CN114597084B - Self-locking mechanism for isolating switch - Google Patents
Self-locking mechanism for isolating switch Download PDFInfo
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- CN114597084B CN114597084B CN202210199586.3A CN202210199586A CN114597084B CN 114597084 B CN114597084 B CN 114597084B CN 202210199586 A CN202210199586 A CN 202210199586A CN 114597084 B CN114597084 B CN 114597084B
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- locking plate
- switch operating
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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 utility model 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 plate, wherein the bottom plate is provided with a locking groove; and a driving assembly: one end of the locking plate is connected with the isolating switch operating shaft, and the other end of the locking plate is connected with the locking plate; elastic locking assembly: which is arranged on the bottom plate; the disconnecting stroke of the isolating switch operating shaft drives the locking plate to slide to the 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 component is driven to move through the closing stroke of the disconnecting switch operating shaft, so that the driving component drives the locking plate to move towards the breaker switch operating handle, when the locking plate abuts against the breaker switch operating handle, the elastic locking component just locks and limits the locking plate, and the disconnecting switch operating shaft is prevented from being driven to be closed under the condition that the breaker switch operating handle is in a wakeful rotation.
Description
Technical Field
The utility model relates to the isolating switch technology, in particular to a self-locking mechanism for an isolating switch.
Background
The isolating switch has obvious disconnection point, can realize the isolating function, and is mainly used for equipment overhaul and maintenance. The isolating switch does not have a breaking function, can not be switched on or off with load, and can be switched on or off only under the condition of breaking the load; the circuit breaker can normally open and close and break loads and is used for equipment control, but the circuit breaker does not have obvious disconnection points, so that whether a loop is disconnected or not can not be intuitively judged, and the circuit breaker is not suitable for equipment maintenance.
As in the applicant's prior application: the utility model relates to a circuit breaker and isolation misoperation prevention interlocking structure, which comprises a bottom plate and an isolation switch operation shaft, wherein an execution cam is clamped on the outer wall of the isolation switch operation shaft, a fixed shaft is welded on the left part of the front wall of an inner cavity of the bottom plate, a locking plate is clamped on the outer wall of the fixed shaft, the locking plate is positioned at the rear part of the execution cam, and a baffle is fixedly arranged on the left part of the front wall of the locking plate; wherein, the circuit breaker isolating switch operating shaft is limited by the baffle plate through the locking plate, and then the circuit breaker is interlocked with the isolation anti-misoperation.
The technical scheme includes that the technical scheme is that one end of a locking plate is hinged to a cam, the locking plate slides on a bottom plate through a pin shaft, the locking plate swings in a small range in the process of moving on the bottom plate in the process of rotating an isolating switch operating shaft, the locking plate is further deviated from the process of abutting a breaker switch operating handle, the locking plate is deviated from the process of limiting the breaker switch operating handle in a small probability manner, the locking plate is deviated from the process of abutting the breaker switch operating handle, and secondly, if an operator forcibly opens the breaker, the opening action of the breaker enables the locking plate to be strongly extruded, the locking plate is further moved, the isolating switch is forced to be closed by a transmission structure, and at the moment, the breaker and the isolating switch are in a closed state, so that the safety of a maintainer is difficult to ensure.
Disclosure of Invention
The utility model aims to provide a self-locking mechanism for an isolating switch, which aims to solve the defects in the prior art.
In order to achieve the above object, the present utility model provides the following technical solutions:
the self-locking mechanism for the isolating switch comprises a bottom plate, an isolating switch operating shaft and a locking plate, wherein the locking plate is horizontally and slidably connected to the bottom plate; also comprises; and a driving assembly: one end of the locking plate is connected with the isolating switch operating shaft, and the other end of the locking plate is connected with the locking plate; elastic locking assembly: which is arranged on the bottom plate; the driving component drives the locking plate to horizontally slide on the bottom plate; the disconnecting stroke of the isolating switch operating shaft drives the locking plate to slide to the 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, an elastic locking component is connected to the bottom plate in a sliding manner, and the elastic locking component reciprocates in the vertical direction of the bottom plate.
Preferably, the elastic locking component comprises a locking block which is connected with the bottom plate in a sliding way, 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 plug-in type locking device further comprises a plug-in portion matched with the elastic locking assembly, the plug-in portion comprises a wedge-shaped protruding portion arranged on the locking plate, and a plug-in hole matched with the plug pin is formed in the wedge-shaped protruding portion.
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 device further comprises an elastic telescopic tube, one end of the elastic telescopic tube is hinged with the locking plate and the transmission rod respectively, and the other end of the elastic telescopic tube is fixedly connected with the driving shaft.
Preferably, the automatic unlocking device further comprises an unlocking component, wherein the unlocking component comprises a starting unit and a tilting unit which are arranged on the operation shaft of the isolating switch, one end of the tilting unit is connected with the locking plate, and the other end of the tilting unit is connected with the starting unit.
Preferably, the starting unit comprises a starting shaft which is connected to the isolating switch operating shaft in a sliding mode and an annular seat which is sleeved on the isolating switch operating shaft in a sleeved mode, and the annular seat is abutted to the starting shaft.
Preferably, the tilting unit comprises a second hinging rod with the middle part hinged to the bottom plate, one end of the second hinging rod is movably connected with the elastic locking assembly, and the other end of the second hinging rod is movably connected with the annular seat.
Preferably, the hollow columnar structure with the through displacement port of the isolating switch operating shaft is characterized in that a plurality of kidney-shaped sliding grooves are formed in the circumferential side of the isolating switch operating shaft in a surrounding and through mode, a plurality of convex columns are fixedly connected with the tail end of the starting shaft in a surrounding and fixing mode, and the convex columns are always in a abutting state with the end face of the annular seat.
According to the self-locking mechanism for the disconnecting switch, the driving component is driven to move through the closing stroke of the disconnecting switch operating shaft, so that the driving component drives the locking plate to move towards the breaker switch operating handle, when the locking plate abuts against the breaker switch operating handle, the elastic locking component just locks and limits the locking plate, and then the locking plate can accurately abut against the disconnecting switch operating shaft to enable the elastic locking component to limit the locking plate, and the disconnecting switch operating shaft is prevented from being driven to be closed under the condition that the breaker switch operating handle is in a wakeful rotation.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are needed 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 utility model, and other drawings may be obtained according to these drawings for a person having ordinary skill in the art.
Fig. 1 is a schematic diagram of the overall structure of a self-locking mechanism for an isolating switch according to an embodiment of the present utility model;
FIG. 1a is a schematic diagram of the whole structure of a prior art isolating switch according to an embodiment of the present utility model
FIG. 2 is a schematic view of an installation structure of a lock block according to an embodiment of the present utility model;
fig. 3 is a schematic view of an installation structure of a locking plate according to an embodiment of the present utility model;
fig. 4 is a schematic structural view of a locking plate according to an embodiment of the present utility model;
fig. 5 is a schematic diagram of an unlocking structure of a locking plate according to an embodiment of the present utility model
Fig. 6 is a schematic structural diagram of an operation shaft of a disconnecting switch according to an embodiment of the present utility model;
FIG. 7 is a schematic structural diagram of a base plate according to an embodiment of the present utility model;
fig. 8 is a schematic structural view of a locking plate according to an embodiment of the present utility model;
fig. 9 is a schematic structural diagram of a locking block according to an embodiment of the present utility model.
Reference numerals illustrate:
1. a bottom plate; 1.01, a first chute; 1.02, a second chute; 1.1, a supporting plate; 1.2, isolating the operation shaft of the switch; 1.20, starting a shaft; 1.201, posts; 1.21, an annular seat; 1.22, cam; 1.23, a transmission rod; 1.24, waist-shaped sliding grooves; 1.31, sliding column; 1.32, a first spring; 1.33, sleeve; 1.4, locking plate; 1.40, plug holes; 1.41, connecting blocks; 1.51, a first hinge lever; 1.52, a second hinge rod; 1.53, a third articulation bar; 1.6, locking block; 1601. a plug pin; 1.61, a second spring.
Detailed Description
In order to make the technical scheme of the present utility model better understood by those skilled in the art, the present utility model will be further described in detail with reference to the accompanying drawings.
Referring to fig. 1 to 9, the utility model 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 and slidably connected to the bottom plate 1;
further comprises:
and a driving assembly: one end of the locking plate is connected with the isolating switch operating shaft 1.2, and the other end of the locking plate is connected with the locking plate 1.4;
elastic locking assembly: which is arranged on the bottom plate 1;
the driving component drives the locking plate 1.4 to horizontally slide on the bottom plate 1;
the disconnecting stroke of the disconnecting switch operating shaft 1.2 drives the locking plate 1.4 to slide to the locking position in the horizontal direction of the bottom plate 1, and then the elastic locking assembly performs self-locking on the locking plate 1.4.
Specifically, in the prior art, as shown in fig. 1a, a base plate 1 is used for supporting and installing various electric elements, a supporting plate 1.1 is arranged on the base plate 1, the supporting plate 1.1 is fixedly installed on the base plate 1, the base plate 1 and the supporting plate 1.1 are rotationally connected with a disconnecting switch operation shaft 1.2, the disconnecting switch operation shaft 1.2 is provided with a position for opening or closing the disconnecting switch, a locking plate 1.4 is used for abutting the disconnecting switch operation shaft 1.2 of the circuit breaker, and then the opening stroke of the disconnecting switch operation shaft 1.2 drives the locking plate 1.4 to abut the circuit breaker switch operation handle, so that the situation of mistaken touch of the circuit breaker switch operation handle is avoided, and danger is further caused.
The actuating cam 1.22 is fixedly arranged on the disconnecting switch operating shaft 1.2, the actuating cam 1.22 is hinged with the locking plate 1.4, the locking plate 1.4 is provided with a chute, the bottom plate 1 is fixedly connected with a cylindrical pin shaft which is matched with the chute, the disconnecting stroke of the disconnecting switch operating shaft 1.2 drives the locking plate 1.4 to slide on the bottom plate 1 so as to realize the abutting of the disconnecting switch operating handle of the circuit breaker, but the actuating cam 1.22 is driven in the disconnecting stroke of the disconnecting switch operating shaft 1.2, the cam 1.22 drives the locking plate 1.4 to swing while moving, the locking plate 1.4 is offset in the abutting process position of the disconnecting switch operating handle of the circuit breaker, and the locking plate 1.4 is difficult to abut the disconnecting switch operating handle of the circuit breaker, so that the disconnecting switch operating shaft 1.2 of the disconnecting switch is easy to operate by mistake.
The utility model has the core innovation points that the locking plate 1.4 is driven to move at the horizontal position on the bottom plate 1 in the opening stroke of the disconnecting switch operating shaft 1.2, so that the locking plate 1.4 can be abutted against the breaker switch operating handle, the locking plate 1.4 just moves to the locking position, the elastic locking assembly can lock and limit the locking plate 1.4 at the locking position, and the situation that the breaker switch operating handle drives the disconnecting switch operating shaft 1.2 to be closed under the condition of cleaning and screwing is avoided.
The locking plates 1.4 are horizontally and slidably connected to the bottom plate 1, the machine locking plates 1.4 can horizontally and reciprocally slide on the bottom plate 1, the positions of the locking plates 1.4 correspond to the positions of the breaker switch operating shafts one by one, and the locking plates 1.4 are enabled to 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 chute, or any other means that is capable of sliding horizontally on the base plate 1.
The drive assembly makes the mechanism that converts circular motion into linear motion, and drive assembly's one end is connected with isolator operating shaft 1.2, and drive assembly's the other end is connected with locking plate 1.4, and then drives locking plate 1.4 towards circuit breaker switch handle motion to the isolator disconnection in-process through isolator operating shaft 1.2, until locking plate 1.4 carries out the butt to circuit breaker switch handle.
The mechanism for converting circular motion into 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 circular motion into linear reciprocating motion, and the mechanism is also suitable for the utility model.
Elastic locking assembly: the locking plate 1.4 is arranged on the bottom plate 1 and used for locking the locking plate 1.4, and when the disconnecting stroke of the disconnecting switch operating shaft 1.2 drives the locking plate 1.4 to move towards the breaker switch operating handle until the locking plate 1.4 abuts against the breaker switch operating handle, the locking plate 1.4 just moves to the locking position at the moment, and the elastic locking assembly locks and limits the locking plate 1.4.
In the use, when the user rotates isolator operating shaft 1.2 and opens the isolator operation, make locking plate 1.4 take place to remove towards circuit breaker switch handle, until locking plate 1.4 carries out the butt to circuit breaker switch handle, locking plate 1.4 just in time moves to the locking position this moment, makes locking plate 1.4 carry out the butt to elastic locking subassembly this moment, makes elastic subassembly carry out the butt to locking plate 1.4, and then avoids than the operation emergence.
According to the self-locking mechanism for the disconnecting switch, the driving component is driven to move through the closing stroke of the disconnecting switch operating shaft 1.2, so that the driving component drives the locking plate 1.4 to move towards the breaker switch operating handle, when the locking plate 1.4 abuts against the breaker switch operating handle, the elastic locking component just locks and limits 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 component is 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 breaker switch operating handle is in a clear rotation.
Referring to fig. 1, 2, 3, 6, 7 and 8, in another embodiment of the present utility model, the elastic locking assembly includes a locking block 1.6 slidably connected to the base plate 1, where the locking block 1.6 is connected to the base plate 1 by a second spring 1.61; and the locking block 1.6 has a latch 1601 thereon.
The plug-in part is matched with the elastic locking assembly, the plug-in part comprises a wedge-shaped protruding part arranged on the locking plate 1.4, and a plug-in hole 1.40 matched with the plug 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 base plate 1 on one side, close to the breaker switch operating handle, of the base plate 1, a bolt 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 then the locking block 1.6 moves on the vertical place of the base plate 1 when being abutted by the locking plate 1.4;
the back of the locking plate 1.4 is fixedly connected with a connecting block 1.41, the bottom plate 1 is also provided with a first sliding groove 1.01 matched with the connecting block 1.41, the locking plate 1.4 slides on the bottom plate 1 through the matching of the connecting block 1.41 and the first sliding groove 1.01, the second sliding groove 1.02 is mutually perpendicular to the first sliding groove 1.01 (shown in fig. 6), the upper end of the locking plate 1.4 is provided with a wedge-shaped protruding part, the wedge-shaped protruding part is mutually abutted with the bolt 1601 (shown in fig. 1), and the wedge-shaped protruding part is provided with a plug hole 1.40 matched with the bolt 1601.
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 protruding part on the locking plate 1.4 is abutted against the plug 1601 in the moving process of the locking plate 1.4, the plug 1601 is stressed to drive the locking block 1.6 to move upwards, the locking block 1.6 is further compressed to enable the second spring 1.61, when the locking plate 1.4 just moves to abut against the breaker switch operating handle, the plug 1601 is just aligned with the plug hole 1.40 at the moment, the second spring 1.61 has a trend of recovering the original length, the second spring 1.61 drives the locking to move downwards, the plug 1601 is further inserted into the plug hole 1.40, the locking plate 1.4 is locked and limited, and the disconnecting switch operating handle is prevented from being closed under the action of powerful screwing.
Referring to fig. 2-4, in another embodiment of the present utility model, the driving assembly includes a cam 1.22 fixedly connected to the disconnecting switch operating shaft 1.2 coaxially, a transmission rod 1.23 is hinged to the cam 1.22, and one end of the transmission rod 1.23 is hinged to the locking plate 1.4.
Specifically, a cam 1.22 is fixedly connected to the disconnecting switch operating shaft 1.2 coaxially, a transmission rod 1.23 is hinged to the cam 1.22, one end of the transmission rod 1.23 is hinged to the locking plate 1.4, the locking plate 1.4 is slidably connected to the bottom plate 1 through a connecting block 1.41 and a first sliding groove 1.01, so that the locking plate 1.4 moves towards the breaker switch operating handle in the horizontal direction on the bottom plate 1, and then the breaker switch operating handle is abutted.
The disconnecting switch operating shaft 1.2 is manually disconnected by a user, 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 locking plate 1.4 to move towards the breaker switch operating handle, the wedge-shaped protruding part on the locking plate 1.4 is abutted against the plug 1601 in the moving process of the locking plate 1.4, the plug 1601 is stressed to drive the locking block 1.6 to move upwards, the plug 1601 interacts with the wedge-shaped protruding part on the locking plate 1.4, the plug 1601 is further 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, the plug 1601 is enabled to be aligned with the plug hole 1.40 at the moment when the locking plate 1.4 just moves to be abutted against the breaker switch operating handle, the second spring 1.61 is enabled to have a trend of restoring the original length, the second spring 1.61 is enabled to drive the plug 1601 to move downwards, and then the plug 1601 is enabled to be inserted into the plug hole 1.40 to drive the plug into the plug hole 1.4 to move upwards, and the disconnecting switch is prevented from being turned to the state of the disconnecting switch operating handle (namely, the disconnecting switch is prevented from being turned to the state 2).
Referring to fig. 2-4, in one embodiment, the utility model further includes an elastic telescopic tube, one end of the elastic telescopic tube is hinged with the locking plate 1.4 and the transmission rod 1.23 respectively, and the other end of the elastic telescopic tube is fixedly connected with the driving shaft.
The specific elastic telescopic tube comprises a sleeve 1.33, the end part of the sleeve is fixedly connected to the driving shaft, a sliding column 1.31 is sleeved on the sleeve 1.33, the sliding column 1.31 is respectively hinged to a transmission rod 1.23 and a locking plate 1.4 through a hinge shaft, a first spring 1.32 is 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 drive shaft is driven to rotate in the rotating process through the isolating switch operating shaft 1.2, so that the drive shaft is rotated, and the isolating switch is opened and closed.
Referring to fig. 2-5, in another embodiment of the present utility model, an unlocking assembly is further provided, where the unlocking assembly includes a starting unit and a tilting unit that are disposed on the disconnecting switch operating shaft 1.2, one end of the tilting unit is connected to the locking plate 1.4, and the other end of the tilting unit is connected to the starting unit.
The starting unit comprises a starting shaft 1.20 which is connected to the isolating switch operation shaft 1.2 in a sliding mode and an annular seat 1.21 which is sleeved on the isolating switch operation shaft 1.2, and the annular seat 1.21 is abutted with the starting shaft 1.20.
The raising unit comprises a second hinging rod 1.52 with the middle part hinged on the bottom plate 1, one end of the second hinging rod 1.52 is movably connected with the elastic locking component, and the other end of the second hinging 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 isolating switch operating shaft 1.2, the annular seat 1.21 is connected with the isolating switch operating shaft 1.2 in a mutually rotating manner, the displacement port of the isolating switch operating shaft 1.2 is of a hollow columnar structure, a plurality of kidney-shaped sliding grooves 1.24 are connected in a penetrating manner in a surrounding manner, the tail end of the starting shaft 1.20 is fixedly connected with a plurality of protruding columns 1.201 in a surrounding manner, each protruding column 1.201 is abutted to the end face of the annular seat 1.21, and then the annular seat 1.21 is pushed to move on the isolating switch operating shaft 1.2 by pressing the starting shaft 1.20.
The tilting unit comprises a second hinging rod 1.52 with the middle part hinged on the bottom plate 1, one end of the second hinging rod 1.52 is hinged with a third hinging rod 1.53, and the other end of the third hinging rod 1.53 is hinged with the 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 at the moment, and then the cam 1.22 drives the transmission rod 1.23 to move, and then the transmission rod 1.23 drives the locking plate 1.4 to move towards the breaker switch operating handle, during the movement of the locking plate 1.4, the wedge-shaped protruding part on the locking plate 1.4 is abutted against the plug 1601, and then the plug 1601 is forced to drive the locking block 1.6 to move upwards, and then the locking block 1.6 compresses the second spring 1.61, when the locking plate 1.4 just moves to be abutted against the breaker switch operating handle, the plug 1601 interacts with the wedge-shaped protruding part on the locking plate 1.4, and then the plug 1601 slowly moves to the top end of the wedge-shaped protruding part, and at the moment, and then the second spring 1.61 is compressed to the maximum deformation, and when the plug 1601 is aligned with the plug hole 1.40, the second spring 1.61 has a trend of restoring the original length, and then the second spring 1601 is forced to drive the locking block 1.6 to move upwards, and then the plug 1601 is screwed down to the breaker switch operating handle, and thus the disconnecting switch is prevented from moving from the locking plate 1.4, (namely, the situation is closed, the disconnecting switch is prevented from being turned down, and the locking shaft is closed, and the disconnecting switch is locked, and the state is locked, and the disconnecting switch is in the state, and the state is closed, and the state, and the disconnecting switch is turned, and the operating, and the disconnecting switch is in the state, and the operating shaft is in the state, and the state is broken, and the operating 2.1.is broken;
after the high-voltage circuit is overhauled, an operator needs to close the isolating switch at first, at this time, the user needs to manually press the starting shaft 1.20, the starting shaft 1.20 slides in the axial direction of the isolating switch operating shaft 1.2, each convex column 1.201 on the starting of the starting shaft is further abutted against the annular seat 1.21, the annular seat 1.21 slides in the axial direction of the isolating switch operating shaft 1.2, the annular seat 1.21 drives the first hinging rod 1.51 to swing, the first hinging rod 1.51 drives the second hinging rod 1.52 to swing, the hinging rod interacts with the third hinging rod 1.53 to drive the locking block 1.6 to move in the second sliding groove 1.02, the locking block 1.6 drives the compression second spring 1.61 until the plug pins on the locking block 1.6 are separated from the locking plate 1.4 (shown in fig. 3), at this time, the user closes the isolating switch when the palm is pressed and started, the isolating switch operating shaft 1.2 drives the cam to move towards the isolating switch 1.22, and then the isolating switch is opened, and the isolating switch is opened.
While certain exemplary embodiments of the present utility model have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that modifications may be made to the described embodiments in various different ways without departing from the spirit and scope of the utility model. Accordingly, the drawings and description are to be regarded as illustrative in nature and not as restrictive of the scope of the utility model, which is defined by the appended claims.
Claims (6)
1. The self-locking mechanism for the 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 comprises: and a driving assembly: one end of the locking plate is connected with the isolating switch operating shaft (1.2), and the other end of the locking plate is connected with the locking plate (1.4);
elastic locking assembly: which is arranged on the bottom plate (1);
the driving component drives the locking plate (1.4) to horizontally slide on the bottom plate (1);
the disconnecting stroke of the disconnecting 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); an elastic locking component is connected to the bottom plate (1) in a sliding manner, and the elastic locking component reciprocates in the vertical direction of the bottom plate (1);
the unlocking assembly comprises a starting unit and a tilting unit which are arranged on the isolating switch operation shaft (1.2), one end of the tilting unit is connected with the locking plate (1.4), and the other end of the tilting unit is connected with the starting unit;
the starting unit comprises a starting shaft (1.20) which is connected to the disconnecting switch operation shaft (1.2) in a sliding way and an annular seat (1.21) which is sleeved on the disconnecting switch operation shaft (1.2), and the annular seat (1.21) is abutted with the starting shaft (1.20);
the tilting unit comprises a second hinging rod (1.52) with the middle part hinged to the bottom plate (1), one end of the second hinging rod (1.52) is movably connected with the elastic locking assembly, and the other end of the second hinging rod (1.52) is movably connected with the annular seat (1.21).
2. A self-locking mechanism for a disconnector according to claim 1, characterized in that the elastic locking assembly comprises a locking block (1.6) slidingly connected to the base plate (1), the locking block (1.6) being connected to the base plate (1) by a second spring (1.61); and the locking block (1.6) is provided with a bolt (1601).
3. The self-locking mechanism for a disconnecting switch according to claim 2, further comprising a plug part adapted to the elastic locking assembly, wherein the plug part comprises a wedge-shaped protruding part arranged on the locking plate (1.4), and a plug hole (1.40) adapted to the plug pin (1601) is arranged on the wedge-shaped protruding part.
4. A self-locking mechanism for disconnectors according to claim 1, characterized in that the driving assembly comprises a cam (1.22) fixedly connected coaxially with the disconnector operating shaft (1.2), the cam (1.22) is hinged with a transmission rod (1.23), and one end of the transmission rod (1.23) is hinged with the locking plate (1.4).
5. The self-locking mechanism for a disconnecting switch according to claim 4, 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) respectively, and the other end of the elastic telescopic tube is fixedly connected with the driving shaft.
6. The self-locking mechanism for the disconnecting switch according to claim 5, wherein the disconnecting switch operating shaft (1.2) has a hollow columnar structure with a through displacement port, a plurality of kidney-shaped sliding grooves (1.24) are connected around and through the circumference side of the disconnecting switch operating shaft (1.2), a plurality of protruding columns (1.201) are fixedly connected around and through the tail end of the starting shaft (1.20), and the protruding columns (1.201) are always in a abutting state with the end face of the annular seat (1.21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| 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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| CN114597084A CN114597084A (en) | 2022-06-07 |
| CN114597084B true CN114597084B (en) | 2023-05-12 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP4127137B2 (en) * | 2003-07-03 | 2008-07-30 | 富士電機機器制御株式会社 | External circuit handle device for 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 |
| CN112967903B (en) * | 2021-04-09 | 2022-04-08 | 安徽新高电气有限公司 | Locking structure of isolating switch |
| CN113078019B (en) * | 2021-05-08 | 2022-03-08 | 安徽新高电气有限公司 | Transmission mechanism for isolating switch |
| CN113078018B (en) * | 2021-05-08 | 2022-03-08 | 安徽新高电气有限公司 | Trigger mechanism of isolating switch |
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