CN114597084A - Self-locking mechanism for isolating switch - Google Patents
Self-locking mechanism for isolating switch Download PDFInfo
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- CN114597084A CN114597084A CN202210199586.3A CN202210199586A CN114597084A CN 114597084 A CN114597084 A CN 114597084A CN 202210199586 A CN202210199586 A CN 202210199586A CN 114597084 A CN114597084 A CN 114597084A
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- locking
- plate
- switch operating
- operating shaft
- isolating switch
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- 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
- H01H9/26—Interlocking, locking, or latching mechanisms for interlocking two or more switches
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H31/00—Air-break switches for high tension without arc-extinguishing or arc-preventing means
- H01H31/02—Details
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- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
- Switch Cases, Indication, And Locking (AREA)
- Breakers (AREA)
Abstract
The invention discloses a self-locking mechanism for an isolating switch, which relates to the field of isolating switches and comprises a bottom plate, an isolating switch operating shaft, a locking plate and a locking mechanism, wherein the bottom plate is provided with a locking hole; a driving component: one end of the isolating switch is connected with the isolating switch operating shaft, and the other end of the isolating switch operating shaft is connected with the locking plate; the elastic locking assembly: which is arranged on the bottom plate; and the disconnecting stroke of the isolating switch operating shaft drives the locking plate to slide to a locking position in the horizontal direction of the bottom plate, and then the elastic locking assembly carries out self-locking on the locking plate. According to the self-locking mechanism for the disconnecting switch, the driving assembly is driven to move through the closing stroke of the disconnecting switch operating shaft, the driving assembly drives the locking plate to move towards the circuit breaker switch operating handle, when the locking plate abuts against the circuit breaker switch operating handle, the elastic locking assembly is just enabled to lock and limit the locking plate, and the disconnecting switch operating shaft is prevented from being driven to be closed under the condition that the circuit breaker switch operating handle rotates wakelessly.
Description
Technical Field
The invention relates to the technology of isolating switches, in particular to a self-locking mechanism for an isolating switch.
Background
The isolating switch has obvious disconnection points, can realize an isolating function and is mainly used for equipment maintenance. However, the isolating switch does not have a breaking function, can not be switched on and off with a load, and can be switched on and off only under the condition that the load is disconnected; the circuit breaker can normally open and close and break the load and is used for controlling the equipment, but the circuit breaker has no obvious disconnection point, can not visually judge whether a loop is disconnected or not, and is not suitable for overhauling the equipment.
As in the applicant's prior application: the circuit breaker and isolation misoperation prevention interlocking structure comprises a bottom plate and an isolation switch operating shaft, wherein an execution cam is clamped on the outer wall of the isolation switch operating shaft, a fixed shaft is welded at the left part of the inner cavity front wall of the bottom plate, a locking plate is clamped on the outer wall of the fixed shaft and is positioned at the rear part of the execution cam, and a baffle is fixedly arranged at the left part of the front wall of the locking plate; wherein, carry on spacingly by the baffle to circuit breaker isolator operating axis through the lock plate, realize then that circuit breaker and isolation prevent the maloperation chain.
The prior art including the above patent has the following disadvantages, one of which is that one end of the locking plate is hinged with the cam, and the locking plate slides on the bottom plate through the pin shaft, so that the locking plate swings to a small extent in the process of moving on the bottom plate in the process of rotating the disconnecting switch operating shaft, and further the locking plate shifts in the process of abutting against the breaker switch operating handle, and further the locking plate shifts in the process of limiting the locking plate and the breaker switch operating handle with small probability, and secondly, if an operator forcibly opens the circuit breaker in the process of abutting against the breaker switch operating handle, the opening action of the circuit breaker makes the locking plate strongly extruded, and further the locking plate moves, so that the transmission structure forces the disconnecting switch to be closed, and at the moment, the circuit breaker and the disconnecting switch are both in the closed state, it is difficult to ensure the personal safety of the maintenance personnel.
Disclosure of Invention
The invention aims to provide a self-locking mechanism for an isolating switch, which aims to overcome the defects in the prior art.
In order to achieve the above purpose, the invention provides the following technical scheme:
a self-locking mechanism for an isolating switch comprises a bottom plate, an isolating switch operating shaft and a locking plate, wherein the locking plate is horizontally connected to the bottom plate in a sliding manner; also includes; a driving component: one end of the isolating switch is connected with the isolating switch operating shaft, and the other end of the isolating switch operating shaft is connected with the locking plate; the elastic locking assembly: which is arranged on the bottom plate; the driving assembly drives the locking plate to horizontally slide on the bottom plate; and the disconnecting stroke of the isolating switch operating shaft drives the locking plate to slide to a locking position in the horizontal direction of the bottom plate, and then the elastic locking assembly carries out self-locking on the locking plate.
Preferably, the bottom plate is slidably connected with an elastic locking assembly, and the elastic locking assembly reciprocates in the vertical direction of the bottom plate.
Preferably, the elastic locking assembly comprises a locking block connected to the bottom plate in a sliding manner, and the locking block is connected with the bottom plate through a second spring; and the locking block is provided with a bolt.
Preferably, the locking device further comprises an insertion part matched with the elastic locking assembly, the insertion part comprises a wedge-shaped protruding part arranged on the locking plate, and an insertion hole matched with the bolt is formed in the wedge-shaped protruding part.
Preferably, the driving assembly comprises a cam which is coaxially and fixedly connected with the disconnecting switch operating shaft, a transmission rod is hinged to the cam, and one end of the transmission rod is hinged to the locking plate.
Preferably, the telescopic device further comprises an elastic telescopic pipe, one end of the elastic telescopic pipe is hinged with the locking plate and the transmission rod respectively, and the other end of the elastic telescopic pipe is fixedly connected with the driving shaft.
Preferably, still include the unblock subassembly, the unblock subassembly is including setting up start unit and the unit of upwarping on isolator operating axis, the one end and the lock board of the unit of upwarping are connected, and the other end and the start unit of upwarping the unit.
Preferably, the starting unit comprises a starting shaft connected to the disconnecting switch operating shaft in a sliding manner and an annular seat sleeved on the disconnecting switch operating shaft, and the annular seat is abutted to the starting shaft.
Preferably, the raising unit comprises a second hinge rod, the middle of the second hinge rod is hinged to the bottom plate, one end of the second hinge rod is movably connected with the elastic locking assembly, and the other end of the second hinge rod is movably connected with the annular seat.
Preferably, the isolating switch operating shaft has a hollow cylindrical structure with a through displacement port, the isolating switch operating shaft is circumferentially and penetratingly connected with a plurality of waist-shaped sliding chutes at the circumferential side, the tail end of the starting shaft is fixedly connected with a plurality of convex columns in a surrounding manner, and each convex column is always in a state of abutting against the end face of the annular seat.
In the technical scheme, the self-locking mechanism for the disconnecting switch provided by the invention has the advantages that the driving assembly is driven to move through the closing stroke of the disconnecting switch operating shaft, the driving assembly drives the locking plate to move towards the circuit breaker switch operating handle, when the locking plate abuts against the circuit breaker switch operating handle, the elastic locking assembly is just enabled to lock and limit the locking plate, then the locking plate can accurately abut against the disconnecting switch operating shaft, the elastic locking assembly is further driven to limit the locking plate, and the disconnecting switch operating shaft is prevented from being driven to be closed under the condition that the circuit breaker switch operating sober handle rotates.
Drawings
In order to more clearly illustrate the embodiments of the present application or technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present invention, and other drawings can be obtained by those skilled in the art according to the drawings.
Fig. 1 is a schematic overall structural diagram of a self-locking mechanism for an isolating switch according to an embodiment of the present invention;
fig. 1a is a schematic diagram of an overall structure of a prior art isolating switch structure according to an embodiment of the present invention
FIG. 2 is a schematic view of an installation structure of a locking block according to an embodiment of the present invention;
FIG. 3 is a schematic view of an installation structure of a latch plate according to an embodiment of the present invention;
FIG. 4 is a schematic structural diagram of a latch plate latch according to an embodiment of the present invention;
FIG. 5 is a schematic view of an unlocking structure of a locking plate according to an embodiment of the present invention
Fig. 6 is a schematic structural diagram of an operating shaft of a disconnecting switch according to an embodiment of the present invention;
FIG. 7 is a schematic structural diagram of a base plate according to an embodiment of the present invention;
FIG. 8 is a schematic structural diagram of a latch plate according to an embodiment of the present invention;
fig. 9 is a schematic structural diagram of a locking block according to an embodiment of the present invention.
Description of reference numerals:
1. a base plate; 1.01, a first chute; 1.02, a second chute; 1.1, a support plate; 1.2, isolating a switch operating shaft; 1.20, starting a shaft; 1.201, convex column; 1.21, an annular seat; 1.22, a cam; 1.23, a transmission rod; 1.24, a waist-shaped chute; 1.31, a sliding column; 1.32, a first spring; 1.33, sleeve; 1.4, a locking plate; 1.40, inserting holes; 1.41, connecting blocks; 1.51, a first hinge lever; 1.52, a second hinge lever; 1.53, a third hinge rod; 1.6, a locking block; 1601. a bolt; 1.61, second spring.
Detailed Description
In order to make the technical solutions of the present invention better understood, those skilled in the art will now describe the present invention in further detail with reference to the accompanying drawings.
Referring to fig. 1-9, the invention provides a self-locking mechanism for an isolating switch, which comprises a bottom plate 1, an isolating switch operating shaft 1.2 and a locking plate 1.4, wherein the locking plate 1.4 is horizontally connected to the bottom plate 1 in a sliding manner;
further comprising:
a driving component: one end of the isolating switch is connected with an isolating switch operating shaft 1.2, and the other end of the isolating switch operating shaft is connected with a locking plate 1.4;
the elastic locking assembly: which is arranged on the bottom plate 1;
the driving assembly drives the locking plate 1.4 to horizontally slide on the bottom plate 1;
the disconnecting stroke of the isolating switch operating shaft 1.2 drives the locking plate 1.4 to slide to a locking position in the horizontal direction of the bottom plate 1, and then the elastic locking assembly carries out self-locking on the locking plate 1.4.
Specifically, in the prior art, as shown in fig. 1a, the bottom plate 1 is used for supporting and installing various electrical elements, a supporting plate 1.1 is arranged on the bottom plate 1, the supporting plate 1.1 is fixedly installed on the bottom plate 1, the bottom plate 1 and the supporting plate 1.1 are connected with an isolating switch operating shaft 1.2 in a rotating manner, the isolating switch operating shaft 1.2 has a position for disconnecting an isolating switch or closing the isolating switch, a locking plate 1.4 is used for abutting the isolating switch operating shaft 1.2 for disconnecting the circuit breaker, and then the disconnecting stroke of the isolating switch operating shaft 1.2 drives the locking plate 1.4 to abut the circuit breaker operating handle, so that the circuit breaker operating handle is prevented from being closed under the condition of mistaken collision, and further danger is caused.
Carry out cam 1.22 fixed mounting at isolator operating axis 1.2, it has locking plate 1.4 to articulate on carrying out cam 1.22, the spout has been seted up to locking plate 1.4, fixedly connected with and the cylindricality round pin axle of spout looks adaptation on the bottom plate 1, and then make isolator operating axis 1.2's disconnection stroke drive locking plate 1.4 slide on bottom plate 1 and then realize carrying out the butt to circuit breaker switch operating handle, but drive in isolator operating axis 1.2's disconnection stroke and carry out cam 1.22 form, and then make this row of cam 1.22 drive locking plate 1.4 still can take place to swing when removing, make locking plate 1.4 carry out the process position of butt and take place the skew in circuit breaker switching operation, and then lead to locking plate 1.4 to be difficult to carry out the butt to circuit breaker switch operating handle, make circuit breaker open tube isolator operating axis 1.2 still be the condition that the maloperation takes place easily.
The key innovation point of the invention is that the horizontal position of the locking plate 1.4 on the bottom plate 1 is driven to move in the disconnecting stroke of the disconnecting switch operating shaft 1.2, so that the locking plate 1.4 can abut against the breaker switch operating handle, and the locking plate 1.4 is just moved to the locking position, so that the elastic locking assembly locks and limits the locking plate 1.4 at the locking position, and the disconnecting switch operating shaft 1.2 is prevented from being driven to be closed under the condition of cleaning and twisting the breaker switch operating handle.
The locking plate 1.4 is horizontally connected to the bottom plate 1 in a sliding mode, the mechanical locking plate 1.4 can horizontally slide on the bottom plate 1 in a reciprocating mode, and the positions of the locking plates 1.4 correspond to the positions of breaker switch operating shafts one by one, so that the locking plates 1.4 abut against the breaker disconnecting switch operating shafts 1.2 in the horizontal sliding process; the locking plate 1.4 may be adapted to the present embodiment by means of a sliding rail, a sliding groove, or any other means capable of sliding horizontally on the base plate 1.
Drive assembly makes and turns into rectilinear motion's mechanism with circular motion, and drive assembly's one end is connected with isolator operating axis 1.2, and drive assembly's the other end is connected with locking plate 1.4, and then drives locking plate 1.4 through isolator operating axis 1.2 to isolator disconnection in-process and move towards circuit breaker switch operation handle, carries out the butt until locking plate 1.4 to circuit breaker switch operation handle.
The mechanism for converting the circular motion into the linear reciprocating motion in the prior art can adopt a cam 1.22 push rod structure, a crank rocker mechanism or other mechanisms capable of converting the circular motion into the linear reciprocating motion, and the mechanism is also suitable for the invention.
The elastic locking assembly: it sets up on bottom plate 1, and it is used for locking plate 1.4, and the disconnection stroke when isolator operating axis 1.2 drives locking plate 1.4 towards the removal of circuit breaker switch handle, carries out the butt until locking plate 1.4 to circuit breaker switch handle, and locking plate 1.4 just in time moves to the locking position this moment, makes bullet shape locking subassembly lock spacingly to locking plate 1.4.
In the in-process of using, when the user rotated isolator operating axis 1.2 and disconnected isolator operation promptly, made locking plate 1.4 move towards circuit breaker switch handle, carried out the butt until locking plate 1.4 to circuit breaker switch handle, locking plate 1.4 just in time moved to the locking position this moment, made locking plate 1.4 carry out the butt to elasticity locking subassembly this moment, made the elasticity subassembly carry out the butt to locking plate 1.4, and then avoided comparing the operation and taking place.
According to the self-locking mechanism for the disconnecting switch, the driving assembly is driven to move through the closing stroke of the disconnecting switch operating shaft 1.2, the driving assembly drives the locking plate 1.4 to move towards the circuit breaker switch operating handle, when the locking plate 1.4 abuts against the circuit breaker switch operating handle, the elastic locking assembly is just enabled to lock and limit the locking plate 1.4, and then the locking plate 1.4 can accurately abut against the disconnecting switch operating shaft 1.2, so that the elastic locking assembly is also driven to limit the locking plate 1.4, and the disconnecting switch operating shaft 1.2 is prevented from being driven to be closed under the condition that the circuit breaker switch operating handle rotates wakefully.
Referring to fig. 1, 2, 3, 6, 7 and 8, in another embodiment of the present invention, the elastic locking assembly includes a locking block 1.6 slidably connected to the base plate 1, and the locking block 1.6 is connected to the base plate 1 through a second spring 1.61; and lock block 1.6 has a latch 1601 thereon.
The locking device comprises a locking plate 1.4, and is characterized by further comprising an inserting part matched with the elastic locking assembly, wherein the inserting part comprises a wedge-shaped protruding part arranged on the locking plate 1.4, and an inserting hole 1.40 matched with the inserting pin 1601 is formed in the wedge-shaped protruding part.
Specifically, a second chute 1.02 matched with the locking block 1.6 is formed in the vertical direction of the bottom plate 1 on one side, close to the operating handle of the circuit breaker switch, of the bottom plate 1, a plug 1601 is arranged at the bottom end of the locking block 1.6, a second spring 1.61 is fixedly connected to the inner wall of the second chute 1.02, the other end of the second spring 1.61 is fixedly connected with the locking block 1.6 (as shown in fig. 3), and therefore when the locking block 1.6 is abutted by a locking plate 1.4, the locking block 1.6 moves on the vertical position of the bottom plate 1;
the back fixedly connected with connecting block 1.41 of locking plate 1.4, still set up one on the bottom plate 1 with the first spout 1.01 of connecting block 1.41 looks adaptation, and then make locking plate 1.4 slide on bottom plate 1 through connecting block 1.41 and the cooperation of first spout 1.01, second spout 1.02 and first spout 1.01 mutually perpendicular (as shown in fig. 6), locking plate 1.4's upper end has a wedge-shaped protruding portion, wedge-shaped protruding portion and bolt 1601 butt each other (as shown in fig. 1), set up one on the wedge-shaped protruding portion with the spliced eye 1.40 of bolt 1601 looks adaptation.
When a user closes the disconnecting switch operating shaft 1.2, the disconnecting switch operating shaft 1.2 drives the driving component to move, the driving component drives the locking plate 1.4 to move towards the breaker switch operating handle, the wedge-shaped projection on the lock plate 1.4 abuts the plug 1601 during movement of the lock plate 1.4, so that the latch 1601 is forced to drive the locking block 1.6 to move upwards, and the locking block 1.6 compresses the second spring 1.61, when the locking plate 1.4 is just moved to abut against the operating handle of the circuit breaker switch, the latch 1601 is just aligned with the plug hole 1.40, so that the second spring 1.61 has a tendency of recovering to the original length, the second spring 1.61 drives the lock to move downwards, the latch 1601 is inserted into the insertion hole 1.40, the locking plate 1.4 is locked and limited, and the disconnecting switch operating shaft 1.2 is prevented from being closed under the action of powerful screwing of the breaker switch operating handle.
Referring to fig. 2-4, in another embodiment provided by the present invention, the driving assembly includes a cam 1.22 coaxially and fixedly connected with the disconnecting switch operating shaft 1.2, a transmission rod 1.23 is hinged on the cam 1.22, and one end of the transmission rod 1.23 is hinged with the locking plate 1.4.
Concretely, coaxial fixedly connected with cam 1.22 on isolator operating axis 1.2, it has a transfer line 1.23 to articulate on cam 1.22, and the one end of transfer line 1.23 articulates on locking plate 1.4, and locking plate 1.4 passes through connecting block 1.41 and first spout 1.01 sliding connection on bottom plate 1, makes locking plate 1.4 move towards circuit breaker switch handle on bottom plate 1 horizontal direction, and then carries out the butt to circuit breaker switch handle.
The isolating switch operating shaft 1.2 is manually disconnected by a user, so that the isolating switch operating shaft 1.2 drives the cam 1.22 to rotate, the cam 1.22 drives the transmission rod 1.23 to move, the transmission rod 1.23 drives the lock plate 1.4 to move towards the breaker switch operating handle, the wedge-shaped protruding part on the lock plate 1.4 is enabled to abut against the inserting pin 1601 in the moving process of the lock plate 1.4, the inserting pin 1601 is enabled to move upwards under the stress of the inserting pin to drive the lock block 1.6 to interact with the wedge-shaped protruding part on the lock plate 1.4, the inserting pin 1601 is enabled to move slowly to the top end of the wedge-shaped protruding part at the moment, the second spring 1.61 is compressed to the maximum deformation amount, when the lock plate 1.4 just moves to abut against the breaker switch operating handle, the inserting pin 1601 is just aligned with the inserting hole 1.40 at the moment, the second spring 1.61 has a tendency of recovering the original length, and the second spring 1.61 drives the lock to move downwards, and then the latch 1601 is inserted into the jack hole 1.40 to lock and limit the locking plate 1.4, so as to prevent the disconnector operating shaft 1.2 from being closed (i.e. moving from the state of fig. 2 to the state of fig. 4) under the action of powerful twisting of the breaker switch operating handle.
Referring to fig. 2-4, the present invention provides an embodiment further comprising an elastic extension tube, one end of the elastic extension tube is hinged to the locking plate 1.4 and the transmission rod 1.23, and the other end of the elastic extension tube is fixedly connected to the driving shaft.
The specific elastic telescopic pipe comprises a sleeve 1.33, the end part of the sleeve 1.33 is fixedly connected to a driving shaft, a sliding column 1.31 is sleeved on the sleeve 1.33, the sliding column 1.31 is hinged to a transmission rod 1.23 and a locking plate 1.4 through a hinge shaft, a first spring 1.32 is further sleeved between the sleeve 1.33 and the sliding column 1.31, one end of the first spring 1.32 is fixedly connected with the sliding column 1.31, and the other end of the first spring 1.32 is fixedly connected with the sleeve 1.33.
The isolating switch operation shaft 1.2 drives the driving shaft to rotate in the rotating process, so that the driving shaft rotates, and the isolating switch is switched on and off.
Referring to fig. 2 to 5, in another embodiment of the present invention, the present invention further includes an unlocking assembly, the unlocking assembly includes a starting unit and a lifting unit, the starting unit and the lifting unit are disposed on the disconnecting switch operating shaft 1.2, one end of the lifting unit is connected to the lock plate 1.4, and the other end of the lifting unit is connected to the starting unit.
The starting unit comprises a starting shaft 1.20 connected to the isolating switch operating shaft 1.2 in a sliding mode and an annular seat 1.21 sleeved on the isolating switch operating shaft 1.2, and the annular seat 1.21 is abutted to the starting shaft 1.20.
The raising unit comprises a second hinged rod 1.52, the middle of the second hinged rod is hinged to the bottom plate 1, one end of the second hinged rod 1.52 is movably connected with the elastic locking assembly, and the other end of the second hinged rod 1.52 is movably connected with the annular seat 1.21.
Specifically, as shown in fig. 4 and 5, the annular seat 1.21 is sleeved on the disconnecting switch operating shaft 1.2, the annular seat 1.21 and the disconnecting switch operating shaft 1.2 are rotationally connected with each other, the disconnecting switch operating shaft 1.2 has a hollow cylindrical structure with a through displacement port, the periphery of the disconnecting switch operating shaft 1.2 is connected with a plurality of kidney-shaped chutes 1.24 in a surrounding and through manner, the tail end of the starting shaft 1.20 is connected with a plurality of convex columns 1.201 in a surrounding and fixed manner, each convex column 1.201 is abutted against the end face of the annular seat 1.21, and then the annular seat 1.21 is pushed to move on the disconnecting switch operating shaft 1.2 by pressing the starting shaft 1.20.
The lifting unit comprises a second hinge rod 1.52, the middle part of the second hinge rod is hinged to the bottom plate 1, one end of the second hinge rod 1.52 is hinged to a third hinge rod 1.53, and the other end of the third hinge rod 1.53 is hinged to a locking block 1.6;
the other end of the second hinge rod 1.52 is hinged with the first hinge rod 1.51, and the other end of the first hinge rod 1.51 is hinged on the annular seat 1.21.
When a user disconnects the disconnecting switch operating shaft 1.2, the disconnecting switch operating shaft 1.2 drives the cam 1.22 to rotate, the cam 1.22 drives the transmission rod 1.23 to move, the transmission rod 1.23 drives the lock plate 1.4 to move towards the circuit breaker switch operating handle, the wedge-shaped protruding part on the lock plate 1.4 is enabled to abut against the inserted pin 1601 in the moving process of the lock plate 1.4, the inserted pin 1601 is enabled to be stressed to drive the lock block 1.6 to move upwards, the lock block 1.6 is enabled to compress the second spring 1.61, when the lock plate 1.4 just moves to abut against the circuit breaker switch operating handle, the inserted pin 1601 is enabled to interact with the wedge-shaped protruding part on the lock plate 1.4, the inserted pin 1601 is enabled to move to the top end of the wedge-shaped protruding part slowly, the second spring 1.61 is enabled to be compressed to the maximum deformation amount, when the inserted pin 1601 is just aligned with the inserted hole 1.40, the second spring 1.61 has a tendency of recovering to the original length, the second spring 1.61 drives the locking part to move downwards, so that the latch 1601 is inserted into the plug hole 1.40 to lock and limit the locking plate 1.4, and the disconnecting switch operating shaft 1.2 is prevented from being closed under the action of powerful twisting of the breaker switch operating handle, and the breaker switch operating shaft is locked (namely, the breaker switch operating shaft moves from the state shown in the figure 2 to the state shown in the figure 4);
after the high-voltage circuit is overhauled, at this time, an operator needs to close the isolating switch first, at this time, a user needs to manually press the starting shaft 1.20 to enable the starting shaft 1.20 to slide in the axial direction of the isolating switch operating shaft 1.2, and then each convex column 1.201 started by the operator abuts against the annular seat 1.21, so that the annular seat 1.21 slides in the axial direction of the isolating switch operating shaft 1.2, and further the annular seat 1.21 drives the first hinge rod 1.51 to swing, so that the first hinge rod 1.51 drives the second hinge rod 1.52 to swing, so that the hinge rod and the third hinge rod 1.53 interact to drive the locking block 1.6 to move in the second sliding chute 1.02, so that the locking block 1.6 drives the second spring 1.61 to be compressed until the bolt 1601 on the locking block 1.6 is disengaged from the insertion hole 1.40 on the locking plate 1.4 (as shown in fig. 3), and at this time, the user closes the isolating switch operating shaft 1.2 to drive the cam 1.22 to move while pressing the isolating switch, the blocking plate 1.4 is moved in the release direction away from the disconnecting operation shaft of the circuit breaker, and the disconnecting switch is closed, and then the switch operation shaft of the circuit breaker is closed.
While certain exemplary embodiments of the present invention have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that the described embodiments may be modified in various different ways without departing from the spirit and scope of the invention. Accordingly, the drawings and description are illustrative in nature and should not be construed as limiting the scope of the invention.
Claims (10)
1. A self-locking mechanism for an isolating switch comprises a bottom plate (1), an isolating switch operating shaft (1.2) and a locking plate (1.4), and is characterized in that the locking plate (1.4) is horizontally and slidably connected to the bottom plate (1);
further comprising:
a driving component: one end of the isolating switch is connected with an isolating switch operating shaft (1.2), and the other end of the isolating switch operating shaft is connected with a locking plate (1.4);
the elastic locking assembly: which is arranged on the bottom plate (1);
the driving assembly drives the locking plate (1.4) to horizontally slide on the bottom plate (1);
disconnection stroke drive locking plate (1.4) of isolator operating axis (1.2) make elasticity locking subassembly carry out the auto-lock to locking plate (1.4) after the horizontal direction of bottom plate (1) slides to the locking position.
2. The self-locking mechanism for the isolating switch according to claim 1, wherein an elastic locking assembly is slidably connected to the base plate (1), and the elastic locking assembly reciprocates in a vertical direction of the base plate (1).
3. The self-locking mechanism for the isolating switch according to claim 2, wherein the elastic locking assembly comprises a locking block (1.6) slidably connected to the base plate (1), and the locking block (1.6) is connected with the base plate (1) through a second spring (1.61); and a bolt (1601) is arranged on the locking block (1.6).
4. The self-locking mechanism for the isolating switch as claimed in claim 3, further comprising a plug part adapted to the elastic locking assembly, wherein the plug part comprises a wedge-shaped protrusion disposed on the locking plate (1.4), and the wedge-shaped protrusion is provided with a plug hole (1.40) adapted to the plug pin (1601).
5. The self-locking mechanism for the disconnecting switch is characterized in that the driving assembly comprises a cam (1.22) coaxially and fixedly connected with an operating shaft (1.2) of the disconnecting switch, a transmission rod (1.23) is hinged on the cam (1.22), and one end of the transmission rod (1.23) is hinged with a locking plate (1.4).
6. The self-locking mechanism for the isolating switch according to claim 5, further comprising an elastic telescopic tube, wherein one end of the elastic telescopic tube is hinged with the locking plate (1.4) and the transmission rod (1.23), and the other end of the elastic telescopic tube is fixedly connected with the driving shaft.
7. The self-locking mechanism for the disconnecting switch according to claim 2, further comprising an unlocking assembly, wherein the unlocking assembly comprises a starting unit and a tilting unit which are arranged on the disconnecting switch operating shaft (1.2), one end of the tilting unit is connected with the lock plate (1.4), and the other end of the tilting unit is connected with the starting unit.
8. The self-locking mechanism for the disconnecting switch according to claim 7, wherein the starting unit comprises a starting shaft (1.20) slidably connected to the disconnecting switch operating shaft (1.2) and an annular seat (1.21) sleeved on the disconnecting switch operating shaft (1.2), and the annular seat (1.21) abuts against the starting shaft (1.20).
9. The self-locking mechanism for the isolating switch according to claim 8, wherein the raising unit comprises a second hinge rod (1.52) with the middle part hinged on the bottom plate (1), one end of the second hinge rod (1.52) is movably connected with the elastic locking assembly, and the other end of the second hinge rod (1.52) is movably connected with the annular seat (1.21).
10. The self-locking mechanism for the disconnecting switch according to claim 8, wherein the disconnecting switch operating shaft (1.2) has a hollow cylindrical structure with a through displacement port, the periphery of the disconnecting switch operating shaft (1.2) is connected with a plurality of kidney-shaped sliding grooves (1.24) in a surrounding and through manner, the tail end of the starting shaft (1.20) is connected with a plurality of convex columns (1.201) in a surrounding and fixed manner, and the convex columns (1.201) are always in an abutting state with the end surface of the annular seat (1.21).
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| CN202210199586.3A CN114597084B (en) | 2022-03-02 | 2022-03-02 | Self-locking mechanism for isolating switch |
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| CN202210199586.3A CN114597084B (en) | 2022-03-02 | 2022-03-02 | Self-locking mechanism for isolating switch |
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| CN114597084B CN114597084B (en) | 2023-05-12 |
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| JP2005026106A (en) * | 2003-07-03 | 2005-01-27 | Fuji Electric Fa Components & Systems Co Ltd | External operation handle device of circuit breaker |
| CN209607652U (en) * | 2019-03-12 | 2019-11-08 | 广东电网有限责任公司 | A kind of disconnecting switch self-locking device |
| CN210245385U (en) * | 2019-09-19 | 2020-04-03 | 镇江市华立开关设备有限公司 | Large-current rotary isolating switch |
| CN112967903A (en) * | 2021-04-09 | 2021-06-15 | 安徽新高电气有限公司 | Locking structure of isolating switch |
| CN113078018A (en) * | 2021-05-08 | 2021-07-06 | 安徽新高电气有限公司 | Trigger mechanism of isolating switch |
| CN113078019A (en) * | 2021-05-08 | 2021-07-06 | 安徽新高电气有限公司 | Transmission mechanism for isolating switch |
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2022
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|---|---|---|---|---|
| JP2005026106A (en) * | 2003-07-03 | 2005-01-27 | Fuji Electric Fa Components & Systems Co Ltd | External operation handle device of circuit breaker |
| CN209607652U (en) * | 2019-03-12 | 2019-11-08 | 广东电网有限责任公司 | A kind of disconnecting switch self-locking device |
| CN210245385U (en) * | 2019-09-19 | 2020-04-03 | 镇江市华立开关设备有限公司 | Large-current rotary isolating switch |
| CN112967903A (en) * | 2021-04-09 | 2021-06-15 | 安徽新高电气有限公司 | Locking structure of isolating switch |
| CN113078018A (en) * | 2021-05-08 | 2021-07-06 | 安徽新高电气有限公司 | Trigger mechanism of isolating switch |
| CN113078019A (en) * | 2021-05-08 | 2021-07-06 | 安徽新高电气有限公司 | Transmission mechanism for isolating switch |
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| CN114597084B (en) | 2023-05-12 |
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