CN112259392B - Safety interlocking mechanism of mining safety type frequency converter - Google Patents
Safety interlocking mechanism of mining safety type frequency converter Download PDFInfo
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- CN112259392B CN112259392B CN202011058543.0A CN202011058543A CN112259392B CN 112259392 B CN112259392 B CN 112259392B CN 202011058543 A CN202011058543 A CN 202011058543A CN 112259392 B CN112259392 B CN 112259392B
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- cabinet door
- cabinet body
- shaft
- cabinet
- handle
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- 238000005065 mining Methods 0.000 title claims abstract description 25
- 238000009434 installation Methods 0.000 claims description 7
- 239000003921 oil Substances 0.000 claims description 6
- 230000000149 penetrating effect Effects 0.000 claims description 6
- 239000010687 lubricating oil Substances 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 2
- 238000003756 stirring Methods 0.000 claims description 2
- 230000000903 blocking effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000010892 electric spark Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/20—Interlocking, locking, or latching mechanisms
- H01H9/22—Interlocking, locking, or latching mechanisms for interlocking between casing, cover, or protective shutter and mechanism for operating contacts
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Casings For Electric Apparatus (AREA)
Abstract
The invention discloses a safety interlocking mechanism of a mining safety type frequency converter, which comprises the following components: the cabinet body and cabinet door are equipped with two support arms articulated with the cabinet body, be equipped with the back shaft of taking the sliding sleeve on two support arms respectively, two sliding sleeves are fixed mutually with the cabinet door respectively, be equipped with logical groove on two back shafts respectively, be equipped with the vertical axis between two sliding sleeves, be equipped with eccentric small posts on the vertical axis both ends face respectively, two small posts of vertical axis insert respectively to two logical grooves in, be equipped with the draw-in groove on the left and right sides of cabinet door respectively, be equipped with the draw-in groove on the cabinet body, be equipped with first lock tooth on the cabinet door inboard, be equipped with the second lock tooth on the cabinet body opening, be equipped with mount pad and operating shaft on the operating shaft, wear to be equipped with the interlock pole on the mount pad, be equipped with two constant head tanks on the border of positioning disk, wear to be equipped with the outer end on the cabinet body and take the connecting rod of button, the inner end area locating piece. The safety interlocking mechanism can interlock the opening and closing of the cabinet door and the on-off of the cabinet body.
Description
Technical Field
The invention relates to a mine safety type frequency converter, in particular to a safety interlocking mechanism of the mine safety type frequency converter.
Background
Because the mine safety type frequency converter is used under the mine, the mine safety type frequency converter needs to have a very high explosion-proof level, the mine safety type frequency converter comprises a cabinet body and a cabinet door, the on-off of an electric element in the cabinet body is controlled by an operation handle, the on-off of the electric element in the cabinet body can be conducted after the operation handle is rotated, but the opening and the closing of the cabinet door of the existing mine safety type frequency converter and the on-off of the cabinet body are not interlocked, so that the cabinet door can be opened under the condition of no power failure or the power can be easily conducted through the rotation of the operation handle under the condition that the cabinet door is not closed, and flammable gas in the mine is easily ignited by electric sparks in the cabinet body, so that explosion is caused.
Disclosure of Invention
The technical problems to be solved by the invention are as follows: the safety interlocking mechanism of the mining safety type frequency converter can enable the opening and closing of the cabinet door and the on-off of the internal of the cabinet to be interlocked.
In order to solve the problems, the invention adopts the following technical scheme: a safety interlock mechanism for a mining safety type frequency converter, comprising: the cabinet body and cabinet door, the vertical opening that is used for sealing the cabinet body that installs in one side of the cabinet body of cabinet door, its characterized in that: two support arms which are vertically arranged at intervals are arranged on the cabinet body at one side of the cabinet door, the two support arms are respectively hinged with the cabinet body, so that the two support arms can swing left and right, a support shaft which is horizontally arranged is respectively arranged on the two support arms, a sliding sleeve is respectively sleeved on the two support shafts, one ends of the two sliding sleeves are respectively fixed with the cabinet door, the two support arms can support the cabinet door through the two support shafts and the two sliding sleeves, the cabinet door can be rotated and opened, a through groove vertically penetrating through the supporting shafts is respectively arranged on the two supporting shafts, the two through grooves are vertically aligned, a vertical shaft is arranged between the two sliding sleeves, a handle for driving the vertical shaft to rotate is arranged in the middle of the vertical shaft, small columns eccentric to the vertical shaft are respectively arranged on two end faces of the vertical shaft, the two small columns are vertically aligned, two ends of the vertical shaft respectively penetrate through one side wall of the two sliding sleeves, the two small columns on the vertical shaft are respectively inserted into the two through grooves, after the vertical shaft is driven to rotate by the handle, the two small columns can swing to abut against the side wall of the through groove, then the two small columns can reversely drive the vertical shaft through pushing the side wall of the through groove, The two sliding sleeves and the cabinet door slide horizontally on the two supporting shafts, the left side and the right side of the cabinet door are respectively provided with a clamping edge which is vertically arranged, the cabinet body at the left side and the right side of the cabinet door is respectively provided with a clamping groove which is vertically arranged and can be used for clamping the clamping edge at the same side, the inner side of the cabinet door is provided with a first locking tooth, the opening edge of the cabinet body is provided with a second locking tooth, when the cabinet door is closed, the first locking tooth can swing inwards to the inner side of the second locking tooth, then the cabinet door is driven to translate to the position aligned with the inner side and the outer side of the second locking tooth through a handle, the two clamping edges are respectively clamped into the two clamping grooves, so that the cabinet door can block the first locking tooth through the second locking tooth and limit the clamping edge through the clamping groove to be locked on the cabinet body, when the cabinet door needs to be unlocked and opened, the cabinet door is driven by the handle to reversely translate, so that two clamping edges are respectively separated from two clamping grooves, and meanwhile, the first locking teeth and the second locking teeth are staggered, so that the clamping edges are not limited by the clamping grooves and the first locking teeth are not blocked by the second locking teeth, the cabinet door can be unlocked in such a way, the cabinet door can be opened in a rotating way, an installation seat and an operation shaft with a handle are further arranged on the cabinet body, after the operation shaft is rotated by the handle, electric elements in the cabinet body can be powered on and off, a locking disc with an avoidance notch is arranged on the operation shaft, a horizontally arranged interlocking rod is arranged on the installation seat in a penetrating way, a first reset spring sleeved on the interlocking rod and used for resetting the interlocking rod is arranged between the interlocking rod and the installation seat, when the operation shaft rotates to an energizing position for energizing the cabinet body, the lock disc edge can press the interlocking rod, so that the interlocking rod can compress the first reset spring to extend, the end part of the interlocking rod can block the cabinet door after extending, the cabinet door cannot be driven to reversely translate, the cabinet door cannot be unlocked so as to prevent the cabinet door from being opened when the cabinet body is energized, when the operation shaft rotates to a power-off position for energizing the cabinet body, the avoidance notch on the lock disc can rotate to be opposite to the interlocking rod, the lock disc can avoid the interlocking rod through the avoidance notch, so that the interlocking rod is not pressed, the interlocking rod can reset under the action of the first reset spring and does not block the cabinet door, the cabinet door can be driven to reversely translate to unlock, the interlocking rod can stop the operation shaft from rotating after abutting against the avoidance notch, so that the cabinet body cannot be electrified, the operation shaft is also provided with a positioning disc positioned in the cabinet body, the edge of the positioning disc is provided with two positioning grooves which are arranged at intervals, the cabinet body is also penetrated with a connecting rod, the outer end of the connecting rod is provided with a button, the inner end of the connecting rod is provided with a positioning block, the connecting rod between the button and the cabinet body is sheathed with a second reset spring, the button can outwards spring under the action of the second reset spring until the positioning block abuts against the inner wall of the cabinet body, when the operation shaft is positioned at an electrified position, the locating piece can block into one constant head tank and lock the operating shaft for the operating shaft can't rotate and switch to the outage position, only when the button is pressed, make the locating piece inwards move and break away from the constant head tank after, the operating shaft can only be driven to rotate to the outage position, when the operating shaft is located the outage position, the locating piece can block into another constant head tank and lock the operating shaft, make the operating shaft can't rotate and switch to the circular telegram position, only manually stir the interlock lever and make the interlock lever not prevent the operating shaft rotation, after the button was pressed, the operating shaft can only be driven to rotate to the circular telegram position.
Further, the safety interlocking mechanism of the mining safety type frequency converter, wherein: the structure of the vertical shaft comprises: the two short shafts and the connecting sleeve are arranged in an up-down alignment way, the connecting sleeve is positioned between the two short shafts, the inner ends of the two short shafts are respectively inserted into the two ends of the connecting sleeve, and each short shaft is fixed with the connecting sleeve by screwing a screw and a nut which penetrate through the connecting sleeve and the short shaft; the handle is arranged on the connecting sleeve.
Further, the safety interlocking mechanism of the mining safety type frequency converter, wherein: the handle is hinged with the connecting sleeve, so that the handle can swing up and down, and the handle can be placed vertically.
Further, the safety interlocking mechanism of the mining safety type frequency converter, wherein: four planes which are uniformly arranged around the short shafts and can be used for the tool to pull the short shafts to rotate are cut on the two short shafts respectively.
Further, the safety interlocking mechanism of the mining safety type frequency converter, wherein: the first lock teeth and the second lock teeth are respectively provided with a plurality of lock teeth, and the first lock teeth and the second lock teeth are respectively in one-to-one correspondence with each other.
Further, the safety interlocking mechanism of the mining safety type frequency converter, wherein: the positioning groove is an arc-shaped groove, and the positioning block is a circular block.
Further, the safety interlocking mechanism of the mining safety type frequency converter, wherein: the two sliding sleeves are respectively provided with an oil filling hole capable of filling lubricating oil into the sliding sleeve at the through groove, and the two oil filling holes are respectively connected with a plug in a threaded manner.
The invention has the advantages that: the safety interlocking mechanism of the mining safety type frequency converter can enable opening and closing of the cabinet door and on-off electricity in the cabinet body to be interlocked, so that the cabinet door cannot be unlocked and opened under the condition that the cabinet body is not powered off, the cabinet door can be unlocked and opened only after the cabinet body is powered off, when the cabinet door is opened, the cabinet body cannot be electrified due to the fact that the positioning block is clamped into the positioning groove and the interlocking rod prevents the operation shaft from rotating, after the cabinet door is closed and locked, the interlocking rod is manually stirred to a position capable of blocking the cabinet door to reversely move and unlock, and after the button is pressed, the operation shaft can be rotated to an electrified position, so that the cabinet body is electrified.
Drawings
FIG. 1 is a schematic perspective view of a safety interlock mechanism of a mining safety type frequency converter according to the present invention when a cabinet door is closed and locked.
FIG. 2 is a schematic perspective view of a safety interlocking mechanism of a mining safety type frequency converter according to the present invention when a cabinet door is unlocked.
FIG. 3 is a schematic perspective view of the safety interlock mechanism of the mining safety type frequency converter according to the present invention when the cabinet door is opened.
FIG. 4 is a schematic diagram of the assembly structure of the small column and the through slot in the safety interlocking mechanism of the mining safety type frequency converter.
FIG. 5 is a schematic diagram of the structure of the positioning block and the positioning groove of the safety interlocking mechanism of the mining safety type frequency converter, which are observed from the inside of the cabinet body, when the operation shaft is positioned at the power-on position.
Detailed Description
The invention is described in further detail below with reference to specific embodiments and the accompanying drawings.
As shown in fig. 1, 2, 3, 4 and 5, the safety interlocking mechanism of the mining safety type frequency converter comprises: the cabinet body 1 and the cabinet door 2, the cabinet door 2 is vertically arranged at one side of the cabinet body 1 for closing an opening of the cabinet body 1, two support arms 3 which are vertically arranged at intervals are arranged on the cabinet body 1 at one side of the cabinet door 2, the two support arms 3 are respectively hinged with the cabinet body 1, so that the two support arms 3 can swing left and right, a support shaft 31 which is horizontally arranged is respectively arranged on the two support arms 3, a sliding sleeve 4 is respectively sleeved on the two support shafts 31, one end of the two sliding sleeves 4 is respectively fixed with the cabinet door 2, the two support arms 3 can support the cabinet door 2 through the two support shafts 31 and the two sliding sleeves 4, the cabinet door 2 can be rotated and opened, a through groove 32 vertically penetrating through the supporting shaft 31 is respectively arranged on the two supporting shafts 31, the two through grooves 32 are vertically aligned, a vertical shaft 5 is arranged between the two sliding sleeves 4, a handle 51 for driving the vertical shaft 5 to rotate is arranged in the middle of the vertical shaft 5, small posts 52 eccentric to the vertical shaft 5 are respectively arranged on two end faces of the vertical shaft 5, the two small posts 52 are vertically aligned, two ends of the vertical shaft 5 respectively penetrate through side walls of one side of the two sliding sleeves 4, the two small posts 52 on the vertical shaft 5 are respectively inserted into the two through grooves 32, after the vertical shaft 5 is driven to rotate by the handle 51, the two small posts 52 can swing to lean against the side wall of the through groove 32, then the two small posts 52 can reversely drive the vertical shaft 5, the two sliding sleeves 4 and the cabinet door 2 to horizontally slide on the two supporting shafts 31 by pushing the side wall of the through groove 32, the left side and the right side of the cabinet door 2 are respectively provided with a clamping edge 21 which is vertically arranged, the cabinet body 1 on the left side and the right side of the cabinet door 2 is respectively provided with a clamping groove 11 which is vertically arranged and can be clamped by the clamping edge 21 on the same side, the inner side of the cabinet door 2 is provided with a first locking tooth 22, the opening edge of the cabinet body 1 is provided with a second locking tooth 12, when the cabinet door 2 is closed, the first locking tooth 22 can swing inwards to the inner side of the second locking tooth 12, then the handle 51 drives the cabinet door 2 to translate to the position aligned with the inside and outside of the second lock teeth 12, and the two clamping edges 21 are respectively clamped into the two clamping grooves 11, so that the cabinet door 2 can block the first lock teeth 22 through the second lock teeth 12 and limit the clamping edges 21 by the clamping grooves 11 to be locked on the cabinet body 1, when the cabinet door 2 needs to be unlocked and opened, the handle 51 drives the cabinet door 2 to translate reversely, so that the two clamping edges 21 are respectively separated from the two clamping grooves 11, and the first lock teeth 22 and the second lock teeth 12 are staggered, so that the clamping grooves 11 do not limit the clamping edges 21 and the first lock teeth 22 are not blocked by the second lock teeth 12, the cabinet door 2 can be unlocked, the cabinet door 2 can be opened in a rotating way, the cabinet body 1 is also provided with a mounting seat 6 and an operating shaft 7 with a handle 71, the electric elements in the cabinet body 1 can be powered on and off after the operating shaft 7 is rotated by the handle 71, the operating shaft 7 is provided with a lock disc 8 with a avoidance notch 81, the mounting seat 6 is penetrated with a horizontally arranged interlocking rod 61, a first reset spring 62 sleeved on the interlocking rod 61 and used for resetting the interlocking rod 61 is arranged between the interlocking rod 61 and the mounting seat 6, two ends of the first reset spring 62 respectively lean against bosses on the mounting seat 6 and the interlocking rod 61, when the operation shaft 7 rotates to an energizing position for energizing the inside of the cabinet body 1, the edge of the lock disc 8 can press the interlocking rod 61, so that the interlocking rod 61 can compress the first return spring 62 to extend, the end part of the interlocking rod 61 can block the cabinet door 2 after extending, the cabinet door 2 cannot be driven to translate reversely, so that the cabinet door 2 cannot be unlocked, the cabinet door 2 is prevented from being opened when the inside of the cabinet body 1 is energized, when the operation shaft 7 rotates to a power-off position for deenergizing the inside of the cabinet body 1, the avoidance notch 81 on the lock disc 8 can rotate to be opposite to the interlocking rod 61, so that the lock disc 8 can avoid the interlocking rod 61 through the avoidance notch 81, and thus the interlocking rod 61 cannot be pressed, so that the interlocking rod 61 can reset under the action of the first reset spring 62 and does not block the cabinet door 2, the cabinet door 2 can be driven to reversely translate and unlock, the interlocking rod 61 can stop the rotation of the operation shaft 7 after being abutted against the avoidance notch 81, the cabinet body 1 can not be electrified, the operation shaft 7 is also provided with a positioning disc 9 positioned in the cabinet body 1, the edge of the positioning disc 9 is provided with two positioning grooves 91 which are arranged at intervals, the cabinet body 1 is also penetrated with a connecting rod, the outer end of the connecting rod is provided with a button 92, the inner end of the connecting rod is provided with a positioning block 93, the connecting rod between the button 92 and the cabinet body 1 is sleeved with a second reset spring 94, the two ends of the second reset spring 94 are respectively abutted against the button 92 and the cabinet body 1, under the action of the second reset spring 94, the button 92 can spring outwards until the positioning block 93 abuts against the inner wall of the cabinet body 1, when the operation shaft 7 is positioned at the power-on position, the positioning block 93 can be clamped into one positioning groove 91 to lock the operation shaft 7, so that the operation shaft 7 cannot be rotationally switched to the power-off position, only when the button 92 is pressed down, the positioning block 93 moves inwards to be separated from the positioning groove 91, the operation shaft 7 can be driven to rotate to the power-off position, when the operation shaft 7 is positioned at the power-off position, the positioning block 93 can be clamped into the other positioning groove 91 to lock the operation shaft 7, the operation shaft 7 cannot be rotated and switched to the power-on position, and the operation shaft 7 can be driven to rotate to the power-on position only by manually pulling the interlocking lever 61 to a position capable of blocking the cabinet door 2 from moving reversely to unlock the cabinet door, so that the interlocking lever 61 does not prevent the operation shaft 7 from rotating, and the button 92 is pressed down.
In actual production, in order to facilitate the power-on in a single operation cabinet body of a worker, the size of the positioning block 93 is usually smaller or the size of the positioning groove 91 is usually larger, so that a gap exists between the positioning block 93 and the positioning groove 91 after the positioning block 93 is clamped into the positioning groove 91, and the operation shaft 7 cannot be completely locked and can rotate in a small range, but cannot be switched on or off, after the cabinet door is closed and locked, the worker firstly needs to manually toggle the interlocking rod 61 to a position capable of blocking the cabinet door 2 to reversely move and unlock, then manually drive the operation shaft 7 to rotate in a small range, so that the edge of the locking disc 8 on the operation shaft 7 can press the interlocking rod 61, the interlocking rod 61 cannot retract and reset, then the worker can press the button 92 by one hand, so that the operation shaft 7 cannot be locked, and at the moment, the worker can drive the operation shaft 7 to rotate to the power-on position, so that the power-on in the cabinet body 1.
In the present embodiment, the structure of the vertical shaft 5 includes: the two short shafts 53 and one connecting sleeve 54 are arranged in an up-down alignment, the connecting sleeve 54 is positioned between the two short shafts 53, the inner ends of the two short shafts 53 are respectively inserted into the two ends of the connecting sleeve 54, and each short shaft 53 is fixed with the connecting sleeve 54 by screwing a screw and a nut penetrating through the connecting sleeve 54 and the short shaft 53; the handle 51 is mounted on the connection sleeve 54. The vertical shaft 5 is provided in two stages for easy installation.
The handle 51 is hinged with the connection sleeve 54 so that the handle 51 can swing up and down, thereby enabling the handle 51 to be placed vertically. This is provided so that the handle 51 can be vertically accommodated.
Four planes 55 which are uniformly arranged around the short shaft 53 and can be rotated by a tool pulling the short shaft 53 are cut on the two short shafts 53, respectively. This is provided so that when the vertical shaft 5 is engaged with the handle 51 which cannot be rotated by a short moment, the vertical shaft 5 is rotated by pulling the tool which has a long moment.
The first and second lock teeth 22, 12 are each provided in plural numbers and are respectively in one-to-one correspondence with each other. After the cabinet door is arranged in this way, the cabinet door can be more flameproof.
The positioning groove 91 is an arc-shaped groove, and the positioning block 93 is a circular block. This arrangement allows the positioning block 93 to be more easily snapped into the positioning groove 91.
The two sliding sleeves 4 are respectively provided with an oil filling hole which can fill the sliding sleeve 4 with lubricating oil at the through groove 32, and the two oil filling holes are connected with a plug 41 in a threaded manner.
Claims (7)
1. A safety interlock mechanism for a mining safety type frequency converter, comprising: the cabinet body and cabinet door, the vertical opening that is used for sealing the cabinet body that installs in one side of the cabinet body of cabinet door, its characterized in that: two support arms which are vertically arranged at intervals are arranged on the cabinet body at one side of the cabinet door, the two support arms are respectively hinged with the cabinet body, so that the two support arms can swing left and right, a support shaft which is horizontally arranged is respectively arranged on the two support arms, a sliding sleeve is respectively sleeved on the two support shafts, one ends of the two sliding sleeves are respectively fixed with the cabinet door, the two support arms can support the cabinet door through the two support shafts and the two sliding sleeves, and the cabinet door can be rotated and opened, the two supporting shafts are respectively provided with a through groove vertically penetrating the supporting shafts, the two through grooves are vertically aligned, a vertical shaft is arranged between the two sliding sleeves, a handle for driving the vertical shaft to rotate is arranged in the middle of the vertical shaft, two end faces of the vertical shaft are respectively provided with a small column eccentric to the vertical shaft, the two small columns are vertically aligned, two ends of the vertical shaft respectively penetrate through one side wall of the two sliding sleeves, the two small columns on the vertical shaft are respectively inserted into the two through grooves, after the vertical shaft is driven to rotate by the handle, the two small columns can swing to abut against the side wall of the through grooves, and then the two small columns can reversely drive the vertical shaft through pushing the side wall of the through grooves, The two sliding sleeves and the cabinet door slide horizontally on the two supporting shafts, the left side and the right side of the cabinet door are respectively provided with a clamping edge which is vertically arranged, the cabinet body at the left side and the right side of the cabinet door is respectively provided with a clamping groove which is vertically arranged and can be used for clamping the clamping edge at the same side, the inner side of the cabinet door is provided with a first locking tooth, the opening edge of the cabinet body is provided with a second locking tooth, when the cabinet door is closed, the first locking tooth can swing inwards to the inner side of the second locking tooth, then the cabinet door is driven to translate to the position aligned with the inner side and the outer side of the second locking tooth through a handle, the two clamping edges are respectively clamped into the two clamping grooves, so that the cabinet door can block the first locking tooth through the second locking tooth and limit the clamping edge through the clamping groove to be locked on the cabinet body, when the cabinet door needs to be unlocked and opened, the cabinet door is driven by the handle to reversely translate, so that two clamping edges are respectively separated from two clamping grooves, and meanwhile, the first locking teeth and the second locking teeth are staggered, so that the clamping edges are not limited by the clamping grooves and the first locking teeth are not blocked by the second locking teeth, the cabinet door can be unlocked in such a way, the cabinet door can be opened in a rotating way, an installation seat and an operation shaft with a handle are further arranged on the cabinet body, after the operation shaft is rotated by the handle, electric elements in the cabinet body can be powered on and off, a locking disc with an avoidance notch is arranged on the operation shaft, a horizontally arranged interlocking rod is arranged on the installation seat in a penetrating way, a first reset spring sleeved on the interlocking rod and used for resetting the interlocking rod is arranged between the interlocking rod and the installation seat, when the operation shaft rotates to an energizing position for energizing the cabinet body, the lock disc edge can press the interlocking rod, so that the interlocking rod can compress the first reset spring to extend, the end part of the interlocking rod can block the cabinet door after extending, the cabinet door cannot be driven to reversely translate, the cabinet door cannot be unlocked so as to prevent the cabinet door from being opened when the cabinet body is energized, when the operation shaft rotates to a power-off position for energizing the cabinet body, the avoidance notch on the lock disc can rotate to be opposite to the interlocking rod, the lock disc can avoid the interlocking rod through the avoidance notch, so that the interlocking rod is not pressed, the interlocking rod can reset under the action of the first reset spring and does not block the cabinet door, the cabinet door can be driven to reversely translate to unlock, the interlocking rod can stop the operation shaft from rotating after abutting against the avoidance notch, so that the cabinet body cannot be electrified, the operation shaft is also provided with a positioning disc positioned in the cabinet body, the edge of the positioning disc is provided with two positioning grooves which are arranged at intervals, the cabinet body is also penetrated with a connecting rod, the outer end of the connecting rod is provided with a button, the inner end of the connecting rod is provided with a positioning block, the connecting rod between the button and the cabinet body is sheathed with a second reset spring, the button can outwards spring under the action of the second reset spring until the positioning block abuts against the inner wall of the cabinet body, when the operation shaft is positioned at an electrified position, the locating piece can block into one constant head tank and lock the operating shaft for the operating shaft can't rotate and switch to the outage position, only when the button is pressed, make the locating piece inwards move and break away from the constant head tank after, the operating shaft can only be driven to rotate to the outage position, when the operating shaft is located the outage position, the locating piece can block into another constant head tank and lock the operating shaft, make the operating shaft can't rotate and switch to the circular telegram position, only manually stir the interlock lever and make the interlock lever not prevent the operating shaft rotation, after the button was pressed, the operating shaft can only be driven to rotate to the circular telegram position.
2. The safety interlock mechanism for a mining safety type frequency converter according to claim 1, wherein: the structure of the vertical shaft comprises: the two short shafts and the connecting sleeve are arranged in an up-down alignment way, the connecting sleeve is positioned between the two short shafts, the inner ends of the two short shafts are respectively inserted into the two ends of the connecting sleeve, and each short shaft is fixed with the connecting sleeve by screwing a screw and a nut which penetrate through the connecting sleeve and the short shaft; the handle is arranged on the connecting sleeve.
3. The safety interlock mechanism for a mining safety type frequency converter according to claim 2, wherein: the handle is hinged with the connecting sleeve, so that the handle can swing up and down, and the handle can be placed vertically.
4. The safety interlock mechanism for a mining safety type frequency converter according to claim 2, wherein: four planes which are uniformly arranged around the short shafts and can be used for the tool to pull the short shafts to rotate are cut on the two short shafts respectively.
5. A safety interlock mechanism for a mining safety frequency converter according to claim 1 or 2 or 3 or 4, wherein: the first lock teeth and the second lock teeth are respectively provided with a plurality of lock teeth, and the first lock teeth and the second lock teeth are respectively in one-to-one correspondence with each other.
6. A safety interlock mechanism for a mining safety frequency converter according to claim 1 or 2 or 3 or 4, wherein: the positioning groove is an arc-shaped groove, and the positioning block is a circular block.
7. A safety interlock mechanism for a mining safety frequency converter according to claim 1 or 2 or 3 or 4, wherein: the two sliding sleeves are respectively provided with an oil filling hole capable of filling lubricating oil into the sliding sleeve at the through groove, and the two oil filling holes are respectively connected with a plug in a threaded manner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011058543.0A CN112259392B (en) | 2020-09-30 | 2020-09-30 | Safety interlocking mechanism of mining safety type frequency converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011058543.0A CN112259392B (en) | 2020-09-30 | 2020-09-30 | Safety interlocking mechanism of mining safety type frequency converter |
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| Publication Number | Publication Date |
|---|---|
| CN112259392A CN112259392A (en) | 2021-01-22 |
| CN112259392B true CN112259392B (en) | 2024-06-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011058543.0A Active CN112259392B (en) | 2020-09-30 | 2020-09-30 | Safety interlocking mechanism of mining safety type frequency converter |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113012959B (en) * | 2021-02-23 | 2022-07-29 | 上海柘中电气有限公司 | Visual intelligent cabinet |
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| CN213124202U (en) * | 2020-09-30 | 2021-05-04 | 张家港市升恒机械设备制造有限公司 | Safety interlocking mechanism of mining safety type frequency converter |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3120430B1 (en) * | 2014-03-21 | 2018-04-11 | ABB Schweiz AG | Locking device for a switchgear cabinet |
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- 2020-09-30 CN CN202011058543.0A patent/CN112259392B/en active Active
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|---|---|---|---|---|
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