CN109346345B - Hook type cable chamber door and grounding switch interlocking control method - Google Patents
Hook type cable chamber door and grounding switch interlocking control method Download PDFInfo
- Publication number
- CN109346345B CN109346345B CN201811221984.0A CN201811221984A CN109346345B CN 109346345 B CN109346345 B CN 109346345B CN 201811221984 A CN201811221984 A CN 201811221984A CN 109346345 B CN109346345 B CN 109346345B
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- cable chamber
- chamber door
- grounding switch
- hook
- sliding block
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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
- H01H9/226—Interlocking, locking, or latching mechanisms for interlocking between casing, cover, or protective shutter and mechanism for operating contacts the casing containing electrical equipment other than and operated by the switch
Abstract
The invention discloses a hook type cable chamber door and grounding switch interlocking control method, which comprises the following steps that when high-voltage switch equipment needs to normally operate, a grounding switch operating shaft of a grounding switch is anticlockwise rotated, and the grounding switch is in a brake-off state after the grounding switch operating shaft of the grounding switch is anticlockwise rotated to a set angle; horizontal migration right under the drive shaft pushing effect with the tangent jam plate of drive shaft right, the slider that is located on the jam plate moves right, guide block on the slider provides the direction of downstream for the slider simultaneously, after the slider moves to the settlement position, the slider stops after being located the top position of the couple on the cable chamber door, the couple on the cable chamber door is blockked to the slider and is carried on spacingly to the couple, from this cable chamber door can not be opened, the same reason, it realizes that cable chamber door is opened to rotate earthing switch operating axis with opposite direction, the effectual safe operation requirement that improves high voltage switchgear of this control method, human and property safety have been guaranteed.
Description
Technical Field
The invention relates to the technical field of power switch equipment, in particular to a hook type cable chamber door and grounding switch interlocking control method.
Background
The high-voltage switch equipment is an electric appliance with rated voltage of 1kV or above, is mainly used for switching on and off a conductive loop, is a general term formed by the high-voltage switch, corresponding control, measurement, protection and regulation devices, auxiliary parts, shells, supports and other parts and electrical and mechanical connection of the high-voltage switch, and is important control equipment for switching on and off the loop, cutting off and isolating faults.
there are two types of grounding switches: and the earthing switch and the quick earthing switch are overhauled. The quick grounding switch is a special grounding switch with certain capability of closing short-circuit current. When the line ground fault is cut off, the adjacent running lines supply power to form secondary arc current of the fault line, the secondary arc current can be eliminated by utilizing the quick grounding switch to be closed, and then the grounding switch is quickly switched on and off to ensure that the automatic reclosing of the line can be successful. The maintenance grounding switch is arranged beside the disconnecting switches on the two sides of the circuit breaker and only plays a role of grounding the two sides when the circuit breaker is maintained; the quick grounding switch is arranged on one side of the outgoing line isolating switch of the outgoing line loop, which is close to the line, and has the following functions: the open-close parallel overhead line generates capacitance current due to electrostatic induction and generates inductance current due to electromagnetic induction; when the insulator in the shell has creepage or the shell is in arcing, the main circuit is quickly grounded by the quick grounding switch, and the fault current is cut off by the breaker.
because high-voltage switchgear's voltage is high, for guarantee operation maintainer's personal safety, prevent that operating personnel from mistake from getting into electrified compartment, high-voltage switchgear needs the installation safe and reliable interlock, satisfies "five prevent" shutting requirement. The interlocking requirement between the lower door of the cabinet body and the grounding switch is as follows: when the high-voltage switch equipment operates, the grounding switch is in a brake-off state, and the lower door of the cabinet body with the electric compartment is prevented from being opened, so that the operation safety is ensured. When equipment needs to be overhauled, after the switch is powered off, the grounding switch in the cabinet needs to be in a closing state, namely the inside of the cabinet is safely grounded, and the lower door of the cabinet can be opened. The setting requirement is mainly to prevent misoperation of the high-voltage isolating switch, prevent personnel from entering a cable chamber to be overhauled and maintained in an electrified way, and prevent dangerous accidents. In addition, when the equipment has sudden failure and the grounding switch cannot be switched on, the lower door of the cabinet body can be quickly opened in an emergency unlocking mode. The mechanical interlocking device of present cable chamber cabinet door structure is complicated, and the transmission process is loaded down with trivial details, and jamming or necrosis appear easily in the mechanism, defect at the bottom of life.
Disclosure of Invention
The invention aims to solve the technical problems that the existing mechanical interlocking device for the cable chamber door is complex in structure, complicated in transmission process, easy to cause clamping stagnation or necrosis of a mechanism and short in service life, and provides a hook type cable chamber door and grounding switch interlocking control method.
The invention is realized by the following technical scheme:
When high-voltage switch equipment needs to normally operate, a hook on the cable chamber door is hung on a hanging hole of the cable chamber, and the cable chamber door is used for closing the cable chamber; rotating an earthing switch operating shaft of the earthing switch anticlockwise, wherein the earthing switch is in a brake-off state after the earthing switch operating shaft of the earthing switch rotates anticlockwise to a set angle; in the process of anticlockwise rotating of the earthing switch operating shaft, the driving shaft positioned at the front end of the earthing switch operating shaft rotates anticlockwise, the locking plate tangent to the driving shaft horizontally moves rightwards under the action of rightward pushing of the driving shaft, the sliding block positioned on the locking plate moves rightwards, meanwhile, the guide block on the sliding block provides downward movement guide for the sliding block, after the sliding block moves to a set position, the sliding block stops after being positioned at the top of the hook on the cable chamber door, the sliding block blocks the hook on the cable chamber door and limits the hook, and therefore the cable chamber door cannot be opened;
when the high-voltage switch equipment needs to be overhauled, a grounding switch operating shaft of the grounding switch is rotated clockwise, and the grounding switch is in a closing state after the grounding switch operating shaft of the grounding switch is rotated clockwise to a set angle; in the process of the clockwise rotation of the earthing switch operating shaft, the driving shaft located at the front end of the earthing switch operating shaft follows the clockwise rotation of the earthing switch operating shaft, the locking plate tangent to the driving shaft horizontally moves leftwards under the action of the tension of the reset spring, the sliding block located on the locking plate moves leftwards, meanwhile, the guide block on the sliding block provides upward movement for the sliding block, the sliding block is located behind the top position of the hook on the staggered cable chamber door and stops, the sliding block is used for releasing the hook on the cable chamber door to be limited, and therefore the cable chamber door can be opened.
Preferably, the cable chamber includes left side board and right side board, connects through a plurality of crossbeams between left side board and right side board, the left side and the right side of cable chamber door are equipped with a plurality of couples respectively, and the couple on cable chamber door left couple and right side is arranged along the direction of height interval equipartition of cable chamber door, is equipped with the first hem of being connected with the couple of cable chamber door at the front end of left side board and right side board, offers the hanging hole of being connected with the couple on first hem, the cable chamber door stretches into the hanging hole through the couple and is connected with left side board and right side board, the indoor fixedly connected with earthing switch of cable, earthing switch fixed mounting is on the left side board, and earthing switch includes the earthing switch operating axis that is connected the setting with earthing switch, the earthing switch operating axis is used for operating earthing switch divide-shut brake action:
The left side plate is also provided with an interlocking mechanism for locking a cable chamber door, the interlocking mechanism comprises a positioning plate, the positioning plate is vertically connected with the left side plate, the back surface of the positioning plate is riveted with a guide pin, the guide pin is vertically connected with the positioning plate, the back surface of the positioning plate is slidably connected with a locking plate, the locking plate is arranged in parallel with the positioning plate, a first guide hole in the horizontal direction is formed in the locking plate, the guide pin is sleeved in the first guide hole in a penetrating manner, the locking plate freely slides leftwards and rightwards on the positioning plate, a second guide hole in the vertical direction is formed in the locking plate, a sliding block is slidably connected in the second guide hole and positioned above any hook, the sliding block moves leftwards and rightwards in the direction close to and far away from the hook along with the locking plate;
A guide block is further matched above the sliding block, the guide block is fixed on the left side plate, an inclined plane is arranged on the bottom surface of the guide block, an inclined plane parallel to the bottom surface of the guide block is arranged on the top surface of the sliding block, the inclined plane extends towards the direction of the hook, and the sliding block moves up and down along the direction of the bottom surface of the guide block;
The grounding switch operating shaft is provided with a driving assembly for driving the locking plate to move left and right, the driving assembly comprises a shaft sleeve sleeved on the grounding switch operating shaft, the end part of the shaft sleeve is fixedly connected with a rotary table, the end part of the rotary table is fixedly connected with a driving shaft, the driving shaft is positioned at the position far away from the circle center of the rotary table, the excircle of the driving shaft is tangent to a shifting plate on the right side of the locking plate, and the driving shaft is used for driving a sliding block on the locking plate to move left;
Be connected with reset spring between jam plate and the left side board, reset spring's one end is connected with the jam plate, and reset spring's the other end is connected with the left side board.
According to the preferable scheme, the front end of the left side plate is further provided with a second folded edge, the second folded edge is located on the right side of the first folded edge and is parallel to the left side plate, mounting holes for mounting the guide block are formed in the left side plate and the second folded edge, one end of the guide block is fixedly connected with the left side plate, the other end of the guide block is fixedly connected with the second folded edge, a T-shaped groove is formed in the inclined surface of the guide block, and a T-shaped protrusion matched with the T-shaped groove is arranged at the top of the sliding block.
According to the preferable scheme, the driving shaft is sleeved with a roller, the excircle of the roller is tangent to the shifting plate, the roller is a deep groove ball bearing, the end part of the driving shaft is provided with an annular groove, and a shaft retainer ring is clamped in the annular groove.
According to the preferable scheme, the hanging hole is a rectangular hole, the length of the hanging hole is larger than the maximum length of the hook, and the width of the hanging hole is larger than the thickness of the hook.
preferably, the reset spring is an extension spring, the two ends of the reset spring are respectively provided with a spring hook, one of the spring hooks is connected with the lock plate, and the other spring hook is connected with the left side plate.
According to the preferable scheme, the number of the guide pins is two, the two guide pins are parallel to each other and are riveted to the back face of the positioning plate at intervals, the first guide hole is a long waist hole, and the length of the long waist hole is larger than the length between the two guide pins.
Compared with the prior art, the invention has the following advantages and beneficial effects: according to the interlocking control method for the hook type cable chamber door and the grounding switch, when high-voltage switch equipment needs to normally operate, the grounding switch operating shaft of the grounding switch is rotated anticlockwise, and the grounding switch is in a switching-off state after the grounding switch operating shaft of the grounding switch rotates anticlockwise to a set angle; in the process of anticlockwise rotation of the earthing switch operating shaft, the driving shaft located at the front end of the earthing switch operating shaft rotates anticlockwise along with the earthing switch operating shaft, the locking plate tangent to the driving shaft horizontally moves rightwards under the action of rightward pushing of the driving shaft, the sliding block located on the locking plate moves rightwards, meanwhile, the guide block on the sliding block provides downward movement guide for the sliding block, after the sliding block moves to a set position, the sliding block stops after being located at the top of the hook on the cable chamber door, the sliding block blocks the hook on the cable chamber door and limits the hook, and therefore the cable chamber door cannot be opened. When the high-voltage switch equipment needs to be overhauled, a grounding switch operating shaft of the grounding switch is rotated clockwise, and the grounding switch is in a closing state after the grounding switch operating shaft of the grounding switch is rotated clockwise to a set angle; in the process of the clockwise rotation of the earthing switch operating shaft, the driving shaft located at the front end of the earthing switch operating shaft follows the clockwise rotation of the earthing switch operating shaft, the locking plate tangent to the driving shaft horizontally moves leftwards under the action of the tension of the reset spring, the sliding block located on the locking plate moves leftwards, meanwhile, the guide block on the sliding block provides upward movement for the sliding block, the locking plate is located behind the top position of the hook on the staggered cable chamber door and stops, the sliding block is used for releasing the hook on the cable chamber door to be limited, and therefore the cable chamber door can be opened. According to the control method, in the process that the sliding block moves left and right along with the locking plate, the guide block positioned above the sliding block provides up-and-down movement guide for the sliding block, and the sliding block is positioned above the hook, so that the hook is forced to move downwards to a set position by the sliding block when the sliding block moves downwards, a cable chamber door is hooked in place, potential safety hazards are eliminated, misoperation caused by the fact that the cable chamber is electrified is avoided, and personal and property safety is guaranteed.
drawings
the accompanying drawings, which are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the principles of the invention. In the drawings:
fig. 1 is a structural schematic diagram of a closing state of the grounding switch according to the present invention;
FIG. 2 is an enlarged view of a portion of FIG. 1 at I;
FIG. 3 is a schematic diagram of a partial structure of the grounding switch in the open state according to the present invention;
FIG. 4 is a schematic view of the inventive interlock mechanism opening cable chamber door structure;
FIG. 5 is a schematic view of the inventive interlock mechanism closing the cable chamber door structure;
fig. 6 is a schematic view of the structure of the lock plate of the present invention.
Reference numbers and corresponding part names in the drawings:
101-left side plate, 102-cross beam, 103-right side plate, 104-cable chamber door, 105-hook, 201-grounding switch, 202-grounding switch operating shaft, 301-positioning plate, 302-locking plate, 303-reset spring, 304-guide block, 305-shaft sleeve, 306-rotating disc, 307-sliding block, 308-driving shaft, 309-roller, 3021-shifting plate, 3022-first guide hole, and 3023-second guide hole.
Detailed Description
in order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to examples and accompanying drawings, and the exemplary embodiments and descriptions thereof are only used for explaining the present invention and are not meant to limit the present invention.
Examples
As shown in fig. 1 to 6, the invention relates to a hook type cable chamber door and grounding switch interlocking control method, which comprises the steps of hanging a hook 105 on a cable chamber door 104 on a hanging hole of a cable chamber when a high-voltage switch device needs to normally operate, wherein the cable chamber door 104 is used for closing the cable chamber. The earthing switch operating shaft 202 of the earthing switch 201 is rotated counterclockwise, and the earthing switch 201 is in an open state after the earthing switch operating shaft 202 of the earthing switch 201 is rotated counterclockwise to 90 degrees. During the counterclockwise rotation of the earthing switch operating shaft 202, the drive shaft 308 located at the front end of the earthing switch operating shaft 202 follows the counterclockwise rotation thereof, and the lock plate 302 tangent to the drive shaft 308 is horizontally moved rightward by the rightward pushing action of the drive shaft 308. The slider 307 on the lock plate 302 moves rightwards along with the lock plate, meanwhile, the guide block 304 on the slider 307 provides a guide for the slider 307 to move downwards, after the slider 307 moves rightwards and downwards to a set position, the slider 307 stops after being positioned at the top position of the hook 105 on the cable chamber door 104, the slider 307 blocks the hook 105 on the cable chamber door 104 and limits the hook 105, and therefore the cable chamber door 104 cannot be opened.
when the high-voltage switch equipment needs to be overhauled, the grounding switch operation shaft 202 of the grounding switch 201 is rotated clockwise, and the grounding switch 201 is in a closing state after the grounding switch operation shaft 202 of the grounding switch 201 rotates clockwise to 90 degrees. During the clockwise rotation of the earthing switch operating shaft 202, the drive shaft 308 at the front end of the earthing switch operating shaft 202 rotates clockwise, and the lock plate 302 tangent to the drive shaft 308 moves horizontally to the left under the tension of the return spring 303. The slider 307 on the lock plate 302 moves to the left, and the guide block 304 on the slider 307 provides a guide for the slider 307 to move upward, and after the slider 307 moves to the set position in the left-up direction, the slider 307 stops after being positioned at the top position of the hook 105 on the cable chamber door 104, and the slider 307 releases the position of the hook 105 on the cable chamber door 104, so that the cable chamber door 104 can be opened.
the cable chamber comprises a left side plate 101 and a right side plate 103, the left side plate 101 and the right side plate 103 are connected through four cross beams 102, the four cross beams 102 are respectively connected with four corner positions of the left side plate 101 and the right side plate 103, and the left side plate 101, the right side plate 103 and the four cross beams 102 form a cavity of the cable chamber.
Cable chamber door 104's left side and right side are equipped with a plurality of couples 105 respectively, and the quantity of couple 105 is according to cable chamber door 104's high definite, and a plurality of couples 105 are arranged along cable chamber door 104's direction of height interval equipartition, and the distance between two adjacent couples 105 is 150 mm. The front ends of the left side plate 101 and the right side plate 103 are provided with first folding edges connected with a plurality of hooks 105 of the cable chamber door 104, hanging holes matched with the hooks 105 are formed in the first folding edges, and the hooks 105 of the cable chamber door 104 extend into the hanging holes to be detachably connected with the left side plate 101 and the right side plate 103. The hanging hole is a rectangular hole, the length of the hanging hole is larger than the maximum length of the hook 105, the width of the hanging hole is larger than the thickness of the hook 105, and the hook 105 can conveniently stretch into the hanging hole. The hooks 105 of the cable chamber door 104 are hung in the hanging holes on the left side plate 101 and the right side plate 103 under the action of gravity, and the cable chamber door 104 can be taken out only by lifting the cable chamber door 104 upwards to a set position and then moving the cable chamber door forwards to take out all the hooks 105 from the hanging holes during disassembly.
an earthing switch 201 is fixedly connected in the cable chamber, and the earthing switch 201 is a JN15-12 type high-voltage earthing switch. The earthing switch 201 is fixedly mounted on the left side plate 101, the earthing switch 201 includes an earthing switch operating shaft 202 connected to the earthing switch 201, and the earthing switch operating shaft 202 is used for operating the opening and closing operation of the earthing switch 201. When the grounding switch operating shaft 202 is driven by an external force to rotate clockwise by 90 degrees, the grounding switch 201 is in a closing state, and when the grounding switch operating shaft 202 is driven by the external force to rotate counterclockwise by 90 degrees, the grounding switch 201 is in a opening state.
The left side plate 101 is further provided with an interlocking mechanism for locking the cable chamber door 104, the interlocking mechanism comprises a positioning plate 301, the positioning plate 301 is of an L-shaped structure, the positioning plate 301 is vertically connected with the left side plate 101, the back of the positioning plate 301 is riveted with two guide pins, and the two guide pins are parallelly riveted on the back of the positioning plate 301 at intervals. A lock plate 302 is slidably attached to the back of the positioning plate 301, and the lock plate 302 is disposed parallel to the positioning plate 301. A first guide hole 3022 is horizontally formed in the lock plate 302, a center line of the guide hole 3023 is parallel to a center line of the lock plate 302, a guide pin of the positioning plate 301 is inserted into the first guide hole 3022, the guide hole 3022 is a long waist-shaped hole, the length of the long waist-shaped hole is greater than the length between the two guide pins, and the lock plate 302 freely slides left and right on the positioning plate 301 along the length direction of the first guide hole 3022.
A second guide hole 3023 in the vertical direction is formed in the lock plate 302, a sliding block 307 is connected in the second guide hole 3023 in a sliding manner, the sliding block 307 is positioned above any hook 105, the sliding block 307 moves left and right along with the lock plate 302 in the direction close to and away from the hook 105, a shifting plate 3021 is arranged on the right side of the lock plate, the sliding block 307 is positioned above any hook 105, the sliding block 307 moves left and right along with the lock plate 302 in the direction close to and away from the hook 105, when the sliding block 307 is positioned right above the hook 105, the sliding block 307 is used for limiting the hook 105, and the cable chamber door 104 cannot be taken down; when the slider 307 is positioned at the upper left of the hook 105, the slider 307 releases the position restriction of the hook 105, and the cable chamber door 104 can be removed.
a guide block 304 is further fitted above the slider 307, the guide block 304 is fixed to the left side plate 101, an inclined surface is provided on the bottom surface of the guide block 304, an inclined surface parallel to the bottom surface of the guide block 304 is provided on the top surface of the slider 307, the inclined surface extends in the direction of the hook 105, and the slider 307 moves up and down in the direction of the bottom surface of the guide block 304. In the process of the slide block 307 moving left and right along with the lock plate 302, the guide block 304 positioned above the slide block 307 provides the slide block 307 with the guide for moving up and down, because the slide block 307 is positioned above the hook 105. When the sliding block 307 moves downwards gradually, the sliding block 307 forces the hook 105 to move downwards to a set position, so that the cable chamber door 104 is hooked in place, the interlocking mechanism is prevented from being out of work due to the fact that the cable chamber door 104 is not hooked in place, and potential safety hazards are eliminated.
The ground switch operating shaft 202 is provided with a driving assembly for driving the locking plate 302 to move left and right, the driving assembly comprises a shaft sleeve 305 sleeved on the ground switch operating shaft 202, a rotary table 306 is fixedly connected to the end portion of the shaft sleeve 305, a driving shaft 308 is fixedly connected to the end portion of the rotary table 306, the driving shaft 308 is located at the position far away from the circle center of the rotary table 306, and the driving shaft 308 is used for driving the locking plate 302 to horizontally move left and right. The driving shaft 308 is sleeved with a roller 309, the excircle of the roller 309 is tangent to the shifting plate 3021, the roller 309 is preferably a deep groove ball bearing, the end of the driving shaft 308 is provided with an annular groove, a shaft retaining ring is clamped in the annular groove, and the roller 309 is mounted on the driving shaft by the shaft retaining ring to prevent the roller from falling off from the driving shaft. The roller 309 is connected with the dial plate 3021 by rolling friction, so that the dial plate 3021 is prevented from being deformed, and the transmission precision is improved.
A return spring 303 is connected between the lock plate 302 and the left side plate 101, the return spring 303 is an extension spring, two ends of the return spring 303 are respectively provided with a spring hook, one of the spring hooks is connected with the lock plate 302, and the other spring hook is connected with the left side plate 101. The return spring 303 is used to drive the locking plate 302 to move leftward automatically without external force.
The front end of left side board 101 still is equipped with the second hem, and the second hem is located the right side of first hem, and the second hem is parallel with left side board 101, offers the mounting hole of installation guide block 304 at left side board and second hem, the one end and the left side board 101 fixed connection of guide block 304, the other end and the second hem fixed connection of guide block 304. The inclined surface of the guide block 304 is provided with a T-shaped groove, the top of the sliding block 307 is provided with a T-shaped bulge matched with the T-shaped groove, and the guide block 304 provides up-and-down motion guide for the sliding block 307 and also provides left-and-right motion guide for the sliding block 307, so that the running track of the sliding block 307 can be conveniently controlled.
the above-mentioned embodiments are intended to illustrate the objects, technical solutions and advantages of the present invention in further detail, and it should be understood that the above-mentioned embodiments are merely exemplary embodiments of the present invention, and are not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (6)
1. A hook type cable chamber door and grounding switch interlocking control method is characterized in that when high-voltage switch equipment needs to normally operate, a hook on the cable chamber door is hung on a hanging hole of a cable chamber, and the cable chamber door is used for closing the cable chamber; rotating an earthing switch operating shaft of the earthing switch anticlockwise, wherein the earthing switch is in a brake-off state after the earthing switch operating shaft of the earthing switch rotates anticlockwise to a set angle; in the process of anticlockwise rotating of the earthing switch operating shaft, the driving shaft positioned at the front end of the earthing switch operating shaft rotates anticlockwise, the locking plate tangent to the driving shaft horizontally moves rightwards under the action of rightward pushing of the driving shaft, the sliding block positioned on the locking plate moves rightwards, meanwhile, the guide block on the sliding block provides downward movement guide for the sliding block, after the sliding block moves to a set position, the sliding block stops after being positioned at the top of the hook on the cable chamber door, the sliding block blocks the hook on the cable chamber door and limits the hook, and therefore the cable chamber door cannot be opened;
When the high-voltage switch equipment needs to be overhauled, a grounding switch operating shaft of the grounding switch is rotated clockwise, and the grounding switch is in a closing state after the grounding switch operating shaft of the grounding switch is rotated clockwise to a set angle; in the process of clockwise rotation of the earthing switch operating shaft, the driving shaft positioned at the front end of the earthing switch operating shaft rotates clockwise along with the earthing switch operating shaft, the locking plate tangent to the driving shaft horizontally moves leftwards under the action of the tension of the reset spring, the sliding block positioned on the locking plate moves leftwards, meanwhile, the guide block on the sliding block provides upward movement guide for the sliding block, the sliding block stops after being positioned at the top of the hook staggered on the cable chamber door, and the sliding block relieves the limit of the hook on the cable chamber door, so that the cable chamber door can be opened;
the cable chamber comprises a left side plate and a right side plate which are connected through a plurality of cross beams, the left side and the right side of the cable chamber door are respectively provided with a plurality of hooks, the left hooks and the right hooks of the cable chamber door are uniformly distributed along the height direction of the cable chamber door at intervals, the front ends of the left side plate and the right side plate are provided with first folding edges connected with the hooks of the cable chamber door, hanging holes connected with the hooks are arranged on the first folding edges, the cable chamber door is connected with the left side plate and the right side plate by extending the hooks into the hanging holes, the cable chamber is fixedly connected with a grounding switch which is fixedly arranged on the left side plate, the grounding switch comprises a grounding switch operating shaft connected with the grounding switch, and the grounding switch operating shaft is used for operating the switching-on and switching-off actions of the grounding switch,
The left side plate is also provided with an interlocking mechanism for locking a cable chamber door, the interlocking mechanism comprises a positioning plate, the positioning plate is vertically connected with the left side plate, the back surface of the positioning plate is riveted with a guide pin, the guide pin is vertically connected with the positioning plate, the back surface of the positioning plate is slidably connected with a locking plate, the locking plate is arranged in parallel with the positioning plate, a first guide hole in the horizontal direction is formed in the locking plate, the guide pin is sleeved in the first guide hole in a penetrating manner, the locking plate freely slides leftwards and rightwards on the positioning plate, a second guide hole in the vertical direction is formed in the locking plate, a sliding block is slidably connected in the second guide hole and positioned above any hook, the sliding block moves leftwards and rightwards in the direction close to and far away from the hook along with the locking plate;
A guide block is further matched above the sliding block, the guide block is fixed on the left side plate, an inclined plane is arranged on the bottom surface of the guide block, an inclined plane parallel to the bottom surface of the guide block is arranged on the top surface of the sliding block, the inclined plane extends towards the direction of the hook, and the sliding block moves up and down along the direction of the bottom surface of the guide block;
The grounding switch operating shaft is provided with a driving assembly for driving the locking plate to move left and right, the driving assembly comprises a shaft sleeve sleeved on the grounding switch operating shaft, the end part of the shaft sleeve is fixedly connected with a rotary table, the end part of the rotary table is fixedly connected with a driving shaft, the driving shaft is positioned at the position far away from the circle center of the rotary table, the excircle of the driving shaft is tangent to a shifting plate on the right side of the locking plate, and the driving shaft is used for driving a sliding block on the locking plate to move left;
be connected with reset spring between jam plate and the left side board, reset spring's one end is connected with the jam plate, and reset spring's the other end is connected with the left side board.
2. The interlocking control method for the hook type cable chamber door and the grounding switch according to claim 1, wherein a second folded edge is further arranged at the front end of the left side plate, the second folded edge is positioned on the right side of the first folded edge and is parallel to the left side plate, mounting holes for mounting guide blocks are formed in the left side plate and the second folded edge, one end of each guide block is fixedly connected with the left side plate, the other end of each guide block is fixedly connected with the second folded edge, a T-shaped groove is formed in the inclined surface of each guide block, and a T-shaped protrusion matched with the T-shaped groove is arranged at the top of each sliding block.
3. The interlocking control method for the hook type cable chamber door and the grounding switch as claimed in claim 2, wherein a roller is sleeved on the driving shaft, the excircle of the roller is tangent to the shifting plate, the roller is a deep groove ball bearing, an annular groove is formed in the end portion of the driving shaft, and a shaft retaining ring is clamped in the annular groove.
4. The interlocking control method for the door of the hook-type cable compartment and the grounding switch as claimed in claim 2, wherein the hanging hole is a rectangular hole, the length of the hanging hole is greater than the maximum length of the hook, and the width of the hanging hole is greater than the thickness of the hook.
5. The interlocking control method for the hook type cable chamber door and the grounding switch as claimed in claim 2, wherein the return spring is an extension spring, and spring hooks are respectively arranged at two ends of the return spring, wherein one spring hook is connected with the locking plate, and the other spring hook is connected with the left side plate.
6. The interlocking control method for the door of the hook-type cable compartment and the grounding switch as claimed in claim 2, wherein two guide pins are provided, the two guide pins are parallel and riveted on the back surface of the positioning plate at intervals, the first guide hole is a long waist hole, and the length of the long waist hole is greater than the length between the two guide pins.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811221984.0A CN109346345B (en) | 2018-10-19 | 2018-10-19 | Hook type cable chamber door and grounding switch interlocking control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811221984.0A CN109346345B (en) | 2018-10-19 | 2018-10-19 | Hook type cable chamber door and grounding switch interlocking control method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109346345A CN109346345A (en) | 2019-02-15 |
| CN109346345B true CN109346345B (en) | 2019-12-13 |
Family
ID=65309430
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811221984.0A Active CN109346345B (en) | 2018-10-19 | 2018-10-19 | Hook type cable chamber door and grounding switch interlocking control method |
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| CN111415831B (en) * | 2020-03-14 | 2022-04-08 | 广东正超电气有限公司 | Mechanical locking control mechanism for grounding switch and cable chamber door of switch cabinet |
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| DE102012205234A1 (en) * | 2012-03-30 | 2013-10-02 | Siemens Aktiengesellschaft | Locking device with door interrogation |
| CN203552985U (en) * | 2013-11-19 | 2014-04-16 | 施耐德电气华电开关(厦门)有限公司 | Earthing switch and rear door interlocking mechanism |
| CN204303605U (en) * | 2015-01-21 | 2015-04-29 | 深圳市蓝希望电子有限公司电气设备制造厂 | A kind of interlock preventing mistakenly entering charged chamber |
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Effective date of registration: 20191122 Address after: 510080 Dongfeng East Road, Dongfeng, Guangdong, Guangzhou, Zhejiang Province, No. 8 Applicant after: ELECTRIC POWER RESEARCH INSTITUTE, GUANGDONG POWER GRID CO., LTD. Address before: 610000 Sichuan city of Chengdu province Tianfu Tianfu Avenue South Huayang Street No. 846 Applicant before: Sichuan Xingzhi Intellectual Property Operation Service Co., Ltd. |