CN116364495A - Switching device of circuit breaker - Google Patents

Abstract

A circuit breaker switching device is characterized in that a wire inlet end and a wire outlet section of a circuit breaker are provided with corresponding handles, the corresponding handles are connected with corresponding end sliding switching assemblies, the corresponding handles can respectively link the corresponding sliding switching assemblies to slide back and forth in the rotation process of the corresponding wire inlet end and the wire outlet end of the circuit breaker, the corresponding wiring assemblies can be correspondingly connected or disconnected in the sliding process of the corresponding sliding switching assemblies back and forth, a linkage mechanism is arranged between the corresponding sliding switching assemblies and used for locking or unlocking corresponding electric connection states between the corresponding sliding switching assemblies, and a locking mechanism is arranged between the circuit breaker and the linkage mechanism. The switching device reduces the operating force of incoming line and outgoing line connection through the lever principle, and simultaneously associates incoming line, outgoing line and breaker on-off states, so that wiring operation under the electrified condition is avoided, and the safety performance of the whole device is improved.

Description

Switching device of circuit breaker

Technical Field

The invention belongs to the technical field of circuit breakers, and particularly relates to a circuit breaker switching device which reduces wiring difficulty of a circuit breaker.

Background

The circuit breaker is an important part in the distribution electrical equipment, is mainly used for an industrial low-voltage power system, and is used for switching on and off current in a power grid circuit and protecting a circuit and power supply equipment from damage caused by faults such as overload, undervoltage, short circuit, single-phase grounding and the like.

The circuit breaker switching base is mainly applied to the switch board, provides a circuit breaker mounting platform for the circuit breaker, and is used in tight combination with the circuit breaker, and is mainly used for switching and transmitting electric energy. In the prior art, the switching and transmission of the power distribution cabinet are usually realized by fixedly connecting a copper bar with a circuit breaker through bolts. When the circuit breaker is installed, bolts are used for fastening the electric connection of the incoming line and the outgoing line one by one, so that the installation efficiency is lower when the circuit breaker is installed for the first time or maintained and replaced in the later period. When the switching base is used, the circuit breaker and the base are electrically connected in a one-time clamping or plugging mode, quick installation or replacement can be realized, and especially the efficiency of field maintenance and replacement is greatly improved.

Chinese patent ZL201820304904.7 discloses a circuit breaker adapter, comprising a casing, which is correspondingly arranged at the bottom of the circuit breaker and is formed with a containing cavity; the first wiring structure and the second wiring structure are arranged on the shell and are correspondingly connected with a first wiring terminal and a second wiring terminal of the circuit breaker; the busbar is arranged in the accommodating cavity, one end of the busbar is connected with the second wiring structure, and the other end of the busbar is connected with a hook structure externally connected with the busbar; the wiring board is used for connecting wires and is arranged at a position of the shell corresponding to one side of the second wiring terminal; the conducting plate is arranged in the accommodating cavity, one end of the conducting plate is connected with the wiring plate, and the other end of the conducting plate is connected with the first wiring structure; above-mentioned adapter enables operating personnel when assembling the wire, directly will directly overlook the operation from the upper end of circuit breaker, and operating personnel's operation sight is wide, is difficult for being sheltered from, avoids appearing assembly mistake or connection insecure to the assembly is convenient, also need not the wire and walks around the circuit breaker because of connecting the line-out end, has avoided the dress hidden danger. However, this adapter still has several drawbacks:

(1) The installation and the disassembly require larger operation force, and the use difficulty is increased.

(2) The incoming line and the outgoing line are not associated, so that wiring operation is easy to carry out under the electrified condition, and safety accidents occur.

(3) The connection state of the adapter is irrelevant to the on-off state of the circuit breaker, so that the connection operation is easily carried out under the electrified condition, and safety accidents occur.

Disclosure of Invention

The invention aims to overcome the defects of the conventional circuit breaker adapter, and provides a circuit breaker adapter device which reduces the operating force of incoming line and outgoing line connection through a lever principle, and meanwhile, correlates incoming line, outgoing line and circuit breaker on-off states, so that wiring operation under the electrified condition is avoided, and the safety performance of the whole device is improved.

Technical proposal

In order to achieve the technical purpose, the circuit breaker switching device comprises a base, and the circuit breaker is arranged on the base, and is characterized in that a wire inlet handle is arranged at a wire inlet end of the circuit breaker, a wire outlet handle is arranged at a wire outlet end of the circuit breaker, the wire inlet handle is connected with a wire inlet end sliding switching assembly, the wire inlet handle and the wire outlet handle can respectively rotate at a wire inlet end and a wire outlet end corresponding to the circuit breaker, the wire inlet handle and the wire outlet handle can respectively link the wire inlet end sliding switching assembly and the wire outlet end sliding switching assembly corresponding to the circuit breaker in the rotation process of the wire inlet end and the wire outlet end corresponding to the circuit breaker to slide back and forth, the wire inlet end sliding switching assembly and the wire outlet end sliding switching assembly are arranged in the process of the circuit breaker in a back and forth sliding process, the wire inlet end wiring assembly of the wire inlet end on the base and the input assembly of the circuit breaker can be correspondingly connected or disconnected, the wire outlet end sliding switching assembly and the wire outlet end sliding switching assembly can be correspondingly connected with the wire inlet end of the circuit breaker or the wire outlet end sliding switching assembly of the circuit breaker, and the wire outlet end sliding switching assembly can be correspondingly connected with the wire inlet end sliding switching assembly of the circuit breaker or the wire outlet end sliding assembly of the circuit breaker in a locking mechanism of the circuit breaker, and the wire outlet end sliding switching assembly is correspondingly connected with the wire inlet end sliding assembly of the wire outlet end of the circuit breaker.

Further, the inlet wire handle is installed in the vertical kidney-shaped hole of inlet wire on the base through the inlet wire handle pivot, be provided with the inlet wire universal driving shaft on the inlet wire handle, the inlet wire handle rotates the in-process can pass through the inlet wire universal driving shaft linkage the sliding switching subassembly of inlet wire end slides back and forth, the inlet wire handle rotates the in-process, the inlet wire handle pivot is in the vertical kidney-shaped hole of inlet wire is in the back and forth sliding.

Further, the wire outlet handle is installed in a wire outlet vertical kidney-shaped hole on the base through a wire outlet handle rotating shaft, a wire outlet linkage shaft is arranged on the wire outlet handle, the wire outlet end sliding switching assembly can be linked to slide back and forth through the wire outlet linkage shaft in the rotation process of the wire outlet handle, and the wire outlet handle rotating shaft slides back and forth in the wire inlet and outlet vertical kidney-shaped hole in the rotation process of the wire outlet handle.

Further, the wire inlet end sliding switching assembly comprises a wire inlet sliding shell, the wire inlet sliding shell can slide in a wire inlet chute of a wire inlet end of the base, a vertical wire inlet connecting inserting piece is arranged in an inner cavity of the wire inlet sliding shell and is correspondingly arranged with the wire inlet wiring assembly, a horizontal wire inlet connecting inserting piece is fixedly arranged at the upper end of the vertical wire inlet connecting piece and is correspondingly arranged with the input wiring assembly, two ends of a wire inlet linkage shaft penetrate through wire inlet linkage shaft mounting holes on the wire inlet sliding shell are positioned in horizontal wire inlet waist-shaped holes on the wire inlet end of the base and can slide in the horizontal wire inlet waist-shaped holes, and the outer side of the wire inlet sliding shell is connected with a linkage mechanism through wire inlet step screws.

Further, the wire outlet end sliding switching assembly comprises a wire outlet sliding shell, the wire outlet sliding shell can slide in a wire outlet sliding groove of the wire outlet end of the base, a vertical wire outlet connecting inserting piece is arranged in an inner cavity of the wire outlet sliding shell and is arranged corresponding to the wire outlet wiring assembly, a horizontal wire outlet connecting inserting piece is fixedly arranged at the upper end of the vertical wire outlet connecting inserting piece and is arranged corresponding to the wire outlet wiring assembly, two ends of a wire outlet linkage shaft penetrate through wire outlet linkage shaft mounting holes on the wire outlet sliding shell, are positioned in horizontal wire outlet waist-shaped holes on the wire outlet end of the base and can slide in the horizontal wire outlet waist-shaped holes, and limiting protrusions are arranged on the outer sides of the wire outlet handles and correspond to the linkage mechanisms.

Further, the interlocking mechanism comprises a sliding rod, a wire inlet step screw penetrates through a wire inlet end connecting hole at one end of the sliding rod to be locked on the wire inlet sliding shell, the wire inlet step screw is installed in a horizontal wire inlet interlocking kidney-shaped hole at the wire inlet end of the base and can slide in the horizontal interlocking kidney-shaped hole, a wire outlet step screw is locked in a wire outlet step screw locking hole on the sliding rod, the wire outlet step screw locking hole is located at one side, close to the wire outlet end, of the sliding rod, the wire outlet step screw is located in the horizontal wire outlet interlocking kidney-shaped hole at the wire outlet end of the base, the wire outlet step screw can slide in the horizontal wire outlet interlocking kidney-shaped hole, and a limiting step is arranged at the other end of the sliding rod, and is correspondingly capable of realizing interlocking of the sliding rod and the wire outlet handle with a limiting boss arranged at the outer side of the wire outlet handle.

Further, the locking mechanism comprises a first connecting rod, the lower end of the first connecting rod is connected with a transmission shaft, a clamping pin group is arranged at the upper end of the first connecting rod, the clamping pin group is located in a clamping hole I on the sliding rod, and the transmission shaft is connected with a rotating shaft of the circuit breaker through a second connecting rod.

Further, the first clamping hole comprises a first horizontal clamping hole and a first arc-shaped limiting hole at the wire inlet end, the clamping pin group comprises a first clamping pin and a second clamping pin, the first connecting rod is driven by the rotating shaft of the circuit breaker to rotate, the inner side of the first clamping pin is positioned in the corresponding first horizontal clamping hole, the second clamping pin is positioned in the corresponding first arc-shaped limiting hole, the outer side of the first clamping pin is positioned in the limiting hole on the base, the lower end of the connecting rod is sleeved on the transmission shaft through a waist-shaped connecting rod hole on the first clamping pin, the two ends of the transmission shaft are limited by limiting step screws, the lower end of the second connecting rod is pivotally arranged on the transmission shaft, and the upper end of the second connecting rod is clamped on the rotating shaft of the circuit breaker.

Further, the locking mechanism comprises a connecting rod III, the connecting rod III is rotatably arranged between the base and the slide rod, the upper end of the connecting rod III is connected with a handle linkage rod, a handle is positioned in a handle linkage hole on the handle linkage rod, the connecting rod III can be driven to rotate through the handle linkage hole in the handle rotation process, the lower end of the connecting rod III extends out of a linkage plate, a first convex column and a second convex column are arranged on two sides of the linkage plate, the outer side end of the first convex column and the second convex column are correspondingly positioned in a first limiting hole on the base and a second clamping hole on the slide rod, and the inner side end of the first convex column is positioned in a second clamping hole on the slide rod.

Further, the clamping position Kong Erbao comprises a horizontal clamping hole II and an arc-shaped limiting hole II at the wire inlet end.

Further, a current transformer or a hall sensor is inserted in the outlet end of the circuit breaker, the outlet end is located between the circuit breaker 2 and the outlet end sliding switching assembly, and the output wiring assembly penetrates through the current transformer or the hall sensor.

Further, at least one of the wire inlet end sliding and switching assembly and the wire outlet end sliding and switching assembly is arranged on the corresponding wire inlet end and wire outlet end of the circuit breaker side by side.

Advantageous effects

The switching device of the circuit breaker has the following advantages:

(1) The sliding switching assembly and the circuit breaker wiring assembly can be connected and disconnected in a labor-saving manner by utilizing the lever principle.

(2) After the sliding switching assembly is connected with the circuit breaker wiring assembly, the internal conductor of the circuit breaker is not exposed, and the safety level is improved.

(3) The interlocking mechanism controls the opening and closing sequence requirements of the handles, and ensures the safety of electric disconnection and electric connection.

(4) The locking mechanism further ensures the safety of the circuit breaker wiring.

(5) The current transformer or the Hall sensor is convenient and quick to install.

Drawings

FIG. 1 is a product diagram of example 1 of the present invention.

Fig. 2 is a schematic structural view of embodiment 1 of the present invention.

Fig. 3 is an exploded view of embodiment 1 of the present invention.

Fig. 4a is a product diagram of the wire inlet end sliding and switching assembly or the wire outlet end sliding and switching assembly in embodiment 1 of the present invention.

Fig. 4b is a schematic diagram of the positions of the corresponding sliding housing, vertical tab and horizontal tab of the incoming and outgoing line terminals in embodiment 1 of the present invention.

Fig. 4c is an exploded view of the wire inlet end sliding and switching assembly or the wire outlet end sliding and switching assembly according to embodiment 1 of the present invention.

Fig. 5 is a product view of the base in example 1 of the present invention.

Fig. 6a is a schematic view showing the installation of the locking mechanism in embodiment 1 of the present invention.

Fig. 6b is a second schematic view of the installation of the locking mechanism in embodiment 1 of the present invention.

Fig. 6c is a product view of the first connecting rod in embodiment 1 of the present invention.

FIG. 6d is a product drawing of the slide bar of example 1 of the present invention.

Fig. 7 is a schematic diagram of a circuit breaker closing handle according to embodiment 1 of the present invention.

Fig. 8 is a schematic view of the release of the limit of the breaker release link mechanism in embodiment 1 of the present invention.

Fig. 9 is a schematic diagram of a sliding adapter assembly for completely pulling out a wire inlet end of a breaking wire inlet handle of a breaker in embodiment 1 of the present invention.

Fig. 10 is a schematic diagram of a sliding adapter assembly for fully pulling out a wire outlet end of a breaking wire outlet handle of a circuit breaker in embodiment 1 of the present invention.

Fig. 11a is a schematic view showing the installation of the locking mechanism in embodiment 2 of the present invention.

Fig. 11b is a schematic structural view of a third connecting rod in embodiment 2 of the present invention.

Detailed Description

The following description of the embodiments of the present invention will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the invention are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "inner", "outer", "front", "rear", "left", "right", "general side", "standby side", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific direction, be configured and operated in the specific direction, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted", "connected" and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.

The invention will now be described in further detail with reference to specific examples thereof in connection with the accompanying drawings.

Example 1

As shown in fig. 1,2 and 3, a switching device for a circuit breaker includes a base 1, the circuit breaker 2 is mounted on the base 1, a wire inlet end of the circuit breaker 2 is provided with a wire inlet handle 3, a wire outlet end of the circuit breaker 2 is provided with a wire outlet handle 4, the wire inlet handle 3 is connected with a wire inlet end sliding switching assembly 5, the wire outlet handle 4 is connected with a wire outlet end sliding switching assembly 6, at least one of the wire inlet end sliding switching assembly 5 and the wire outlet end sliding switching assembly 6 is arranged in parallel with a wire inlet end and a wire outlet end corresponding to the circuit breaker, in this embodiment, 3 of the wire inlet end sliding switching assembly 5 and the wire outlet end sliding switching assembly 6 are arranged in parallel with each other and are arranged in a wire inlet end and a wire outlet end corresponding to the circuit breaker. The wire inlet handle 3 and the wire outlet handle 4 can respectively rotate at the corresponding wire inlet end and wire outlet end of the circuit breaker 2, the wire inlet handle 3 and the wire outlet handle 4 can respectively link the corresponding wire inlet end sliding switching assembly 5 and wire outlet end sliding switching assembly 6 in the rotation process of the corresponding wire inlet end and wire outlet end of the circuit breaker 2, the wire inlet end sliding switching assembly 5 and the wire outlet end sliding switching assembly 6 are in the sliding process of the corresponding wire inlet end and wire outlet end of the circuit breaker 2, the wire inlet end sliding switching assembly 5 can enable the wire inlet wiring assembly 7 of the wire inlet end on the base 1 and the input wiring assembly 8 of the wire inlet end of the circuit breaker 2 to be correspondingly connected or disconnected, the wire outlet end sliding switching assembly 6 can enable the wire outlet wiring assembly 9 of the wire outlet end on the base 1 and the output wiring assembly 10 of the wire outlet end of the circuit breaker 2 to be correspondingly connected or disconnected, a locking mechanism 11 is arranged between the wire inlet end sliding switching assembly 5 and the wire outlet end sliding switching assembly 6 and the corresponding wire inlet end sliding switching assembly 6 to be used for locking and unlocking the locking mechanism 11 is arranged between the locking mechanism 11 and the unlocking mechanism 2. The current transformer or the Hall sensor 14 is inserted in the position between the circuit breaker 2 and the outlet sliding switching component 6 at the outlet end of the circuit breaker 2, and the output wiring component 10 passes through the current transformer or the Hall sensor 14.

The component mechanisms are described in further detail below with reference to the accompanying drawings.

As shown in fig. 2 and 3, the wire inlet handle 3 is installed in a wire inlet vertical kidney-shaped hole 101 on the base 1 through a wire inlet handle rotating shaft 3a, a wire inlet linkage shaft 3b is arranged on the wire inlet handle 3, the wire inlet end sliding and switching assembly 5 can be linked to slide back and forth through the wire inlet linkage shaft 3b in the rotation process of the wire inlet handle 3, and the wire inlet handle rotating shaft 3a slides back and forth in the wire inlet vertical kidney-shaped hole 101 in the rotation process of the wire inlet handle 3. The wire outlet handle 4 is installed in a wire outlet vertical waist-shaped hole 102 on the base 1 through a wire outlet handle rotating shaft 4a as shown in fig. 5, a wire outlet linkage shaft 4b is arranged on the wire outlet handle 4, the wire outlet end sliding and switching assembly 6 can be linked to slide back and forth through the wire outlet linkage shaft 4b in the rotation process of the wire outlet handle 4, and the wire outlet handle rotating shaft 4a slides back and forth in the wire inlet and outlet vertical waist-shaped hole 102 in the rotation process of the wire outlet handle 4.

As shown in fig. 4a,4b and 4c, the sliding and switching assembly 5 of the wire inlet end comprises a wire inlet sliding housing 5a, the wire inlet sliding housing 5a can slide in a wire inlet chute 103 of the wire inlet end of the base 1 shown in fig. 5, a vertical wire inlet connecting insert 5b is mounted in an inner cavity of the wire inlet sliding housing 5a and is correspondingly arranged with the wire inlet wiring assembly 7, in this embodiment, the wire inlet wiring assembly 7 comprises a wiring bracket and a wiring terminal, the wire inlet wiring assembly 7 is fixed on the base 1 by riveting or bolts, a horizontal wire inlet connecting insert 5c is fixedly mounted on the upper end of the vertical wire inlet insert 5b by a fastener 5e and is correspondingly arranged with the input wiring assembly 8, in this embodiment, the horizontal wire inlet connecting insert 5c is fixedly mounted on the upper end of the vertical wire inlet insert 5b by a fastener 5e, and is integrally fixed in the inner cavity of the wire inlet sliding housing 5a by a pin 5a02, the wire inlet pin 5a02 passes through a groove 5b01 on the vertical wire inlet 5b, so that the vertical wire inlet connecting insert 5b is fixed by the wire inlet pin 5b, and the wire inlet pin 02 is prevented from being pulled out by the pin 5b 02, and the wire inlet assembly is prevented from being electrically connected with the wire inlet pin 02 b. As shown in fig. 2 and 3, two ends of the wire feeding linkage shaft 3b pass through the wire feeding linkage shaft mounting hole 5a01 on the wire feeding sliding housing 5a, are positioned in the horizontal wire feeding kidney-shaped hole 104 on the wire feeding end of the base 1 shown in fig. 5 and can slide in the horizontal wire feeding kidney-shaped hole 104, the outer side of the wire feeding sliding housing 5a is connected with the interlocking mechanism 11 through the wire feeding step screw 5d, and the wire feeding step screw 5d passes through the horizontal wire feeding interlocking kidney-shaped hole 105 on the wire feeding end of the base 1, is fastened in the wire feeding step screw locking hole 5a04 on the wire feeding sliding housing 5a and can slide in the horizontal interlocking kidney-shaped hole 105. As shown in fig. 4a,4b and 4c, the wire outlet end sliding and switching assembly 6 includes a wire outlet sliding housing 6a, the wire outlet sliding housing 6a can slide in a wire outlet chute 106 of the wire outlet end of the base 1 shown in fig. 5, a vertical wire outlet plug 6b is installed in an inner cavity of the wire outlet sliding housing 6a and is arranged corresponding to the wire outlet wiring assembly 9, in this embodiment, the wire outlet wiring assembly 9 is composed of a wiring bracket and a wiring post, the wire outlet wiring assembly 9 is fixed on the base 1 by riveting or a bolt, a horizontal wire outlet plug 6c is fixedly installed on an upper end of the vertical wire outlet plug 6b by using a fastener two 6d and is arranged corresponding to the output wiring assembly 10, in this embodiment, the horizontal wire outlet plug 6c is fixedly installed on an upper end of the vertical wire outlet plug 6b by using a fastener two 6d and then is integrally fixed in the inner cavity of the wire outlet plug 6a by using a wire outlet pin 6a02, the wire outlet pin 6a02 passes through a wire outlet groove 6b01 on the vertical wire outlet plug 6b so as to fix the vertical wire outlet plug 6b to be pulled out by the wire outlet cap 6b, and the wire outlet plug 6c is prevented from being pulled out by the wire outlet pin 02 by the spring wire outlet plug 6 b. As shown in fig. 2 and 3, two ends of the wire outlet linkage shaft 4b pass through the wire outlet linkage shaft mounting hole 6a01 on the wire outlet sliding housing 6a, are positioned in the horizontal wire outlet waist-shaped hole 107 on the wire outlet end of the base 1 and can slide in the horizontal wire outlet waist-shaped hole 107, and a limiting protrusion 4c is arranged on the outer side of the wire outlet handle 4 and corresponds to the interlocking mechanism 11. The outlet step screw 11b passes through the horizontal outlet interlocking kidney-shaped hole 108 at the outlet end of the base 1 and can slide in the horizontal outlet interlocking kidney-shaped hole 108.

As shown in fig. 2 and 3, the interlocking mechanism 11 includes a slide bar 11a, a wire inlet step screw 5d is locked in a wire inlet step screw locking hole 5a04 on the wire inlet sliding housing 5a through a wire inlet end connecting hole 11a01 on one end of the slide bar 11a, and the wire inlet step screw 5d is installed in a horizontal wire inlet interlocking kidney-shaped hole 105 on the wire inlet end of the base 1 and can slide in the horizontal interlocking kidney-shaped hole 105; the wire outlet step screw 11b is locked in a wire outlet step screw locking hole 1104 on the slide bar 11a, the wire outlet step screw locking hole 1104 is positioned on one side, close to a wire outlet end, of the slide bar 11a, the wire outlet step screw 11b is positioned in a horizontal wire outlet interlocking kidney-shaped hole 108 of the wire outlet end of the base 1, and the wire outlet step screw 11b can slide in the horizontal wire outlet interlocking kidney-shaped hole 108. The other end of the sliding rod 11a is provided with a limiting step 11a02 which is opposite to a limiting protrusion 4c arranged on the outer side of the wire outlet handle 4, so that the interlocking of the sliding rod 11a and the wire outlet handle 4 can be realized. In this embodiment, the two wire-incoming-end connecting holes 11a01 are arranged up and down, and the sliding rods 11a are symmetrically arranged at two sides of the circuit breaker 2, so that the hole at the upper end is used at one side, and the hole at the lower end is used at the other side.

As shown in fig. 6a,6b,6c and 6d, the locking mechanism 12 includes a first connecting rod 12a, the bottom end of the first connecting rod 12a is connected with a transmission shaft 12b, a clamping pin set 12c is arranged at the upper end of the first connecting rod 12a, the clamping pin set 12c is located in a clamping hole 11a03 on the sliding rod 11a, the transmission shaft 12b is connected with a rotating shaft 13 inside the circuit breaker through a second connecting rod 12d, and the rotating shaft 13 has different positions when the circuit breaker is opened and closed. The first clamping hole 11a03 comprises a first horizontal clamping hole 11a0301 and an arc-shaped limiting hole 11a0302 at a wire inlet end, the clamping pin group 12c comprises a first clamping pin 12c01 and a second clamping pin 12c02, the inner side of the first clamping pin 12c01 is positioned in the corresponding first horizontal clamping hole 11a0301 in the process that the first connecting rod 12a is driven by the circuit breaker rotating shaft 13 to rotate, the second clamping pin 12c02 is positioned in the corresponding arc-shaped limiting hole 11a0302, and the outer side of the first clamping pin 12c01 is positioned in the limiting hole 1a on the base 1.

The lower end of the first connecting rod 12a is sleeved on the transmission shaft 12b through a connecting rod kidney-shaped hole 12a01 on the first connecting rod, two ends of the transmission shaft 12b are limited through limiting step screws 12e, the second connecting rod 12d is arranged on the base 1 through a connecting rod rotating shaft 12f arranged on the base 1, the lower end of the second connecting rod is pivotally arranged on the transmission shaft 12b, and the upper end of the second connecting rod 12d is clamped on the circuit breaker rotating shaft 13.

The working principle of the embodiment is that; when the circuit breaker is in a closing state, the circuit breaker rotating shaft 13 drives the first connecting rod 12a to rotate through the second connecting rod 12d, the first connecting rod 12a rotates to enable the first clamping pin 12c01 and the second clamping pin 12c02 to be located in the corresponding first horizontal clamping hole 11a0301 and the first arc limiting hole 11a0302 so as to limit the sliding rod 11a, the sliding rod 11a cannot move due to limited travel, the wire inlet handle 3 cannot pull the wire inlet end sliding and switching assembly 5, and the lower end face 4d of the wire outlet handle 4 cannot rotate outwards due to blocking of the limiting face 11a0201 of the limiting step 11a02, as shown in fig. 7.

When the circuit breaker is in a breaking state, the circuit breaker rotating shaft 13 drives the first connecting rod 12a to rotate through the second connecting rod 12d, the first connecting rod 12a rotates to enable the first clamping pin 12c01 and the second clamping pin 12c02 to be located in the first horizontal clamping hole 11a0301 as shown in fig. 8, the sliding rod 11a is unlocked and can move back and forth, at this time, the wire inlet handle 3 can pull the wire inlet end sliding switching assembly 5 to disconnect from the wire inlet wiring assembly 7 and the input wiring assembly 8, and the lower end face 4d of the wire outlet handle 4 is blocked by the limiting face 11a0201 of the limiting step 11a02 and cannot rotate outwards. As shown in fig. 9, only after the incoming wire handle 3 pulls the incoming wire end sliding and switching assembly 5 to be completely opened, the limiting surface 11a0201 of the limiting step 11a02 does not block the lower end surface 4d of the outgoing wire handle 4, the outgoing wire handle 4 can rotate outwards, and pulls the outgoing wire end sliding and switching assembly 6 to disconnect the outgoing wire end sliding and switching assembly 6 from the outgoing wire wiring assembly 9 and the outgoing wire assembly 10, in this state, the sliding rod 11a reacts to the first connecting rod 12a through the first clamping hole 11a03, and the first connecting rod 12a is locked and cannot rotate so as to lock the circuit breaker to be unable to switch on; as shown in fig. 10, after the outlet handle 4 pulls the outlet end sliding adapter component 6 to be completely opened, the limit protrusion 4c blocks the right side surface 11a0202 of the limit step 11a02, and the slide bar cannot move toward the outlet end, so that at this time, the inlet handle 3 cannot push the inlet end sliding adapter component 5 to be connected with the inlet wire connecting component 7 and the inlet wire connecting component 8.

Example 2

As shown in fig. 11a and 11b, in an embodiment of the present invention, the locking mechanism 12 includes a third connecting rod 12f, the third connecting rod 12f is rotatably mounted between the base 1 and the slide bar 11a, the upper end of the third connecting rod 12f is connected with a handle linkage rod 12g, the handle 14 is located in a handle linkage hole 12g01 on the handle linkage rod 12g, the third connecting rod 12f can be driven to rotate by the handle linkage hole 12g01 during rotation of the handle 14, the lower end of the third connecting rod 12f extends out of a linkage plate 12h, two sides of the linkage plate 12h are provided with a first protruding column 12h01 and a second protruding column 12h02, the outer end of the first protruding column 12h01 is located in a limiting hole 109 on the base 1, and the inner end of the first protruding column 12h01 is located in a clamping hole 11a04 on the slide bar 11 a; the second boss 12h02 is located in a second clamping hole 11a04 on the sliding rod 11a, and the second clamping hole 11a04 includes a second horizontal clamping hole 11a0401 and a second arc limiting hole 11a0402 of the wire inlet end. In this embodiment, during the rotation of the third connecting rod 12f, the outer end of the first protruding column 12h01 is located in the first limiting hole 109 on the base 1, and the inner end of the first protruding column 12h01 is located in the second horizontal clamping hole 11a0401 on the sliding rod 11 a; the second protruding column 12h02 is located in the second arc-shaped limiting hole 11a0402 on the sliding rod 11a, so that locking and unlocking of the sliding rod 11a are achieved. Other structures and operation principles are the same as those of embodiment 1.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and not for limiting the same; although the invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art will appreciate that; the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the invention.

Claims (12)

1. The switching device of the circuit breaker comprises a base (1), wherein the circuit breaker (2) is arranged on the base (1), and is characterized in that a wire inlet handle (3) is arranged at the wire inlet end of the circuit breaker (2), a wire outlet handle (4) is arranged at the wire outlet end of the circuit breaker (2), the wire inlet handle (3) is connected with a wire inlet end sliding switching component (5), the wire outlet handle (4) is connected with a wire outlet end sliding switching component (6), the wire inlet handle (3) and the wire outlet handle (4) can respectively rotate at the wire inlet end and the wire outlet end corresponding to the circuit breaker (2), the wire inlet handle (3) and the wire outlet handle (4) can respectively link the wire inlet end sliding switching component (5) and the wire outlet end sliding switching component (6) to slide back at the wire inlet end and the wire outlet end corresponding to the circuit breaker (2) in the rotation process of the wire inlet end and the wire outlet end corresponding to the circuit breaker (2), the wire inlet end sliding switching component (5) and the wire outlet end sliding switching component (6) can respectively slide back at the wire inlet end and the wire outlet end corresponding to the wire inlet end (2) corresponding to the wire inlet end sliding component (7) of the circuit breaker (2) or the wire inlet end (8) in the process of the circuit breaker (2), the wire outlet end sliding and switching assembly (6) can enable a wire outlet wiring assembly (9) of a wire outlet end on the base (1) and an output wiring assembly (10) of a wire outlet end of the circuit breaker (2) to be correspondingly connected or disconnected, a linkage mechanism (11) is arranged between the wire outlet end sliding and switching assembly (5) and the wire outlet end sliding and switching assembly (6) and used for locking or unlocking corresponding electric connection states of the wire outlet end sliding and switching assembly (5) and the wire outlet end sliding and switching assembly (6), and a locking mechanism (12) is arranged between the circuit breaker (2) and the linkage mechanism (11) and used for locking and unlocking between the circuit breaker (2) and the linkage mechanism (11).

2. The circuit breaker switching apparatus of claim 1 wherein: the wire inlet handle (3) is installed in a wire inlet vertical kidney-shaped hole (101) on the base (1) through a wire inlet handle rotating shaft (3 a), a wire inlet linkage shaft (3 b) is arranged on the wire inlet handle (3), the wire inlet handle (3) can be linked through the wire inlet linkage shaft (3 b) in the rotating process, the wire inlet end sliding switching assembly (5) slides back and forth, and the wire inlet handle (3) slides back and forth in the vertical kidney-shaped hole (101) of the wire inlet handle rotating shaft (3 a) in the rotating process.

3. The circuit breaker switching apparatus of claim 1 wherein: the wire outlet handle (4) is arranged in a wire outlet vertical kidney-shaped hole (102) on the base (1) through a wire outlet handle rotating shaft (4 a), a wire outlet linkage shaft (4 b) is arranged on the wire outlet handle (4), the wire outlet end sliding switching assembly (6) can be linked to slide back and forth through the wire outlet linkage shaft (4 b) in the rotation process of the wire outlet handle (4), and the wire outlet handle rotating shaft (4 a) slides back and forth in the wire inlet and outlet vertical kidney-shaped hole (102) in the rotation process of the wire outlet handle.

4. The circuit breaker switching apparatus of claim 1 wherein: the wire inlet end sliding switching assembly (5) comprises a wire inlet sliding housing (5 a), the wire inlet sliding housing (5 a) can slide in a wire inlet chute (103) of a wire inlet end of the base (1), a vertical wire inlet connecting inserting piece (5 b) is arranged in an inner cavity of the wire inlet sliding housing (5 a) and is correspondingly arranged with the wire inlet wiring assembly (7), a horizontal wire inlet connecting inserting piece (5 c) is fixedly arranged on the vertical wire inlet connecting inserting piece (5 b) and is correspondingly arranged with the input wiring assembly (8), two ends of a wire inlet linkage shaft (3 b) penetrate through wire inlet linkage shaft mounting holes (5 a 01) on the wire inlet sliding housing (5 a) and are positioned in horizontal wire inlet kidney-shaped holes (104) on the wire inlet end of the base (1) and can slide in the horizontal wire inlet kidney-shaped holes (104), and the outer side of the wire inlet sliding housing (5 a) is connected with the mechanism (11) through wire inlet step screws (5 d).

5. The circuit breaker switching apparatus of claim 1 wherein: the wire outlet end sliding switching assembly (6) comprises a wire outlet sliding shell (6 a), the wire outlet sliding shell (6 a) can slide in a wire outlet sliding groove (106) of the wire outlet end of the base (1), a vertical wire outlet connecting inserting piece (6 b) is arranged in an inner cavity of the wire outlet sliding shell (6 a) and corresponds to the wire outlet wiring assembly (9), a horizontal wire outlet connecting inserting piece (6 c) is fixedly arranged at the upper end of the vertical wire outlet connecting inserting piece (6 b) and corresponds to the output wiring assembly (10), two ends of a wire outlet linkage shaft (4 b) penetrate through wire outlet linkage shaft mounting holes (6 a 01) on the wire outlet sliding shell (6 a) to be positioned in horizontal wire outlet waist-shaped holes (107) on the wire outlet end of the base (1) and can slide in the horizontal wire outlet waist-shaped holes (107), and limiting protrusions (4 c) are arranged on the outer side of the wire outlet linkage shaft (4) and correspond to the linkage mechanism (11).

6. The circuit breaker switching apparatus of claim 1 wherein: the interlocking mechanism (11) comprises a sliding rod (11 a), a wire inlet step screw (5 d) penetrates through a wire inlet end connecting hole (11 a 01) at one end of the sliding rod (11 a) to be locked on a wire inlet sliding shell (5 a), the wire inlet step screw (5 d) is arranged in a horizontal wire inlet interlocking kidney-shaped hole (105) of a wire inlet end of the base (1) and can slide in the horizontal interlocking kidney-shaped hole (105), a wire outlet step screw (11 b) is locked in a wire outlet step screw locking hole (1104) on the sliding rod (11 a), the wire outlet step screw locking hole (1104) is positioned on one side, close to a wire outlet end, of the sliding rod (11 a), a wire outlet step screw (11 b) is positioned in a horizontal wire outlet interlocking kidney-shaped hole (108) of a wire outlet end of the base (1), and a limit step (11 a 02) and a limit boss (4 c) arranged on the outer side of the wire outlet (4) can be interlocked with the sliding rod (11 a) to achieve relative interlocking of the wire outlet step screw (11 a) and the limit handle (4).

7. The circuit breaker switching apparatus of claim 1 wherein: the locking mechanism (12) comprises a first connecting rod (12 a), the lower end of the first connecting rod (12 a) is connected with a transmission shaft (12 b), a clamping pin group (12 c) is arranged at the upper end of the first connecting rod (12 a), the clamping pin group (12 c) is located in a clamping hole (11 a 03) on the sliding rod (11 a), and the transmission shaft (12 b) is connected with a circuit breaker rotating shaft (13) through a second connecting rod (12 d).

8. The circuit breaker switching apparatus of claim 7 wherein: the first clamping hole (11 a 03) comprises a first horizontal clamping hole (11 a 0301) and a first arc-shaped limiting hole (11 a 0302) at the wire inlet end, the first clamping pin group (12 c) comprises a first clamping pin (12 c 01) and a second clamping pin (12 c 02), the first connecting rod is driven by the rotating shaft (13) of the circuit breaker to rotate, the inner side of the first clamping pin (12 c 01) is positioned in the first corresponding horizontal clamping hole (11 a 0301), the second clamping pin (12 c 02) is positioned in the first arc-shaped limiting hole (11 a 0302), the outer side of the first clamping pin (12 c 01) is positioned in the limiting hole (1 a) on the base (1), the lower end of the first connecting rod (12 a) is sleeved on the transmission shaft (12 b) through a waist-shaped connecting rod hole (12 a 01) on the first clamping pin, the two ends of the transmission shaft (12 b) are limited through limiting steps (12 e), and the lower end of the second connecting rod (12 d) is pivoted on the second connecting rod (12 b) and the rotating shaft (12 d) is mounted on the second connecting rod (12 d).

9. The circuit breaker switching apparatus of claim 1 wherein: the locking mechanism (12) comprises a connecting rod III (12 f), the connecting rod III (12 f) is rotatably arranged between the base (1) and the sliding rod (11 a), the upper end of the connecting rod III (12 f) is connected with a handle linkage rod (12 g), a handle (14) is positioned in a handle linkage hole (12 g 01) on the handle linkage rod (12 g), the connecting rod III (12 f) is driven to rotate through the handle linkage hole (12 g 01) in the rotating process of the handle (14), the lower end of the connecting rod III (12 f) extends out of a linkage plate (12 h), a convex column I (12 h 01) and a convex column II (12 h 02) are arranged on two sides of the linkage plate (12 h), the outer side end of the convex column I (12 h 01) and the convex column II (12 h 02) are correspondingly positioned in a limiting hole I (109) on the base (1) and a clamping hole II (11 a 04) on the sliding rod (11 a), and the inner side end of the convex column I (12 h 01) is positioned in the sliding rod II (11 a).

10. The circuit breaker switching apparatus of claim 9 wherein: the second clamping hole (11 a 04) comprises a second horizontal clamping hole (11 a 0401) and a second arc-shaped limiting hole (11 a 0402) at the wire inlet end.

11. The circuit breaker switching apparatus of claim 1 wherein: the current transformer or the Hall sensor (14) is inserted and mounted at the outlet end of the circuit breaker (2) and is positioned between the circuit breaker (2) and the outlet end sliding switching assembly (6), and the output wiring assembly (10) penetrates through the current transformer or the Hall sensor (14).

12. The circuit breaker switching apparatus of claim 1 wherein: the wire inlet end sliding and switching assembly (5) and the wire outlet end sliding and switching assembly (6) are arranged in parallel at the corresponding wire inlet end and wire outlet end of the circuit breaker (2).

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