CN117394189B - Switch cabinet valve device and switch cabinet thereof - Google Patents
Switch cabinet valve device and switch cabinet thereof Download PDFInfo
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- CN117394189B CN117394189B CN202311359405.XA CN202311359405A CN117394189B CN 117394189 B CN117394189 B CN 117394189B CN 202311359405 A CN202311359405 A CN 202311359405A CN 117394189 B CN117394189 B CN 117394189B
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/02—Details
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
- G08B21/18—Status alarms
- G08B21/187—Machine fault alarms
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B7/00—Signalling systems according to more than one of groups G08B3/00 - G08B6/00; Personal calling systems according to more than one of groups G08B3/00 - G08B6/00
- G08B7/06—Signalling systems according to more than one of groups G08B3/00 - G08B6/00; Personal calling systems according to more than one of groups G08B3/00 - G08B6/00 using electric transmission, e.g. involving audible and visible signalling through the use of sound and light sources
-
- 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
- H02B1/28—Casings; Parts thereof or accessories therefor dustproof, splashproof, drip-proof, waterproof or flameproof
-
- 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
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B11/00—Switchgear having carriage withdrawable for isolation
- H02B11/02—Details
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B11/00—Switchgear having carriage withdrawable for isolation
- H02B11/12—Switchgear having carriage withdrawable for isolation with isolation by horizontal withdrawal
- H02B11/167—Switchgear having carriage withdrawable for isolation with isolation by horizontal withdrawal truck type
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Patch Boards (AREA)
Abstract
The invention belongs to the technical field of switch cabinets, and discloses a switch cabinet valve device and a switch cabinet thereof.
Description
Technical Field
The invention belongs to the technical field of switch cabinets, and particularly relates to a switch cabinet valve device and a switch cabinet thereof.
Background
The baffle plate (valve) of the static contact box is arranged at the rear side of the handcart room, the outside of the static contact is sleeved with an insulating sleeve for insulation protection, and the valve for shielding the upper and lower static contact boxes is automatically opened in the process that the handcart moves from the disconnection position/test position to the working position; when the handcart moves in the opposite direction, the valve is automatically closed until the handcart moves to the opening position/test position to completely shield the fixed contact box, effective isolation is formed between the compartments, dust, moisture or other pollutants possibly enter the equipment if the clearance between the valve and the fixed contact is not shielded, the pollutants possibly cause equipment faults, the equipment performance and the reliability are affected, meanwhile, a gap between the breaker contacts is formed when the contacts are opened or closed in operation, when the breaker contacts move towards the fixed contacts through sliding of a sliding rail below the handcart, the valve can be stored under the action of a transmission mechanism and is used for the non-collision passing of the breaker contacts, and whether the valve is completely opened or not is difficult to observe after the handcart is pushed in due to the narrow valve area space inside the switch cabinet.
The chinese patent publication No. CN102856831a discloses a high-voltage switch cabinet valve mechanism, which comprises a valve and is characterized in that: the shutter is a shutter door which is vertically movably and oppositely opened and comprises an upper shutter door plate and a lower shutter door plate; the two sides of the rolling door are provided with guide rails for ensuring synchronous movement and accuracy of the two sides; the guide rail is in a curve shape protruding outwards from the door slightly; the device also comprises a transmission mechanism for transmitting the rolling door switch; the transmission mechanism comprises a soft steel wire, a fixed pulley and a sliding block; one end of the soft steel wire is fixedly connected with the end part of the middle position of the rolling door, and then is respectively led out from the end part of the guide rail along the guide rail, and the other end of the soft steel wire, which bypasses the fixed pulleys, is fixedly connected with the sliding block. The high-voltage switch cabinet valve mechanism provided by the invention is safe, reliable, flexible in operation and convenient to use.
However, the above scheme has the following disadvantages: the shutter mechanism drives the upper roller shutter door and the lower roller shutter door to lift through the transmission mechanism so as to adjust the shielding state of the static contact end, but the sealing performance of the roller shutter door does not have good sealing performance so as to prevent invasion of dust, moisture and other environmental substances, so that larger delay exists in the opening and closing process, and further collision damage between a breaker contact and the tail end of the roller shutter door, which delays the lifting, can be caused; meanwhile, the shutter of the switch cabinet needs to be provided with a reliable safety mechanism so as to ensure that the shutter can be rapidly closed when needed, the shutter door cannot provide safety performance and response speed matched with the safety requirement of the switch cabinet, and the shutter device of the switch cabinet is further improved so that the shutter can improve the sealing performance of the shutter to the side of the static contact on the basis of rapid closing, and meanwhile, when the shutter cannot be lifted due to the failure of a transmission mechanism, the damage caused by rigid collision between a contact of a circuit breaker and the shutter can be avoided.
Disclosure of Invention
The invention aims to provide a switch cabinet valve device and a switch cabinet thereof, which are used for solving the problems in the background technology.
In order to achieve the above purpose, the present invention provides the following technical solutions:
the valve device of the switch cabinet comprises a valve plate arranged on the side of a fixed contact in the switch cabinet and a breaker contact matched with the opposite side of the fixed contact, wherein a baffle is sleeved on the outer annular wall of the outer port of an insulating sleeve on the fixed contact and extends to be fixed on the inner wall of the switch cabinet;
the side wall of the valve plate is provided with an opening capable of accommodating the passing of a breaker contact, a flexible isolation plate can be arranged in the opening in a turnover manner, the top of the valve plate is provided with a connecting spring plate, a traction section is arranged on the connecting spring plate and used for temporarily fixing the flexible isolation plate, a reset assembly used for controlling the connecting spring plate to reset after moving outwards is arranged on the partition plate, the side of the breaker contact is provided with a transmission mechanism, and the transmission mechanism is used for overcoming the acting force of the reset assembly when the breaker contact moves towards the side of the fixed contact and driving the movable door plate to move outwards for storage through the connecting spring plate;
when the transmission mechanism fails and the movable door plate cannot be moved outwards to be stored, the traction section is separated from the connecting elastic sheet, so that the breaker contact pushes the flexible isolation plate to turn downwards in a flexible contact mode, and meanwhile, the flexible isolation plate prevents the breaker contact from being contacted with the static contact in a flexible contact mode.
Preferably, the inclined plane ring frame lateral wall is the lower inclined plane with valve board inclined plane portion matched with, the upper and lower portion symmetry of inclined plane ring frame lateral wall is equipped with the perforation, be provided with main spring loop bar and spacing slip to in the perforation on the cubical switchboard inside wall, be equipped with on the inboard roof of opening and run through to the haulage way that links up the shell fragment lateral wall, and the traction section runs through the haulage way and carries out temporary fixation.
Preferably, when the transmission mechanism breaks down and leads to the movable door plate unable to move outwards to accomodate, when the flexible isolation board receives the horizontal thrust of circuit breaker contact, the traction section receives the pulling force of flexible isolation board and breaks, and then makes the flexible isolation board can turn down.
Preferably, the connecting elastic piece is provided with a through hole on the side wall and is communicated with the traction channel part, the through hole is aligned with the perforation, a cutting piece is arranged at the insertion end of the main spring sleeve rod in the perforation on the upper part of the inclined plane ring frame, a corrugated section capable of shrinking longitudinally is arranged between the flexible isolation plate and the traction section, and when the transmission mechanism breaks down and leads the movable door plate to be incapable of being moved outwards and stored, the breaker contact indirectly enables the movable door plate to push the inclined plane ring frame to move inwards through the flexible isolation plate, so that the cutting piece is inserted into the traction channel part to cut off the traction section.
Preferably, an alarm connected with the switch cabinet controller part is arranged on the outer side of the switch cabinet, a pressure sensor is embedded in the opposite surface of the flexible isolation plate and the breaker contact, the pressure sensor is electrically connected with the switch cabinet controller part, and when the breaker contact extrudes the flexible isolation plate, the pressure sensor transmits a pressure signal to the switch cabinet controller part and drives the alarm to give an alarm;
the opposite surface of the flexible isolation plate and the breaker contact is a flexible silicon rubber layer, reinforcing ribs are embedded and arranged on the back of the flexible silicon rubber layer, and when the flexible isolation plate is pushed by the breaker contact to turn down completely, the upper surface of the flexible isolation plate is of an upward slope structure relative to the breaker contact and is used for preventing the breaker contact from being contacted with the static contact in a matched manner.
Preferably, a gap part is arranged between the outer wall of the insulating sleeve on the baffle and the fixed contact and is used for the matching insertion of the inclined plane ring frame, a groove part is arranged on the outer side wall of the baffle, the reset component comprises an auxiliary spring sleeve rod arranged in the groove part, a lifting plate is arranged on the auxiliary spring sleeve rod in a sliding sleeve mode, the auxiliary spring sleeve rod always generates spring thrust towards the corresponding fixed contact side to the lifting plate, a movable opening is arranged on the bottom end face of the lifting plate, an elliptical ring spring piece is fixedly arranged on one side in the movable opening, and a friction damping part is arranged on the bottom end face of the elliptical ring spring piece.
Preferably, the transmission mechanism comprises a bevel board sleeved at the upper connecting rod end of the contact of the circuit breaker, the upper bevel of the bevel board is matched with the bevel ring frame bevel, the bevel board is connected with the pushing plate through a torsion spring shaft, the free end of the pushing plate is connected with the pushing spring, the tail end of the pushing spring is provided with a pre-rolling part, the side part of the partition board is provided with a jacking block and coincides with the movement track of the elliptical ring spring, the pre-rolling part is temporarily fixed with the friction damping part under the guidance of the connecting spring in the matched connection process of the contact of the circuit breaker and the static contact, the acting force of the auxiliary spring loop rod is overcome, the movable door plate is indirectly driven to move outwards for storage, the friction damping part is separated from the pre-rolling part after the jacking block is pressed against the elliptical ring spring, and the pushing spring is rolled under the guidance of the pre-rolling part.
Preferably, an extrusion push plate is arranged between the upper and lower adjacent inclined plates, an air storage bag body is arranged between the upper and lower fixed contact groups on the side wall of the partition plate, the extrusion end of the extrusion push plate is fixedly connected with the air storage bag body, the bottom end face of the inner side of the groove part is provided with a corrugated lifting pipe and is fixedly connected with the bottom end face of the lifting plate, the exhaust side of the air storage bag body is provided with an air duct and is connected with the air inlet end of the corrugated lifting pipe, and when partial slippage occurs between the pre-rolling part and the friction damping part to cause incomplete storage of the valve plate, air discharged into the corrugated lifting pipe through the air duct pushes the lifting plate to move upwards, so that the valve plate is indirectly driven to be completely stored.
A switch cabinet, which comprises the switch cabinet valve device.
Compared with the prior art, the invention has the beneficial effects that:
1. the inner side wall of the inclined plane ring frame is sleeved on the outer side of the fixed contact insulating sleeve for dustproof shielding, the flexible isolation plate is arranged to avoid rigid collision of the breaker contact, when the flexible isolation plate is extruded by the breaker contact, the pressure sensor transmits a pressure signal to the controller part of the switch cabinet and drives the alarm to give an alarm when the flexible isolation plate is extruded by the breaker contact, so that the alarm function is achieved when the movable door plate is in fault, the sealing performance of the movable door plate to the side of the fixed contact is improved, and the damage caused by rigid collision of the breaker contact and the movable door plate can be avoided when the transmission mechanism is in fault and the breaker contact cannot lift;
2. the setting of auxiliary spring loop bar can be when the lifter plate is pushed to the top and loses the quick decline when holding power to play the purpose to the quick closed of static contact, and breaker contact and static contact cooperation are connected the in-process, the pre-roll portion is fixed with friction damping portion is interim under the guide of linking the shell fragment, overcome auxiliary spring loop bar and indirectly drive the live door plant simultaneously and move outward and accomodate, wait that the kicking block is pressed with oval ring shell fragment top pressure and is pressed, make friction damping portion and pre-roll portion separation after oval ring shell fragment takes place extrusion deformation, push the shell fragment and roll under the guide of pre-roll portion, when the partial slip of taking place between pre-roll portion and friction damping portion leads to the valve board not to accomodate completely, push up the lifter plate through the air of air duct row income ripple riser, thereby indirectly drive the live door plant and accomodate completely, possess quick closed basis.
Drawings
FIG. 1 is a schematic view in partial cross-section of a stationary contact and breaker contact mating area of the present invention;
FIG. 2 is a partial schematic view of the upper stationary contact area of FIG. 1;
FIG. 3 is a schematic diagram of the flexible separator plate of FIG. 2 in a flipped state upon failure of the transmission mechanism;
fig. 4 is a schematic diagram of the circuit breaker contact of fig. 3 in a fully flipped state with the flexible separator plate;
FIG. 5 is a schematic view showing the outward movement and lifting state of the shutter plate of FIG. 2;
FIG. 6 is a schematic view of the elliptical ring spring plate of FIG. 5 in a state of not being deformed by extrusion;
FIG. 7 is a schematic diagram illustrating deformation of the elliptical ring spring plate of FIG. 5 after being pressed by a top block;
FIG. 8 is a schematic diagram of a cross-sectional view of a hinge plate, a connecting spring, a lifting plate, and a partition plate according to the present invention;
FIG. 9 is a schematic diagram of a semi-sectioned structure of a beveled ring frame for the void of FIG. 8;
fig. 10 is a schematic diagram of a semi-sectional structure of a flexible separator plate for use within the opening of fig. 8.
In the figure: 1. a switch cabinet; 2. a stationary contact; 3. a shutter plate; 4. a breaker contact; 5. a partition plate; 6. an inclined plane ring frame; 7. a flexible separator; 8. a connecting spring plate; 9. a traction section; 10. perforating; 11. a main spring loop bar; 12. a traction channel; 13. a through hole; 14. cutting off the sheet; 15. a corrugated section; 16. an alarm; 17. a pressure sensor; 18. a void portion; 19. a groove portion; 20. a secondary spring loop bar; 21. a lifting plate; 22. a movable opening; 23. an elliptical ring spring plate; 24. a friction damping portion; 25. a bevel panel; 26. a torsion spring shaft; 27. a pushing plate; 28. pushing the spring plate; 29. a pre-winding part; 30. a top block; 31. a gas storage bag body; 32. a corrugated lifting pipe; 33. an air duct; 101. an opening; 701. a flexible silicone rubber layer; 702. reinforcing ribs; 401. the push plate is extruded.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.
Referring to fig. 1-10, the present invention provides a technical solution:
embodiment one:
the valve device of the switch cabinet comprises a valve plate 3 used for the side of a fixed contact 2 in the switch cabinet 1 and a breaker contact 4 matched with the opposite side of the fixed contact 2, wherein a baffle 5 is sleeved on the outer annular wall of the outer port of an insulating sleeve on the fixed contact 2 and extends to be fixed on the inner wall of the switch cabinet 1, an inclined annular frame 6 is arranged on the outer side of the outer port of the insulating sleeve on the fixed contact 2 in a horizontally resetting manner, the inner side wall of the inclined annular frame 6 is sleeved on the outer side of the insulating sleeve on the fixed contact 2 for dustproof shielding, and the inner side wall of the valve plate 3 is provided with an inclined surface part matched with the inclined annular frame 6;
the flexible isolation plate 7 is arranged in the opening 101 in a turnover manner, rigid collision of the breaker contact 4 is avoided, the connecting elastic piece 8 is arranged at the top of the valve plate 3, the connecting elastic piece 8 is made of steel sheets and can be bent and deformed when being subjected to lateral pressure, the connecting elastic piece 8 is provided with a traction section 9 and is used for temporarily fixing the flexible isolation plate 7, the extending end of the traction section 9 is fixed in an anti-falling manner through a puncture piece, the puncture piece can be represented by a needle plate with a tip, the traction section 9 can be temporarily fixed, the traction section 9 is formed by flexible rubber, plastic or woven cotton ropes, the material of the traction section 9 can be cut off by blade sharp objects, a reset component is arranged on the partition plate 5 and is used for resetting movement after the connecting elastic piece 8 is moved outwards, and a transmission mechanism is arranged on the side of the breaker contact 4 and is used for overcoming the acting force of the reset component when the breaker contact 4 is matched towards the fixed contact 2 and driving the movable elastic piece 3 to be stored after the movable elastic piece 8 is moved outwards;
when the transmission mechanism fails and the movable door plate 3 cannot be moved outwards for storage, the traction section 9 is separated from the engagement spring plate 8, so that the breaker contact 4 pushes the flexible isolation plate 7 to turn downwards in a flexible contact mode, and meanwhile, the flexible isolation plate 7 prevents the breaker contact 4 from being contacted with the fixed contact 2 in a matching mode in a flexible contact mode.
Embodiment two:
on the basis of the first embodiment, further description is made that the outer side wall of the inclined ring frame 6 is a lower inclined surface matched with the inclined surface part of the valve plate 3, the upper part and the lower part of the side wall of the inclined ring frame 6 are symmetrically provided with perforations 10, the inner side wall of the switch cabinet 1 is provided with a main spring sleeve rod 11 and is limited to slide into the perforations 10, the main spring sleeve rod 11 generates spring thrust towards the outer side of the inclined ring frame 6, the top wall of the inner side of the opening 101 is provided with a traction channel 12 penetrating to the outer side wall of the connecting elastic sheet 8, and the traction section 9 penetrates through the traction channel 12 and is fixed;
when the transmission mechanism breaks down and leads to the movable door plate 3 unable to move outwards to accomodate, when flexible division board 7 receives breaker contact 4 horizontal pushing force, traction section 9 receives flexible division board 7's pulling force to break, and then makes flexible division board 7 turn down, the autosegregation of flexible division board 7 and traction section 9 of being convenient for.
Embodiment III:
on the basis of the second embodiment, a through hole 13 is formed in the side wall of the connecting elastic sheet 8 and is communicated with the traction channel 12, the through hole 13 is aligned with the perforation 10, a cutting piece 14 is arranged at the insertion end of the main spring sleeve rod 11 in the perforation 10 at the upper part of the inclined plane ring frame 6, a longitudinally contractible corrugated section 15 is arranged between the flexible isolation plate 7 and the traction section 9, the flexible isolation plate 7 can be deformed when being extruded by the circuit breaker contact 4 due to the arrangement of the corrugated section 15, the circuit breaker contact 4 is prevented from being extruded by the flexible isolation plate 7 too much, and when the flexible isolation plate 7 indirectly enables the movable door plate 3 to push the inclined plane ring frame 6 to move inwards due to the failure of a transmission mechanism, so that the cutting piece 14 is inserted into the traction channel 12 to cut off the traction section 9.
Embodiment four:
on the basis of the third embodiment, an alarm 16 connected with a switch cabinet controller is arranged on the outer side of the switch cabinet 1, the alarm 16 adopts an LED-1101J rotary audible and visual warning lamp, a pressure sensor 17 is embedded in the opposite surface of the flexible isolation plate 7 and the breaker contact 4, and the pressure sensor 17 is electrically connected with the switch cabinet 1 controller;
the pressure sensor 17 is based on the principle of the piezoelectric effect, and the piezoelectric material generates charge accumulation or potential difference under the action of force or pressure, and when external pressure is applied to the sensor, the charge generation or potential difference change is caused, and the change can be measured through a circuit and converted into a voltage or current signal;
when the breaker contact 4 presses the flexible isolation plate 7, the pressure sensor 17 transmits a pressure signal to the controller part of the switch cabinet 1 and drives the alarm 16 to give an alarm, so that the alarm when the movable door plate 3 fails is given;
the opposite surface of the flexible isolation plate 7 and the breaker contact 4 is a flexible silicone rubber layer 701, the back of the flexible silicone rubber layer 701 is embedded with a reinforcing rib 702, the reinforcing rib 702 adopts any one of carbon fiber and metal wire, the reinforcing rib 702 is arranged to improve the compressive strength of the flexible isolation plate 7, meanwhile, the reinforcing rib 702 adopts a wave line track which is not shown to be arranged, when the flexible isolation plate 7 is deformed, the reinforcing rib 702 has a deformation length, the flexible isolation plate 7 is ensured to be in flexible contact with the breaker contact 4, and meanwhile, the flexible isolation plate 7 has a certain structural toughness, and when the flexible isolation plate 7 is pushed by the breaker contact 4 to be completely turned down, the upper surface of the flexible isolation plate is in an upward slope structure relative to the breaker contact 4 and is used for preventing the breaker contact 4 from being in matched contact with the static contact 2.
Fifth embodiment:
on the basis of the first embodiment, a gap part 18 is formed between the baffle plate 5 and the outer wall of the insulating sleeve on the fixed contact 2 and is used for the matching insertion of the inclined plane ring frame 6, a rubber ring which is not shown is embedded between the inclined plane ring frame 6 and the gap part 18 for shielding, so that the purpose of dust prevention is achieved, meanwhile, a rubber ring which is not shown is also embedded between the inclined plane ring frame 6 and the outer wall of the insulating sleeve on the fixed contact 2 for shielding, and meanwhile, sealing oil is injected into two sides of the rubber ring or an oil seal structure in the prior art, so that the horizontal movement of the inclined plane ring frame 6 is not influenced while the shielding effect on external dust impurities is achieved;
the voids may also be masked in the following existing manner:
and (3) sealing a piston: the piston seal is an annular sealing element, typically made of rubber, polyurethane or similar elastic material, located at the periphery of the slider and in close contact with the walls of the perforation, seals the void by its own elasticity when the slider is moving in the perforation, adapts to smaller voids and provides a good seal under different dynamic movement conditions.
Sealing a piston ring: the piston ring seal is a metal annular sealing element which is made of spring steel or similar metal materials and has certain elasticity, and the piston ring seal is fixed on the sliding part and seals the gap through the elasticity;
the outer side wall of the partition plate 5 is provided with a groove part 19, the reset assembly comprises a secondary spring sleeve rod 20 arranged in the groove part 19, the secondary spring sleeve rod 20 is sleeved with a lifting plate 21 in a sliding way, the secondary spring sleeve rod 20 always generates spring thrust towards the corresponding fixed contact 2 side to the lifting plate 21, the secondary spring sleeve rod 20 can rapidly descend when the supporting force is lost after the lifting plate 21 is pushed to the top, the purpose of rapidly closing the fixed contact 2 is achieved, the bottom end surface of the lifting plate 21 is provided with a movable opening 22, an elliptical ring spring piece 23 is fixedly arranged on one side in the movable opening 22, the bottom end surface of the elliptical ring spring piece 23 is provided with a friction damping part 24, the friction damping part 24 is made of rubber materials with rough surfaces or damping lines, and a relatively large friction force is provided for a contact part to prevent the relative sliding;
the transmission mechanism comprises a bevel board 25 sleeved at the upper connecting rod end of the breaker contact 4, the upper inclined surface of the bevel board 25 is matched with the inclined surface of the inclined surface ring frame 6, the bevel board 25 is connected with a pushing plate 27 through a torsion spring shaft 26, the torsion spring shaft 26 is sleeved with a torsion spring on a double-lug shaft bracket, the bottom end of the torsion spring is fixed on the double-lug shaft bracket, the other end of the torsion spring is fixedly connected with the pushing plate 27, the torsion spring shaft 26 can generate a closing force towards the inner breaker contact 4 on the pushing plate 27, the tail end of the pushing plate 27 can conveniently face the side part of the connecting spring piece 8 when in an initial position, the free end of the pushing plate 27 is connected with the pushing spring piece 28, the tail end of the pushing spring piece 28 is provided with a pre-winding part 29, and the pre-winding part 29 is arranged so that the pushing part 29 is not fixed by external friction resistance, the push spring piece 28 is driven to be partially rolled along with the movement of the breaker contact 4, the side part of the partition board 5 is provided with a top block 30 and coincides with the movement track of the elliptical ring spring piece 23, the pre-rolling part 29 is temporarily fixed with the friction damping part 24 under the guidance of the connecting spring piece 8 in the process of matching and connecting the breaker contact 4 with the fixed contact 2, meanwhile, the acting force of the auxiliary spring sleeve rod 20 is overcome, the movable door plate 3 is indirectly driven to move outwards for storage, when the top block 30 is in contact with the elliptical ring spring piece 23 in a pressing mode, the elliptical ring spring piece 23 is extruded and deformed, the friction damping part 24 is separated from the pre-rolling part 29, and the push spring piece 28 is rolled under the guidance of the pre-rolling part 29;
an extrusion pushing plate 401 is arranged between the upper inclined plate 25 and the lower inclined plate 25, an air storage bag body 31 is arranged between the upper fixed contact 2 and the lower fixed contact 2 on the side wall of the partition plate 5, the extrusion end of the extrusion pushing plate 401 is fixedly connected with the air storage bag body 31, the bottom end face of the inner side of the groove part 19 is provided with a corrugated lifting pipe 32 and is fixedly connected with the bottom end face of the lifting plate 21, the air exhaust side of the air storage bag body 31 is provided with an air duct 33 and is connected with the air inlet end of the corrugated lifting pipe 32, and when partial sliding occurs between the pre-rolling part 29 and the friction damping part 24 to cause incomplete storage of the movable door plate 3, air discharged into the corrugated lifting pipe 32 through the air duct 33 pushes the lifting plate 21 to move upwards, so that the movable door plate 3 is indirectly driven to be completely stored.
The working principle is as follows: the inner side wall of the inclined plane ring frame 6 is sleeved on the outer side of the insulating sleeve of the fixed contact 2 for dust prevention and shielding, the rigid collision of the breaker contact 4 is avoided by the arrangement of the flexible isolation plate 7, when the movable door plate 3 cannot be moved outwards and contained due to the failure of the transmission mechanism, the breaker contact 4 indirectly enables the movable door plate 3 to push the inclined plane ring frame 6 to move inwards through the flexible isolation plate 7, so that the cut-off piece 14 is inserted into the traction channel 12 to conduct cutting-off treatment on the traction section 9, and when the flexible isolation plate 7 is pushed by the breaker contact 4 to turn down completely, the upper surface of the flexible isolation plate 7 is of an upward slope structure relative to the breaker contact 4 and is used for preventing the breaker contact 4 from being contacted with the fixed contact 2 in a matched manner;
the corrugated section 15 is arranged to deform the flexible isolation board 7 when the flexible isolation board 4 is extruded, so that the flexible isolation board 7 is prevented from being extruded by the flexible isolation board 4 too much, when the flexible isolation board 7 is extruded by the flexible isolation board 4, the pressure sensor 17 transmits a pressure signal to the controller part of the switch cabinet 1 and drives the alarm 16 to give out an alarm, and an alarm function when the movable door panel 3 fails is achieved;
the setting of auxiliary spring loop bar 20 can be when the lifter plate 21 is passed to the top and loses the rapid decline when holding power to play the purpose of the quick closed of static contact 2, and breaker contact 4 and static contact 2 cooperation in-process of being connected, pre-roll portion 29 is fixed with friction damping portion 24 temporarily under the guide of linking shell fragment 8, overcome auxiliary spring loop bar 20 and indirectly drive movable door board 3 simultaneously and move outward and accomodate, wait when kicking block 30 and elliptical ring shell fragment 23 top press contact, make friction damping portion 24 and pre-roll portion 29 separation after elliptical ring shell fragment 23 takes place extrusion deformation, pass shell fragment 28 and roll up under the guide of pre-roll portion 29, when partial slip takes place between pre-roll portion 29 and friction damping portion 24 and lead to movable door board 3 not to fully accomodate, air through air duct 33 row income bellows lifter plate 32 promotes lifter plate 21 to move up, thereby indirectly drive movable door board 3 and take up completely, can't avoid the rigidity to lead to the damage to the movable door board 3 to the collision when the movable door board 3 takes place when the drive mechanism to take place to break down when the fault and lead to movable door board 3.
The embodiment provides a switch cabinet, which comprises the switch cabinet valve device.
Finally, it should be noted that: the foregoing description is only illustrative of the preferred embodiments of the present invention, and although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements or changes may be made without departing from the spirit and principles of the present invention.
Claims (8)
1. The utility model provides a cubical switchboard valve device, includes the valve board that sets up in the interior static contact side of cubical switchboard to and the supporting circuit breaker contact of side opposite to the static contact, its characterized in that: the outer annular wall of the outer port of the insulating sleeve on the fixed contact is sleeved with a baffle plate and extends to be fixed to the inner wall of the switch cabinet, an inclined annular frame is arranged on the outer side of the outer port of the insulating sleeve on the fixed contact in a horizontally resetting motion mode, the inner side wall of the inclined annular frame is sleeved on the outer side of the insulating sleeve on the fixed contact for dust prevention shielding, and the inner side wall of the valve plate is provided with an inclined surface part matched with the inclined annular frame;
the side wall of the valve plate is provided with an opening capable of accommodating the passing of a breaker contact, a flexible isolation plate can be arranged in the opening in a turnover manner, the top of the valve plate is provided with a connecting spring plate, a traction section is arranged on the connecting spring plate and used for temporarily fixing the flexible isolation plate, a reset assembly used for controlling the connecting spring plate to reset after moving outwards is arranged on the partition plate, the side of the breaker contact is provided with a transmission mechanism, and the transmission mechanism is used for overcoming the acting force of the reset assembly when the breaker contact moves towards the side of the fixed contact and driving the movable door plate to move outwards for storage through the connecting spring plate;
when the transmission mechanism fails and the movable door plate cannot be moved outwards to be stored, the flexible isolation plate is subjected to horizontal pushing force of the breaker contact, the traction section is broken by the pulling force of the flexible isolation plate, the breaker contact is pushed to turn down in a flexible contact mode after the traction section is separated from the connecting elastic sheet, and meanwhile the flexible isolation plate prevents the breaker contact from being matched with the static contact in a flexible contact mode.
2. The switchgear valve arrangement according to claim 1, characterized in that: the inclined plane ring frame lateral wall is the lower inclined plane with valve board inclined plane portion matched with, the upper and lower portion symmetry of inclined plane ring frame lateral wall is equipped with the perforation, be provided with main spring loop bar on the cubical switchboard inside wall and spacing slip to in the perforation, be equipped with on the opening inboard roof and run through to the haulage way that links up the shell fragment lateral wall, and the traction section runs through the haulage way and fixes.
3. The switchgear valve arrangement according to claim 2, characterized in that: be equipped with the through-hole on the linking shell fragment lateral wall and be linked together with the haulage way part, and the through-hole aligns the setting with the perforation, main spring loop bar inserts the end and is provided with the cut-off piece in the perforation of inclined plane ring frame upper portion, but be provided with longitudinal contraction's ripple section between flexible division board and the traction section, when drive mechanism breaks down and leads to the movable door board unable external movement to accomodate, the circuit breaker contact makes the movable door board promote the inclined plane ring frame through flexible division board indirectionally to make the cut-off piece insert to the haulage way part and cut off the processing to the traction section.
4. A switchgear shutter arrangement as claimed in claim 3, wherein: the flexible isolating plate is arranged on the outer side of the switch cabinet, the pressure sensor is embedded in the opposite surface of the flexible isolating plate, which is opposite to the circuit breaker contact, and is electrically connected with the switch cabinet controller;
the opposite surface of the flexible isolation plate and the breaker contact is a flexible silicon rubber layer, reinforcing ribs are embedded and arranged on the back of the flexible silicon rubber layer, and when the flexible isolation plate is pushed by the breaker contact to turn down completely, the upper surface of the flexible isolation plate is of an upward slope structure relative to the breaker contact and is used for preventing the breaker contact from being contacted with the static contact in a matched manner.
5. The switchgear valve arrangement according to claim 1, characterized in that: the baffle is equipped with the recess portion on the baffle lateral wall with insulating cover outer wall is used for the cooperation of inclined plane ring frame to insert between baffle and the static contact, be equipped with the recess portion on the baffle lateral wall, reset assembly is equipped with the lifter plate including setting up the vice spring loop bar in the recess portion on the vice spring loop bar, and vice spring loop bar produces the spring thrust towards corresponding static contact side all the time to the lifter plate, be equipped with movable mouth on the lifter plate bottom end face, the fixed elliptical ring shell fragment that is provided with of movable mouth inboard, just elliptical ring shell fragment bottom end face is provided with friction damping portion.
6. The switchgear valve arrangement according to claim 5, characterized in that: the transmission mechanism comprises a bevel board sleeved at the upper connecting rod end of the contact of the circuit breaker, the upper bevel of the bevel board is matched with the bevel ring frame bevel, the bevel board is connected with a pushing plate through a torsion spring shaft, the free end of the pushing plate is connected with a pushing spring, the tail end of the pushing spring is provided with a pre-rolling part, the side part of the partition board is provided with a jacking block and coincides with the movement track of the elliptical ring spring, the pre-rolling part is temporarily fixed with the friction damping part under the guidance of the connecting spring in the matched connection process of the contact of the circuit breaker and the static contact, the acting force of the auxiliary spring loop rod is overcome, the movable door plate is indirectly driven to move outwards for storage, the friction damping part is separated from the pre-rolling part after the elliptical ring spring is subjected to extrusion deformation when the jacking block is in contact with the elliptical ring spring, and the pushing spring is rolled under the guidance of the pre-rolling part.
7. The switchgear valve arrangement according to claim 6, characterized in that: an extrusion push plate is arranged between the upper and lower adjacent inclined plates, an air storage bag body is arranged between the upper and lower fixed contact groups on the side wall of the partition plate, the extrusion end of the extrusion push plate is fixedly connected with the air storage bag body, the bottom end face of the inner side of the groove part is provided with a corrugated lifting pipe and is fixedly connected with the bottom end face of the lifting plate, the exhaust side of the air storage bag body is provided with an air duct and is connected with the air inlet end of the corrugated lifting pipe, and when partial sliding occurs between the pre-rolling part and the friction damping part to cause incomplete storage of the valve plate, the air discharged into the corrugated lifting pipe through the air duct pushes the lifting plate to move upwards, so that the valve plate is indirectly driven to be completely stored.
8. A switch cabinet, characterized in that: the switchgear comprising a switchgear shutter arrangement according to any of the preceding claims 1-7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311359405.XA CN117394189B (en) | 2023-10-20 | 2023-10-20 | Switch cabinet valve device and switch cabinet thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311359405.XA CN117394189B (en) | 2023-10-20 | 2023-10-20 | Switch cabinet valve device and switch cabinet thereof |
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| CN117394189A CN117394189A (en) | 2024-01-12 |
| CN117394189B true CN117394189B (en) | 2024-03-22 |
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| CN202311359405.XA Active CN117394189B (en) | 2023-10-20 | 2023-10-20 | Switch cabinet valve device and switch cabinet thereof |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN117394189A (en) | 2024-01-12 |
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