plate, a trigger piece and a locking piece, wherein the rotating lever axially rotates to drive the sliding supporting plate to move along the axial direction of the rotating lever; the drawer seat locking device of the drawer type frame circuit breaker provided by the invention gives out the signal indicating that the circuit breaker body reaches the designated position in a mechanical locking mode, can judge without observation of a user, is beneficial to improving the operation efficiency, further is beneficial to ensuring the positioning accuracy and reliability of the circuit breaker body, can prevent the position of the circuit breaker body from being changed due to misoperation of the user or operation of personnel without related authorities, effectively avoids safety accidents, and protects the electricity utilization safety of the user and the normal use of the circuit breaker. It should be noted that the designated positions refer to a connection position, an experimental position, and a disconnection position of the breaker body.
The drawer seat locking device of the drawer type frame circuit breaker of the present invention will be further described with reference to the drawings and the specific embodiments of the present invention.
The drawer seat locking device of the drawer type frame circuit breaker of the present invention includes a drawer base 1, a rotating bar 2 disposed at the middle of the upper side of the drawer base 1, a sliding tray 3 drivingly connected to the rotating bar 2, an indication plate 10 disposed at the right end of the sliding tray 3 and connected thereto, a first locking plate 8 disposed at the right side of the indication plate 10 and slidably connected to the drawer base 1, and a trigger 9 disposed between the indication plate 10 and the first locking plate 8.
In the direction shown in fig. 1, the rotating bar 2 can axially rotate, the rotating bar 2 can be driven to rotate manually or electrically, the rotating bar 2 comprises a rotating bar main body 20, the rotating bar main body 20 is in threaded connection with the sliding support plate 3, and the sliding support plate 3 can be driven to move along the axial direction of the rotating bar 2 by axially rotating the rotating bar 2, namely, the forward/backward movement of the sliding support plate 3 is realized; the left side of the front end of the indication plate 10 is vertically connected with the right end of the sliding supporting plate 3, so that synchronous movement of the front end and the right end is realized, and a locking groove matched with the first locking plate 8 is formed in the upper part of the indication plate 10; the first locking plate 8 can horizontally slide left and right on the upper side of the drawer base 1 along the direction vertical to the axial direction of the rotating lever 2, and the left end of the first locking plate 8 is matched with a locking groove of the indicating plate 10; the trigger piece 9 is arranged between the indication plate 10 and the first locking plate 8 and is positioned below the first locking plate 8, the trigger piece 9 comprises a trigger piece first end which is in sliding fit with the lower side of the indication plate 10 and a trigger piece second end which is in contact fit with the first locking plate 8, and a trigger piece rotating shaft is arranged in the middle of the trigger piece 9.
Preferably, as shown in fig. 2, the rotating lever 2 includes a rotating lever body 20 and a locking head 21 disposed at one end of the rotating lever body 20 and engaged with the second locking plate 5, and the cross section of the locking head 21 is a regular polygon.
Preferably, as shown in fig. 2 and 4, the indication board 10 includes an indication board main body 100, a locking slot provided at an upper portion of the indication board main body 100, and a transmission stage 104 provided at a lower side of the indication board main body 100 and engaged with the trigger 9, the locking slot includes a connection locking slot 101, an experiment locking slot 102, and a separation locking slot 103 sequentially arranged from front to back, which are respectively in one-to-one correspondence with a connection position, an experiment position, and a separation position of the circuit breaker main body, one transmission stage 104 is provided between the connection locking slot 101 and the experiment locking slot 102, and is a first transmission stage, and one transmission stage 104 is provided between the experiment locking slot and the separation locking slot 103, and is a second transmission stage.
Preferably, as shown in fig. 3, the first locking plate 8 includes a first locking plate main plate 80, a locking arm 82 disposed on an upper portion of a left end of the first locking plate main plate 80, and a first locking plate clamping plate 81 disposed on a rear side of the left end of the first locking plate main plate 80, the first locking plate main plate 80 is slidably connected to the drawer base 1, the locking arm 82 is in clamping engagement with a locking slot of the indicator plate 10, and a left end of the first locking plate clamping plate 81 is in contact engagement with a second end of the trigger member 9. The locking arms 82 of the first locking plate 8 are snapped into the locking grooves of the indicator plate 10 to lock in the designated position, but of course locking can also be performed by other structures, such as providing protrusions on the side edges or protrusions on the side walls of the indicator plate 10 to lock the indicator plate 10 by the first locking plate 8.
Preferably, as shown in fig. 1, the first locking plate 8 is elastically connected to the drawer base 1 through a first locking plate return spring (not shown in the drawing), after the first locking plate 8 is disengaged from the trigger piece 9, the first locking plate return spring drives the first locking plate 8 to move towards the indicator plate 10, and the first locking plate 8 is manually pulled rightward to be in the original position, so that the first locking plate 8 is engaged with the trigger piece 9 again.
Preferably, as shown in fig. 3, the middle part of the trigger piece 9 is pivotally mounted on the protruding rib of the drawer base 1, the trigger piece 9 is in an L-shaped structure, and includes a trigger piece first plate 91 and a trigger piece second plate 90 connected with the trigger piece first plate 91 at right angles, a trigger piece shaft hole 900 is disposed in the middle part of the trigger piece second plate 90, the trigger piece shaft hole 900 is in running fit with the trigger piece rotating shaft, the upper side of the trigger piece first plate 91 is in sliding fit with the lower side of the indication board 10, the right end of the trigger piece second plate 90 is in contact fit with the first locking plate clamping plate 81 of the first locking plate 8, and a second end face 901 is disposed at the right end of the trigger piece second plate 90. Preferably, as shown in fig. 3, a trigger table 910 is disposed on the upper side of the first plate 91 of the trigger piece, where the trigger table 910 is an arc-shaped table, so that friction between the trigger piece 9 and the indicator board 10 can be effectively reduced, and user operation is facilitated.
It should be noted that the structure of the trigger member 9 is not limited to the above description, and other structures may be adopted, for example, the trigger member 9 includes only the trigger member second plate 90, the upper left end of the trigger member second plate 90 is slidably engaged with the lower side of the indication plate 10, and the right end of the trigger member second plate 90 is in contact engagement with the first locking plate catch plate 8 of the first locking plate 8, so long as the trigger member 9 can satisfy the function of limiting the first locking plate 8 in the unlocked state of the present invention and releasing the first locking plate 8 in the locked state of the present invention.
The drawer seat locking device of the drawer type frame circuit breaker comprises two working states, namely a locking state and an unlocking state.
As shown in fig. 1, in the unlocked state of the present invention, the assembly and the matching relationship of each component are described in the above, and will not be repeated. As shown in fig. 6, in the locked state of the present invention, the locking arm 82 of the first locking plate 8 is clamped in the locking slot of the indication plate 10, the first end of the trigger piece 9 is located below the indication plate 10, and the second end of the trigger piece 9 is located above the first locking plate clamping plate 81.
As shown in fig. 6, in the drawer seat locking device of the drawer type frame circuit breaker according to the present invention, when the drawer seat locking device is unlocked, the first locking plate 8 slides rightward, the locking arm 82 of the first locking plate 8 is disengaged from the locking groove of the indication plate 10, and when the first locking plate 8 moves to the original position, the trigger 9 automatically rotates clockwise around the trigger rotating shaft, the first end of the trigger moves upward to contact with the lower side surface of the indication plate 10, the second end of the trigger moves downward to contact with the first locking plate clamping plate 81 of the first locking plate 8, and the first locking plate clamping plate 81 is limited, thereby unlocking is completed. The second end of the trigger member 9 may rely on gravity to rotate the trigger member 9 clockwise, although a torsion spring may be provided on the trigger member 9 to rotate the trigger member 9 clockwise, or in some other manner.
When the drawer seat locking device of the drawer type frame circuit breaker is switched to the working position, for example, the drawer type frame circuit breaker is switched to the separation position from the experimental position, and the working process is as follows:
(1) Firstly, unlocking a drawer seat locking device of the drawer type frame circuit breaker, wherein the unlocking process is as described above;
(2) The unlocked state is shown in fig. 2, the rotating lever 2 rotates axially, the sliding support plate 3 and the indicating plate 10 are driven to move forward, as shown in fig. 4, when the second transmission platform of the indicating plate 10 is matched with the trigger platform 910 of the trigger piece 9, the first end of the trigger piece 9 moves downwards, and meanwhile, the second end of the trigger piece moves upwards to the upper part of the first locking plate clamping plate 81 of the first locking plate 8, the first locking plate 8 starts to slide to the indicating plate 10 until the left end of the locking arm 82 abuts against the indicating plate 10, the rotating lever 2 continues rotating axially, and when the breaker body reaches the separation position, the locking arm 82 is matched with the separation locking groove 103 in a clamping way, and one-time working position switching is completed.
Preferably, as shown in fig. 1 and 2, the drawer seat locking device of the drawer type frame circuit breaker of the invention further comprises a reset mechanism, the reset mechanism comprises a reset lever 6, the reset lever 6 comprises a reset lever first end 63 and a reset lever second end 62, a reset lever shaft hole 60 is arranged in the middle of the reset lever 6, a reset lever rotating shaft 61 in running fit with the reset lever shaft hole 60 is arranged on the drawer base 1, the first end 63 of the reset lever is movably connected with a first locking plate main plate 80 of the first locking plate 8, the second end 62 of the reset lever is elastically connected with the drawer base 1 through a reset spring 7, and the first locking plate 8 can be driven to move rightwards through the first end 63 of the reset lever when the reset lever 62 is shifted leftwards, so that unlocking of the invention is realized, convenience is provided for user operation, and the operation efficiency is improved. It should be noted that the restoring rod 6 may also be elastically connected to the drawer base 1 by a torsion spring. Of course, the reset mechanism can also be a button arranged on one side of the drawer seat and connected with the first locking plate 8, or other structures, so that the first locking plate 8 can reciprocate to be in locking fit with the indicating plate 10.
Preferably, as shown in fig. 3 and 4, the left end of the first locking plate main plate 80 of the first locking plate 8 is provided with a first assembling hole 801 matched with the first end 63 of the reset lever, the first end 63 of the reset lever is inserted into the first assembling hole 801 and protrudes to one side of the first locking plate main plate 80, and a movable allowance is arranged between the first end 63 of the reset lever and the first assembling hole 801.
Preferably, as shown in fig. 1,2 and 6, the drawer seat locking device of the drawer type frame circuit breaker of the present invention further comprises a second locking plate 5 arranged in parallel at the front side of the first locking plate 8, the second locking plate 5 is slidably connected with the drawer base 1, a second assembly hole is arranged at the right end of the second locking plate 5, a movable allowance is arranged between the second assembly hole and a second end 62 of a reset lever, the second end 62 of the reset lever is arranged at the front side of the second locking plate 5 in a protruding manner through the second assembly hole, a window is arranged at the left end of the second locking plate 5, the window comprises an unlocking window 501 and a locking window 502 arranged at the left side of the unlocking window 501 and communicated with the unlocking window, the locking window 502 is a regular polygon window with one side open, the opening of the locking window 502 is communicated with the unlocking window 501, the locking head 21 of the rotating lever 2 is matched with the locking head 502 to limit the axial rotation of the rotating lever 2, and the locking head 21 can rotate freely when being positioned in the unlocking window 501.
When the first locking plate 8 locks the indication plate 10 in operation, the reset rod 6 drives the second locking plate 5 to act, so that the locking window 502 is matched with the locking head 21 of the rotating lever 2; when the first locking plate 8 and the indicating plate 10 are unlocked, the second locking plate 5 is driven to operate by the reset lever 6, so that the locking window 502 is disengaged from the locking head 21 of the rotating lever 2, and the locking head 21 is positioned in the unlocking window 501 and can rotate freely. The first locking plate 8 is locked with the indicating plate 10, and the locking window 502 of the second locking plate 5 is locked with the locking head 21 of the rotating lever 2, so that the locking and positioning effects of the drawer seat locking device of the drawer type frame circuit breaker are better and more reliable, the electric safety of a user is improved, and misoperation of the user is further prevented.
It should be noted that, in an actual product, because the axial thrust generated by the rotation of the rotating lever 2 is larger, if the sliding support plate 3 is locked only by the cooperation of the first locking plate 8 and the indicating plate 10, the first locking plate 8 and the indicating plate 10 need to have larger size thickness and rigidity, while in the above preferred embodiment, the locking window 502 of the second locking plate 5 can effectively lock the locking head 21 of the rotating lever 2 through the cooperation of the second locking plate 5 and the rotating lever 2, the first can correspondingly reduce the size thickness and rigidity of the first locking plate 8 and the indicating plate 10, so that the materials of the first locking plate 8 and the indicating plate 10 are conveniently obtained, and the second is beneficial to ensuring the action characteristics of the first locking plate 8, and also, when the locking arm 82 of the first locking plate 8 is matched with the locking groove of the indicating plate 10, because the cross section of the locking head 21 is a regular polygon and the locking window 502 is a regular polygon window, the locking head 21 of the rotating lever 2 needs to be rotated by a certain angle (a small angle) so as to complete the cooperation of the locking head 21 and the locking window 502 of the second locking plate 5, therefore, the first locking plate 8 needs to have certain size and rigidity of the first locking plate 8, the first locking plate 8 need to be matched with the first locking plate 8, the first locking plate 10 and the second locking plate 10 need not to be precisely matched with the size and the first locking plate 8, and the size of the indicating plate 10 need to be precisely reduced, and the size of the first locking plate 8 and the indicating plate 10 need to be precisely matched with the size and the first locking plate 8, and the size of the first locking plate 8 can be reduced, and the size of the accurate device can be required to be reduced.
Preferably, the drawer seat locking device of the drawer type frame circuit breaker further comprises a handle 4, and the handle 4 is in plug-in fit with the locking head 21 of the rotating lever 2 to drive the rotating lever 2 to axially rotate.
The foregoing is a further detailed description of the invention in connection with the preferred embodiments, and it is not intended that the invention be limited to the specific embodiments described. It will be apparent to those skilled in the art that several simple deductions or substitutions may be made without departing from the spirit of the invention, and these should be considered to be within the scope of the invention.
Claims (11)
1. A drawer seat locking device of a drawer type frame circuit breaker comprises a drawer base (1), a rotating bar (2) arranged on one side of the drawer base (1) and a sliding support plate (3) connected with the rotating bar (2), wherein the rotating bar (2) rotates axially to drive the sliding support plate (3) to move along the axial direction of the rotating bar (2);
The method is characterized in that: the device further comprises an indication plate (10) connected with the sliding supporting plate (3) and a first locking plate (8) in locking fit with the indication plate (10), wherein the moving direction of the first locking plate (8) is perpendicular to the moving direction of the indication plate (10), a trigger piece (9) is arranged between the indication plate (10) and the first locking plate (8), one end of the trigger piece (9) is in sliding fit with the indication plate (10), and the other end of the trigger piece is in limiting fit with the first locking plate (8);
When in locking, the rotating lever (2) rotates axially, the sliding support plate (3) and the indicating plate (10) are driven to move synchronously along the axial direction of the rotating lever (2), the triggering piece (9) is driven to release the limit fit between the first locking plate (8) and the triggering piece (9) in the moving process of the indicating plate (10), and the first locking plate (8) moves to the indicating plate (10) and locks the indicating plate (10); when the lock is unlocked, the first locking plate (8) is moved in a direction away from the indication plate (10), the first locking plate (8) and the indication plate (10) are unlocked, and the trigger piece (9) is in limit fit with the first locking plate (8) again;
The drawer seat locking device further comprises a reset mechanism connected with the first locking plate (8), the reset mechanism comprises a reset rod (6), the reset rod (6) comprises a first reset rod end (63) and a second reset rod end (62), the first reset rod end (63) is movably connected with the first locking plate (8), the middle part of the reset rod (6) is rotatably arranged on the drawer base (1), the second reset rod end (62) is shifted, and the first locking plate (8) can slide in a direction far away from the indication plate (10); the drawer seat locking device further comprises a second locking plate (5) movably connected with the second end (62) of the reset rod, the second locking plate (5) is slidably connected with the drawer base (1), and when the first locking plate (8) locks the indication plate (10), the second locking plate (5) is driven to act through the reset rod (6) so that the second locking plate (5) locks the rotating lever (2).
2. The drawer base locking device of a drawer frame circuit breaker of claim 1, wherein: the indicating plate (10) is provided with a locking groove, and the first locking plate (8) is provided with a locking arm (82) matched with the locking groove.
3. The drawer base locking device of a drawer frame circuit breaker of claim 1, wherein: the middle part pivot of trigger piece (9) is installed on drawer base (1), including trigger piece first end and trigger piece second end, trigger piece first end and pilot board (10) lower side sliding fit, trigger piece second end and first locking plate (8) spacing cooperation.
4. A drawer-seat locking device for a drawer-frame circuit breaker according to claim 3, characterized in that: the trigger piece (9) is of an L-shaped structure and comprises a trigger piece first plate (91) and a trigger piece second plate (90) connected with the trigger piece first plate (91), wherein the trigger piece first end is arranged on the upper side of the trigger piece first plate (91), and the free end of the trigger piece second plate (90) is the trigger piece second end.
5. The drawer base locking device of a drawer frame circuit breaker of claim 3 or 4, wherein: a trigger table (910) is arranged on the upper side of a trigger piece first plate (91) of the trigger piece (9), and the trigger table (910) is an arc-shaped table.
6. The drawer base locking device of a drawer frame circuit breaker of claim 1, wherein: the first locking plate (8) comprises a first locking plate main plate (80) which is connected with the drawer base (1) in a sliding mode, one end of the first locking plate main plate (80) is provided with a locking arm (82) matched with a locking groove of the indicating plate (10), a first locking plate clamping plate (81) which is connected with the first locking plate main plate (80) is arranged below the locking arm (82), and the first locking plate clamping plate (81) is in limiting fit with the second end of the triggering piece (9).
7. The drawer base locking device of a drawer frame circuit breaker of claim 2, wherein: the locking groove comprises a connecting locking groove (101), an experimental locking groove (102) and a separating locking groove (103) which are sequentially arranged on the upper portion of the indicating plate (10) side by side, wherein the connecting locking groove (101), the experimental locking groove (102) and the separating locking groove (103) respectively correspond to the connecting position, the experimental position and the separating position of the circuit breaker body, a transmission table (104) matched with the trigger piece (9) is respectively arranged between the connecting locking groove (101) and the experimental locking groove (102) and between the experimental locking groove (102) and the separating locking groove (103).
8. The drawer base locking device of a drawer frame circuit breaker of claim 1, wherein: the second end (62) of the reset rod is elastically connected with the drawer base (1) through a reset spring (7).
9. The drawer base locking device of a drawer frame circuit breaker of claim 1, wherein: the second end (62) of the toggle reset rod can enable the first locking plate (8) and the second locking plate (5) to slide in opposite directions respectively;
The rotating lever (2) comprises a rotating lever main body (20) connected with the sliding supporting plate (3) and a locking head arranged at one end of the rotating lever main body (20), one end of the second locking plate (5) is provided with a window, the window comprises an unlocking window (501) and a locking window (502) arranged at one side of the unlocking window (501), and the locking window (502) is matched with the locking head (21) to limit the axial rotation of the rotating lever (2).
10. The drawer base locking device of a drawer frame circuit breaker of claim 9, wherein: the cross section of the locking head (21) is a regular polygon.
11. The drawer base locking device of a drawer frame circuit breaker of claim 1, wherein: the hand crank (4) is in plug-in fit with the locking head (21) of the rotating lever (2), and the rotating lever (2) is driven to axially rotate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711088038.9A CN107732742B (en) | 2017-11-07 | 2017-11-07 | Drawer seat locking device of drawer type frame circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711088038.9A CN107732742B (en) | 2017-11-07 | 2017-11-07 | Drawer seat locking device of drawer type frame circuit breaker |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107732742A CN107732742A (en) | 2018-02-23 |
| CN107732742B true CN107732742B (en) | 2024-04-19 |
Family
ID=61222847
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711088038.9A Active CN107732742B (en) | 2017-11-07 | 2017-11-07 | Drawer seat locking device of drawer type frame circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107732742B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109066440A (en) * | 2018-09-18 | 2018-12-21 | 德力西电气有限公司 | A kind of drawer chassis of frame-type circuit breaker |
| CN113889892A (en) * | 2020-07-02 | 2022-01-04 | 浙江正泰电器股份有限公司 | Universal circuit breaker |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4004113A (en) * | 1975-04-14 | 1977-01-18 | General Electric Company | Drawout apparatus for electrical switchboards |
| CN1402397A (en) * | 2002-09-17 | 2003-03-12 | 常熟开关厂 | Draw circuit breaker locking device |
| CN2632900Y (en) * | 2003-06-17 | 2004-08-11 | 潘敏 | Propelling interlocking mechanism for low-voltage drawer valve cabinet |
| CN101505039A (en) * | 2008-02-05 | 2009-08-12 | 西门子公司 | Position locking apparatus for draw-out type circuit breaker |
| CN201616611U (en) * | 2009-12-31 | 2010-10-27 | 李建民 | Drawer-breaker three-position locking device |
| CN207651911U (en) * | 2017-11-07 | 2018-07-24 | 浙江正泰电器股份有限公司 | The drawer chassis locking system of drawer type frame breaker |
-
2017
- 2017-11-07 CN CN201711088038.9A patent/CN107732742B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4004113A (en) * | 1975-04-14 | 1977-01-18 | General Electric Company | Drawout apparatus for electrical switchboards |
| CN1402397A (en) * | 2002-09-17 | 2003-03-12 | 常熟开关厂 | Draw circuit breaker locking device |
| CN2632900Y (en) * | 2003-06-17 | 2004-08-11 | 潘敏 | Propelling interlocking mechanism for low-voltage drawer valve cabinet |
| CN101505039A (en) * | 2008-02-05 | 2009-08-12 | 西门子公司 | Position locking apparatus for draw-out type circuit breaker |
| CN201616611U (en) * | 2009-12-31 | 2010-10-27 | 李建民 | Drawer-breaker three-position locking device |
| CN207651911U (en) * | 2017-11-07 | 2018-07-24 | 浙江正泰电器股份有限公司 | The drawer chassis locking system of drawer type frame breaker |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107732742A (en) | 2018-02-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107732742B (en) | Drawer seat locking device of drawer type frame circuit breaker | |
| CN107977051B (en) | Handle locking device and electronic system with same | |
| EP3333865B1 (en) | Circuit breaker energy storage operation mechanism | |
| CN211173483U (en) | Electronic padlock | |
| EP3229257B1 (en) | Circuit breaker locking device | |
| CN110661197A (en) | Drawer of switch cabinet | |
| CN210723927U (en) | Small unit drawer is with impeling combined floodgate interlocking device and combined floodgate interlocking unit | |
| CN109273302B (en) | Electric operating mechanism of circuit breaker | |
| EP3333874B1 (en) | Circuit breaker interlocking apparatus | |
| CN107546630B (en) | Interlocking device for drawers of switch cabinet | |
| CN212783325U (en) | Moulded case circuit breaker with electric operating device | |
| CN201383464Y (en) | Mechanical locking misoperation prevention interlocking device | |
| CN108631203B (en) | Draw-out type power distribution cabinet and auxiliary switch triggering mechanism on draw-out type power distribution cabinet | |
| CN110571696B (en) | Drawer for low-voltage switch cabinet | |
| CN207651911U (en) | The drawer chassis locking system of drawer type frame breaker | |
| CN211701222U (en) | Hand interlock's linkage release mechanism and hand interlock | |
| CN210897048U (en) | Novel emergency brake separating device | |
| CN217642367U (en) | Unlocking structure of drawer seat | |
| CN210016166U (en) | Interlocking device for switch cabinet and breaker used for switch cabinet | |
| CN215118700U (en) | Padlock assembly of energy storage type operating mechanism | |
| CN216530189U (en) | Interlocking device for drawer bin of low-voltage switch cabinet | |
| CN217388021U (en) | Combined hand pulling mechanism | |
| CN211701214U (en) | Hand-operated interlocking device and hand-operated mechanism thereof | |
| CN210575619U (en) | Combined key and automatic walking device with same | |
| CN219436494U (en) | Drawer for a switchgear cabinet and switchgear cabinet |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |