24KV SF6 upper isolation circuit breaker ring main unit

Abstract

The invention discloses a 24KV SF6 upper isolation circuit breaker ring main unit which comprises a mechanism compartment, a switch air chamber, a cable compartment and a butt joint device. The mechanism compartment, the switch air chamber and the cable compartment are arranged in a separated and combined mode, equipment arranged in the ring main unit is arranged in order, the problem of disorder is avoided, live detection and interlocking movement of the ring main unit can be achieved in cooperation with the displayer, the fault indicator, the passive electromagnetic lock and the isolation mechanism, the use safety of the ring main unit is improved, and the service life of the ring main unit is prolonged. And the butt joint device is arranged, namely, the butt joint device is matched with the first clamping piece and the second clamping piece, so that auxiliary butt joint locking matching can be carried out when two ring main units carry out expansion butt joint activities, the expansion combinability of the ring main units is enhanced, and the ring main units are more flexible and reliable to use.

Description

Technical Field

[0001] The invention relates to the technical field of circuit breaker ring network cabinets, in particular to a 24KV SF6 upper isolation circuit breaker ring network cabinet. Background Art

[0002] Circuit breakers are mainly used for current switching on industrial equipment, and will automatically short-circuit when a current short circuit or fault occurs in the industrial equipment to ensure the safety of the industrial equipment. The circuit breaker cabinet is a switch cabinet used to install circuit breakers. It is mainly used for multiple circuit breakers to be installed in the switch cabinet at the same time, which facilitates the concentration and use of different industrial equipment, so that the circuit breakers can be better managed.

[0003] When the existing circuit breaker ring network cabinet is in use, the internal isolation and division of the area is low, and the problem of cluttered equipment inside the ring network cabinet is more likely to occur. At the same time, when the circuit breaker ring network cabinet needs to be expanded and connected, its external part lacks a docking structure. As a result, it is difficult to achieve expansion and docking between one ring network cabinet and another, making its use flexibility less efficient.

[0004] To this end, a circuit breaker ring main unit is proposed to meet the requirements of neat isolation setting of internal space, reduce equipment clutter and facilitate subsequent expansion of docking combinations. Summary of the invention

[0005] The object of the present invention is to provide a 24KV SF6 upper isolation circuit breaker ring network cabinet to solve the problems raised in the above background technology.

[0006] In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a 24KV SF6 upper isolation circuit breaker ring network cabinet, comprising a mechanism compartment, a switch gas chamber, a cable compartment and a docking device, a switch gas chamber is arranged at the rear end of the mechanism compartment, the lower ends of the mechanism compartment and the switch gas chamber are connected to the top of the cable compartment, and a docking device is arranged at the bottom of the cable compartment, the mechanism compartment comprises a first cabinet body, a first cabinet door, a display, a fault indicator, a pressure gauge, a passive electromagnetic lock, an isolation mechanism and a circuit breaker, a first cabinet door is hinged at the front end of the first cabinet body, a display and a fault indicator are respectively arranged at the upper end of the front side of the first cabinet door, a pressure gauge is arranged at the upper end of the left front side of the first cabinet door, a passive electromagnetic lock is installed in the middle of the first cabinet door, an isolation mechanism is arranged at the upper end of the first cabinet body, a circuit breaker is arranged at the lower end of the first cabinet body, and the display is electrically connected to the isolation mechanism.

[0007] Preferably, the switch air chamber includes a second cabinet, an extension connector and a circuit breaker switch, the second cabinet is connected to the rear side of the first cabinet, an extension connector is provided at the upper end of the second cabinet, a circuit breaker switch is provided at the lower end of the second cabinet, and the circuit breaker switch is electrically connected to the circuit breaker.

[0008] Preferably, the cable compartment includes a third cabinet, a second cabinet door and an outlet sleeve, the third cabinet is connected to the lower ends of the first cabinet and the second cabinet, and the second cabinet door is hinged on the front side of the third cabinet, the outlet sleeve is installed inside the third cabinet, and the outlet sleeve extends into the second cabinet.

[0009] Preferably, the docking device includes a box body, a motor, a driving wheel, a toothed belt, a driven wheel, a connecting shaft, a first clamp, a second clamp, a connecting pipe, a bellows, a fan and a heat absorption pipe. The box body is installed at the lower end of the third cabinet, and a motor is installed on the left side of the box body. The front output end of the motor is connected to the driving wheel, and the driving wheel is externally connected to the toothed belt. The right side of the toothed belt is connected to the driven wheel, and connecting shafts are inserted into the upper and lower sides of the toothed belt. The front sides of the connecting shafts on both sides are respectively connected to the first clamp and the second clamp, and the first clamp and the second clamp are respectively arranged on the left and right sides of the upper end of the box body. One side of the first clamp and the second clamp are both connected to the connecting pipe, and the upper end of the connecting pipe is connected to the bottom of the bellows. The bellows bolts are fastened to the rear side of the third cabinet. A fan is installed inside the bellows, and the upper end of the bellows is docked with a heat absorption pipe.

[0010] Preferably, the first clamping member includes a first vertical plate, a first clamping strip, a sealing plate, a first air duct, a positioning strip and a locking structure, the first vertical plate is vertically inserted into the interior of the box, and the interior of the first vertical plate is connected to the outer end of the connecting shaft on one side, the first vertical plate is fixedly provided with a first clamping strip on the upper end, a sealing plate is provided inside the first clamping strip, the first air duct is inserted in the middle of the sealing plate, and the air inlet end of the first air duct is connected to the connecting pipe, a positioning strip is fixedly provided at the opening of the first clamping strip, and a locking structure is installed on one side of the air outlet end of the first air duct.

[0011] Preferably, the locking structure includes a fixed plate, a gear, a movable plate, a transmission groove, a pin shaft, a lock shaft, a rotating shaft, a worm wheel and a worm. The fixed plate is fastened to the outside of the first air duct, and one side of the lower end of the fixed plate is rotatably connected to a gear. The upper end of the gear is meshingly connected to a movable plate, and the movable plate is rotatably connected to the outside of the first air duct. A transmission groove is opened inside the movable plate, and a pin shaft is inserted into the transmission groove. One side of the pin shaft is fixed to the lock shaft, and a rotating shaft is connected to the middle part of the gear. The rotating shaft is connected to the worm wheel away from the gear. The lower end of the worm wheel is meshingly connected to the worm, and the worm is rotatably connected to one side of the first clamping strip.

[0012] Preferably, the second clamping member includes a second vertical plate, a second clamping strip, a second air duct, a filter, a positioning groove and a locking hole, the second vertical plate is vertically inserted into the interior of the box, and the middle portion of the second vertical plate is connected to the outer side of the connecting shaft, the upper end of the second vertical plate is fixed to the second clamping strip, the second air duct is inserted into the interior of the second clamping strip, and the air inlet end of the second air duct is connected to the connecting pipe, filters are installed on both sides of the middle portion of the second clamping strip, a positioning groove is provided on the outer side of the second clamping strip, and locking holes are equidistantly provided on one side of the interior of the second clamping strip.

[0013] Preferably, the connecting pipe, the fan and the heat absorption pipe are all symmetrically arranged along the left and right sides of the bellows, and the heat absorption pipes on both sides extend into the mechanism compartment and the switch air chamber respectively.

[0014] Preferably, the first clamp and the second clamp are respectively plugged into the left end and the right end of the rear side of the third cabinet, and the lateral lengths of the first clamp and the second clamp are inconsistent.

[0015] Preferably, the transmission groove, the pin shaft and the lock shaft are all arranged equidistantly along the annular track, and the pin shafts on each side are movably plugged with the sides inside the fixed plate.

[0016] Compared with the prior art, the present invention has the following beneficial effects: The present invention separates and combines the mechanism compartment, the switch air chamber and the cable compartment so that the equipment inside the ring network cabinet can be neatly installed to avoid the occurrence of clutter. In combination with the display, the fault indicator, the passive electromagnetic lock and the isolation mechanism, the live detection and interlocking activities of the ring network cabinet can be realized, the safety of the use of the ring network cabinet is improved, and the accidental electric shock phenomenon is reduced. In addition, a docking device is provided, that is, in combination with the first card component and the second card component, auxiliary docking and locking cooperation can be performed when the expansion docking activities are carried out at two ring network cabinets, thereby enhancing the expansion combination of the ring network cabinet and making the use of the ring network cabinet more flexible and reliable.

[0017] The arrangement of the driving wheel, the toothed belt, the driven wheel, the connecting shaft, the first clamp and the second clamp, that is, through the transmission of the driving wheel, the toothed belt and the driven wheel, the connecting shafts respectively installed on the upper and lower sides of the toothed belt can be realized in opposite or relative lateral directions. In this way, in coordination with the movement of the connecting shafts on both sides, the first clamp and the second clamp connected externally can be realized, thereby realizing convenient outward expansion combination docking use or convenient inward movement and collection activities.

[0018] The setting of the first clamp and the second clamp, that is, the second clamp can be inserted into the first clamp during expansion and docking, and when docking, the docking effect of the positioning groove and the positioning block is used to achieve accurate docking, so that the two ring network cabinets can realize preliminary expansion and combined docking activities.

[0019] The setting of the locking structure, that is, under the meshing transmission of the worm and the worm wheel, the rotation of the gear can be realized, so that the gear can mesh with the movable disk connected to the upper end of the transmission, so that when the movable disk rotates, the outward-moving pin shaft is driven through the transmission grooves opened at various places on the inner side. In this way, the lock shaft connected to the other side of the pin shaft and movably embedded in the fixed disk will move outward and be correspondingly inserted into the lock hole opened in the second card strip. In this way, the multi-directional plug-in locking combination of the second card strip and the first card strip can be conveniently realized, so that the expansion and docking state of the two ring network cabinets is stable and firm, and the occurrence of loose docking problems can be avoided.

[0020] The first air duct, the second air duct, the connecting pipe, the filter, the fan and the heat absorption pipe are set, that is, after completing the expansion and docking activities of the two ring network cabinets, the fans installed on both sides of the bellows can be driven to cooperate with the heat absorption pipes installed on both sides of the upper end of the bellows to realize the absorption and transmission of heat generated by the equipment inside the mechanism compartment and the switch air chamber, and with the transmission effect of the connecting pipe, the hot air can enter the first air duct and the second air duct respectively. In this way, the hot air will flow into the first card strip and the second card strip that are connected, and finally, it will be discharged along the filter installed in front and behind the middle of the second card strip. Thereby, the heat dissipation of the ring network cabinet can be assisted to make the equipment in a stable operating state, and the setting of the filter can prevent external dust from entering and ensure the stability of the heat dissipation state. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a left-side structural schematic diagram of the present invention; Figure 3 It is a schematic diagram of the internal structure of the present invention; Figure 4 It is a left-side internal structure schematic diagram of the present invention; Figure 5 It is a schematic diagram of the connection structure of two circuit breaker ring network cabinets of the present invention; Figure 6 This is a schematic diagram of the internal structure of the docking device of the present invention; Figure 7 It is a schematic diagram of the inward-retracted structure of the docking device of the present invention; Figure 8 This is a schematic diagram of the internal structure of the first clamp of the present invention; Fig. 9 It is a schematic diagram of the right side cross-sectional structure of the locking structure of the present invention; Fig.10 This is a schematic diagram of the internal structure of the second clamping member of the present invention from the front view.

[0022] In the figure: mechanism compartment-1, first cabinet-11, first cabinet door-12, display-13, fault indicator-14, barometer-15, passive electromagnetic lock-16, isolation mechanism-17, circuit breaker-18, switch air chamber-2, second cabinet-21, expansion connector-22, circuit breaker switch-23, cable compartment-3, third cabinet-31, second cabinet door-32, outlet bushing-33, docking device-4, box-41, motor-42, driving wheel-43, toothed belt-44, driven wheel-45, connecting shaft-46, first clamp-47, first vertical plate-471, first The clamping strip 472, the sealing plate 473, the first air duct 474, the positioning strip 475, the locking structure 476, the fixed plate 4761, the gear 4762, the movable plate 4763, the transmission groove 4764, the pin 4765, the locking shaft 4766, the rotating shaft 4767, the worm gear 4768, the worm 4769, the second clamping piece 48, the second vertical plate 481, the second clamping strip 482, the second air duct 483, the filter screen 484, the positioning groove 485, the locking hole 486, the connecting pipe 49, the bellows 410, the fan 411, and the heat absorption pipe 412. DETAILED DESCRIPTION

[0023] In order to further explain the technical solution of the present invention, it is described in detail below through specific embodiments.

[0024] See also Figure 1-4 The present invention provides a 24KV SF6 upper isolation circuit breaker ring network cabinet, comprising a mechanism compartment 1, a switch air chamber 2, a cable compartment 3 and a docking device 4, wherein the switch air chamber 2 is arranged at the rear end of the mechanism compartment 1, the lower ends of the mechanism compartment 1 and the switch air chamber 2 are both connected to the top of the cable compartment 3, and the bottom of the cable compartment 3 is provided with a docking device 4, the mechanism compartment 1 comprises a first cabinet body 11, a first cabinet door 12, a display 13, a fault indicator 14, a barometer 15, a passive electromagnetic The first cabinet body 11 is provided with a first cabinet door 12 hinged at the front end, a display 13 and a fault indicator 14 are respectively provided at the upper end of the front side of the first cabinet door 12, a barometer 15 is provided at the upper end of the left front side of the first cabinet door 12, a passive electromagnetic lock 16 is installed in the middle of the first cabinet door 12, an isolation mechanism 17 is provided at the upper end of the first cabinet body 11, a circuit breaker 18 is provided at the lower end of the first cabinet body 11, and the display 13 is electrically connected to the isolation mechanism 17.

[0025] Among them, the switch air chamber 2 includes a second cabinet 21, an expansion connector 22 and a circuit breaker switch 23. The second cabinet 21 is connected to the rear side of the first cabinet 11. The expansion connector 22 is arranged at the upper end of the second cabinet 21, and the circuit breaker switch 23 is arranged at the lower end of the second cabinet 21. The circuit breaker switch 23 is electrically connected to the circuit breaker 18.

[0026] Among them, the cable compartment 3 includes a third cabinet 31, a second cabinet door 32 and an outlet bushing 33. The third cabinet 31 is connected to the lower ends of the first cabinet 11 and the second cabinet 21, and the second cabinet door 32 is hinged on the front side of the third cabinet 31. The outlet bushing 33 is installed inside the third cabinet 31, and the outlet bushing 33 extends into the second cabinet 21, and the rear side of the third cabinet 31 is opened and closed.

[0027] Among them, the display 13 is a live display structure. When the display 13 shows that the cable compartment 3 is high-voltage and live, the isolation mechanism 17 will be controlled to interlock the compartment to prevent people from mistakenly entering the live interval. At the same time, when the outlet bushing 33 provided inside the cable compartment 3 is live, the passive electromagnetic lock 16 can lock the grounding operation hole to avoid wrong operation and grounding, thereby greatly improving the safety of the ring network cabinet and reducing the risk of electric shock.

[0028] See also Figure 5-7 The docking device 4 in this embodiment includes a box body 41, a motor 42, a driving wheel 43, a toothed belt 44, a driven wheel 45, a connecting shaft 46, a first clamp 47, a second clamp 48, a connecting pipe 49, a bellows 410, a fan 411 and a heat absorption pipe 412. The box body 41 is installed at the lower end of the third cabinet 31. The motor 42 is installed on the left side of the box body 41. The front output end of the motor 42 is connected to the driving wheel 43. The driving wheel 43 is externally connected to the toothed belt 44. The right side of the toothed belt 44 is connected to the driven wheel 45. Through the stable combination of the driving wheel 43, the toothed belt 44 and the driven wheel 45, a stable two-way transmission structure can be realized. The toothed belt 44 is plugged with connecting shafts 46 on the upper and lower sides, and the connecting shaft 46 on one side is plugged along the left side of the upper end of the toothed belt 44, while the connecting shaft 46 on the other side is plugged along the toothed belt 44. The right side of the lower end is plugged in, and the front ends of the connecting shafts 46 on both sides are respectively connected to the lower ends of the first clamp 47 and the second clamp 48, so that when the connecting shafts 46 on both sides move laterally with the upper and lower ends of the toothed belt 44, the first clamp 47 and the second clamp 48 can be driven to move outward and inward synchronously laterally. The first clamp 47 and the second clamp 48 are respectively arranged on the left and right sides of the upper end of the box body 41, and the inner sides of the first clamp 47 and the second clamp 48 are connected to the lower end of the connecting pipe 49, and a part of the upper end of the connecting pipe 49 is in a hose state, which can ensure that stable transmission activities can still be achieved after the subsequent position movement. The upper end of the connecting pipe 49 is connected to the bottom of the bellows 410, and the bellows 410 is bolted to the inner rear side of the third cabinet 31. Fans 411 are installed on the left and right sides of the inside of the bellows 410, and heat absorption pipes 412 are bolted on the left and right sides of the upper end of the bellows 410.

[0029] Among them, the connecting pipe 49, the fan 411 and the heat absorption pipe 412 are all symmetrically arranged along the left and right sides of the bellows 410, and the heat absorption pipes 412 on both sides extend into the mechanism compartment 1 and the switch air chamber 2 respectively, and the installed length, size and direction of the heat absorption pipe 412 can be set accordingly according to the actual situation inside the ring network cabinet to meet the efficient external heat dissipation transmission coordination of the heat generated inside the ring network cabinet.

[0030] Among them, the first clamp 47 and the second clamp 48 are respectively plugged into the left and right ends of the rear side of the third cabinet body 31, and the lateral lengths of the first clamp 47 and the second clamp 48 are inconsistent, ensuring that the second clamp 48 can be stably inserted laterally into the first clamp 47 to achieve a firm docking combination expansion between one ring main unit and another ring main unit.

[0031] See also Figure 8-9 In the present embodiment, the first clamping member 47 comprises a first vertical plate 471, a first clamping strip 472, a sealing plate 473, a first air duct 474, a positioning strip 475 and a locking structure 476. The first vertical plate 471 is vertically inserted into the left interior of the box body 41, and the interior of the first vertical plate 471 is connected to the outer end of the connecting shaft 46 provided at the upper left end. The upper end of the first vertical plate 471 is fixedly connected to the first clamping strip 472, and the space size opened on the left side of the first clamping strip 472 is larger than the space size opened on the right side. A sealing plate 473 is provided inside the first clamping strip 472 to reduce the occurrence of air leakage. The first air duct 474 is horizontally inserted into the middle part of the sealing plate 473, and the air inlet end of the first air duct 474 is connected to the lower end of the left connecting pipe 49. The positioning strip 475 is relatively fixedly connected to the upper and lower openings of the first clamping strip 472, and a locking structure 476 is installed on one side of the air outlet end of the first air duct 474.

[0032] The locking structure 476 includes a fixed plate 4761, a gear 4762, a movable plate 4763, a transmission groove 4764, a pin 4765, a lock shaft 4766, a rotating shaft 4767, a worm wheel 4768 and a worm 4769. The fixed plate 4761 is fixedly connected to the outside of the first air duct 474. The middle part of the lower end of the fixed plate 4761 is rotatably connected with the gear 4762. The upper end of the gear 4762 is meshedly connected with the movable plate 4763. There is a gap between the movable plate 4763 and the fixed plate 4761. The middle part of the movable plate 4763 is connected to the outside of the first air duct 474 through a bearing to ensure that the movable plate 4763 rotates. According to the process flow, transmission grooves 4764 are equidistantly provided on the six sides of the movable disk 4763, and the transmission grooves 4764 on each side are all in the shape of arc grooves, and pin shafts 4765 are correspondingly inserted into the six side transmission grooves 4764, and the pin shaft 4765 is plugged and fixed with the lock shaft 4766 on the side away from the transmission groove 4764, and the lock shaft 4766 is movably inserted into the fixed disk 4761, and a rotating shaft 4767 is connected to the middle part of the gear 4762, and the rotating shaft 4767 is connected to the worm gear 4768 on the side away from the gear 4762, and the lower end of the worm gear 4768 is meshed and connected with the worm 4769, and the worm 4769 is rotatably connected to one side of the first clamping strip 472.

[0033] Among them, the transmission groove 4764, the pin shaft 4765 and the lock shaft 4766 are all equidistantly arranged along the circular trajectory, and the pin shafts 4765 on each side are movably plugged into the sides inside the fixed plate 4761. In this way, multiple synchronous transmission plug-in locks can be achieved to enhance the firmness of the connection between the first clamp 47 and the second clamp 48.

[0034] See also Fig.10 In this embodiment, the second clamping member 48 includes a second vertical plate 481, a second clamping strip 482, a second air duct 483, a filter screen 484, a positioning groove 485 and a locking hole 486. The second vertical plate 481 is vertically inserted into the right side of the box body 41, and the second vertical plate 481 is arranged in an inverted L-shaped plate shape as a whole. The middle part of the second vertical plate 481 is connected to the outer end of the right connecting shaft 46, and the upper end of the second vertical plate 481 is fixed to the second clamping strip 482. The second air duct 483 is horizontally inserted into the second clamping strip 482, and the air inlet end of the second air duct 483 is connected to the lower end of the right connecting pipe 49. Filters 484 are installed on both the front and rear sides of the middle of the card strip 482. Through the setting of the filter 484, the heat can be stably conducted outward and external dust can be prevented from entering the second card strip 482. Two positioning grooves 485 are symmetrically opened on the upper and lower right sides of the second card strip 482, and the positions and sizes of the positioning grooves 485 match the positioning strip 475 fixed at the upper and lower openings of the first card strip 472. Six lock holes 486 are equidistantly opened on the right side of the second card strip 482 along a circular trajectory, and the positions of the six lock holes 486 correspond to the lock shafts 4766 inserted on the six sides of the fixed plate 4761.

[0035] Working principle: 1. First, the mechanism compartment 1, the switch air chamber 2 and the cable compartment 3 are separated and docked to realize the isolation setting of the circuit breaker ring network cabinet, so as to ensure the neatness of its internal space and avoid the messy placement of its internal equipment. Through the detection and cooperation of the display 13 and the fault indicator 14, it can be quickly obtained whether the ring network cabinet is energized. If it is energized, the isolation mechanism 17 is controlled to realize the interlocking of the compartment to prevent the staff from mistakenly entering and causing the risk of electric shock. At the same time, in conjunction with the passive electromagnetic lock 16 set on the front side of the first cabinet door 12, the detection of the energized condition of the outlet bushing 33 installed in the third cabinet 31 can be realized, so as to significantly enhance the anti-electric shock detection performance; 2. If it is necessary to expand and combine two ring network cabinets, the motor 42 provided on the left side of the driving box 41 can be driven to make the motor 42 realize the counterclockwise rotation of the driving wheel 43 connected to the front output end. As the driving wheel 43 rotates counterclockwise, the toothed belt 44 connected to the outside of the driving wheel 43 will be driven to realize the same direction rotation of the driven wheel 45 connected to the right side. In this way, the connecting shaft 46 respectively plugged into the upper end of the left side and the lower end of the right side of the toothed belt 44 will move synchronously and oppositely, that is, the first vertical plate 471 and the second vertical plate 481 provided in the first clamp 47 and the second clamp 48 are respectively realized. The opposite lateral movement, so that the first clamp 47 and the second clamp 48 can be moved from Figure 7 Status adjusted to Figure 6 state, to realize the synchronous outward movement of the first clamp 47 and the second clamp 48. When the first clamp 47 and the second clamp 48 of the other ring network cabinet complete the outward movement, the second clamp 482 of the other ring network cabinet can be inserted into the first clamp 472 of the one ring network cabinet. During the insertion process, the positioning grooves 485 symmetrically opened at the upper and lower ends of the right side of the second clamp 482 will be connected with the positioning strips 475 symmetrically fixedly connected at the upper and lower ends of the left side of the first clamp 472, so as to ensure the accurate docking of the second clamp 48 and the first clamp 47, so that the ring network cabinet on one side can realize accurate expansion docking activities with the ring network cabinet on the other side. 3. After the second clamping member 48 and the first clamping member 47 have completed the preliminary docking activity, the worm 4769 provided inside the rotating locking structure 476 can be used to rotate the worm 4769 to achieve the rotation of the worm wheel 4768 meshing at the upper end. As the worm wheel 4768 rotates, the rotating shaft 4767 inserted in the middle of the worm wheel 4768 can achieve the clockwise rotation of the gear 4762 on the other side. As the gear 4762 rotates clockwise, the movable disk 4763 meshing at the upper end of the gear 4762 and connected to the outer side of the first air duct 474 through the bearing rotates counterclockwise. As the movable disk 4763 rotates counterclockwise, the transmission grooves 4763 opened on the six sides of the movable disk 4763 are connected to the transmission grooves 4763. The pin shaft 4765 connected to the first and second clamping members 4764 will move outwards through the movement and guidance of the transmission groove 4764, so that the lock shaft 4766 connected to the other side of the pin shaft 4765 and movably embedded in the fixed plate 4761 will move outwards to be correspondingly inserted into the six lock holes 486 opened in the second clamping strip 482, so as to realize multi-directional simultaneous plug-in locking activities, thereby achieving a firm plug-in locking of the second clamping member 48 and the first clamping member 47, ensuring that the second clamping member 48 and the first clamping member 47 are firmly connected and not loose, thereby greatly strengthening the expansion and docking combination firmness of the ring network cabinet on one side and the ring network cabinet on the other side, so that the ring network cabinet can achieve an efficient expansion and combination docking effect; 4. After the expansion and docking combination activities of the two ring network cabinets are completed, the operation of the fans 411 arranged on the left and right sides of the wind box 410 can be realized, so that the fans 411 cooperate with the heat absorption pipes 412 arranged on both sides of the upper end of the wind box 410 to respectively realize the absorption and external conduction of the heat generated by the operation of the internal equipment of the mechanism compartment 1 and the switch air chamber 2, and cooperate with the connecting pipes 49 arranged on both sides of the bottom of the wind box 410 to transmit the hot air to the first air duct 474 and the second air duct 483 respectively. In this way, the hot air passes through the first air duct 474 and the second air duct The air is transmitted through the air duct 483 and will enter the first card strip 472 and the second card strip 482 which are connected in combination. Since the filter 484 is installed in the middle of the front and rear sides of the second card strip 482, the hot air can be discharged quickly, thereby realizing the auxiliary external heat dissipation of the hot air generated inside the ring network cabinet, and avoiding the occurrence of overheating and damage to the equipment. At the same time, the setting of the filter 484 can block external dust and prevent external dust from entering the first card strip 472 and the second card strip 482, thereby assisting the realization of auxiliary heat dissipation inside the ring network cabinet and improving the stability of equipment operation.

[0036] The above description is only a preferred example of the present invention and is not intended to limit the present invention. Although the present invention is described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A 24KV SF6 upper isolation circuit breaker ring network cabinet, characterized in that: The invention comprises a mechanism compartment (1), a switch air chamber (2), a cable compartment (3) and a docking device (4); the switch air chamber (2) is arranged at the rear end of the mechanism compartment (1); the lower ends of the mechanism compartment (1) and the switch air chamber (2) are connected to the top of the cable compartment (3); the bottom of the cable compartment (3) is provided with a docking device (4); the mechanism compartment (1) comprises a first cabinet body (11), a first cabinet door (12), a display (13), a fault indicator (14), a pressure gauge (15), a passive electromagnetic lock (16), an isolation mechanism (17) and a circuit breaker The first cabinet body (11) is provided with a first cabinet door (12) hingedly connected to the front end thereof; a display (13) and a fault indicator (14) are provided at the upper end of the front side of the first cabinet door (12); a pressure gauge (15) is provided at the upper end of the left front side of the first cabinet door (12); a passive electromagnetic lock (16) is installed at the middle of the first cabinet door (12); an isolation mechanism (17) is provided at the upper end of the first cabinet body (11); a circuit breaker (18) is provided at the lower end of the first cabinet body (11); and the display (13) is electrically connected to the isolation mechanism (17).

2. According to claim 1, a 24KV SF6 upper isolation circuit breaker ring network cabinet, characterized in that: The switch air chamber (2) comprises a second cabinet (21), an expansion connector (22) and a circuit breaker switch (23); the second cabinet (21) is connected to the rear side of the first cabinet (11); the expansion connector (22) is arranged at the upper end of the second cabinet (21); the circuit breaker switch (23) is arranged at the lower end of the second cabinet (21); and the circuit breaker switch (23) is electrically connected to the circuit breaker (18).

3. According to claim 2, a 24KV SF6 upper isolation circuit breaker ring network cabinet, characterized in that: The cable compartment (3) comprises a third cabinet (31), a second cabinet door (32) and an outlet bushing (33); the third cabinet (31) is butt-jointed to the lower ends of the first cabinet (11) and the second cabinet (21); the second cabinet door (32) is hingedly connected to the front side of the third cabinet (31); an outlet bushing (33) is installed inside the third cabinet (31), and the outlet bushing (33) extends into the interior of the second cabinet (21).

4. According to claim 1, a 24KV SF6 upper isolation circuit breaker ring network cabinet, characterized in that: The docking device (4) comprises a box (41), a motor (42), a driving wheel (43), a toothed belt (44), a driven wheel (45), a connecting shaft (46), a first clamp (47), a second clamp (48), a connecting pipe (49), a bellows (410), a fan (411) and a heat absorbing pipe (412); the box (41) is installed at the lower end of the third cabinet (31); a motor (42) is installed on the left side of the box (41); the front output end of the motor (42) is connected to the driving wheel (43); the driving wheel (43) is externally connected to a toothed belt (44); the right side of the toothed belt (44) is connected to the driven wheel (45); The toothed belt (44) is internally connected with a connecting shaft (46) at both upper and lower sides. The front sides of the connecting shaft (46) at both sides are respectively connected to a first clamp (47) and a second clamp (48). The first clamp (47) and the second clamp (48) are respectively arranged on the left and right sides of the upper end of the box body (41). One side of the first clamp (47) and the second clamp (48) are both connected to a connecting pipe (49). The upper end of the connecting pipe (49) is connected to the bottom of a bellows (410). The bellows (410) is bolted to the rear side of the third cabinet (31). A fan (411) is installed inside the bellows (410), and a heat absorption pipe (412) is connected to the upper end of the bellows (410).

5. According to claim 4, a 24KV SF6 upper isolation circuit breaker ring network cabinet is characterized in that: The first clamping member (47) comprises a first vertical plate (471), a first clamping strip (472), a sealing plate (473), a first air duct (474), a positioning strip (475) and a locking structure (476); the first vertical plate (471) is vertically inserted into the interior of the box body (41), and the interior of the first vertical plate (471) is connected to the outer end of the connecting shaft (46) on one side; the first clamping strip (472) is fixedly provided at the upper end of the first vertical plate (471), the sealing plate (473) is provided inside the first clamping strip (472), the first air duct (474) is plugged into the middle of the sealing plate (473), and the air inlet end of the first air duct (474) is connected to the connecting pipe (49); the positioning strip (475) is fixedly provided at the opening of the first clamping strip (472), and the locking structure (476) is installed on one side of the air outlet end of the first air duct (474).

6. According to claim 5, a 24KV SF6 upper isolation circuit breaker ring network cabinet is characterized in that: The locking structure (476) comprises a fixed plate (4761), a gear (4762), a movable plate (4763), a transmission groove (4764), a pin shaft (4765), a locking shaft (4766), a rotating shaft (4767), a worm wheel (4768) and a worm (4769), wherein the fixed plate (4761) is fastened to the outside of the first air duct (474), a gear (4762) is rotatably connected to one side of the lower end of the fixed plate (4761), the gear (4762) is meshingly connected to the movable plate (4763) at the upper end of the gear (4762), and the movable plate (4763) is connected to the first air duct (474). 74) is rotatably connected to the outside, a transmission groove (4764) is provided inside the movable disk (4763), a pin shaft (4765) is inserted inside the transmission groove (4764), one side of the pin shaft (4765) is fixed to the lock shaft (4766), a rotating shaft (4767) is connected to the middle of the gear (4762), the rotating shaft (4767) is connected to the worm wheel (4768) away from the gear (4762), the lower end of the worm wheel (4768) is meshed with the worm (4769), and the worm (4769) is rotatably connected to one side of the first clamping strip (472).

7. According to claim 4, a 24KV SF6 upper isolation circuit breaker ring network cabinet is characterized in that: The second clamping member (48) comprises a second vertical plate (481), a second clamping strip (482), a second air duct (483), a filter (484), a positioning groove (485) and a locking hole (486); the second vertical plate (481) is vertically inserted into the interior of the box body (41), and the middle portion of the second vertical plate (481) is connected to the outer side of the connecting shaft (46); the upper end of the second vertical plate (481) is fixed to the second clamping strip (482); the second air duct (483) is inserted into the interior of the second clamping strip (482), and the air inlet end of the second air duct (483) is connected to the connecting pipe (49); filters (484) are installed on both sides of the middle portion of the second clamping strip (482); a positioning groove (485) is provided on the outer side of the second clamping strip (482), and locking holes (486) are provided at equal intervals on one side of the interior of the second clamping strip (482).

8. According to claim 4, a 24KV SF6 upper isolation circuit breaker ring network cabinet, characterized in that: The connecting pipe (49), the fan (411) and the heat absorption pipe (412) are all symmetrically arranged along the left and right sides of the wind box (410), and the heat absorption pipes (412) on both sides extend into the interior of the mechanism compartment (1) and the switch air chamber (2) respectively.

9. According to claim 4, a 24KV SF6 upper isolation circuit breaker ring network cabinet, characterized in that: The first clamp (47) and the second clamp (48) are respectively plugged into the left end and the right end of the rear side of the third cabinet (31), and the first clamp (47) and the second clamp (48) have different transverse lengths.

10. According to claim 6, a 24KV SF6 upper isolation circuit breaker ring network cabinet, characterized in that: The transmission groove (4764), the pin shaft (4765) and the lock shaft (4766) are all arranged equidistantly along the annular track, and the pin shafts (4765) on each side are movably plugged into each side of the interior of the fixed disk (4761).

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