CN115547715B

CN115547715B - Mistaken-touch preventing device for separating brake of high-low voltage power distribution cabinet

Info

Publication number: CN115547715B
Application number: CN202211534285.8A
Authority: CN
Inventors: 于欢腾; 洪启莲; 常静; 徐辉; 赵青; 杨鹏; 朱敏
Original assignee: Zhenjinag Klockner Moeller Electrical Systems Co ltd
Current assignee: Zhenjinag Klockner Moeller Electrical Systems Co ltd; Daqo Group Co Ltd
Priority date: 2022-12-02
Filing date: 2022-12-02
Publication date: 2023-03-21
Anticipated expiration: 2042-12-02
Also published as: CN115547715A

Abstract

The application discloses a false touch prevention device for a separating brake of a high-low voltage power distribution cabinet, which relates to the technical field of switch contact operating mechanisms and comprises a base, a knob and a pneumatic device, wherein the knob comprises a limiting block and a tension spring; the tension spring is fixed between the limiting block and the rotating handle; the limiting block is made of ferromagnetic metal capable of being attracted by the magnet; the pneumatic device comprises a first pneumatic assembly, a second pneumatic assembly and a square plate; the first pneumatic assembly comprises a first elastic capsule and a magnet block; the magnet block is fixed on the first elastic bag, and when the first elastic bag is inflated and expanded, the magnet block can be close to the limiting block from a far position; the second pneumatic assembly comprises a second elastic bag; the second elastic bag is in a shape of' 21274when being expanded; the square plate is fixed on the second elastic bag, and when the second elastic bag contracts, the square plate is positioned between the first elastic bag and the limiting block; the technical effect that when only one pressing structure on the knob is pressed due to collision, the switch cannot be separated from a locking state can be achieved.

Description

Mistaken-touch preventing device for separating brake of high-low voltage power distribution cabinet

Technical Field

The invention relates to a switch contact operating mechanism, in particular to a false touch prevention device for a disconnecting switch of a high-low voltage power distribution cabinet.

Background

The power distribution cabinet is a general name of a motor control center. A power distribution cabinet can be provided with more electrical switches, and a manual rotary switch is often arranged on a high-voltage power distribution cabinet to control the connection and disconnection of a power connecting knife of the power distribution cabinet; however, the toggle switch for the high-voltage power distribution cabinet still has the defects, and the phenomenon of mistaken touch of a body is difficult to avoid when the electrical switch is turned on or turned off, so that the switch is turned on or turned off under the action of external force, and the conventional technology can be provided with the mistaken touch prevention device to avoid the occurrence of the mistaken touch phenomenon.

The device comprises a rotating handle, an arc plate and a limiting block, wherein buttons are arranged on two sides of the rotating handle, and the C-shaped buckle is driven to slide upwards under the transmission action between a rack and a gear shaft after the buttons are pressed, so that the limiting block is separated from a limiting groove on the arc plate, and the locking state of the rotating handle is released; when the knob is loosened, under the action of the elastic force of the extrusion spring, the two groups of buttons can reset to the initial state, the limiting blocks can slide into the limiting grooves at the moment, the locking treatment after the switch is opened and closed is completed, and the generation of the phenomenon that the switch is mistakenly touched to be opened and closed by external force is reduced.

Although the switch structure can lock the switch through the rotating handle, when one of the pressing structures on the two sides of the rotating handle in the switch structure is collided to a certain degree, the pressing structure still drives the rack and the gear shaft to transmit, and then the switch is separated from a locking state, and the possibility of the phenomenon is high.

Disclosure of Invention

The embodiment of the application provides a device is touched in mistake of preventing of high-low voltage distribution cabinet separating brake, has solved among the prior art that the switch structure goes up to revolve and still can lead to the switch to break away from the technical problem of locking state after receiving certain collision to a certain press structure in the press structure of both sides, has realized only one press structure receive the collision when being pressed when revolving, and the switch can not break away from the technical effect of locking state.

The embodiment of the application provides a false touch prevention device for a disconnecting switch of a high-low voltage power distribution cabinet, which comprises a base and a knob, wherein the knob comprises a limiting block and a tension spring;

also comprises a pneumatic device;

the tension spring is fixed between the limiting block and the rotating handle;

the limiting block is made of ferromagnetic metal capable of being attracted by a magnet;

the pneumatic device comprises a first pneumatic assembly, a second pneumatic assembly and a square plate;

the first pneumatic assembly comprises a first elastic capsule and a magnet block;

the magnet block is fixed on the first elastic bag, and when the first elastic bag is inflated and expanded, the magnet block can be close to the limiting block from a far position;

the second pneumatic assembly includes a second elastomeric bladder;

the second elastic bag is in a shape of' 21274when expanded;

the square plate is fixed on the second elastic bag, when the second elastic bag contracts, the square plate is positioned between the first elastic bag and the limiting block, and when the second elastic bag is inflated and expanded, the square plate is driven to slide, so that the magnet block can be close to the limiting block;

the base is square and comprises an arc-shaped plate and a limiting groove;

the arc-shaped plate is fixed on the lower half part of the front end surface of the base, and limiting grooves are symmetrically formed in the tops of two ends of the arc-shaped plate;

the whole rotating handle is a hollow cuboid, and a position, corresponding to the arc-shaped plate, on the shell of the rotating handle is provided with a limiting hole;

the rotary handle also comprises a supporting plate;

the support plate main body is plate-shaped, the number of the support plates is two, and the two support plates are symmetrically fixed on the inner wall of the knob;

the length of the limiting hole is greater than twice that of the limiting groove, so that the limiting block can be separated from the limiting groove;

the width of the limiting block, the width of the limiting hole and the width of the limiting groove are the same, so that the limiting block can move up and down along the limiting hole, and the left and right shaking cannot occur;

the pneumatic device comprises a flow distribution assembly;

the flow distribution assembly comprises an oblique air duct, a rotating shaft and a rotating sheet;

the inclined air duct is used for communicating a first elastic membrane in the first pneumatic assembly with a second elastic membrane in the second pneumatic assembly, and one end, close to the first elastic membrane, of the inclined air duct is higher than one end, close to the second pneumatic assembly, of the inclined air duct, so that the whole inclined air duct is in an inclined state;

the middle positions of two sides of the oblique air duct are respectively communicated with a first air duct and a second air duct for conveying air into the first air duct and the second air duct;

the rotating shaft is positioned in the center of the inner part of the oblique air duct, and two ends of the rotating shaft are connected with the inner wall of the oblique air duct;

the rotating shaft is fixedly connected with two rotating pieces, and the two rotating pieces are opposite in position;

the main body of the rotating sheet is a cuboid, and the two rotating sheets are in sealing contact with the inner wall of the oblique gas guide pipe, so that the oblique gas guide pipe is divided into two spaces which are not communicated;

the flow distribution assembly further comprises a first sliding stop block and a second sliding stop block;

the first sliding stop block and the second sliding stop block are attached to the inner wall of the inclined air duct in a sliding manner, and are centrosymmetric relative to the rotating shaft;

one end of the first sliding stop block, which is far away from the second elastic membrane, is fixedly connected with the rotating sheet with the closer distance, and one end of the second sliding stop block, which is far away from the first elastic membrane, is fixedly connected with the rotating sheet with the closer distance;

the rotating sheet is made of a material with deformation capacity, so that when the rotating shaft rotates to drive the rotating sheet to rotate, the first sliding stop block or the second sliding stop block can be pulled to slide on the inner wall of the inclined air duct without being blocked;

the width of the first sliding stop block and the second sliding stop block is the same as the diameter of the opening of the first air duct and the opening of the second air duct;

the first sliding stop block is heavier than the second sliding stop block, so that the first sliding stop block cannot block the opening of the first air duct under the condition of no external force;

the first pneumatic assembly also comprises a first elastic membrane, a first pressure spring, a first air duct and a first elastic rope;

a first elastic film is fixed on the end face, far away from the handle shaft, of the handle, a first pressure spring is fixed between the first elastic film and the handle, and the first elastic film is supported into a hemispherical shape under the action of the first pressure spring;

the first air duct connects the first elastic membrane with the interior of the first elastic bag through the flow dividing assembly;

the first elastic bag is positioned in the rotating handle and fixed on the first air duct, and the first elastic bag extends to form a cylinder towards the limiting block when inflated and expanded;

the number of the first elastic ropes is multiple, one end of each first elastic rope is fixed on the inner surface of the corresponding first elastic bag, and the other end of each first elastic rope is fixed on the corresponding first air duct, so that the first elastic bags can be better overlapped together when being retracted after air suction;

the magnet block is fixed at one end, close to the limiting block, of the first elastic bag;

the second pneumatic component also comprises a second elastic membrane, a second pressure spring, a second air duct and a second elastic rope;

a second elastic film is fixed on the end face of the knob, which is close to the knob shaft, a second pressure spring is fixed between the second elastic film and the knob, the second elastic film is supported into a hemisphere shape under the action of the second pressure spring, and the position of the second elastic film is opposite to that of the first elastic film;

the second airway connects the second elastic membrane to the interior of the second elastic bladder through a flow-splitting assembly.

The shape of the second elastic bag after inflation is a '21274', the middle part of the second elastic bag is fixedly connected with the inner wall of the end face of the knob, which is close to the knob shaft, and the two arm parts are lapped on the supporting plate, so that the two arm parts can expand and contract along the supporting plate when the second elastic bag is inflated and deflated;

the number of the second elastic ropes is multiple, and the second elastic ropes are located inside two sides of the second elastic bag, so that two arm parts of the second elastic bag can be better overlapped together when being contracted.

The square plate is lapped on the supporting plate and fixed on the top ends of the two arm parts of the second elastic bag;

when the second elastic membrane does not receive the extrusion, the second elastic bag is in a contraction state, the square plate is located in the middle of the first elastic bag and the limiting block, when the second elastic membrane receives the extrusion, the internal gas can enter the second elastic bag through the second air duct, so that the second elastic bag expands, the square plate slides towards the direction away from the rotating handle shaft, the square plate is not located in the middle of the first elastic bag and the limiting block, and the square plate penetrates through the shell to stretch out the rotating handle to serve as an identification function.

The square plate comprises a support frame, a U-shaped groove and an arc-shaped rod;

the shape of the support frame is '21274', and a plurality of U-shaped grooves are symmetrically and uniformly formed on two arms of the support frame;

the depth of the U-shaped groove is the same as the diameter of the cross section circle of the straight rod part of the arc-shaped rods, and the number of the arc-shaped rods is the same as one half of the number of the U-shaped groove;

the middle position of the arc-shaped rod is arranged to be arc-shaped, when the square plate is pressed by the first elastic bag downwards from the upper part of the U-shaped groove, the arc-shaped rod is clamped by the U-shaped groove, and the middle of the arc-shaped rod is arc-shaped, so that the arc-shaped rod cannot be separated from the U-shaped groove, and the first elastic bag cannot penetrate through the square plate;

the both ends position of arc pole is straight rod shape, makes things convenient for the both ends of arc pole to support and leans on in the U type groove.

The square plate also comprises an elastic connecting rope;

the number of the elastic connecting ropes is the same as that of the U-shaped grooves, one end of each elastic connecting rope is fixed below the corresponding U-shaped groove, and the other end of each elastic connecting rope is fixed on the end face of the corresponding arc-shaped rod, so that the two ends of each arc-shaped rod are positioned in the corresponding U-shaped grooves under the elastic action of the elastic connecting ropes;

the two ends of the arc-shaped rod are only connected with the elastic connecting ropes, so that the arc-shaped rod can rotate;

the arc at arc position in the middle of the arc-shaped rods is minor arc, so that two adjacent arc-shaped rods can not collide with each other after rotating 90 degrees in the same direction along the length direction of the rods.

One or more technical solutions provided in the embodiments of the present application have at least the following technical effects or advantages:

the pneumatic device is arranged on the knob and comprises a flow dividing assembly, a first pneumatic assembly and a second pneumatic assembly; a magnet block is fixed at the bottom of a first elastic bag in the first pneumatic assembly, a square plate is fixed at the top end of a second elastic bag in the shape of '21274', the square plate is positioned between the magnet block and a limiting block made of ferromagnetic metal when the second elastic bag contracts, and the square plate is bound when the second elastic bag expands; when the first elastic bag expands, the magnet block approaches the limiting block, the limiting block is sucked out of the limiting groove, and the rotating handle is separated from the locking state; the technical problem of among the switch structure in the prior art the last one of the press structure of screwing in both sides press the structure and receive certain collision back and still can lead to the switch to break away from the locking state is solved, realized only one press the structure and receive the collision when being pressed when screwing in, the switch can not break away from the technical effect of locking state.

Drawings

Fig. 1 is a base structure diagram of the false touch prevention device of the separating brake of the high-low voltage power distribution cabinet of the invention;

fig. 2 is a schematic view of a base of the false touch prevention device of the disconnecting switch of the high-low voltage power distribution cabinet;

fig. 3 is a structure diagram of a rotating handle of the false touch prevention device of the disconnecting switch of the high-low voltage power distribution cabinet;

fig. 4 is a schematic view of a rotating handle of the false touch prevention device of the disconnecting switch of the high-low voltage power distribution cabinet;

fig. 5 is a structure diagram of a shunt assembly of the false touch prevention device of the disconnecting switch of the high-low voltage power distribution cabinet;

fig. 6 is a schematic view of a shunt assembly of the false touch prevention device of the disconnecting switch of the high-low voltage power distribution cabinet;

fig. 7 is a first elastic airbag structure diagram of the false touch prevention device of the separating brake of the high-low voltage power distribution cabinet;

fig. 8 is a structure diagram of a second elastic air bag of the false touch prevention device of the disconnecting switch of the high-low voltage power distribution cabinet;

fig. 9 is a schematic view of a second elastic air bag of the false touch prevention device of the disconnecting switch of the high-low voltage power distribution cabinet;

fig. 10 is a schematic diagram of a square plate of the false-touch prevention device of the separation gate of the high-low voltage power distribution cabinet;

fig. 11 is a structure diagram of a square plate of the device for preventing the false touch of the separating brake of the high-low voltage power distribution cabinet;

fig. 12 is a schematic view of a U-shaped groove of the false touch prevention device for the disconnecting switch of the high-low voltage power distribution cabinet of the present invention;

fig. 13 is a schematic view of an elastic connection rope of the false touch prevention device of the disconnecting switch of the high-low voltage power distribution cabinet;

fig. 14 is a schematic view of an arc-shaped rod of the false touch prevention device of the disconnecting switch of the high-low voltage power distribution cabinet.

In the figure:

the mounting structure comprises a base 100, a mounting hole 110, a sealing rubber gasket 120, an arc-shaped plate 130 and a limiting groove 131;

the handle 200, the handle shaft 210, the shell 220, the supporting plate 230, the limiting block 240 and the tension spring 250;

the pneumatic device 300, a flow distribution component 310, an oblique air duct 311, a rotating shaft 312, a rotating plate 313, a first sliding stop 314, a second sliding stop 315, a first pneumatic component 320, a first elastic membrane 321, a first pressure spring 322, a first air duct 323, a first elastic capsule 324, a first elastic rope 325, a magnet block 326, a second pneumatic component 330, a second elastic membrane 331, a second pressure spring 332, a second air duct 333, a second elastic capsule 334, a second elastic rope 335, a square plate 340, a support frame 341, a U-shaped groove 342, an arc-shaped rod 343, and an elastic connecting rope 344.

Detailed description of the preferred embodiments

In order to facilitate an understanding of the present invention, the present application will now be described more fully with reference to the accompanying drawings; the preferred embodiments of the present invention are illustrated in the accompanying drawings, but the invention may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete.

It is noted that the terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs; the terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention; as used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1, the device for preventing a separation gate of a high-low voltage power distribution cabinet from being touched by mistake according to the present invention includes a pneumatic device 300, wherein the pneumatic device 300 includes a shunt assembly 310, a first pneumatic assembly 320, and a second pneumatic assembly 330; a magnet block 326 is fixed at the bottom of a first elastic bag 324 in the first pneumatic assembly 320, a square plate 340 is fixed at the top end of a second elastic bag 334 in the shape of '\21274' in the second pneumatic assembly 330, the square plate 340 is positioned between the magnet block 326 and a limiting block 240 made of ferromagnetic metal when the second elastic bag 334 contracts, and the square plate 340 is bound when the second elastic bag 334 expands; when the first elastic bag 324 expands, the magnet 326 approaches the limiting block 240, so that the limiting block 240 is sucked out of the limiting groove 131, and the knob 200 is released from the locking state; the technical problem of in the prior art still can lead to the switch to break away from the locking state after receiving certain collision in the structure of the last one of the press structure of screwing in 200 both sides of switch, realized only one press structure on the knob 200 and received the collision when being pressed, the switch can not break away from the technical effect of locking state.

Examples

As shown in fig. 1 and fig. 2, the device for preventing false contact of the disconnecting switch of the high-low voltage power distribution cabinet comprises a base 100, a rotating handle 200 and a pneumatic device 300; the base 100 is square and comprises an arc-shaped plate 130 and a limiting groove 131, mounting holes 110 are formed in four corners of the base 100, and a sealing rubber gasket 120 is embedded in the periphery of the front end face of the base 100; the arc plate 130 is fixed on the lower half portion of the front end face of the base 100, and the tops of the two ends of the arc plate 130 are symmetrically provided with limiting grooves 131.

As shown in fig. 3 and 4, the knob 200 includes a knob shaft 210, a housing 220, a support plate 230, a stopper 240 and a tension spring 250; the whole rotating handle 200 is a hollow cuboid, and a position, corresponding to the arc-shaped plate 130, on the shell 220 of the rotating handle 200 is provided with a limiting hole; one end of the knob shaft 210 is fixed on the knob 200, and the other end of the knob shaft passes through the base 100 and extends into the power distribution cabinet to be fixedly connected with the power connecting knife, so that the power connecting knife of the power distribution cabinet can be driven to be connected and disconnected; the limiting block 240 is a cuboid, the limiting block 240 is positioned inside the handle 200, one end of the limiting block passes through the limiting hole and extends out of the handle 200, and when the limiting block 240 is positioned at the lower half part of the limiting hole and the limiting hole is opposite to the limiting groove 131, the part of the limiting block 240 extending out of the handle 200 can be embedded into the limiting groove 131; one end of the tension spring 250 is fixed on the limiting block 240, and the other end of the tension spring is fixed at the lower end inside the knob 200, so that the limiting block 240 is positioned at the lower half part of the limiting hole under the action of only the external force of the tension spring 250.

Preferably, the length of the limiting hole is greater than twice the length of the limiting groove 131, so that the limiting block 240 can be separated from the limiting groove 131.

Preferably, the width of the limiting block 240, the width of the limiting hole and the width of the limiting groove 131 are the same, so that the limiting block 240 can move up and down along the limiting hole, and the left and right shaking cannot occur; the main body of the support plate 230 is plate-shaped, the number of the support plates 230 is two, and the two support plates 230 are symmetrically fixed on the inner wall of the knob 200.

Further, the stopper 240 is made of ferromagnetic metal capable of being attracted by a magnet.

The pneumatic device 300 includes a flow splitting assembly 310, a first pneumatic assembly 320, a second pneumatic assembly 330, and a square plate 340.

As shown in fig. 5 and 6, the flow dividing assembly 310 includes an inclined air duct 311, a rotating shaft 312, a rotating plate 313, a first sliding stop 314 and a second sliding stop 315; the inclined air duct 311 connects the first elastic membrane 321 in the first pneumatic assembly 320 with the second elastic membrane 331 in the second pneumatic assembly 330, and one end of the inclined air duct 311 close to the first elastic membrane 321 is higher than one end of the inclined air duct 311 close to the second pneumatic assembly 330, so that the whole inclined air duct 311 is in an inclined state; the middle positions of two sides of the inclined gas-guide tube 311 are respectively communicated with a first gas-guide tube 323 and a second gas-guide tube 333, and are used for conveying gas into the first gas-guide tube 323 and the second gas-guide tube 333; the rotating shaft 312 is located at the center of the inner part of the oblique air duct 311, and two ends of the rotating shaft are connected with the inner wall of the oblique air duct 311; the rotating shaft 312 is fixedly connected with two rotating pieces 313, and the two rotating pieces 313 are opposite; the main body of the rotating pieces 313 is a cuboid, and the two rotating pieces 313 are in sealed contact with the inner wall of the oblique air duct 311, so that the oblique air duct 311 is divided into two spaces which are not communicated; the first sliding stopper 314 and the second sliding stopper 315 are slidably attached to the inner wall of the oblique air duct 311, and the first sliding stopper 314 and the second sliding stopper 315 are centrosymmetric with respect to the rotating shaft 312; one end of the first sliding stop 314, which is far away from the second elastic membrane 331, is fixedly connected with the closer rotating sheet 313, and one end of the second sliding stop 315, which is far away from the first elastic membrane 321, is fixedly connected with the closer rotating sheet 313; the rotating plate 313 is made of a material having a deformation capability, so that when the rotating shaft 312 rotates to drive the rotating plate 313 to rotate, the first sliding block 314 or the second sliding block 315 can be pulled to slide on the inner wall of the inclined air duct 311 without being obstructed.

Preferably, the width of the first and second sliding

stoppers

314 and 315 is the same as the diameter of the opening of the first and second

gas guide tubes

323 and 333.

Preferably, the first sliding stopper 314 is heavier than the second sliding stopper 315 so that the first sliding stopper 314 does not block the opening of the first air duct 323 without receiving an external force.

The first pneumatic assembly 320 comprises a first elastic membrane 321, a first pressure spring 322, a first air duct 323, a first elastic capsule 324, a first elastic rope 325 and a magnet block 326; a first elastic membrane 321 is fixed on the end face of the knob 200 far away from the knob shaft 210, a first pressure spring 322 is fixed between the first elastic membrane 321 and the knob 200, and under the action of the first pressure spring 322, the first elastic membrane 321 is stretched into a hemispherical shape; the first airway tube 323 connects the first elastic membrane 321 with the interior of the first elastic bag 324 through the shunt assembly 310; the first elastic bag 324 is positioned inside the rotating handle 200, the first elastic bag 324 is fixed on the first air duct 323, and the first elastic bag 324 extends to a direction of the limiting block 240 to form a cylinder when being inflated and expanded; the magnet 326 is fixed at the bottom end of the first elastic bag 324, so that the magnet 326 approaches towards the limiting block 240 when the first elastic bag 324 is inflated; when the first elastic membrane 321 is not pressed, the first elastic bag 324 is in a contracted state, and when the first elastic membrane 321 is pressed, the internal air enters the inside of the first elastic bag 324 through the first air duct 323, so that the first elastic bag 324 is expanded; the second pneumatic assembly 330 comprises a second elastic membrane 331, a second compression spring 332, a second air duct 333, a second elastic bag 334 and a second elastic rope 335; a second elastic film 331 is fixed on the end surface of the knob 200 close to the knob shaft 210, a second pressure spring 332 is fixed between the second elastic film 331 and the knob 200, the second elastic film 331 is stretched into a hemispherical shape under the action of the second pressure spring 332, and the position of the second elastic film 331 is opposite to the position of the first elastic film 321; the second air duct 333 connects the second elastic diaphragm 331 and the interior of the second elastic bag 334 through the shunt assembly 310; the inflated shape of the second elastic bag 334 is '21274', the middle part of the second elastic bag is fixedly connected with the inner wall of the end face of the knob 200 close to the knob shaft 210, and the two arm parts are lapped on the supporting plate 230, so that the two arm parts can expand and contract along the supporting plate 230 when the second elastic bag 334 is inflated and deflated.

Further, as shown in fig. 7, there are a plurality of first elastic strings 325, one end of each first elastic string 325 is fixed to the inner surface of the first elastic bag 324, and the other end is fixed to the first air duct 323, so that the first elastic bags 324 can be better stacked together when being retracted after being evacuated.

Further, as shown in fig. 8, the number of the second elastic cords 335 is plural, and a plurality of the second elastic cords 335 are located inside two side portions of the second elastic bag 334, so that the two arm portions of the second elastic bag 334 can be better overlapped when being contracted.

As shown in fig. 9 and 10, the square plate 340 is lapped on the supporting plate 230, and the square plate 340 is fixed on the top ends of the two arm portions of the second elastic bag 334; when the second elastic membrane 331 is not squeezed, the second elastic bag 334 is in a contracted state, the square plate 340 is located between the first elastic bag 324 and the limiting block 240, when the second elastic membrane 331 is squeezed, the internal air enters the second elastic bag 334 through the second air duct 333, so that the second elastic bag 334 expands, the square plate 340 slides towards the direction away from the knob shaft 210, at the moment, the square plate 340 is no longer located between the first elastic bag 324 and the limiting block 240, and the square plate 340 passes through the shell 220 and extends out of the knob 200 to serve as a marking function.

Preferably, the first elastic membrane 321 and the second elastic membrane 331 are located on the portion of the knob 200 above the knob shaft 210, so that the knob 200 can be conveniently rotated after pressing the two buttons of the first elastic membrane 321 and the second elastic membrane 331.

Further, when the first elastic membrane 321 and the second elastic membrane 331 are not pressed, the first elastic bag 324 is in a contracted state and the second elastic bag 334 is in a contracted state, and the rotating handle 200 is in a locked state; when the first elastic membrane 321 is pressed and the second elastic membrane 331 is not pressed, the gas inside the first elastic membrane 321 is transported into the first gas-guiding tube 323 through the flow-dividing component 310; the first elastic bag 324 is in an expanded state and the second elastic bag 334 is in a contracted state, at this time, the first elastic bag 324 is blocked by the square plate 340 and cannot be close to the limiting block 240, so that the limiting block 240 cannot move upwards under the attraction of the magnet block 326, and the rotating handle 200 is in a locked state; when the first elastic membrane 321 is not pressed and the second elastic membrane 331 is pressed, the gas inside the second elastic membrane 331 is transported into the second gas-guiding tube 333 through the flow dividing assembly 310; the first elastic bag 324 is in a contracted state and the second elastic bag 334 is in an expanded state, at this time, the first elastic bag 324 is far away from the limiting block 240, so that the limiting block 240 cannot move upwards under the attraction of the magnet 326, and the rotating handle 200 is in a locked state; when the first elastic membrane 321 and the second elastic membrane 331 are pressed simultaneously, the forces applied to the two ends of the rotating sheet 313 in the inclined gas-guiding tube 311 are cancelled out, so that the flow rates of the gas sent from the inclined gas-guiding tube 311 to the first gas-guiding tube 323 and the second gas-guiding tube 333 are not greatly different; the first elastic bag 324 and the second elastic bag 334 are in an expanded state, the square plate 340 is no longer located in the middle of the first elastic bag 324 and the limiting block 240, the first elastic bag 324 can just penetrate through the middle of the two arm parts of the second elastic bag 334, the magnet block 326 generates attraction force on the limiting block 240 at the moment, the attraction force is smaller than the resilience force of the first pressure spring 322 and larger than the sum of the tension force of the tension spring 250 and the gravity of the limiting block 240, and the limiting block 240 can move out of the limiting groove 131 under the action of the attraction force.

The mistake of preventing of high-low voltage distribution cabinet separating brake of this application embodiment touches device during the actual operation:

s1: when the operator needs to operate the device, the palm holds the knob 200 and presses the first elastic membrane 321 and the second elastic membrane 331 at the same time;

s2: when the square plate 340 is seen to extend out of the rotary handle 200, the magnet 326 is close to the limiting block 240, and the rotary handle 200 can be rotated when the rotary handle 200 is unlocked;

s3: the rotating handle 200 is rotated to the other side of the arc-shaped plate 130, then the palm pressing the first elastic membrane 321 and the second elastic membrane 331 is released, at this time, the square plate 340 is seen to return to the rotating handle 200 again, which indicates that the rotating handle 200 is in the locked state.

The technical scheme in the embodiment of the application at least has the following technical effects or advantages:

the technical problem that in the prior art, after a certain collision occurs to one of the buttons on the two sides of the knob 200 on the switch structure, the switch still can be separated from the locking state is solved, and the technical effect that when only one button on the knob 200 is collided and pressed, the switch cannot be separated from the locking state is achieved; the second elastic membrane 331 is located between the base 100 and the knob 200, and is hidden, and the two buttons of the first elastic membrane 321 and the second elastic membrane 331 are less likely to be collided and in a pressed state; a flow splitting assembly 310 is provided, which allows the flow rate of gas delivered to first and

second gas conduits

323, 333 to be kept from differing significantly by flow splitting assembly 310 when the operator simultaneously presses on first and second

flexible membranes

321, 331.

Examples

In consideration of the above-mentioned embodiment of the device for preventing accidental contact of the disconnecting switch of the high-low voltage power distribution cabinet, in the practical operation process, it is found that when the operator stops pressing the first elastic membrane 321 and the second elastic membrane 331, if the pressing of the second elastic membrane 331 is released first, the contraction of the second elastic capsule 334 is earlier than the contraction of the first elastic capsule 324, and at this time, the square plate 340 may block the first elastic capsule 324 or the magnet block 326, so that the contraction of the first elastic capsule 324 is hindered, and the first elastic capsule 324 may be damaged; therefore, the present embodiment is based on the above embodiments and performs certain optimization on the structure of the square plate 340.

As shown in fig. 11 and 12, the square plate 340 includes a supporting frame 341, a U-shaped groove 342, an arc-shaped rod 343, and an elastic connection cord 344; the shape of the supporting frame 341 is '21274', and a plurality of U-shaped grooves 342 are symmetrically and uniformly formed on two arms of the supporting frame 341; the depth of the U-shaped grooves 342 is the same as the diameter of the cross section circle of the straight rod part of the arc-shaped rods 343, and the number of the arc-shaped rods 343 is one half of the number of the U-shaped grooves 342; the middle position of the arc-shaped rod 343 is arranged to be arc-shaped; the two ends of the arc-shaped rod 343 are straight rod-shaped, so that the two ends of the arc-shaped rod 343 are supported in the U-shaped groove 342.

As shown in fig. 13 and 14, the number of the elastic connection ropes 344 is the same as the number of the U-shaped grooves 342, one end of each elastic connection rope 344 is fixed below the corresponding U-shaped groove 342, and the other end of each elastic connection rope 344 is fixed on the end surface of the corresponding arc-shaped rod 343, so that the two ends of the arc-shaped rod 343 are located in the corresponding U-shaped grooves 342 under the elastic force of the elastic connection ropes 344; the two ends of the arc-shaped rod 343 are only connected with the elastic connecting rope 344, so that the arc-shaped rod 343 can rotate; the arc at the middle arc part of the arc-shaped rods 343 is a minor arc, so that two adjacent arc-shaped rods 343 can not collide with each other after rotating in the same direction by 90 degrees.

Further, when the square plate 340 is pressed by the first elastic bag 324 from above the U-shaped groove 342, the U-shaped groove 342 blocks the arc-shaped rod 343, and the middle of the arc-shaped rod 343 is arc-shaped, so that the arc-shaped rod 343 cannot be separated from the U-shaped groove 342, and the first elastic bag 324 cannot pass through the square plate 340.

Further, when the second elastic bag 334 contracts earlier than the first elastic bag 324, if the square plate 340 blocks the first elastic bag 324 or the magnet block 326, since the square plate 340 is subjected to a pulling force of the first elastic bag 324 upwards from the lower side of the U-shaped groove 342, the arc-shaped rod 343 in contact with the first elastic bag 324 is separated from the U-shaped groove 342, so that the first elastic bag 324 can contract back unimpededly, and after the first elastic bag 324 contracts back, the arc-shaped rod 343 separated from the U-shaped groove 342 returns back to the corresponding U-shaped groove 342 under the pulling force of the elastic connecting rope 344.

Further, when the second elastic bag 334 expands to push the square plate 340 out of the housing 220 and extend out of the knob 200, the plurality of arc rods 343 are rotated by 90 degrees under the action of the housing 220, so that the square plate 340 can pass through the housing 220 without being obstructed.

the technical problem that if the contraction of the second elastic bag 334 is earlier than that of the first elastic bag 324, and the square plate 340 blocks the first elastic bag 324 or the magnet block 326, the contraction of the first elastic bag 324 is hindered, and meanwhile, the first elastic bag 324 is damaged to a certain extent is solved, and when the contraction of the second elastic bag 334 is earlier than that of the first elastic bag 324, and the square plate 340 blocks the first elastic bag 324 or the magnet block 326, the first elastic bag 324 can be retracted without being hindered under the matching of the arc-shaped rod 343 and the elastic connecting rope 344.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a device is touched to mistake that prevents of high-low voltage distribution cabinet separating brake, includes base (100) and twist grip (200), twist grip (200) include stopper (240) and extension spring (250);

characterized in that it also comprises a pneumatic device (300);

the tension spring (250) is fixed between the limiting block (240) and the knob (200);

the limiting block (240) is made of ferromagnetic metal capable of being attracted by a magnet;

the pneumatic device (300) comprises a first pneumatic assembly (320), a second pneumatic assembly (330) and a square plate (340);

the first pneumatic assembly (320) comprises a first resilient capsule (324) and a magnet block (326);

the magnet block (326) is fixed on the first elastic bag (324), and the magnet block (326) can be close to the limiting block (240) from a far position when the first elastic bag (324) is inflated and expanded;

the second pneumatic assembly (330) includes a second resilient bladder (334);

the second elastomeric bladder (334) is shaped as a '21274' when inflated;

the square plate (340) is fixed on the second elastic bag (334), when the second elastic bag (334) contracts, the square plate (340) is positioned between the first elastic bag (324) and the limiting block (240), and when the second elastic bag (334) inflates and expands, the square plate (340) is driven to slide, so that the magnet block (326) can be close to the limiting block (240);

the base (100) is square and comprises an arc-shaped plate (130) and a limiting groove (131);

the arc-shaped plate (130) is fixed on the lower half part of the front end surface of the base (100), and limiting grooves (131) are symmetrically formed in the tops of two ends of the arc-shaped plate (130);

the whole rotating handle (200) is a hollow cuboid, and a position, corresponding to the arc-shaped plate (130), on the shell (220) of the rotating handle (200) is provided with a limiting hole;

the rotating handle (200) further comprises a supporting plate (230);

the main body of the support plate (230) is plate-shaped, the number of the support plates (230) is two, and the two support plates (230) are symmetrically fixed on the inner wall of the knob (200);

the length of the limiting hole is larger than twice that of the limiting groove (131), so that the limiting block (240) can be separated from the limiting groove (131);

the width of the limiting block (240), the width of the limiting hole and the width of the limiting groove (131) are the same, so that the limiting block (240) can move up and down along the limiting hole, and the left and right shaking cannot occur;

the pneumatic device (300) includes a further flow diversion assembly (310);

the flow distribution assembly (310) comprises an inclined air guide pipe (311), a rotating shaft (312) and a rotating sheet (313);

the inclined air duct (311) is used for communicating a first elastic membrane (321) in the first pneumatic assembly (320) with a second elastic membrane (331) in the second pneumatic assembly (330), and one end, close to the first elastic membrane (321), of the inclined air duct (311) is higher than one end, close to the second pneumatic assembly (330), of the inclined air duct (311), so that the whole inclined air duct (311) is in an inclined state;

the middle positions of two sides of the oblique gas-guide tube (311) are respectively communicated with a first gas-guide tube (323) and a second gas-guide tube (333) and used for conveying gas into the first gas-guide tube (323) and the second gas-guide tube (333);

the rotating shaft (312) is positioned at the center of the inner part of the oblique air duct (311), and two ends of the rotating shaft are connected with the inner wall of the oblique air duct (311);

the rotating shaft (312) is fixedly connected with two rotating pieces (313), and the two rotating pieces (313) are opposite in position;

the main body of the rotating sheet (313) is a cuboid, and the two rotating sheets (313) are in sealed contact with the inner wall of the oblique air duct (311), so that the oblique air duct (311) is divided into two non-communicated spaces;

the flow diversion assembly (310) further comprises a first sliding stop (314) and a second sliding stop (315);

the first sliding block (314) and the second sliding block (315) are attached to the inner wall of the inclined air duct (311) in a sliding manner, and the first sliding block (314) and the second sliding block (315) are centrosymmetric relative to the rotating shaft (312);

one end of the first sliding stop block (314), which is far away from the second elastic membrane (331), is fixedly connected with the rotating sheet (313) which is closer in distance, and one end of the second sliding stop block (315), which is far away from the first elastic membrane (321), is fixedly connected with the rotating sheet (313) which is closer in distance;

the rotating sheet (313) is made of a material with deformation capacity, so that when the rotating shaft (312) rotates to drive the rotating sheet (313) to rotate, the first sliding stop block (314) or the second sliding stop block (315) can be pulled to slide on the inner wall of the inclined air duct (311) without being blocked;

the width of the first sliding stop (314) and the second sliding stop (315) is the same as the diameter of the opening of the first air duct (323) and the second air duct (333);

the first sliding stop (314) is heavier than the second sliding stop (315), so that the first sliding stop (314) does not block the opening of the first air duct (323) under the condition of no external force;

the first pneumatic assembly (320) further comprises a first elastic membrane (321), a first pressure spring (322), a first air duct (323) and a first elastic rope (325);

a first elastic membrane (321) is fixed on the end face, away from the knob shaft (210), of the knob (200), a first pressure spring (322) is fixed between the first elastic membrane (321) and the knob (200), and under the action of the first pressure spring (322), the first elastic membrane (321) is stretched into a hemispherical shape;

the first gas-guide tube (323) connects the first elastic membrane (321) and the interior of the first elastic bag (324) through the shunt assembly (310);

the first elastic bag (324) is positioned inside the rotating handle (200), the first elastic bag (324) is fixed on the first air duct (323), and the first elastic bag (324) extends to a direction of the limiting block (240) to form a cylinder when being inflated and expanded;

the number of the first elastic ropes (325) is multiple, one end of each first elastic rope (325) is fixed on the inner surface of the first elastic bag (324), and the other end of each first elastic rope is fixed on the first air duct (323), so that the first elastic bags (324) can be better overlapped when being retracted after air suction;

the magnet block (326) is fixed at one end of the first elastic bag (324) close to the limiting block (240);

the second pneumatic assembly (330) further comprises a second elastic membrane (331), a second pressure spring (332), a second air duct (333) and a second elastic rope (335);

a second elastic film (331) is fixed on the end face of the rotating handle (200) close to the rotating handle shaft (210), a second pressure spring (332) is fixed between the second elastic film (331) and the rotating handle (200), the second elastic film (331) is supported into a hemispherical shape under the action of the second pressure spring (332), and the position of the second elastic film (331) is opposite to the first elastic film (321);

the second air duct (333) is used for communicating the second elastic membrane (331) with the interior of the second elastic bag (334) through the shunt assembly (310).

2. The device for preventing the mistaken touch of the separating brake of the high-low voltage power distribution cabinet according to claim 1, wherein the shape of the second elastic bag (334) after inflation is a '21274', the middle part of the second elastic bag is fixedly connected with the inner wall of the end face, close to the knob shaft (210), of the knob (200), and the two arm parts are lapped on the supporting plate (230), so that the two arm parts can expand and contract along the supporting plate (230) when the second elastic bag (334) is inflated and deflated;

the number of the second elastic ropes (335) is multiple, and the multiple second elastic ropes (335) are positioned inside the two sides of the second elastic bag (334), so that the two arm parts of the second elastic bag (334) can be better overlapped when being contracted.

3. The device for preventing the accidental contact of the disconnecting switch of the high-low voltage distribution cabinet according to claim 2, characterized in that the square plate (340) is lapped on the supporting plate (230), and the square plate (340) is fixed on the top ends of the two arm parts of the second elastic bag (334);

when the second elastic membrane (331) is not squeezed, the second elastic bag (334) is in a contracted state, the square plate (340) is positioned in the middle of the first elastic bag (324) and the limiting block (240), when the second elastic membrane (331) is squeezed, internal air can enter the second elastic bag (334) through the second air duct (333), so that the second elastic bag (334) is expanded, the square plate (340) slides towards the direction away from the knob shaft (210), the square plate (340) is not positioned in the middle of the first elastic bag (324) and the limiting block (240) any more at the moment, and the square plate (340) penetrates through the shell (220) and extends out of the knob (200) to serve as an identification function.

4. The device for preventing the false touch of the disconnecting switch of the high-low voltage power distribution cabinet according to claim 1, wherein the square plate (340) comprises a supporting frame (341), a U-shaped groove (342) and an arc-shaped rod (343);

the shape of the supporting frame (341) is '21274', and a plurality of U-shaped grooves (342) are symmetrically and uniformly formed on two arms of the supporting frame (341);

the depth of the U-shaped grooves (342) is the same as the diameter of a cross section circle of a straight rod part of the arc-shaped rods (343), and the number of the arc-shaped rods (343) is the same as one half of the number of the U-shaped grooves (342);

the middle position of the arc-shaped rod (343) is arranged to be arc-shaped, when the square plate (340) is pressed by the first elastic bag (324) downwards from the upper part of the U-shaped groove (342), the arc-shaped rod (343) is clamped by the U-shaped groove (342), and the middle of the arc-shaped rod (343) is arc-shaped, so that the arc-shaped rod (343) cannot be separated from the U-shaped groove (342), and the first elastic bag (324) cannot penetrate through the square plate (340);

the both ends position of arc pole (343) is straight rod shape, makes things convenient for the both ends of arc pole (343) to lean on in U type groove (342).

5. The device for preventing accidental contact of the disconnecting switch of the high-low voltage distribution cabinet according to claim 4, characterized in that the square plate (340) further comprises an elastic connecting rope (344);

the number of the elastic connecting ropes (344) is the same as that of the U-shaped grooves (342), one end of each elastic connecting rope (344) is fixed below the corresponding U-shaped groove (342), and the other end of each elastic connecting rope (344) is fixed on the end face of the corresponding arc-shaped rod (343), so that the two ends of each arc-shaped rod (343) are located in the corresponding U-shaped groove (342) under the elastic action of the elastic connecting ropes (344);

two ends of the arc-shaped rod (343) are only connected with elastic connecting ropes (344), so that the arc-shaped rod (343) can rotate;

the arc at the middle arc part of the arc-shaped rods (343) is a minor arc, so that two adjacent arc-shaped rods (343) can not collide with each other after rotating for 90 degrees along the rod length direction in the same direction.