CN211628925U - Circuit breaker and lower door interlocking device in solid insulation switch cabinet - Google Patents

Circuit breaker and lower door interlocking device in solid insulation switch cabinet Download PDF

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Publication number
CN211628925U
CN211628925U CN201922097561.9U CN201922097561U CN211628925U CN 211628925 U CN211628925 U CN 211628925U CN 201922097561 U CN201922097561 U CN 201922097561U CN 211628925 U CN211628925 U CN 211628925U
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CN
China
Prior art keywords
plate
cabinet body
lower door
locking
panel
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Expired - Fee Related
Application number
CN201922097561.9U
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Chinese (zh)
Inventor
潘巨源
王金方
柯昌伟
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Xinji Electric Appliance Co ltd
Original Assignee
Xinji Electric Appliance Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Priority to CN201922097561.9U priority Critical patent/CN211628925U/en
Application granted granted Critical
Publication of CN211628925U publication Critical patent/CN211628925U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model discloses a circuit breaker and lower door interlock among solid insulated switchgear, the intelligent cabinet temperature adjusting device comprises a cabinet body, it is provided with the isolation operation axle to rotate in the cabinet body, be provided with the panel on the cabinet body, be provided with the operation window on the panel, it is provided with the connecting plate to slide in the cabinet body, screw-thread fit has the isolation main shaft on the connecting plate, keep apart main shaft and isolation operation axle transmission, it is provided with the shielding plate to slide on the panel, be provided with the handle hole on the shielding plate, wear to be equipped with the lockpin on the cabinet body, be connected with the lockpin on the lockpin, it has reset spring to contradict between the cabinet body and the lockplate, be provided with the swing board on the panel, swing board one end is contradicted and is followed formation spacing to the locking plate under the constant head tank, be provided. The door interlocking device is simple and reasonable in structure, effectively achieves interlocking between the isolation operation shaft and the lower door, and guarantees safe use of the whole body.

Description

Circuit breaker and lower door interlocking device in solid insulation switch cabinet
Technical Field
The utility model belongs to the technical field of the vacuum circuit breaker technique and specifically relates to a circuit breaker and lower door interlock among solid insulated switchgear.
Background
The solid insulation switch cabinet is a combined device which completely and penetratively encapsulates a primary circuit by using a solid insulation material, and the combined device has the characteristics of small volume, high mechanical strength, strong environment adaptability and the like, is gradually replacing a gas insulation switch cabinet which uses SF6 gas as an insulation medium, and is a mainstream direction for the development of medium-voltage switch equipment in the future.
The isolating switch of the existing solid insulation switch cabinet adopts a form of a direct-acting isolating switch, the isolation and grounding switch-off or switch-on can be realized by operating the isolating switch, the direct-acting isolating switch mainly isolates the transmission of a main shaft by operation, the isolating main shaft adopts a screw rod structure, a connecting plate is in threaded fit on the screw rod, the connecting plate is arranged in the switch cabinet body in a sliding manner, the limitation on the rotation of the connecting plate is realized, therefore, when the isolating main shaft is operated to rotate, the connecting plate can be pushed forwards and backwards in the cabinet body, the connecting plate is driven to be connected to the structure on the connecting plate, and the switch-off and switch-. When the solid insulation switch cabinet is operated, in order to ensure the operation safety, when the isolating switch is in a closing state, the lower door of the whole switch cabinet cannot be operated to be opened for maintenance, similarly, when the lower door is opened, the isolating switch needs to be in a switching-off state and cannot be operated to be closed, and after the lower door is closed, the isolating switch can be operated to be closed; at present, the solid insulation switch cabinet usually adopts an interlocking structure to meet the operation requirements, so that misoperation is avoided, and safety accidents are caused, but the existing interlocking mechanism has a complex structure, numerous parts, difficult installation and maintenance and difficult replacement, and is not favorable for the operation of a user.
SUMMERY OF THE UTILITY MODEL
The utility model provides a to prior art not enough, the utility model provides a circuit breaker and lower door interlock among solid insulated switchgear, its simple structure is reasonable, effectively realizes keeping apart interlocking between operation axle and the lower door, guarantees holistic safe handling.
The utility model provides a circuit breaker and lower door interlocking device in a solid insulation switch cabinet, which comprises a cabinet body, wherein an isolation operation shaft is rotatably arranged in the cabinet body, a panel is arranged on the cabinet body, an operation window for operating the opening or closing of the isolation operation shaft is arranged on the panel, a connecting frame is arranged in the cabinet body, a connecting plate is slidably arranged on the connecting frame, an isolation main shaft is in threaded fit on the connecting plate, the isolation main shaft is rotatably arranged in the cabinet body and is in transmission fit with the isolation operation shaft, a shielding plate is slidably arranged on the panel, an operation hole is arranged on the shielding plate corresponding to the position of the operation window, a lock pin for locking a lower door is arranged on the lower edge of the cabinet body in a penetrating way, a locking plate is connected on the lock pin, a reset spring is sleeved on the lock pin and is abutted between the cabinet body and the locking plate, a swinging plate for limiting the lock pin to retract into the cabinet body to open the lower door when, the swing plate swings and is arranged at the corresponding position of the locking plate, the upper end of the swing plate is a contact end, the lower end of the swing plate is a limiting end, the limiting end of the swing plate is abutted to the lower edge of the positioning groove to limit the sliding of the locking plate, a transmission part is arranged between the connecting plate and the swing plate to form the distance from the limiting end to the lower edge of the positioning groove, a reset torsion spring used for resetting the swing plate to enable the limiting end to be abutted to the lower edge of the positioning groove to limit the sliding of the locking plate is arranged on the swing seat, and a lower door linkage piece used for limiting the sliding of the shielding plate to enable the operation window to coincide with the operation hole when the lock pin retracts into.
The beneficial effect who so sets up is: by adopting the scheme, the isolation operation shaft is switched on, the lock pin limiting part limits the lock pin to retract into the cabinet body, so that the lower door cannot be opened, the misoperation of opening the lower door under the electrified state is avoided, after the isolation operation shaft is switched off, the connecting plate applies acting force to the abutting part, the limiting part is far away from the lower edge of the positioning groove, the swinging plate is enabled to release the sliding locking of the locking plate, the locking plate can bounce under the action of the reset spring, so that the lock pin can retract into the cabinet body, and the lower door can be opened, the lower door of the solid insulation switch cabinet adopts a vertical sliding mode, when the lock pin can retract into the cabinet body, the lower door can be pushed upwards without being abutted by the lock pin, and simultaneously, because the lock pin and the lower door have a connection relation, the lock plate is driven to move upwards after the lower door is opened, the upper door and lower door linkage part of the locking plate can limit the sliding of the, after the lower door is closed, the locking plate is driven to move downwards, the lower door linkage piece is driven to release the locking of the shielding plate, and the closing operation of the isolation operation shaft can be performed. And can effectively realize the interlocking between the isolation operation shaft and the lower door, and ensure the safe use of the whole body.
The utility model discloses further set up as the driving medium is the arm of contradicting, the arm setting of contradicting is on the connecting plate and towards swing board conflict end setting, conflict arm conflict forms keeping away from of spacing end pair constant head tank lower limb at swing board conflict end.
The beneficial effect who so sets up is: by adopting the scheme, the contact arm is arranged, when the isolation operation shaft is at the switching-on position, the contact arm on the connecting plate can not contact the contact end at the moment, the swing plate enables the limit end to abut against the lower edge of the positioning groove under the action of the reset torsion spring, so that the locking plate can not bounce under the action of the reset torsion spring, the lock pin is exposed outside the cabinet body, so that the lower door can not be opened, the danger caused by opening the lower door when the isolating switch and the grounding switch are in a closing state is avoided, after the opening of the isolation operation shaft is completed, the connecting plate advances to make the contact arm contact against the contact end, so that the swinging plate can swing to enable the limiting end to tilt and be far away from the lower edge of the positioning groove, the locking plate can slide under the action of the reset spring, therefore, the lock pin can be immersed into the cabinet body to unlock the lower door, the structure is simple, the realization is facilitated, and the good interlocking effect of the upper door and the lower door is achieved.
The utility model discloses further set up to the constant head tank has been seted up on the lockplate, it is provided with the swing seat to correspond the constant head tank position on the panel, the swing of swing board sets up on the swing seat.
The beneficial effect who sets up like this is, adopts above-mentioned scheme, and the lockplate passes through the cooperation of sliding of constant head tank and swing seat, and the slip has certain guide effect like this, and simple structure does benefit to the realization simultaneously, increases the gliding stability of lockplate, improves the result of use.
The utility model discloses further set up as it is protruding that the linkage is the locking down, the setting of locking arch is on the lockplate and towards the shielding plate setting, the shielding plate border is formed with the locking flange, the locking arch is contradicted with the locking flange and is formed spacing to the shielding plate is gliding.
The beneficial effect who sets up like this is, adopt above-mentioned scheme, set up the linkage of lower door into the locking arch, the locking arch can keep off in locking flange one side, when operation shielding plate slided, the conflict takes place for the locking arch and locking flange, thereby make the shielding plate can not slide, avoid handle hole and operation window coincidence and operate the isolation operating axis, close the back under, drive the lockplate and move down, thereby make the locking arch keep away from the locking flange, thereby relieve the locking to the shielding plate, can keep apart the combined floodgate operation of operating axis, set up simple structure like this, do benefit to the operation, improve holistic result of use, and availability factor. And can effectively realize the interlocking between the isolation operation shaft and the lower door, and ensure the safe use of the whole body.
The utility model discloses further set up to the shielding plate extends outward to have operating handle, it is provided with the groove of sliding to correspond the operating handle position on the panel along width direction, it is provided with the sign arch to slide inslot wall interval.
The beneficial effect who so sets up is: by adopting the scheme, the operating handle is arranged, so that an operator can operate conveniently, the mark is arranged in a protruding mode, the handle can be clamped in the mark in the protruding mode when sliding, the handle can be positioned, the operator can observe conveniently, and the structure is simple and beneficial to implementation.
Drawings
Fig. 1 is a schematic overall structure diagram of an embodiment of the present invention;
FIG. 2 is a schematic view of the internal structure of the embodiment of the present invention;
fig. 3 is a schematic structural view of the panel of the embodiment of the present invention after perspective;
FIG. 4 is a schematic view of a cross-sectional structure of the electric linkage plate according to an embodiment of the present invention;
fig. 5 is a rear view of a panel in an embodiment of the present invention;
FIG. 6 is a schematic cross-sectional view of the position of the isolation link plate according to the embodiment of the present invention;
fig. 7 is a schematic cross-sectional view of the position of the swing plate according to the embodiment of the present invention.
Detailed Description
Fig. 1 to 7 disclose a circuit breaker and lower door interlock device in a solid insulated switchgear, including a cabinet body 1, the cabinet body 1 is provided with a switching-off half shaft, a switching-on half shaft and an isolation operation shaft 13 in a rotating manner, the cabinet body 1 is provided with a panel 2, the panel 2 is provided with a switching-on window 21 for operating the switching-on half shaft switching-on operation, a switching-off window 22 for operating the switching-off half shaft switching-off operation and an operation window 23 for operating the isolation operation shaft 13 to switch off or switch on, the panel 2 is provided with a shielding plate 3 in a sliding manner, the shielding plate 3 is provided with an operation hole 32 corresponding to the operation window 23, the cabinet body 1 is provided with a power connection linkage member 6 for limiting the shielding plate 3 to slide after the switching-on half shaft is switched on so as to enable the operation hole 32 to coincide with the operation window 23, the shielding plate 3 extends to form a blocking piece 31 towards the switching-on window 21, the cabinet body 1 is further provided with an isolation linkage member for limiting the blocking piece 31 to expose the 7, a lock pin 4 for locking the lower door is arranged on the lower edge of the cabinet body 1 in a penetrating manner, a locking plate 41 is connected to the lock pin 4, a return spring 43 is sleeved on the lock pin 4, the return spring 43 abuts against the space between the cabinet body 1 and the locking plate 41, a lock pin limiting part for limiting the lock pin 4 to retract into the cabinet body 1 to open the lower door when the isolation operation shaft 13 is switched on is further arranged in the cabinet body 1, the locking plate 41 extends towards the shielding plate 3 to limit the shielding plate 3 to slide so that the operation window 23 coincides with the operation hole 32 or expose the locking protrusion 43 of the closing window 21 when the lock pin 4 retracts into the cabinet body 1, a locking flange 34 is formed on the edge of the shielding plate 3, and the locking protrusion 43 and the locking flange 34 abut against each other to limit the sliding of the. The beneficial effect who so sets up is: by adopting the scheme, the switching-on half shaft is operated to rotate through the switching-on window 21, the operation mode can be that a push rod is driven to push through by pressing a button, a push plate is arranged on the switching-on half shaft, the push rod is abutted against the push plate so as to drive the switching-on half shaft to rotate, after the switching-on half shaft rotates and is switched on, the shielding plate 3 is limited by the electric linkage piece 6 so as to prevent the shielding plate 3 from sliding, so that the operation window 23 is superposed with the operation hole 32, thereby avoiding grounding and isolation in the charged state of the switching-on operation and avoiding unnecessary danger, meanwhile, in the state, as the isolation operation shaft 13 is switched on, the lock pin limiting piece limits the lock pin 4 to retract into the cabinet body 1, so that the lower door cannot be opened, the misoperation of opening the lower door in the charged state is avoided, and after the switching-off half shaft is operated to be switched, after the opening of the opening half shaft, the electric connecting linkage piece 6 resets to release the limit of the shielding plate 3, so that the shielding plate 3 can slide, so that the isolation operation shaft 13 can be operated to open and close, after the isolation operation shaft 13 is opened, the lock pin limiting piece releases the lock of the locking plate 41 in the sliding way, so that the locking plate 41 can bounce under the action of the reset spring 43, so that the lock pin 4 can retract into the cabinet body 1, so that the lower door can be opened, wherein the lower door of the solid insulated switchgear adopts a vertical sliding mode, when the lock pin 4 can retract into the cabinet body 1, the lower door can be pushed upwards without being interfered by the lock pin 4, meanwhile, the lock pin 4 and the lower door have a connection relationship, after the lower door is opened, the lock plate 41 is driven to move upwards, the lock protrusion 43 on the lock plate 41 can be blocked at one side of the lock blocking edge 34, when the shielding plate 3 is operated to slide, the locking protrusion 43 collides with the locking rib 34, so that the shielding plate 3 cannot slide, the operation of operating the isolation operating shaft 13 due to the coincidence of the operating hole 32 and the operating window 23 is avoided, the locking plate 41 is driven to move downwards after the lower door is closed, the locking protrusion 43 is far away from the locking rib 34, the shielding plate 3 is unlocked, other operations can be performed, the structure is simple, the operation is facilitated, the integral using effect is improved, and the using efficiency is improved. And the interlocking among the isolation operation shaft 13, the closing half shaft, the opening half shaft and the lower door can be effectively realized, and the integral safe use is ensured.
The operation main shaft 12 is rotatably arranged in the cabinet body 1, the operation main shaft 12 is in transmission connection with a closing half shaft and an opening half shaft, the operation main shaft 12 is connected with a swing rod 121, a connecting protrusion 122 is arranged on the swing rod 121, the electric connecting linkage member 6 is arranged in the cabinet body 1 in a sliding mode along the height direction, a connecting hole 61 is formed in the position, corresponding to the connecting protrusion 122, of the electric connecting linkage member 6, the connecting hole 61 and the connecting protrusion 122 are in clearance fit to form driving of the operation main shaft 12 to slide on the electric connecting linkage member 6, an electric connection limiting block 62 is further arranged on the electric connecting linkage member 6, an electric connection retaining edge 33 is arranged on the side wall of the shielding plate 3, and the electric connection limiting block 62 abuts against the electric connection retaining edge 33 to form limiting of. The beneficial effect who so sets up is: by adopting the scheme, the operation main shaft 12 in the cabinet body 1 is linked with the closing half shaft and the opening half shaft, after the closing half shaft or the opening half shaft rotates, the operation main shaft 12 is driven to rotate forwards or backwards, so as to carry out power connection or power off, when the closing is carried out, the electric connecting linkage piece 6 is stirred to slide along the height direction through the clearance fit of the connecting hole 61 and the connecting bulge 122 through the swing rod 121 arranged on the operation main shaft 12, so that the electric connecting limiting block 62 on the electric connecting linkage piece 6 moves to the position of the electric connecting flange 33, so as to be clamped on the side surface of the electric connecting flange 33 and limit the pushing of the shielding plate 3, after the opening, as the operation main shaft 12 rotates backwards, the swing rod 121 is driven to move backwards, so as to drive the electric connecting linkage piece 6 to move and reset, so that the electric connecting limiting block 62 on the electric connecting linkage piece 6 is far away from the electric connecting flange, make shielding plate 3 can slide and make handle hole 32 and operation window 23 coincidence to keep apart the operation of operation axle 13, this kind of simple structure does benefit to the operation, and the debugging is also simple, and after the installation, according to the displacement, can change the welding with the stopper position, guarantees the spacing effect of contradicting, improves overall structure's result of use.
The cabinet body 1 is further provided with a counter 63, the swing arm of the counter 63 is rotatably connected with the power connection linkage part 6, and the panel 2 is provided with a counting window 25 corresponding to the position of the counter 63. The beneficial effect who so sets up is: adopt above-mentioned scheme, set up counter 63, its count swing arm is connected on connecing electric linkage 6, slides along with the locating part, drives counter 63 swing arm swing to accomplish the count operation, the divide-shut brake number of times that can whole equipment of convenient efficient record, for follow-up maintenance overhauls provides data support, simple structure does benefit to the operation and observes simultaneously, improves the whole result of use who separates the structure.
The cabinet body 1 is provided with a connecting frame 11, the connecting frame 11 is provided with a connecting plate 15 in a sliding way, an isolation main shaft 14 is in threaded fit with the connecting plate 15, the isolation main shaft 14 is rotatably arranged in the cabinet body 1 and is in transmission fit with the isolation operating shaft 13, the isolation linkage piece 7 is arranged on the connecting frame 11 in a sliding way along the height direction, a connecting lever 74 is connected on the connecting frame 11 in a swinging way, one end of the crank arm 74 is connected with a push rod 73, the other end is connected with the isolation linkage member 7, the connecting plate 15 is abutted against the push rod 73 to form driving for the isolation linkage member 7 to slide on the connecting frame 11, a position limiting hook 71 is arranged on the isolation linkage piece 7 corresponding to the position of the shielding plate 3, an isolation bulge 35 is arranged on the shielding plate 3, the limit hook 71 abuts against the isolation protrusion 35 to limit the shutter 3 to slide and expose the closing window 21, and the push rod 73 is further connected with a reset assembly for resetting the isolation linkage member 7. The beneficial effect who so sets up is: by adopting the above scheme, the isolation linkage member 7 is arranged in such a way that when the isolation operation shaft 13 is operated to switch on and off, the isolation main shaft 14 is driven to rotate, the transmission between the isolation main shaft 14 and the isolation operation shaft 13 can adopt gear transmission, which belongs to the prior art and is not described herein, the main shaft rotates to drive the connecting plate 15 in threaded fit with the main shaft to slide, so as to complete the switching-off or switching-on action, the connecting plate 15 is abutted against the push rod 73 in the sliding process, the push rod 73 slides to push the crank arm 74, so as to realize the reversing of force to drive the isolation linkage member 7 to slide along the height direction, after the isolation operation shaft 13 completes the switching-off, the limit hook 71 on the isolation linkage member 7 is abutted against the isolation protrusion 35 on the side wall of the shielding plate 3, so as to limit the shielding plate 3 from further sliding to expose the switching-on window 21, when the isolation operation shaft 13 is switched on, the reset assembly resets the, the shielding plate 3 can slide to expose the switching-on window 21 for switching-on operation, the structure is simple, operation realization is facilitated, and the using effect of the whole equipment is effectively improved.
The reset assembly comprises a linkage plate 75 and a reset tension spring 752, wherein the linkage plate 75 is arranged on a connecting frame 11 in a sliding mode, one end of the linkage plate 75 is provided with a hook and hooked on a push rod 73, the other end of the linkage plate is provided with a guide groove, a guide block 16 is arranged on the connecting frame 11, the guide block 16 is matched with the guide groove in a sliding mode to form sliding of the linkage plate 75 on the connecting frame 11, the linkage plate 75 is further provided with a reset hook 751, and the reset tension spring 752 is hooked between the guide block 16 and the reset hook 751. The beneficial effect who so sets up is: adopt above-mentioned scheme, through this kind of reset structure, at the in-process that connecting plate 15 sliding assembly closed a floodgate, connecting plate 15 loses the conflict to push rod 73, make linkage plate 75 can reset under the effect of extension spring 752 that resets, thereby pulling push rod 73, drive turning arm 74 and rotate and reset, thereby it slides to drive isolation linkage piece 7, make spacing hook 71 no longer contradict the second limiting plate, make shielding plate 3 can slide and expose closing a floodgate window 21, the operation of closing a floodgate, this kind of simple structure does benefit to the realization, it is swift to reset.
Go back fixedly connected with on the above-mentioned crank arm 74 and instruct arm 76, instruct to be connected with sign 761 on the arm 76, it is provided with display window 24 to correspond sign 761 position on the panel 2, sign 761 is greater than the setting of display window 24. The beneficial effect who so sets up is: by adopting the scheme, the indication arm 76 rotates synchronously along with the crank arm 74, so that the state of the whole switch cabinet can be seen more visually after the operation of the isolation operation shaft 13 is indicated in time, the integral use effect is improved, and the further display window 24 is smaller than the indication plate 761, so that the indication plate 761 can well shield the display window 24, dirt is prevented from entering from the display window 24, the protection grade of the whole equipment is improved, and the protection grade of IP4X is reached.
The locating slot 42 has been seted up on above-mentioned lockplate 41, it is provided with swing seat 51 to correspond locating slot 42 position on panel 2, the lockpin locating part is swing board 5, swing board 5 swings and sets up on swing seat 51, swing board 5 upper end is for supporting the end, and the lower extreme is spacing end, the spacing end of swing board 5 is contradicted and is followed the spacing that forms the locking plate 41 and slide under locating slot 42, it has conflict arm 151 to extend to the conflict end on connecting plate 15, it contradicts and forms keeping away from of spacing end pair locating slot 42 lower limb at swing board 5 conflict to support the arm 151, be provided with on the swing seat 51 and be used for restoring to the swing board 5 and make spacing end contradict and limit the torsional spring 52 that resets that the locking plate 41 slided under locating slot 42. The beneficial effect who so sets up is: by adopting the above scheme, when the isolation operation shaft 13 is at the closing position, the abutting arm 151 on the connecting plate 15 cannot abut against the abutting end at this time, so that the swinging plate 5 abuts against the lower edge of the positioning groove 42 under the action of the reset torsion spring 52, the locking plate 41 cannot bounce under the action of the reset spring 43, the lock pin 4 is exposed outside the cabinet body 1, the lower door cannot be opened, the danger caused by opening the lower door when the isolation switch and the grounding switch are in the closing state is avoided, after the opening of the isolation operation shaft 13 is completed, the connecting plate 15 advances to abut against the abutting arm 151, so that the swinging plate 5 can swing, the limiting end tilts to be away from the lower edge of the positioning groove 42, the locking plate 41 can slide under the action of the reset spring 43, the lock pin 4 can sink into the cabinet body 1, the locking of the lower door is released, and the structure is simple, the realization is facilitated, and a good upper and lower door interlocking effect is achieved.
The baffle plate 3 extends to the outside of the panel 2 to be provided with an operating handle 36, a sliding groove 26 is arranged on the panel 2 along the width direction corresponding to the operating handle 36, and identification protrusions are arranged on the inner wall of the sliding groove 26 at intervals. The beneficial effect who so sets up is: adopt above-mentioned scheme, set up operating handle 36 and be convenient for the operator to operate, set up the sign arch simultaneously for when the handle slides, can block in the sign arch, realize the location to the handle, the operator of also being convenient for observes, this kind of simple structure does benefit to the realization.
The above-mentioned embodiments are only preferred embodiments of the present invention, and the scope of the present invention is not limited thereto, so that the equivalent changes made in the claims of the present invention, such as equivalent products with similar processes and similar structures, are also included in the scope of the present invention.

Claims (5)

1. The utility model provides a circuit breaker and lower door interlock among solid insulated switchgear, includes the cabinet body, it is provided with the isolation operation axle to rotate in the cabinet body, be provided with the panel on the cabinet body, be provided with the operation window that is used for operating isolation operation axle separating brake or combined floodgate on the panel, be provided with the link in the cabinet body, it is provided with the connecting plate to slide on the link, screw-thread fit has the isolation main shaft on the connecting plate, keep apart the main shaft and rotate the setting in the cabinet body and with keep apart operation axle transmission cooperation, its characterized in that: the door lock is characterized in that a shielding plate is arranged on the panel in a sliding manner, an operation hole is formed in the position, corresponding to the operation window, of the shielding plate, a lock pin for locking the lower door is arranged on the lower edge of the cabinet body in a penetrating manner, a locking plate is connected onto the lock pin, a reset spring is sleeved on the lock pin and abutted against the position between the cabinet body and the locking plate, a swinging plate for limiting the lock pin to retract into the cabinet body to open the lower door when an isolation operation shaft is switched on is arranged on the panel, the swinging plate is arranged at the corresponding position of the locking plate in a swinging manner, the upper end of the swinging plate is an abutting end, the lower end of the swinging plate is a limiting end, the limiting end of the swinging plate is abutted against the lower edge of the positioning groove to form limiting for sliding of the locking plate, a transmission part is arranged between the connecting plate and the swinging plate to form driving for limiting the, and a lower door linkage piece used for limiting the shielding plate to slide when the lock pin retracts into the cabinet body so as to enable the operation window to coincide with the operation hole is also arranged between the locking plate and the shielding plate.
2. The circuit breaker and lower door interlock in a solid insulated switchgear cabinet of claim 1, wherein: the driving medium is the conflict arm, the arm setting of keeping in touch is on the connecting plate and towards swing board butt end setting, the arm is contradicted and is formed keeping away from of spacing end to constant head tank lower limb at swing board butt end.
3. The circuit breaker and lower door interlock in a solid insulated switchgear cabinet of claim 2, wherein: the locking plate is provided with a positioning groove, a swing seat is arranged on the panel corresponding to the positioning groove, and the swing plate is arranged on the swing seat in a swinging mode.
4. A circuit breaker and lower door interlock in a solid insulated switchgear cabinet as claimed in claim 1 or 2 or 3 wherein: the lower door linkage piece is a locking protrusion, the locking protrusion is arranged on the locking plate and faces the shielding plate, a locking flange is formed on the edge of the shielding plate, and the locking protrusion and the locking flange are abutted to limit the sliding of the shielding plate.
5. The circuit breaker and lower door interlock in a solid insulated switchgear cabinet of claim 1, wherein: the shielding plate extends outward to have operating handle, it is provided with the groove of sliding to correspond the operating handle position on the panel along width direction, it is protruding that the inslot wall interval of sliding is provided with the sign.
CN201922097561.9U 2019-11-28 2019-11-28 Circuit breaker and lower door interlocking device in solid insulation switch cabinet Expired - Fee Related CN211628925U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201922097561.9U CN211628925U (en) 2019-11-28 2019-11-28 Circuit breaker and lower door interlocking device in solid insulation switch cabinet

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201922097561.9U CN211628925U (en) 2019-11-28 2019-11-28 Circuit breaker and lower door interlocking device in solid insulation switch cabinet

Publications (1)

Publication Number Publication Date
CN211628925U true CN211628925U (en) 2020-10-02

Family

ID=72627111

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201922097561.9U Expired - Fee Related CN211628925U (en) 2019-11-28 2019-11-28 Circuit breaker and lower door interlocking device in solid insulation switch cabinet

Country Status (1)

Country Link
CN (1) CN211628925U (en)

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Address after: No.4, Dawei Road, Xinqiao street, Ouhai District, Wenzhou City, Zhejiang Province, 325000

Patentee after: XINJI ELECTRIC APPLIANCE Co.,Ltd.

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Granted publication date: 20201002