CN114141557B - Anti-misoperation interlocking device for cable chamber door of inflatable cabinet - Google Patents
Anti-misoperation interlocking device for cable chamber door of inflatable cabinet Download PDFInfo
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- CN114141557B CN114141557B CN202111208672.8A CN202111208672A CN114141557B CN 114141557 B CN114141557 B CN 114141557B CN 202111208672 A CN202111208672 A CN 202111208672A CN 114141557 B CN114141557 B CN 114141557B
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- interlocking
- cable chamber
- chamber door
- circuit breaker
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- 230000007246 mechanism Effects 0.000 claims description 44
- 230000009471 action Effects 0.000 claims description 12
- 238000002955 isolation Methods 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 7
- 230000008569 process Effects 0.000 claims description 5
- 238000000926 separation method Methods 0.000 claims description 3
- 230000001105 regulatory effect Effects 0.000 claims 1
- 238000005452 bending Methods 0.000 description 4
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
Classifications
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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
Abstract
The utility model 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 a switch of the inflatable cabinet is not reliably and mechanically interlocked due to imperfect structural design of the existing similar products. The circuit breaker is characterized in that a frame of the circuit breaker below a three-station indicating disc of the device is provided with an extending bracket, a half-and-half gap is arranged in the middle of a locking half shaft in the bracket, one side of the back surface of the three-station indicating disc of the bracket is provided with a mounting plate, 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 gap of the interlocking half shaft, the spring pressing plate is aligned with a push 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 a first interlocking plate and one end of a second interlocking plate, one end of a tilted lever crank arm and one end of a connecting shaft are connected, the other tilted lever crank arm, an adjusting connecting rod, a pressure spring and a sliding connecting plate, the sliding connecting plate is provided with a bearing and a pin IV, a locking opening is formed in one side of the interlocking plate of the cable chamber door, and the interlocking plate of the cable chamber door is fixedly arranged on one side of the cable chamber door.
Description
Technical Field
The utility model 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, the lower outlet cable chamber door in some existing gas-filled cabinet switches generally has no mechanical interlocking function, and personal safety accidents caused by misoperation occur in the operation and maintenance process. The prior misoperation preventing mechanisms of the high-voltage switch are as follows, such as application number 201320168577.4 published in Chinese patent literature, grant notice date 2013.09.11 and the name of the misoperation preventing propulsion mechanism; the mechanism comprises a mechanism main body, wherein the mechanism main body is provided with a driving shaft, the tail end of the driving shaft penetrates through the mechanism main body and is fixedly connected with a interlocking sleeve in the circumferential direction, and a limiting plate is arranged in the circumferential direction of the interlocking sleeve to form a moving pair; the mechanism main 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 is provided with a locking state that the lock tongue stretches out to block the movement of the limiting plate when the driving member is not inserted into the slot, and an unlocking state that the lock tongue is retracted when the driving member is inserted into the slot. For example, the patent number 01278129.0 of ZL published in Chinese patent literature, the date of the grant bulletin, 2002, 9 and 11, is named as "mechanical interlocking device for preventing misoperation of the gas-filled cabinet"; the device changes the original flat shaft function into a fork-shaped interlocking block from two interlocking plates which are linked with a shaft and are provided with a right angle notch and are in a circular plate shape or a regular polygonal plate shape. However, the above products and the like are difficult to be used for the switch of the inflatable cabinet, and the interlocking and linkage structures, the safety and the stability of the switch are required to be further improved and perfected.
Disclosure of Invention
In order to overcome the defects, the utility model aims to provide an anti-misoperation interlocking device for a cable chamber door of an inflatable cabinet, so that the technical problems that the cable chamber door of an inflatable cabinet switch is not reliably and mechanically interlocked due to imperfect structural design of the existing like products and the overall safety and stability are poor are solved. The aim is achieved by the following technical scheme.
The utility model provides an anti-misoperation interlocking device of cable chamber door of inflatable cabinet, the device includes three station mechanism, circuit breaker mechanism and cable chamber, and the ejector pin of the device is fixed mounting in three station indicating plate's back one side, rotates the in-process of three station, aligns the display position on the three station indicating plate, suggestion isolation, ground connection and divides the position; the circuit breaker is characterized in that a frame of the circuit breaker below the three-station indicating disc is provided with an extended bracket, a linkage half shaft is arranged in the bracket, a half gap is arranged in the middle of the linkage half shaft, the outer diameter of the half gap of the linkage half shaft in an initial state is propped against one end of a push rod of the lower part extending out of the bracket, one side of the back of the three-station indicating disc of the bracket is provided with a mounting plate, a pressure spring of the mounting plate is connected with a spring pressing plate, the spring pressing plate is arranged above the half gap of the linkage half shaft, the spring pressing plate is aligned with the push 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 a first interlocking plate, the other end of the first interlocking plate is connected with one end of a second interlocking plate, the other end of the second interlocking plate is connected with one end of a tilting lever crank arm, and the first interlocking plate and the second interlocking plate are attached to the outer side of a side plate of the circuit breaker mechanism below the circuit breaker frame; the other end of the warping rod crank arm is connected with one end of a connecting shaft, the other end of the connecting shaft is connected with one end of another warping rod crank arm, the other end of the other warping rod crank arm is connected with one end of an adjusting connecting rod, the other end of the adjusting connecting rod is connected with one end of a pressure spring, the other end of the pressure spring is connected with one end of a sliding connecting plate, and a bearing and a pin IV are arranged at the other end of the sliding connecting plate; the bearing and the pin are fastened into a locking opening fixed on one side of a cable chamber door interlocking plate, the cable chamber door interlocking plate is fixedly arranged on one side of the cable chamber door, the cable chamber door is arranged on one side of a cable chamber support, the other side of the cable chamber door is hinged and fixed on the cable chamber support, and the interlocking plate is provided with a spring hanging pin of a breaker frame through a tension spring. Therefore, the device can only open or close the cable chamber door in the complete grounding state of the whole inflatable cabinet, namely in the closing state of the circuit breaker and in the three-station grounding closing position, can open the cable chamber door to carry out maintenance interlocking, namely in the opening state of the circuit breaker, in the three-station isolating closing position or in any position of the three-station double-station and the like, and can not open or close the cable chamber door.
The other end of the second interlocking plate is provided with an extending protruding transverse plate, the transverse plate of the second interlocking plate is propped against an interlocking rod extending out of the circuit breaker frame, the interlocking rod is connected with a mechanism switching-on and switching-off shaft in a side plate of the circuit breaker mechanism through an interlocking crank arm, and a manual switching-off button is arranged between the side plates of the circuit breaker mechanism. And the second interlocking plate is unlocked and unlocked by the mechanism switching-on and switching-off shaft of the circuit breaker mechanism.
The interlocking rod is arranged in a fixed sleeve and a locking nut of the circuit breaker frame, the outer diameter of the interlocking rod extending out of the fixed sleeve and the locking nut is provided with a pressure spring, namely, the fixed sleeve is arranged on the circuit breaker frame, the outer side of the fixed sleeve is fastened by the locking nut, and the interlocking rod is threaded with the pressure spring to penetrate from the inner side of the fixed sleeve to be fastened and limited by the self-locking nut. The unlocking and unlocking part of the circuit breaker mechanism is specifically structurally implemented by installing the interlocking rod through the fixing sleeve and the locking nut, and driving the interlocking rod 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 a first pin and a 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 a third pin, the second interlocking plate stretches out of the circuit breaker frame and is connected with the tilted lever crank arm through a first pin shaft, the connecting shaft is arranged on a cable chamber support below the circuit breaker frame through a support, and the other tilted lever crank arm is connected with the adjusting connecting rod through a second pin shaft. The above is an embodiment of a fixing and connecting structure between the first interlocking plate and the second interlocking plate, and an embodiment of a fixing and connecting structure of the connecting shaft.
The waist-shaped holes symmetrically arranged at two ends of the sliding connecting plate are fixed on the cable chamber support through supporting screws, and the supporting screws in the waist-shaped holes are respectively provided with a bearing. The stability of the sliding connecting plate moving up and down through the waist-shaped holes is further improved.
The mounting plate is T-shaped, one end of the mounting plate is movably inserted into the extending hole of the circuit breaker frame on one side of the support and fixedly connected with the support, the other end of the mounting plate is connected with the spring pressing plate through the pressure spring, and the protrusions between the two ends of the mounting plate are attached to the upper portion of the extending hole of the circuit breaker frame. The structure is a structural embodiment of the mounting plate, so that the support, the spring pressing plate, the interlocking half shaft and the ejector rod are convenient to set and mount on the breaker frame.
The cable room support sets up in the below of circuit breaker frame, and three station indicating disks are located cable room 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 room door one side opening of circuit breaker frame. The above is a specific structural embodiment, and the structural improvement arrangement of the same type of three-station mechanism, the breaker mechanism and the cable chamber can also be adopted.
The cable chamber door interlocking plate is arranged on the cable chamber door, the cable chamber door is fixed on the cable chamber support, the cable chamber door can shake, and the locking notch of the cable chamber door interlocking plate is an inclined 45-degree waist-shaped notch. Therefore, the lower plane of the locking notch of the waist-shaped notch in the cable chamber door interlocking plate plays a role in interlocking the unlocking circuit breaker mechanism and the cable chamber door, and the upper plane of the locking notch of the waist-shaped notch plays a role in limiting the opening of the cable chamber door.
The utility model has reasonable structural design, safe and reliable structure, good stability and safety, simple operation and long service life; the anti-misoperation interlocking device is suitable for being used as an anti-misoperation interlocking device for the cable chamber door of the inflatable cabinet and the structural improvement of similar products.
Drawings
FIG. 1 is a schematic view of an initial state front view structure of the present utility model, wherein part A is framed, and another framed part is drawn out for enlargement.
Fig. 2 is a schematic view of the left-hand perspective structure of fig. 1.
Fig. 3 is a schematic view of the right-side perspective structure of fig. 1, in which the two-part extraction of the interlocking plate is enlarged.
Fig. 4 is a schematic view of the open structure of the cable compartment door of the utility model, wherein the part B is framed, and the other framed part is drawn out for enlargement and cross section.
Fig. 5 is a schematic view of the left-hand perspective structure of fig. 4.
Fig. 6 is a right side perspective view of fig. 4.
Fig. 7 is an enlarged view of the principle of the a-section structure of fig. 1.
Fig. 8 is a schematic diagram of the left-hand structure of fig. 7.
Fig. 9 is an enlarged view of the B-section structure principle of fig. 4.
Fig. 10 is a schematic diagram of the left-hand structure of fig. 9.
The name of the serial number in the figure is: 1. three-station indicating disc 2, spring pressing plate 3, interlocking half shaft 4, bracket 5, mounting plate 6, ejector rod 7, hanging spring pin 8, tension spring 9, pin one, 10, interlocking plate one, 11, breaker mechanism side plate 12, compression spring 13, pin two, 14, manual brake release button 15, interlocking plate two, 1501, transverse plate 16, mechanism brake closing shaft 17, pin three, 18, interlocking crank arm 19, interlocking rod 20, compression spring 21, fixing sleeve 22, locking nut 23, pin one, 24, tilting rod crank arm 25, connecting shaft 26, support, 27, pin two, 28, adjusting connecting rod 29, breaker frame 30, compression spring 31, sliding connecting plate 32, supporting screw 33, cable chamber door connecting plate 34, bearing 35, cable chamber bracket 36, pin four, 37, cable chamber door 38, ejector rod.
Detailed Description
The utility model will now be further described with reference to the accompanying drawings. As shown in fig. 1-10, the ejector 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 to a display position to prompt separation and grounding connection and separation. A half-gap is arranged in the middle of a linkage half shaft 3 below the three-station indicating disc 1, a spring pressing plate 2 is arranged on the linkage half shaft 3, and the linkage half shaft 3 is arranged in a symmetrical hole of a bracket 4 to rotate; the spring pressing plate 2 is provided with a boss round pin, the pressing spring 12 is put on and assembled on the mounting plate 5, then the spring pressing plate is mounted on the breaker frame 29, and the interlocking half shaft 3 automatically resets under the action of the pressing spring 12. The first pin 9 and the second pin 13 are respectively arranged on the side plate 11 of the circuit breaker mechanism, and the side plate 11 of the circuit breaker mechanism is arranged on the frame 29 of the circuit breaker; one end of the ejector rod 6 is arranged in a waist-shaped hole of the interlocking plate I10, and the other cylindrical end of the ejector rod 6 passes through a round hole of the bracket 4 and is propped against a notch of the interlocking half shaft 3; the first interlocking plate 10 is provided with two waist-shaped sliding grooves, and the waist-shaped holes of the first interlocking plate are aligned with the two pins for installation, so that the first interlocking plate can slide up and down; one end of the tension spring 8 is hung at the small hole of the first interlocking plate 10, the other end of the tension spring is hung at the small hole of the hanging spring pin 7, and 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 hole at the lower end of the frame 29, is arranged on the first interlocking plate 10 along the side plate 11 of the circuit breaker mechanism, is provided with three bending points, the upper bending point is propped against the manual brake separating button 14, the short bending point at the lower end is welded with the first pin roll 23, and the long bending point at the lower end and the circuit breaker are in interlocking action. The mechanism opening and closing rotating shaft 16 is arranged between the side plates 11 of the circuit breaker mechanism, and the interlocking crank arm 18 is arranged on the mechanism opening and closing rotating shaft 16. The fixed sleeve 21 is arranged on the breaker frame 29, the outer side of the fixed sleeve is fastened by a locking nut 22, the interlocking rod 19 is penetrated by the pressure spring 20, and the inner side of the fixed sleeve 21 is penetrated by a self-locking nut for fastening and limiting. The tilted lever 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 penetrate the support screw 32 and are fixed to the cable chamber support 35. 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 fourth pin 36 penetrates through the bearing 34 to be installed on the sliding connecting plate 31. The cable door interlocking plate 33 is mounted on the cable door 37, the cable door 37 is fixed on the cable door bracket 35, the cable door 37 can swing, and the cable door interlocking plate 33 is provided with a waist-shaped notch inclined by 45 degrees.
The action principle of the device is as follows: when the three stations of the device swing to the grounding joint position, the three-station indicating disc 1 displays grounding joint and isolation division, at the moment, the ejector rod 38 of the three-station indicating disc 1 rotates to the component of the interlocking half shaft 3, the spring pressing plate 2 and the interlocking half shaft 3 are simultaneously opened, the ejector rod 6 is not limited, and at the moment, the circuit breaker is in a breaking state, and the cable chamber door 37 cannot be opened; the circuit breaker is switched on, the mechanism switching-on and switching-off rotating shaft 16 acts to drive the interlocking crank arm 18 to rotate, at the moment, the interlocking rod 19 is not stressed and 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 lever tilting crank arm 24 to tilt up and down, the connecting rod 28 and the sliding connecting plate 31 are adjusted to act downwards along the supporting screw 32 under the action of the second pin 27 and the pressure spring 30, the lower end of a locking notch of the cable chamber door interlocking plate 33 is acted on through the bearing 34, and at the moment, the cable chamber door 37 can be normally opened, so that the cable chamber door can be normally opened or closed; at this time, the breaker is in a closing state and cannot operate the three stations, the second interlocking plate 15 props against the manual opening button 14 in the upward moving process, and the breaker cannot be opened, so that the whole inflatable cabinet is in a complete grounding state under the opening state of the cable chamber door 37.
On the contrary, the cable chamber door is manually closed, the bearing is upwards propped through the lower waist-shaped hole of the cable chamber door interlocking plate, so that the adjusting connecting rod and the sliding connecting plate move upwards, meanwhile, the tilting rod crank arm component is driven to move up and down, the interlocking plate I and the interlocking plate II component 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 interlocking plate II leaves the manual opening button, and the circuit breaker can perform opening operation; the breaker mechanism opening and closing rotating shaft drives the interlocking crank arm to press the interlocking rod downwards, the lower end of the interlocking rod is contacted with and propped against the interlocking plate, and at the moment, the cable chamber door can be opened only in the closing state of the breaker. The circuit breaker can operate three stations after breaking, shake the three stations to the ground connection and separate, separate the state, the ejector pin in the back of the indicating disk leaves the spring clamp plate of interlocking semi-axis, under the action of pressure spring, interlocking semi-axis resets, the ejector pin of the first interlocking board of jacking, this plays the effect that three stations can only open cable chamber door when the ground connection closes the position.
The cable chamber door interlocking plate is provided with a waist-shaped hole notch (locking notch) which is obliquely upwards opened, and the lower plane of the waist-shaped hole notch plays a role in pulling down the first interlocking plate and the second interlocking plate through the warping rod assembly when the cable chamber door is closed, and simultaneously interlocking and acting; when the upper plane of the waist-shaped hole notch plays a role in opening the upper end breaker and the three-station interlocking position, the cable chamber door cannot be forcedly opened under the action of the inclined plane of the interlocking plate.
The device has the following functions: when the inflatable cabinet normally operates, the circuit breaker is in a closing state, and when the three stations are in the 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 rocked from the isolation closing position to the isolation opening position, then the three stations are rocked from the grounding opening position to the grounding closing position, at the moment, the whole inflatable cabinet is not in the grounding state, or the cable chamber door cannot be opened, and at the moment, the circuit breaker is still in the opening state. Then operating the breaker, after closing the breaker, normally opening or closing the cable chamber door in all linkage opening states, and opening the cable chamber door in the cable chamber door opening state, wherein the breaker cannot be opened, and the three stations cannot be operated as well, and only after closing the cable chamber door, the breaker can be opened, and then the three-station switch is operated. Through above-mentioned interlocking device, whole gas-filled cabinet is at the maintenance in-process, because the indoor electrified device that is of cable, if open the cable room door when not confirming the effective ground connection of whole gas-filled cabinet, can appear the accident that the maintainer electrocuted.
The above aims at explaining the technical means of the utility model, but does not limit the technical scope of the utility model, and the device mainly protects the interlocking and linkage structure to realize the control of the cable chamber door by the rotation of the three-station indicating disc and the operation of the mechanism switch-on and switch-off shaft. The present utility model is obviously improved or replaced by combining the prior common knowledge by the person skilled in the art, such as the locking structure of the interlocking plate, the structure and the position of the cable chamber door, the circuit breaker frame and the side plate of the circuit breaker mechanism, and the specific shape of the three-station indicating disc is correspondingly improved, namely, the prior similar products and the position arrangement are adopted to replace the technical characteristics, and the present utility model also falls within the protection scope of the claims of the present utility model.
Claims (8)
1. An anti-misoperation interlocking device for a cable chamber door of an inflatable cabinet comprises a three-station mechanism, a circuit breaker mechanism and a cable chamber, wherein a push 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 to a display position to prompt isolation and grounding connection separation; the three-station indicating disc is characterized in that a breaker frame (29) below the three-station indicating disc (1) is provided with an extending support (4), a linkage half shaft (3) is arranged in the support (4), a half gap is arranged in the middle of the linkage half shaft (3), the outer diameter of the half gap of the linkage half shaft (3) in an initial state is propped against one end of a push rod (6) extending out of the support (4) from the lower side, one side of the back of the three-station indicating disc (1) of the support (4) is provided with a mounting plate (5), a pressure spring (12) of the mounting plate (5) is connected with a spring pressing plate (2), the spring pressing plate (2) is arranged above the half gap of the linkage half shaft (3), the spring pressing plate (2) is aligned with the push rod (38) of the three-station indicating disc (1), and a boss round pin is arranged on the spring pressing 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 tilting lever crank arm (24), and the first interlocking plate (10) and the second interlocking plate (15) are attached to the outer side of a side plate (11) of the circuit breaker mechanism below the circuit breaker frame (29); the other end of the tilted lever 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 another tilted lever crank arm (24), the other end of the other tilted lever 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 fourth pin (36); the bearing (34) and the pin IV (36) are buckled into a locking opening fixed on one side of the cable chamber door interlocking plate (33), the cable chamber door interlocking plate (33) is fixedly arranged on one side of the cable chamber door (37), the cable chamber door (37) is arranged on one side of the cable chamber bracket (35), the other side of the cable chamber door (37) is hinged and fixed on the cable chamber bracket (35), and the interlocking plate I (10) is provided with a hanging spring pin (7) of the circuit breaker frame (29) through a tension spring (8); when the three stations of the device swing to the grounding joint position, the three-station indicating disc (1) displays grounding joint and isolation division, at the moment, the ejector rod (38) of the three-station indicating disc (1) rotates to the interlocking half shaft (3) assembly, the spring pressing plate (2) and the interlocking half shaft (3) are simultaneously opened, the ejector rod (6) is not limited, and at the moment, the circuit breaker is in a breaking state, and the cable chamber door (37) cannot be opened; the circuit breaker is closed, a mechanism closing and opening rotating shaft (16) acts to drive a linkage crank arm (18) to rotate, at the moment, the linkage rod (19) is not stressed and moves upwards under the action of a pressure spring (20), meanwhile, a first linkage plate (10) and a second linkage plate (15) component move upwards along a first pin (9) and a second pin (13) under the action of a tension spring (8), the linkage rod crank arm (24) component is driven to tilt up and down, a connecting rod (28) and a sliding linkage plate (31) component are regulated under the action of a second pin (27) and the pressure spring (30), the lower end of a locking opening of a waist-shaped notch of a cable chamber door linkage plate (33) is acted on 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 and cannot operate the three stations, and the second interlocking plate (15) is propped against the manual opening button (14) in the upward moving process, so that the circuit breaker cannot be opened, and the cable chamber door (37) is in a complete grounding state in an opening state.
2. The anti-misoperation interlocking device for the cable chamber door of the inflatable cabinet according to claim 1 is characterized in that the other end of the second interlocking plate (15) is provided with an extending protruding transverse plate (1501), the transverse plate (1501) of the second interlocking plate (15) is abutted against an interlocking rod (19) extending out of a breaker frame (29), the interlocking rod (19) is connected with a mechanism closing and opening brake shaft (16) in a side plate (11) of the breaker mechanism through an interlocking crank arm (18), and a manual opening brake button (14) is arranged between the side plates (11) of the breaker mechanism.
3. The anti-misoperation interlocking device for the cable chamber door of the gas-filled cabinet according to claim 2, which is characterized in that the interlocking rod (19) is arranged in a fixed sleeve (21) and a locking nut (22) of a circuit breaker frame (29), the outer diameter of the interlocking rod (19) extending out of the fixed sleeve (21) and the locking nut (22) is provided with a pressure spring (20), namely the fixed sleeve (21) is arranged on the circuit breaker frame (29), the outer side of the fixed sleeve (21) is fastened by the locking nut (22), and the interlocking rod (19) is penetrated by the pressure spring (20) to penetrate from the inner side of the fixed sleeve (21) to be fastened and limited by the self-locking nut.
4. The anti-misoperation interlocking device for the cable chamber door of the inflatable cabinet according to claim 1 is characterized in that waist-shaped holes are respectively formed in two ends of the first interlocking plate (10), the waist-shaped holes in two ends of the first interlocking plate (10) are fixed on one side of a side plate (11) of the circuit breaker mechanism through a first pin (9) and a second pin (13), the waist-shaped holes in the middle of the second interlocking plate (15) are fixed on one side of the first interlocking plate (10) of the side plate (11) of the circuit breaker mechanism through a third pin (17), meanwhile, the second interlocking plate (15) extends out of a circuit breaker frame (29) and is connected with a tilting lever crank arm (24) through a first pin (23), a connecting shaft (25) is arranged on a cable chamber support (35) below the circuit breaker frame (29) through a support (26), and the other tilting lever crank arm (24) is connected with an adjusting connecting rod (28) through a second pin (27).
5. The anti-misoperation interlocking device for the cable chamber door of the inflatable cabinet according to claim 1, wherein waist-shaped holes symmetrically arranged at two 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 inflatable cabinet according to claim 1 is characterized in that the mounting plate (5) is T-shaped, one end of the mounting plate (5) is movably inserted into an extending hole of a circuit 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 bulge between two ends of the mounting plate (5) is attached above the extending hole of the circuit 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 circuit breaker frame (29), the three-station indicating disc (1) is positioned on one side of a cable chamber door interlocking plate (33) above the circuit breaker frame (29), and symmetrically arranged circuit breaker mechanism side plates (11) are arranged in an opening on one side of a cable chamber door (37) of the circuit breaker frame (29).
8. The anti-misoperation interlocking device for the cable door of the inflatable cabinet according to claim 1, wherein the cable door interlocking plate (33) is installed on the cable door (37), the cable door (37) is fixed on the cable door support (35), the cable door can shake, and a locking opening of the cable door interlocking plate (33) is a waist-shaped notch inclined by 45 degrees.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111208672.8A CN114141557B (en) | 2021-10-18 | 2021-10-18 | Anti-misoperation interlocking device for cable chamber door of inflatable cabinet |
Applications Claiming Priority (1)
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| CN207269108U (en) * | 2017-10-29 | 2018-04-24 | 默飓电气有限公司 | A kind of new switchgear |
| KR101912449B1 (en) * | 2018-07-06 | 2018-10-26 | 주식회사 비츠로테크 | The high voltage switchgear having a remote racking system |
| CN211957567U (en) * | 2020-06-02 | 2020-11-17 | 兰姆达电气技术（苏州）有限公司 | Integrated interlocking mechanism of gas charging cabinet |
| CN113327792A (en) * | 2021-06-10 | 2021-08-31 | 上海大华电器设备有限公司 | Three-station switch mechanism and cable chamber door interlocking device for environment-friendly inflating cabinet |
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| KR20020035675A (en) * | 2000-11-07 | 2002-05-15 | 이종수 | the interlock device in earthing switch of vacuum circuit breaker |
| CN202771994U (en) * | 2012-07-16 | 2013-03-06 | 上海天灵开关厂有限公司 | Mechanical interlocking device applied between line grounding and cable chamber door of cubicle gas insulated switchgear |
| CN103996990A (en) * | 2014-05-29 | 2014-08-20 | 厦门兴厦控电气有限公司 | Novel inflatable switch cabinet |
| CN205881795U (en) * | 2016-07-18 | 2017-01-11 | 江苏明及电气股份有限公司 | Vacuum circuit breaker |
| RU172288U1 (en) * | 2017-01-10 | 2017-07-04 | Закрытое акционерное общество "Группа компаний "Электрощит"-ТМ Самара" | SWITCHING DEVICE FOR SWITCHING APPLIANCES AND CABLE DOORS OF THE DISTRIBUTION DEVICE |
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| CN113327792A (en) * | 2021-06-10 | 2021-08-31 | 上海大华电器设备有限公司 | Three-station switch mechanism and cable chamber door interlocking device for environment-friendly inflating cabinet |
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| CN114141557A (en) | 2022-03-04 |
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