CN114141557A - Aerify cabinet cable chamber door and prevent mistake interlocking device - Google Patents
Aerify cabinet cable chamber door and prevent mistake interlocking device Download PDFInfo
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- CN114141557A CN114141557A CN202111208672.8A CN202111208672A CN114141557A CN 114141557 A CN114141557 A CN 114141557A CN 202111208672 A CN202111208672 A CN 202111208672A CN 114141557 A CN114141557 A CN 114141557A
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- 230000007246 mechanism Effects 0.000 claims description 44
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- 238000002955 isolation Methods 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 7
- 230000008569 process Effects 0.000 claims description 6
- 230000002265 prevention Effects 0.000 claims description 4
- 230000000694 effects Effects 0.000 description 6
- 238000005452 bending Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000008878 coupling Effects 0.000 description 1
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- 238000005859 coupling reaction Methods 0.000 description 1
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- 208000017740 grade III prostatic intraepithelial neoplasia Diseases 0.000 description 1
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/20—Interlocking, locking, or latching mechanisms
- H01H9/22—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
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/26—Casings; Parts thereof or accessories therefor
- H02B1/30—Cabinet-type casings; Parts thereof or accessories therefor
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Abstract
The invention relates to an anti-misoperation interlocking device for a cable chamber door of an inflatable cabinet, which is designed for solving the technical problem that the cable chamber door of the inflatable cabinet switch has no reliable mechanical interlocking due to the imperfect structural design of the existing like products. The device is characterized in that a support extending out is arranged on a circuit breaker frame below a three-station indicating disc of the device, a half-and-half notch is formed in the middle of a locking half shaft in the support, a mounting plate is arranged on one side of the back face of the three-station indicating disc of the support, a pressure spring of the mounting plate is connected with a spring pressing plate, the spring pressing plate is arranged above the half-and-half notch of a linkage half shaft and is aligned with an ejector rod of the three-station indicating disc, and a boss round pin is arranged on the spring pressing plate; the other end of ejector pin is connected, sticks up the pole connecting lever, the one end of even axle is connected, another sticks up the pole connecting lever, adjusting link rod, pressure spring and slip even board through the one end of interlock board one, interlock board two, and slip even board is equipped with bearing and pin four, cable chamber door interlock board one side open-ended fore shaft, and cable chamber door interlock board is fixed to be set up in one side of cable chamber door.
Description
Technical Field
The invention relates to a cable chamber door of an inflatable cabinet, in particular to an anti-misoperation interlocking device for the cable chamber door of the inflatable cabinet.
Background
At present, cable chamber doors for lower outgoing lines in existing inflatable cabinet switches generally have no mechanical interlocking function, and personal safety accidents caused by misoperation occur in the operation and maintenance process. Some of the conventional anti-misoperation mechanisms of high-voltage switches are as follows, such as application number 201320168577.4 published in chinese patent literature, publication number 2013.09.11, and utility model named as "anti-misoperation type propulsion mechanism"; the mechanism comprises a mechanism body, wherein the mechanism body is provided with a driving shaft, the tail end of the driving shaft penetrates through the mechanism body and is fixedly connected with a linkage sleeve in the circumferential direction, and a limiting plate is arranged in the circumferential direction of the linkage sleeve to form a sliding pair; the mechanism body is also provided with a locking device, and the locking device is provided with a lock tongue and a slot matched with an external driving component; the locking device has a locking state in which the latch bolt extends to block the movement of the stopper plate when the driving member is not inserted into the slot, and an unlocking state in which the latch bolt is retracted when the driving member is inserted into the slot. Like ZL patent number 01278129.0 published in Chinese patent literature, the publication date 2002 is 9.11.2002, and the utility model is named as a mechanical interlocking device for preventing misoperation of the inflatable cabinet; the device changes the original flat shaft function from two interlocking plates which are in the shape of a circular plate or a regular polygon plate and are linked with the shaft and provided with a right-angle notch into an interlocking block with a square top. However, the above products and the like are difficult to be used in the switch of the gas-filled cabinet, and the interlocking and linkage structure, safety and stability of the switch are required to be further improved and perfected.
Disclosure of Invention
In order to overcome the defects, the invention aims to provide the mistaken-interlocking prevention device for the cable chamber door of the inflatable cabinet, so that the technical problems that the cable chamber door of the switch of the inflatable cabinet has no reliable mechanical interlocking and the overall safety and stability are poor due to the incomplete structural design of the existing like products are solved. The purpose is realized by the following technical scheme.
A cable chamber door anti-misoperation interlocking device of an inflatable cabinet comprises a three-station mechanism, a breaker mechanism and a cable chamber, wherein an ejector rod of the device is fixedly arranged on one side of the back surface of a three-station indicating disc, and in the process of rotating the three stations, the three-station indicating disc is aligned to a display position to prompt isolation and grounding closing and separating positions; the circuit breaker is structurally characterized in that a support extending out is arranged on a circuit breaker frame below a three-station indicating disc, an interlocking half shaft is arranged in the support, a half-and-half notch is arranged in the middle of the interlocking half shaft, the outer diameter of the half-and-half notch of the interlocking half shaft is abutted to one end of an ejector rod extending out of the support below the interlocking half shaft in an initial state, a mounting plate is arranged on one side of the back face of the three-station indicating disc of the support, a pressure spring of the mounting plate is connected with a spring pressing plate, the spring pressing plate is arranged above the half-and-half notch of the interlocking half shaft and aligned with the ejector rod of the three-station indicating disc, and a boss round pin is arranged on the spring pressing plate; the other end of the ejector rod is connected with one end of the first interlocking plate, the other end of the first interlocking plate is connected with one end of the second interlocking plate, the other end of the second interlocking plate is connected with one end of the rocker crank arm, and the first interlocking plate and the second interlocking plate are attached to the outer side of a circuit breaker mechanism side plate below a circuit breaker frame; the other end of the warping rod connecting lever is connected with one end of the connecting shaft, the other end of the connecting shaft is connected with one end of the other warping rod connecting lever, the other end of the other warping rod connecting lever is connected with one end of the adjusting connecting rod, the other end of the adjusting connecting rod is connected with one end of the pressure spring, the other end of the pressure spring is connected with one end of the sliding connecting plate, and the other end of the sliding connecting plate is provided with a bearing and a pin IV; bearing and pin four are buckled and are fixed in cable chamber door interlocking board one side open-ended fore shaft, and cable chamber door interlocking board is fixed to be set up in one side of cable chamber door, and one side of cable chamber support is equipped with the cable chamber door, and the opposite side of cable chamber door is articulated to be fixed in the cable chamber support, and interlocking plate one sets up the spring hanging pin of circuit breaker frame through the extension spring. Thereby the device only under the complete ground connection state of whole gas insulated switchgear, when breaker closing state, three-station ground connection closed position promptly, just can open or close the cable chamber door, can open the chain that the cable chamber door overhauld, when arbitrary position such as breaker separating brake state, three-station isolation closed position or three-station bipartition promptly, can't open or close the cable chamber door.
The other end of the second interlocking plate is provided with a transverse plate extending out of the protrusion, the transverse plate of the second interlocking plate is abutted to a interlocking rod extending out of the circuit breaker frame, the interlocking rod is connected with a mechanism switching-on/off shaft in a side plate of the circuit breaker mechanism through an interlocking connecting lever, and a manual switching-off button is arranged between the side plates of the circuit breaker mechanism. Therefore, the second interlocking plate is unlocked and unlocked through a mechanism switching-on/off shaft of the circuit breaker mechanism.
The interlocking rod is arranged in a fixing sleeve and a locking nut of the breaker frame, the outer diameter of the interlocking rod extending out of the fixing sleeve and the locking nut is provided with a pressure spring, the fixing sleeve is installed on the breaker frame, the outer side of the fixing sleeve is fastened by the locking nut, and the interlocking rod penetrates through the pressure spring from the inner side of the fixing sleeve and is fastened and limited by a self-locking nut. The specific structure embodiment of the unlocking and unlocking position of the circuit breaker mechanism is that the interlocking rod is installed through the fixing sleeve and the locking nut, and the interlocking rod is driven to reset through the pressure spring.
The two ends of the first interlocking plate are respectively provided with a waist-shaped hole, the waist-shaped holes at the two ends of the first interlocking plate are fixed on one side of the side plate of the circuit breaker mechanism through the first pin and the second pin, the waist-shaped holes in the middle of the second interlocking plate are fixed on one side of the first interlocking plate of the side plate of the circuit breaker mechanism through the third pin, the second interlocking plate stretches out of the circuit breaker frame and is connected with the rocker connecting lever through the first pin, the connecting shaft is arranged on the cable chamber support below the circuit breaker frame through the support, and the other rocker connecting lever is connected with the adjusting connecting lever through the second pin. The above description is the embodiment of the fixing and connecting structure between the first interlocking plate and the second interlocking plate, and the embodiment of the fixing and connecting structure of the coupling shaft.
Waist-shaped holes symmetrically formed in two ends of the sliding connecting plate are fixed to the cable chamber support through supporting screws, and bearings are arranged on the supporting screws in the waist-shaped holes respectively. The stability that the sliding connecting plate moves up and down through the waist-shaped hole is further improved.
The mounting panel is the T font, and the one end of mounting panel removes the hole of stretching out that inserts support one side circuit breaker frame to with support fixed connection, the other end of mounting panel passes through the pressure spring to be connected with spring plate, the protruding laminating in circuit breaker frame's the hole top of stretching out between the mounting panel both ends. The structure is the structural embodiment of the mounting plate, so that the support, the spring pressing plate, the interlocking half shaft and the ejector rod are arranged and mounted on the breaker frame conveniently.
The cable chamber support sets up in the below of circuit breaker frame, and three station indicating dial are located cable chamber door interlocking board one side of circuit breaker frame top, are equipped with the circuit breaker mechanism curb plate that the symmetry set up in the cable chamber door one side opening of circuit breaker frame. The above is a specific structural embodiment, and the same type of three-position mechanism, breaker mechanism and cable chamber can also be adopted.
Cable chamber door interlocking board installs in cable chamber door, and cable chamber door is fixed in the cable chamber support, and cable chamber door can wave, and the fore shaft of cable chamber door interlocking board is 45 degrees waist type breachs to one side. Thereby plane plays unblock circuit breaker mechanism and cable chamber door interlocking effect under the fore shaft of waist type breach in above-mentioned cable chamber door interlocking board, and plane plays the unable limiting displacement of opening of cable chamber door on the fore shaft of waist type breach.
The invention has reasonable structural design, safe and reliable structure, good stability and safety, simple operation and long service life; it is fit for preventing mistake interlock device use as gas insulated cabinet cable chamber door to and the institutional advancement of like product.
Drawings
FIG. 1 is a front view of the present invention, wherein part A is framed and the other framed part is drawn out for enlarged cross-section.
Fig. 2 is a schematic left-side perspective view of fig. 1.
Fig. 3 is a schematic view of the right side perspective of fig. 1, with two portions of the interlock plate shown enlarged.
Fig. 4 is a schematic view of the open state of the cable chamber door of the invention, in which the B part is framed and the other framed part is drawn out for enlarged section.
Fig. 5 is a schematic left-side perspective view of fig. 4.
Fig. 6 is a schematic diagram of the right side perspective structure of fig. 4.
Fig. 7 is a schematic enlarged view of a portion a of fig. 1.
Fig. 8 is a schematic diagram of the left side view structure of fig. 7.
Fig. 9 is a schematic enlarged view of a portion B of fig. 4.
Fig. 10 is a schematic diagram of the left side view structure of fig. 9.
The names of the sequence numbers in the figure are: 1. three-station indicating dial, 2, spring pressure plate, 3, interlocking half shaft, 4, bracket, 5, mounting plate, 6, ejector rod, 7, hanging spring pin, 8, tension spring, 9, pin I, 10, interlocking plate I, 11, circuit breaker mechanism side plate, 12, compression spring, 13, pin II, 14, manual opening button, 15, interlocking plate II, 1501, transverse plate, 16, mechanism opening and closing shaft, 17, pin III, 18, interlocking crank arm, 19, the device comprises a linkage rod, 20, a pressure spring, 21, a fixing sleeve, 22, a locking nut, 23, a first pin shaft, 24, a warped rod crank arm, 25, a linkage shaft, 26, a support, 27, a second pin shaft, 28, an adjusting connecting rod, 29, a breaker frame, 30, a pressure spring, 31, a sliding connecting plate, 32, a supporting screw, 33, a cable chamber door linkage plate, 34, a bearing, 35, a cable chamber support, 36, a fourth pin, 37, a cable chamber door, 38 and an ejector rod.
Detailed Description
The invention will now be further described with reference to the accompanying drawings. As shown in fig. 1-10, the top rod 38 of the device is fixedly arranged on one side of the back surface of the three-station indicating disc 1, and in the process of rotating the three stations, the three-station indicating disc is aligned with the display position to prompt the isolation and grounding closing and opening positions. A half-and-half notch is formed in the middle of an interlocking half shaft 3 below the three-station indicator panel 1, a spring pressing plate 2 is installed on the interlocking half shaft 3, and the interlocking half shaft 3 is installed in a symmetrical hole of a support 4 and rotates; the spring pressing plate 2 is provided with a boss round pin, a pressure spring 12 penetrates through the boss round pin to be assembled on the mounting plate 5, then the spring pressing plate is mounted on a breaker frame 29, and the interlocking half shaft 3 automatically resets under the action of the pressure spring 12. The first pin 9 and the second pin 13 are respectively arranged on a circuit breaker mechanism side plate 11, and the circuit breaker mechanism side plate 11 is arranged on a circuit breaker frame 29; one end of the ejector rod 6 is arranged in a kidney-shaped hole of the interlocking plate I10, and the other cylindrical end of the ejector rod 6 penetrates through a circular hole of the support 4 and is propped against the notch of the interlocking half shaft 3; the first interlocking plate 10 is provided with two waist-shaped sliding grooves, and a waist-shaped hole of the first interlocking plate is aligned to the two pins to be installed, so that the first interlocking plate can slide up and down; one end of the tension spring 8 is hung in the small hole of the first interlocking plate 10, the other end of the tension spring is hung in the small hole of the hanging spring pin 7, then the hanging spring pin 7 is fixed on the breaker frame 29, and at the moment, the interlocking plate is reset freely under the action of the tension spring. The second interlocking plate 15 penetrates through a lower end hole of the frame 29 and is mounted on the first interlocking plate 10 along the side plate 11 of the circuit breaker mechanism, three bending points are arranged on the second interlocking plate 15, the upper bending position of the second interlocking plate is abutted against the manual opening button 14, a first pin shaft 23 is welded at the lower short bending position, and the lower long bending position of the second interlocking plate and the circuit breaker are combined and separated to play a interlocking role. The mechanism opening and closing rotating shaft 16 is arranged between the circuit breaker mechanism side plates 11, and the interlocking connecting lever 18 is arranged on the mechanism opening and closing rotating shaft 16. The fixed sleeve 21 is arranged on a breaker frame 29, the outer side of the fixed sleeve is fastened by a locking nut 22, and the interlocking rod 19 penetrates through the compression spring 20 and is fastened and limited by a self-locking nut from the inner side of the fixed sleeve 21. The warped rod crank arms 24 are fixedly arranged on two sides of the connecting shaft 25 and then are arranged on the cable chamber bracket 35 through the support 26. The two bearings 34 are fixed to the cable chamber bracket 35 through the support screws 32. The lower end of the adjusting connecting rod 28 penetrates through the pressure spring 30 to be connected with the sliding connecting plate 31, and the pin four 36 penetrates through the bearing 34 to be installed on the sliding connecting plate 31. Cable chamber door interlock board 33 installs in cable chamber door 37, and cable chamber door 37 is fixed in cable chamber support 35, and cable chamber door 37 can wave, and cable chamber door interlock board 33 is equipped with 45 degrees waist type breachs to one side.
The action principle of the device is as follows: when the three stations of the device are swung to a grounding closing position, the three-station indicating disc 1 displays grounding closing and isolation, at the moment, the ejector rod 38 of the three-station indicating disc 1 rotates to the interlocking half shaft 3 assembly to open the spring pressing plate 2 and the interlocking half shaft 3 simultaneously, the ejector rod 6 is not limited, and at the moment, the circuit breaker is in a switching-off state and cannot open the cable chamber door 37; the circuit breaker is switched on, the mechanism switching-on and switching-off rotating shaft 16 acts to drive the interlocking connecting lever 18 to rotate, the interlocking lever 19 does not bear pressure at the moment, moves upwards under the action of the pressure spring 20, meanwhile, the first interlocking plate 10 and the second interlocking plate 15 move upwards along the first pin 9 and the second pin 13 under the action of the tension spring 8 to drive the seesaw lever connecting lever 24 to tilt up and down, the connecting rod 28 and the sliding connecting plate 31 are adjusted under the action of the second pin 27 and the pressure spring 30 to act downwards along the supporting screw 32, and the bearing 34 acts on the lower end of a locking opening of a notch of the interlocking plate 33 of the cable chamber door, so that the cable chamber door 37 can be normally opened at the moment, and the normal opening or closing function of the cable chamber door is achieved; at the moment, the circuit breaker is in a closing state, the three stations cannot be operated, the second linkage plate 15 abuts against the manual brake-separating button 14 in the upward moving process, and the circuit breaker cannot be separated, so that the whole inflatable cabinet is in a complete grounding state under the condition that the cable chamber door 37 is in an opening state.
On the contrary, the cable chamber door is manually closed, the bearing is pushed upwards through the lower waist-shaped hole of the linkage plate of the cable chamber door, the adjusting connecting rod and the sliding linkage plate move upwards, meanwhile, the warped rod crank arm assembly is driven to move up and down, the linkage plate I and the linkage plate II are driven to move downwards along the pin I and the pin II, at the moment, the tension spring is stretched, the transverse plate of the linkage plate II leaves the manual opening button, and the breaker can be opened; the breaker mechanism divides the switching pivot to drive interlocking connecting lever, pushes down the interlocking lever, and the interlocking lever lower extreme withstands with interlocking board two-phase contact, can only open the effect of cable chamber door under the breaker combined floodgate state this moment. The circuit breaker can operate three stations after separating brake, with three stations shake ground connection branch, keep apart the branch state, the ejector pin of indicator panel back leaves the spring pressure plate of chain semi-axis, under the pressure spring effect, chain semi-axis resets, withstands the ejector pin of chain board one, this plays three stations can only open the effect of cable chamber door when ground connection closes the position.
The cable chamber door interlocking plate is provided with a waist-shaped hole notch (locking opening) which is obliquely upward and opened, and the lower plane of the waist-shaped hole notch is used for pulling the interlocking plate I and the interlocking plate II downwards through the tilting rod component when the cable chamber door is closed, and simultaneously the interlocking plate I and the interlocking plate II are interlocked; the upper plane of waist type hole breach plays upper end circuit breaker and three station interlock positions when opening, and cable chamber door is under the effect on interlock board inclined plane, the effect that can't open by force.
The device has the following specific functions: when the inflating cabinet normally operates, the circuit breaker is in a closing state, the three stations are in an isolation closing position, the cable chamber door cannot be opened at the moment, and the three stations cannot be operated at the same time. The circuit breaker can only be opened firstly, then the three stations are firstly shaken to the isolation separating position from the isolation separating position, then the three stations are shaken to the grounding closing position from the grounding separating position, at the moment, the whole gas-filled cabinet is not in the grounding state, or the cable chamber door can not be opened, and at the moment, the circuit breaker is still in the opening state. And then, operating the circuit breaker, after the circuit breaker is switched on, normally opening or closing the cable chamber door in all chain opening states, wherein the circuit breaker cannot be switched off in the opening state of the cable chamber door, three stations cannot be operated in the same way, the circuit breaker can be switched off only after the cable chamber door is closed, and then operating a three-station switch. Through above-mentioned interlocking device, whole aerify the cabinet in the maintenance in-process, because of the cable chamber is indoor is electrified device, if when confirming whole aerify cabinet effective ground connection, open cable chamber door, the accident that the maintainer electrocuted can appear.
The above contents are intended to illustrate the technical means of the present invention, and not to limit the technical scope of the present invention, the device mainly protects the control of the cable chamber door by the interlocking and linkage structure driven by the rotation of the three-position indicating dial and the operation of the mechanism switching on/off brake shaft. The invention is obviously modified or replaced by the technical personnel in the field combining with the prior common knowledge, such as the locking port structure of the interlocking plate, the cable chamber door, the circuit breaker frame, the side plate structure and the position of the circuit breaker mechanism, and the corresponding modification of the specific shape of the three-position indicating disc, namely, the prior similar products and the position arrangement are adopted to replace the technical characteristics, and the protection scope of the invention also falls into the protection scope of the claims.
Claims (9)
1. A cable chamber door anti-misoperation interlocking device of an inflatable cabinet comprises a three-station mechanism, a breaker mechanism and a cable chamber, wherein an ejector rod (38) of the device is fixedly arranged on one side of the back surface of a three-station indicating disc (1), and in the process of rotating the three stations, the three-station indicating disc is aligned with a display position to prompt isolation and grounding closing and separating positions; the circuit breaker is characterized in that a circuit breaker frame (29) below a three-station indicating disc (1) is provided with an extended support (4), a linkage half shaft (3) is arranged in the support (4), a half-half notch is arranged in the middle of the linkage half shaft (3), the outer diameter of the half-half notch of the linkage half shaft (3) is abutted against one end of an ejector rod (6) extending out of the support (4) below the linkage half shaft in an initial state, a mounting plate (5) is arranged on one side of the back face of the three-station indicating disc (1) of the support (4), a pressure spring (12) of the mounting plate (5) is connected with a spring pressure plate (2), the spring pressure plate (2) is arranged above the half-half notch of the linkage half shaft (3), the spring pressure plate (2) is aligned with the ejector rod (38) of the three-station indicating disc (1), and a boss round pin is arranged on the spring pressure plate (2); the other end of the ejector rod (6) is connected with one end of a first interlocking plate (10), the other end of the first interlocking plate (10) is connected with one end of a second interlocking plate (15), the other end of the second interlocking plate (15) is connected with one end of a rocker crank arm (24), and the first interlocking plate (10) and the second interlocking plate (15) are attached to the outer side of a circuit breaker mechanism side plate (11) below a circuit breaker frame (29); the other end of the tilting rod crank arm (24) is connected with one end of a connecting shaft (25), the other end of the connecting shaft (25) is connected with one end of the other tilting rod crank arm (24), the other end of the other tilting rod crank arm (24) is connected with one end of an adjusting connecting rod (28), the other end of the adjusting connecting rod (28) is connected with one end of a pressure spring (30), the other end of the pressure spring (30) is connected with one end of a sliding connecting plate (31), and the other end of the sliding connecting plate (31) is provided with a bearing (34) and a pin four (36); bearing (34) and pin four (36) are buckled into and are fixed in cable chamber door interlocking board (33) one side open-ended fore shaft, and cable chamber door interlocking board (33) are fixed to be set up in one side of cable chamber door (37), and one side of cable chamber support (35) is equipped with cable chamber door (37), and the other side of cable chamber door (37) is articulated to be fixed in cable chamber support (35), and interlocking board one (10) set up hanging spring round pin (7) of circuit breaker frame (29) through extension spring (8).
2. The anti-misoperation interlocking device for the cable chamber door of the gas-filled cabinet according to claim 1 is characterized in that the other end of the second interlocking plate (15) is provided with a transverse plate (1501) extending convexly, the transverse plate (1501) of the second interlocking plate (15) abuts against a interlocking rod (19) extending out of a breaker frame (29), the interlocking rod (19) is connected with a mechanism switching-on/off shaft (16) in a breaker mechanism side plate (11) through an interlocking connecting lever (18), and a manual switching-off button (14) is arranged between the breaker mechanism side plates (11).
3. The device for preventing the misoperation-interlocking of the cable chamber door of the gas-filled cabinet according to claim 2, wherein the interlocking rod (19) is arranged in a fixing sleeve (21) and a locking nut (22) of a breaker frame (29), a pressure spring (20) is arranged on the outer diameter of the interlocking rod (19) extending out of the fixing sleeve (21) and the locking nut (22), namely, the fixing sleeve (21) is arranged on the breaker frame (29), the outer side of the fixing sleeve (21) is fastened by the locking nut (22), and the interlocking rod (19) penetrates through the pressure spring (20) and penetrates from the inner side of the fixing sleeve (21) to be fastened and limited by a self-locking nut.
4. The anti-misoperation interlocking device for the cable chamber door of the inflatable cabinet according to claim 1, wherein waist-shaped holes are respectively formed in two ends of the first interlocking plate (10), the waist-shaped holes in the two ends of the first interlocking plate (10) are fixed to one side of the side plate (11) of the circuit breaker mechanism through the first pin (9) and the second pin (13), the waist-shaped hole in the middle of the second interlocking plate (15) is fixed to one side of the first interlocking plate (10) of the side plate (11) of the circuit breaker mechanism through the third pin (17), the second interlocking plate (15) extends out of the circuit breaker frame (29) and is connected with the rocker arm (24) through the first pin (23), the connecting shaft (25) is arranged on a cable chamber bracket (35) below the circuit breaker frame (29) through a support (26), and the other rocker arm (24) is connected with the adjusting connecting rod (28) through the second pin (27).
5. The mis-interlocking prevention device for the cable chamber door of the inflatable cabinet according to claim 1, wherein waist-shaped holes symmetrically arranged at both ends of the sliding connecting plate (31) are fixed on a cable chamber bracket (35) through supporting screws (32), and the supporting screws (32) in the waist-shaped holes are respectively provided with a bearing (34).
6. The anti-misoperation interlocking device for the cable chamber door of the gas-filled cabinet according to claim 1, wherein the mounting plate (5) is T-shaped, one end of the mounting plate (5) is movably inserted into a protruding hole of the breaker frame (29) on one side of the bracket (4) and is fixedly connected with the bracket (4), the other end of the mounting plate (5) is connected with the spring pressing plate (2) through a pressure spring (12), and a protrusion between two ends of the mounting plate (5) is attached above the protruding hole of the breaker frame (29).
7. The anti-misoperation interlocking device for the cable chamber door of the gas-filled cabinet according to claim 1 is characterized in that the cable chamber bracket (35) is arranged below the breaker frame (29), the three-station indicating disc (1) is positioned on one side of the cable chamber door interlocking plate (33) above the breaker frame (29), and symmetrically arranged breaker mechanism side plates (11) are arranged in an opening on one side of the cable chamber door (37) of the breaker frame (29).
8. The mis-interlocking prevention device for the cable chamber door of the gas-filled cabinet according to claim 1, wherein the interlocking plate (33) of the cable chamber door is installed on the cable chamber door (37), the cable chamber door (37) is fixed on the cable chamber bracket (35), the cable chamber door can be swung, and the locking opening of the interlocking plate (33) of the cable chamber door is a waist-shaped notch with an inclination of 45 degrees.
9. The mis-interlocking prevention device for the cable chamber door of the gas-filled cabinet according to claim 1, characterized in that when three stations of the device are swung to a grounding closing position, the three-station indicating disc (1) displays grounding closing and isolation division, at the moment, a push rod (38) of the three-station indicating disc (1) is rotated to an interlocking half shaft (3) assembly, a spring pressing plate (2) and the interlocking half shaft (3) are opened simultaneously, the push rod (6) is not limited, and at the moment, a breaker is in a switching-off state, the cable chamber door (37) cannot be opened; the circuit breaker is closed, a mechanism closing and opening rotating shaft (16) acts to drive an interlocking connecting lever (18) to rotate, at the moment, a linkage rod (19) does not bear pressure, moves upwards under the action of a pressure spring (20), meanwhile, a linkage plate I (10) and a linkage plate II (15) assembly move upwards along a pin I (9) and a pin II (13) under the action of a tension spring (8) to drive a seesaw rod connecting lever (24) assembly to seesaw up and down, under the action of a pin II (27) and the pressure spring (30), a connecting rod (28) and a sliding linkage plate (31) assembly are adjusted to move downwards along a supporting screw (32), act on the lower end of a lock opening of a waist-shaped notch of a cable chamber door interlocking plate (33) through a bearing (34), and at the moment, a cable chamber door (37) can be normally opened; at the moment, the circuit breaker is in a closing state, the three stations cannot be operated, the second interlocking plate (15) abuts against the manual brake separating button (14) in the upward moving process, and the circuit breaker cannot be separated, so that the circuit breaker is in a complete grounding state under the opening state of a cable chamber door (37).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111208672.8A CN114141557B (en) | 2021-10-18 | 2021-10-18 | Anti-misoperation interlocking device for cable chamber door of inflatable cabinet |
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| CN202111208672.8A CN114141557B (en) | 2021-10-18 | 2021-10-18 | Anti-misoperation interlocking device for cable chamber door of inflatable cabinet |
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| CN114141557B CN114141557B (en) | 2024-04-05 |
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| CN202111208672.8A Active CN114141557B (en) | 2021-10-18 | 2021-10-18 | Anti-misoperation interlocking device for cable chamber door of inflatable cabinet |
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|---|---|
| CN114141557B (en) | 2024-04-05 |
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