Rear cable outlet inflatable ring main unit for primary and secondary fusion ring main unit

Abstract

The invention belongs to the technical field of electrical equipment, particularly relates to a rear cable outlet inflatable ring main unit for a primary and secondary fusion ring main unit, and aims to overcome the defects that certain inconvenience exists when an inflatable ring main unit is inflated and gas entering the inflatable ring main unit cannot be cyclically dehumidified in the daily use process in the prior art. The power distribution station is provided with an opening, two door plates are symmetrically hinged to the opening of the power distribution station, a plurality of primary devices are installed in the power distribution station side by side at equal intervals, and air boxes are fixedly installed on the primary devices. At the moment, after the dry air is input through the butt joint pipe on one side, the dry air can be supplied into the multiple air boxes at the same time, in the daily use process, the air in the air boxes can be dehumidified in a circulating mode, and therefore secondary equipment located in the air boxes can stably operate and work.

Description

Technical Field

[0001] The invention relates to the technical field of electrical equipment, in particular to a rear-mounted cable outlet inflatable ring network box for a primary and secondary fusion ring network box. Background Art

[0002] The gas-filled ring main unit with rear cable outlet for primary and secondary integrated ring main unit is an advanced power equipment, which combines the characteristics of the ring main unit and the gas-filled ring main unit, and adopts the design of rear cable outlet. The equipment is mainly used in the power distribution network of the power system to achieve the distribution, control and protection of electric energy. It combines the advantages of the compact structure and easy installation of the ring main unit and the superior insulation performance and reliable operation of the gas-filled ring main unit. At the same time, the design of rear cable outlet improves the flexibility and convenience of cable connection.

[0003] In the actual use of the current inflatable mesh box, it is necessary to fill the inflatable mesh box with dry air to protect the electrical components installed in the inflatable mesh box. However, during the inflation process, it is often necessary to fill multiple inflatable mesh boxes with dry air, which makes inflation more troublesome. Furthermore, during the use of the inflatable mesh box, there is no corresponding gas treatment device inside the inflatable mesh box, which causes the humidity of the gas inside the inflatable mesh box to increase during long-term use, and the gas in the inflatable mesh box cannot be filtered and circulated. Therefore, we propose a primary and secondary fusion ring mesh box with a rear cable outlet inflatable ring mesh box to solve the above-mentioned problems. Summary of the invention

[0004] The present invention provides a rear-mounted cable outlet inflatable ring grid box for a primary and secondary fusion ring grid box, which solves the shortcomings of the prior art in which there is a certain inconvenience when inflating the inflatable grid box, and the gas flushed into the inflatable grid box cannot be circulated and dehumidified during daily use.

[0005] The present invention provides the following technical solutions: A rear cable outlet inflatable ring network box for a primary and secondary fusion ring network box, comprising a distribution station, wherein a plurality of primary devices are installed in parallel at equal intervals in the distribution station, an air box is fixedly installed on the primary device, a cable conductor is connected through the inner wall of the bottom of one side of the air box, and the air box is used to install the secondary device. The inflatable ring network box also includes: The air intake mechanism includes an opening and closing assembly, the opening and closing assembly penetrates the top inner wall of the corresponding air box and is connected to the top inner wall of the air box, one side of the opening and closing assembly is connected to a butt joint tube, a plugging assembly is installed in the butt joint tube, one end of the plugging assembly extends to the outside of the butt joint tube and is clamped with one end of another butt joint tube; The filtering mechanism includes a filter element assembly installed on one side of the air box, the bottom of the filter element assembly is connected to the gas delivery assembly, one side of the gas delivery assembly extends into the air box, a suction pump is fixedly installed on the top inner wall of the air box, and the suction end of the suction pump extends to the top of the air box and is respectively connected to the two filter element assemblies.

[0006] In one possible design, the opening and closing assembly includes a support tube that passes through the top inner wall of the air box and is fixedly connected to the top inner wall of the air box, a ball shell is fixedly installed on the top of the support tube, a ball valve is rotatably connected in the ball shell, an L-shaped hole is provided on the ball valve, the L-shaped hole is always connected to the support tube, a valve stem is fixedly installed on the top of the ball valve, the top of the valve stem passes through the top inner wall of the ball shell and extends to the top of the ball shell, a knob is fixedly installed on the top of the valve stem, a connecting tube is fixedly installed on the inner wall of one side of the ball shell, one end of the connecting tube extends to the outside of the ball shell and is fixedly connected to the docking tube.

[0007] In one possible design, the sealing assembly includes a closing ring fixedly installed in the docking tube, the closing ring is sealingly and slidingly connected to a closing cover, a plurality of flow holes are evenly spaced on the inner wall of the closing cover, the closing ring is used to seal the plurality of flow holes, one side of the closing cover extends to the outside of the docking tube, a clamping ring is fixedly installed at one end of the docking tube, and one side of the closing cover is clamped with the clamping ring on the other docking tube.

[0008] In a possible design, a support ring is fixedly installed in the butt joint tube, a fixing rod is fixedly installed on one side of the support ring, a collar is fixedly installed on the inner wall of one side of the closing cover, one end of the fixing rod respectively penetrates the inner wall of one side of the closing cover and the collar and extends into the closing cover, the fixing rod is tightly slidably connected to the inner wall of the collar, a first tension spring located in the closing cover is sleeved on the fixing rod, and two ends of the first tension spring are respectively fixedly connected to one side of the collar and one end of the fixing rod.

[0009] In one possible design, the filter element assembly includes a support plate fixedly mounted on one side of the air box, two card covers are symmetrically fixedly mounted on the top of the support plate, a filter tube is mounted in the card cover, the top end of the filter tube extends to the top of the card cover, a plurality of dehumidification plates are arranged at equal intervals in the filter tube, a same mounting rod is penetrated and connected to the plurality of dehumidification plates, a cover plate is mounted on the top of the filter tube, a hose is penetrated and fixedly connected on the top inner wall of the cover plate, the top ends of the two hoses extend to the top of the air box and are fixedly connected to the same cylindrical box, the suction end of the suction pump extends into the cylindrical box and is fixedly connected to the bottom inner wall of the cylindrical box, a second humidity sensor is fixedly mounted on the inner wall of one side of the air box, the second humidity sensor is electrically connected to the suction pump, a same U-shaped tube is fixedly mounted on the bottom inner wall of the two card covers, the bottom end of the U-shaped tube is fixedly mounted on the bottom inner wall of the U-shaped tube, and the bottom end of the air supply pipe is connected to the air supply assembly.

[0010] In a possible design, the two cover plates are fixedly connected with a same connecting plate, a threaded component is connected through the connecting plate, and the bottom of the threaded component is connected to the top of the support plate.

[0011] In one possible design, the threaded assembly includes a threaded cover that passes through the connecting plate and is rotatably connected to the connecting plate. A support screw is threadedly connected to the threaded cover. The bottom end of the support screw extends to the bottom of the threaded cover and is fixedly connected to the top of the connecting plate.

[0012] In one possible design, the gas delivery assembly includes an exhaust pipe that passes through the bottom inner wall of one side of the air box and is fixedly connected to the bottom inner wall of one side of the air box, the bottom end of the gas delivery pipe extends into the exhaust pipe and is fixedly connected to the top inner wall of the exhaust pipe, one end of the exhaust pipe is fixedly installed with a mounting cover, a first humidity sensor is fixedly installed on the top inner wall of the mounting cover, a flow limiting component is connected to the inner wall of one side of the mounting cover, one side of the flow limiting component passes through the inner wall of the other side of the mounting cover and extends to the outside of the mounting cover, and the flow limiting component is connected to the inner wall of the other side of the mounting cover.

[0013] In one possible design, the flow limiting component includes a support rod fixedly mounted on the inner wall of one side of the mounting cover, a blocking tube is fixedly mounted through the inner wall of the other side of the mounting cover, one end of the support rod extends into the blocking tube and is elastically connected to a blocking ball, which fits the inner wall of the blocking tube.

[0014] In a possible design, a connecting groove is provided on one side of the blocking ball, one end of the support rod extends into the connecting groove and a slide is fixedly installed thereon, the slide is slidably connected to the inner wall of the connecting groove, a second tension spring is fixedly installed on one side of the slide, and one end of the second tension spring is fixedly connected to the inner wall of one side of the connecting groove.

[0015] In the present invention, a plurality of primary devices are first assembled, and when two adjacent primary devices are connected side by side, the clamping ring can be connected with the corresponding closing cover, and when the two primary devices are brought close to each other, the corresponding connecting tube can be used to push the closing cover to move, so that the plurality of flow holes on the closing cover can be kept in communication with the corresponding connecting tube, so that dry air can flow to another connecting tube through the closing cover, so that after the plurality of primary devices are connected, the plurality of connecting tubes can be kept in communication, so that gas can be conveniently added to a plurality of air boxes at the same time, and when the closing cover is moved, the first tension spring can be placed in a tensioned stress state, and the first tension spring can be used to elastically limit the closing cover so that the closing cover can be moved without being in contact with the clamping ring. When the connection is made, the first tension spring can move the closing cover to the original position, and the corresponding multiple flow holes can be blocked by the closing ring. After the multiple primary devices are spliced, the butt joint on one side can be connected to the external delivery pipe for delivering dry air, and then the multiple valve stems are rotated in turn to drive the corresponding ball valves to rotate, so that the L-shaped hole can be rotated to keep in communication with the connecting pipe. Therefore, after the dry air is delivered to the butt joint, the dry air can flow from the connecting pipe and the L-shaped hole to the supporting pipe, and then the dry air can be delivered to the air box by the supporting pipe, so that the dry air can be replenished in the air box. When the air is filled with gas, the air pressure in the air box will increase, and the installation cover will keep in communication with the air box through the exhaust pipe. Therefore, after the air pressure in the air box increases, it can push the blocking ball to move along the axial direction of the support rod, and when the blocking ball moves, the second tension spring can be in a stressed and stretched state, so that the blocking tube can be in a connected state, thereby the original gas in the air box can be discharged, and the air pressure in the air box can be kept balanced, and the first humidity sensor arranged in the mounting cover can detect the humidity of the gas flowing into the mounting cover. When the dry air filled into the air box enters the mounting cover and the dry gas can be detected by the first humidity sensor, it can be said that the inflation into the air box is completed. Therefore, when the air supply to the air box is stopped, the second tension spring in a stressed state can drive the blocking ball to move in the opposite direction until it is tightly fitted with the inner wall of the blocking tube, thereby being able to To prevent gas leakage in the air box, during daily use, when the second humidity sensor detects that the humidity of the gas in the air box increases, it can send a work instruction to the suction pump to start working, so that the gas in the air box can be sucked out from the gas delivery component, and then through the gas delivery pipe and the U-shaped pipe, the gas can be dispersed and delivered to the two filter tubes. Therefore, when the gas flows upward, it can pass through the corresponding multiple dehumidification plates, and the dehumidification plates can be used to filter the air, so that the moisture in the air can be absorbed. The filtered air can pass through the output of the hose, columnar box and suction pump, and the filtered gas can be returned to the air box, so that the gas in the air box can be circulated and dehumidified conveniently, and the air box can be kept in a dry state.

[0016] It is to be understood that the foregoing general description and the following detailed description are exemplary only and are not restrictive of the invention.

[0017] Beneficial effect: In the present invention, by means of the opening and closing assembly, when it is necessary to fill the air box with dry air, the valve stem can be rotated by turning the knob, so that the L-shaped hole can be rotated to be connected with the connecting pipe. Therefore, after the dry air is transported to the butt-joint pipe, the dry air can flow from the connecting pipe and the L-shaped hole to the supporting pipe, and then the dry air can be transported to the air box by the supporting pipe, so that the dry air can be replenished in the air box. In the present invention, by means of the provided blocking assembly, when two adjacent primary devices are connected side by side, the clamp ring can be docked with the closed cover, and when the two primary devices are brought close to each other, the closed cover can be pushed to move by using the corresponding docking tube, so that the multiple flow holes on the closed cover are kept in communication with the corresponding docking tube, so that the dry air can flow to another docking tube through the closed cover, so that after the multiple primary devices are connected, the multiple docking tubes can be kept in communication, so that the gas can be easily replenished in multiple gas boxes at the same time; In the present invention, by setting the filter element assembly, after placing the two groups of dehumidification plates in the corresponding filter tubes respectively, the cover plate and the corresponding filter tubes can be clamped together. After the second humidity sensor detects that the humidity of the gas in the air box increases, a working instruction can be issued to the suction pump to start the suction pump, so that the gas in the air box can be sucked out from the gas transmission assembly, and then the gas can be dispersed and transported to the two filter tubes through the gas transmission pipe and the U-shaped tube. Therefore, when the gas flows upward, it can pass through the corresponding multiple dehumidification plates, and the dehumidification plates can be used to filter the air, so that the moisture in the air can be absorbed. The filtered air can pass through the hose, the column box and the output of the suction pump, and the filtered gas can be returned to the air box, so that the gas in the air box can be circulated and dehumidified conveniently, and the air box can be kept in a dry state. In the present invention, by means of the provided gas delivery assembly, when the air box is inflated, the gas originally in the air box can be pushed into the exhaust pipe, thereby increasing the air pressure in the mounting cover. After the air pressure in the mounting cover is increased, the flow limiting component can be driven to move, thereby enabling the flow limiting component to be in an open state, thereby enabling the gas originally contained in the air box to be discharged, and the first humidity sensor provided in the mounting cover can detect the humidity of the gas flowing into the mounting cover, and when the dry air inflated into the air box enters the mounting cover and the first humidity sensor can detect the dry gas, it can be indicated that the inflation into the air box is completed.

[0018] The present invention connects multiple primary devices so that adjacent butt joints and closed covers can remain connected. At this time, after dry air is input from one side of the butt joint, dry gas can be supplied to multiple air boxes at the same time. In addition, during daily use, the gas in the air box can be circulated and dehumidified, thereby enabling the secondary equipment located in the air box to operate stably. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A three-dimensional schematic diagram of the internal structure of a rear-mounted cable outlet inflatable ring network box for a primary and secondary fusion ring network box provided in an embodiment of the present invention; Figure 2 A three-dimensional schematic diagram from the first perspective of a connection structure of multiple groups of primary equipment of a rear cable outlet inflatable ring network box for a primary-secondary fusion ring network box provided in an embodiment of the present invention; Figure 3 A three-dimensional schematic diagram from a second perspective of a connection structure of multiple groups of primary equipment of a rear cable outlet inflatable ring network box for a primary-secondary fusion ring network box provided in an embodiment of the present invention; Figure 4 A three-dimensional schematic diagram of the primary equipment and air box connection structure of the rear cable outlet inflatable ring network box for the primary and secondary fusion ring network box provided in an embodiment of the present invention; Figure 5 A three-dimensional schematic diagram of the cross-sectional structure of the installation cover of the rear cable outlet inflatable ring network box for the primary and secondary fusion ring network box provided in an embodiment of the present invention; Figure 6 A three-dimensional schematic diagram of the cross-sectional structure of the spherical shell of the rear cable outlet inflatable ring network box for the primary and secondary fusion ring network box provided in an embodiment of the present invention; Figure 7 A three-dimensional schematic diagram of the cross-sectional structure of the butt-joint pipe of the rear cable outlet inflatable ring network box for the primary and secondary fusion ring network box provided in an embodiment of the present invention; Figure 8 A three-dimensional schematic diagram of a closed cover and a closed ring connection structure of a rear-mounted cable outlet inflatable ring network box for a primary and secondary fusion ring network box provided in an embodiment of the present invention; Fig. 9 A three-dimensional schematic diagram of the internal structure of the air box of the rear cable outlet inflatable ring network box for the primary and secondary fusion ring network box provided in an embodiment of the present invention; Fig.10 A schematic diagram of the connection structure of the filter tube and multiple dehumidification plates of the rear cable outlet inflatable ring network box for the primary and secondary fusion ring network box provided in an embodiment of the present invention.

[0020] Reference numerals: 1. Distribution station; 2. Dehumidification plate; 3. Primary equipment; 4. Gas box; 5. Support pipe; 6. Ball shell; 7. Ball valve; 8. Valve stem; 9. Knob; 10. L-shaped hole; 11. Connecting pipe; 12. Butt pipe; 121. Support ring; 13. Fixing rod; 14. Closing cover; 15. Flow hole; 16. Ring; 17. First tension spring; 18. Closing ring; 19. Snap ring; 20. Exhaust pipe; 21. Mounting cover; 22 , the first humidity sensor; 23, the retaining tube; 24, the supporting rod; 25, the blocking ball; 26, the connecting groove; 27, the second tension spring; 28, the supporting plate; 29, the card cover; 30, the U-shaped tube; 31, the filter tube; 32, the cover plate; 33, the connecting plate; 34, the threaded cover; 35, the supporting screw; 36, the air supply pipe; 37, the hose; 38, the columnar box; 39, the suction pump; 40, the second humidity sensor; 41, the mounting rod. DETAILED DESCRIPTION

[0021] The embodiments of the present invention are described below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0022] In the description of the embodiments of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms, "connection" and "installation" should be understood in a broad sense. For example, "connection" can be a detachable connection or a non-detachable connection; it can be a direct connection or an indirect connection through an intermediate medium. In addition, "connection" can be a direct connection or an indirect connection through an intermediate medium. Among them, "fixed" means that they are connected to each other and the relative position relationship after connection remains unchanged. The directional terms mentioned in the embodiments of the present invention, such as "inside", "outside", "top", "bottom", etc., are only reference to the directions of the accompanying drawings. Therefore, the directional terms used are for better and clearer explanation and understanding of the embodiments of the present invention, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the embodiments of the present invention.

[0023] In the embodiments of the present invention, the terms "first" and "second" are used for descriptive purposes only and are not to be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features.

[0024] In the embodiments of the present invention, "and / or" is only a description of the association relationship of the associated objects, indicating that three relationships may exist. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0025] References to "one embodiment" or "some embodiments" etc. described in this specification mean that a particular feature, structure or characteristic described in conjunction with the embodiment is included in one or more embodiments of the present invention. Thus, the phrases "in one embodiment", "in some embodiments", "in some other embodiments", "in some other embodiments", etc. appearing in different places in this specification do not necessarily refer to the same embodiment, but mean "one or more but not all embodiments", unless otherwise specifically emphasized in other ways. The terms "including", "comprising", "having" and their variations all mean "including but not limited to", unless otherwise specifically emphasized in other ways.

[0026] Example 1: Reference Figure 1-10 A ring network box, the inflatable ring network box includes a distribution station 1, and two door panels are symmetrically hinged at the opening of the distribution station 1, which is convenient for opening and closing the distribution station 1. Multiple primary devices 3 are installed in parallel at equal intervals in the distribution station 1, and an air box 4 is fixedly installed on each primary device 3 for installing secondary equipment and protecting cable conductors.

[0027] like Figure 6 As shown, the air intake mechanism is designed to fill dry air into the air box 4. An air intake mechanism is connected to the top of each air box 4. The air intake mechanism includes a support tube 5, which passes through the top inner wall of the air box 4 and is fixedly connected to the air box 4. A ball shell 6 is fixedly installed on the top of the support tube 5, and a ball valve 7 is rotatably connected in the ball shell 6. An L-shaped hole 10 is opened on the ball valve 7, and this L-shaped hole 10 is always connected to the support tube 5. A valve stem 8 is fixedly installed on the top of the ball valve 7, and the top of the valve stem 8 passes through the top inner wall of the ball shell 6 and extends to the top of the ball shell 6. A knob 9 is also fixedly installed on the top of the valve stem 8. A connecting pipe 11 is fixedly installed on the inner wall of one side of the ball shell 6, and one end of the connecting pipe 11 extends to the outside of the ball shell 6 and is fixedly connected to the docking pipe 12. When it is necessary to fill dry air into the air box 4, the operator can turn the knob 9, and the knob 9 drives the valve stem 8 and the ball valve 7 to rotate, so that the L-shaped hole 10 and the connecting pipe 11 remain connected. In this way, dry air can enter the support tube 5 through the connecting tube 11 and the L-shaped hole 10 , and then be transported to the air box 4 by the support tube 5 .

[0028] like Figure 7As shown, the design of the butt-joint pipe 12 is to achieve the connection between multiple gas boxes 4. A plugging assembly is installed in each butt-joint pipe 12. The plugging assembly includes a closed ring 18 fixedly installed in the butt-joint pipe 12, and a closed cover 14 is sealed and slidably connected to the closed ring 18. A plurality of flow holes 15 are evenly spaced on the inner wall of the closed cover 14, and these flow holes 15 are blocked by the closed ring 18 under normal circumstances. One side of the closed cover 14 extends to the outside of the butt-joint pipe 12, and a clamping ring 19 is fixedly installed at one end of the butt-joint pipe 12. When two adjacent primary devices 3 are connected side by side, the clamping ring 19 on one primary device 3 will be clamped with the closed cover 14 on the other primary device 3. In the process of the two primary devices 3 approaching each other, the butt-joint pipe 12 will push the closed cover 14 to move, so that the flow holes 15 on the closed cover 14 are kept in communication with the corresponding butt-joint pipe 12. In this way, the dry air can flow to another butt-joint pipe 12 through the closed cover 14, so as to achieve the connection between multiple gas boxes 4 and facilitate the simultaneous replenishment of gas in multiple gas boxes 4.

[0029] like Figure 7 As shown, in order to ensure that the closing cover 14 can move and reset stably, a support ring 121 and a fixing rod 13 are also fixedly installed in the butt joint pipe 12. A collar 16 is fixedly installed on the inner wall of one side of the closing cover 14, and one end of the fixing rod 13 penetrates the inner wall of one side of the closing cover 14 and the collar 16 and extends into the closing cover 14. A first tension spring 17 is sleeved on the fixing rod 13, and the two ends of the first tension spring 17 are fixedly connected to one side of the collar 16 and one end of the fixing rod 13 respectively. When the closing cover 14 moves, the first tension spring 17 will be in a stressed and stretched state. When the two primary devices 3 are disassembled and separated, the first tension spring 17 in a stressed state can drive the closing cover 14 to move in the opposite direction and reset, and move the flow hole 15 into the closing ring 18, so as to achieve the blocking of the butt joint pipe 12.

[0030] like Figure 4 and Fig.10As shown, the filter mechanism is designed to filter and dehumidify the air entering the air box 4. A filter element assembly is installed on one side of each air box 4. The filter element assembly includes a support plate 28 fixedly installed on one side of the air box 4, and two card covers 29 are symmetrically fixedly installed on the top of the support plate 28. A filter tube 31 is fixedly installed in the card cover 29, and the top of the filter tube 31 extends to the top of the card cover 29. A plurality of dehumidification plates 2 are arranged at equal intervals in the filter tube 31, and a mounting rod 41 is connected through these dehumidification plates 2 to facilitate the placement of the dehumidification plates 2 in the filter tube 31. A cover plate 32 is fixedly installed at the top of the filter tube 31, and a hose 37 is fixedly connected through the top inner wall of the cover plate 32. The top ends of the two hoses 37 extend to the top of the air box 4 and are fixedly connected to a cylindrical box 38. The suction end of a suction pump 39 is fixedly installed in the cylindrical box 38, and the suction pump 39 is used to extract the gas in the air box 4 and filter it through the filter tube 31. A second humidity sensor 40 is also fixedly mounted on one inner wall of the air box 4, and the second humidity sensor 40 is electrically connected to the suction pump 39. When the second humidity sensor 40 detects that the humidity of the gas in the air box 4 increases, it sends a working instruction to the suction pump 39 to start the suction pump 39.

[0031] like Figure 4 As shown, in order to facilitate the clamping and positioning of the two filter tubes 31, a connecting plate 33 is fixedly connected to the two cover plates 32. A threaded assembly is connected through the connecting plate 33, and the bottom of the threaded assembly is connected to the top of the support plate 28. The threaded assembly includes a threaded cover 34 that penetrates the connecting plate 33 and is rotatably connected to the connecting plate 33, and a support screw 35 is connected to the threaded cover 34. The bottom end of the support screw 35 extends to the bottom of the threaded cover 34 and is fixedly connected to the top of the connecting plate 33. By operating the threaded cover 34, the connecting plate 33 can be driven to move longitudinally, thereby driving the two cover plates 32 to move downward to clamp and position the two filter tubes 31.

[0032] The primary equipment 3 is the basic component of the ring network box, mainly including high-voltage switchgear, which is responsible for closing the circuit in the power system, carrying and breaking the current under normal circuit conditions, and can close, carry and break the current under abnormal circuit conditions within a specified time, such as short-circuit current. Specifically, the components in the primary equipment mainly include: Load switch: A switching device used to disconnect and connect load current, close short-circuit current, and carry short-circuit current for a specified time in a power system.

[0033] Circuit breaker: A switching device that can close, carry and interrupt current under normal circuit conditions, and can close, carry and interrupt current under abnormal circuit conditions (including short circuit conditions) within a specified time.

[0034] Isolating switch: A switching device that is mainly used for "isolating power supply, switching operation, connecting and disconnecting low current circuits" and has no arc extinguishing function.

[0035] Fuse: An electrical appliance that uses the heat generated by itself to melt the fuse and disconnect the circuit when the current exceeds the specified value.

[0036] Current transformer: An instrument that converts a large current into a smaller current, usually a standard 5A or 1A current.

[0037] Voltage transformer: An instrument that converts high voltage into low voltage, usually a standard 100V or 100 / √3V low voltage.

[0038] Secondary equipment components Secondary equipment is responsible for monitoring, controlling and protecting primary equipment, and is mainly composed of distribution automation terminals, integrated power supply systems and communication modules. Specifically, the components in secondary equipment mainly include: Distribution Automation Terminal (DTU): It can monitor the power grid status in real time, detect and handle abnormalities in time, and improve power supply reliability. It usually contains a high-performance DSP processor for data acquisition, processing and transmission.

[0039] Integrated power supply system: provides stable and reliable power support for the equipment in the ring network box to ensure the normal operation of the equipment.

[0040] Communication module: responsible for data exchange between the ring network box and the external system to achieve remote monitoring and control. It supports multiple communication protocols and interfaces, such as Ethernet, RS-485, etc.

[0041] High-precision sensor: used to collect current, voltage and other parameters of primary equipment and convert them into signals that can be processed by secondary equipment.

[0042] Secondary aviation plug: used to aggregate the power supply, current, remote signal, remote control and other circuits of the primary equipment to the aviation plug room of the DTU unit to realize signal transmission and connection.

[0043] The present application can be used in the field of electrical equipment technology, and can also be used in other fields applicable to the present application.

[0044] Example 2: Reference Figure 6, improved on the basis of embodiment 1: a rear cable outlet inflatable ring network box for a primary and secondary fusion ring network box, which is applied to the field of electrical equipment technology, and the design of the gas delivery component is to deliver the filtered air back to the air box 4. The gas delivery component includes an exhaust pipe 20 that passes through the bottom inner wall of one side of the air box 4 and is fixedly connected to the air box 4. A mounting cover 21 is fixedly installed at one end of the exhaust pipe 20, and a first humidity sensor 22 is fixedly installed on the top inner wall of the mounting cover 21 for detecting the humidity of the gas flowing into the mounting cover 21. A flow limiting component is connected to the inner wall of one side of the mounting cover 21 to control the outflow of gas. The flow limiting component includes a support rod 24 fixedly installed on the inner wall of one side of the mounting cover 21 and a blocking tube 23 that passes through the inner wall of the other side of the mounting cover 21. One end of the support rod 24 extends into the blocking tube 23 and is elastically connected to a blocking ball 25, and the blocking ball 25 fits the inner wall of the blocking tube 23. After the gas enters the mounting cover 21, the gas pressure in the blocking tube 23 increases, pushing the blocking ball 25 to move laterally along the support rod 24 and break away from the inner wall of the blocking tube 23, thereby allowing the gas to flow out. When the gas supply to the gas box 4 stops, the blocking ball 25 will move in the opposite direction under the action of the second tension spring 27 until it is tightly fitted with the inner wall of the blocking tube 23 to prevent gas leakage.

[0045] However, as is well known to those skilled in the art, the working principles and wiring methods of the first humidity sensor 22, the suction pump 29 and the second humidity sensor 40 are commonplace, and are conventional means or common knowledge, and will not be elaborated here. Those skilled in the art may make any optional selections according to their needs or convenience.

[0046] The above are only specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention; the embodiments of the present invention and the features in the embodiments can be combined with each other without conflict. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A rear-mounted cable outlet inflatable ring network box for a primary-secondary fusion ring network box, comprising a distribution station (1), wherein a plurality of primary devices (3) are installed in parallel at equal intervals in the distribution station (1), an air box (4) is fixedly installed on the primary device (3), a cable conductor is connected through the inner wall of the bottom of one side of the air box (4), and the air box (4) is used to install secondary devices, characterized in that: The inflatable ring cage also includes: An air intake mechanism, the air intake mechanism comprising an opening and closing assembly, the opening and closing assembly penetrating the top inner wall of the corresponding air box (4) and connected to the top inner wall of the air box (4), one side of the opening and closing assembly being connected to a butt joint tube (12), a plugging assembly being installed in the butt joint tube (12), one end of the plugging assembly extending to the outside of the butt joint tube (12) and being snap-connected to one end of another butt joint tube (12); The filtering mechanism comprises a filter element assembly mounted on one side of the air box (4), the bottom of the filter element assembly being connected to the gas delivery assembly, one side of the gas delivery assembly extending into the air box (4), a suction pump (39) being fixedly mounted on the top inner wall of the air box (4), the suction end of the suction pump (39) extending to the top of the air box (4) and being respectively connected to the two filter element assemblies.

2. The rear cable outlet inflatable ring network box for the primary and secondary fusion ring network box according to claim 1 is characterized in that: The opening and closing assembly comprises a support tube (5) penetrating the inner wall of the top of the air box (4) and fixedly connected to the inner wall of the top of the air box (4); a ball shell (6) is fixedly mounted on the top of the support tube (5); a ball valve (7) is rotatably connected inside the ball shell (6); an L-shaped hole (10) is provided on the ball valve (7); the L-shaped hole (10) is always connected to the support tube (5); a valve stem (8) is fixedly mounted on the top of the ball valve (7); the top of the valve stem (8) penetrates the inner wall of the top of the ball shell (6) and extends to the top of the ball shell (6); a knob (9) is fixedly mounted on the top of the valve stem (8); a connecting tube (11) is fixedly mounted on the inner wall of one side of the ball shell (6); one end of the connecting tube (11) extends to the outside of the ball shell (6) and is fixedly connected to the docking tube (12).

3. The rear cable outlet inflatable ring network box for the primary and secondary fusion ring network box according to claim 2 is characterized in that: The plugging assembly comprises a sealing ring (18) fixedly mounted in the butt joint pipe (12); the sealing ring (18) is sealingly and slidably connected to a sealing cover (14); a plurality of flow holes (15) are formed on the inner wall of the sealing cover (14) at equal intervals; the sealing ring (18) is used to plug the plurality of flow holes (15); one side of the sealing cover (14) extends to the outside of the butt joint pipe (12); a clamping ring (19) is fixedly mounted on one end of the butt joint pipe (12); one side of the sealing cover (14) is clamped with the clamping ring (19) on the other butt joint pipe (12).

4. The rear cable outlet inflatable ring network box for the primary and secondary fusion ring network box according to claim 3 is characterized in that: A support ring (121) is fixedly installed in the butt joint pipe (12), a fixing rod (13) is fixedly installed on one side of the support ring (121), a collar (16) is fixedly installed on one side inner wall of the closing cover (14), one end of the fixing rod (13) respectively penetrates one side inner wall of the closing cover (14) and the collar (16) and extends into the closing cover (14), the fixing rod (13) and the inner wall of the collar (16) are tightly slidably connected, a first tension spring (17) located in the closing cover (14) is sleeved on the fixing rod (13), and two ends of the first tension spring (17) are respectively fixedly connected to one side of the collar (16) and one end of the fixing rod (13).

5. The rear cable outlet inflatable ring network box for the primary and secondary fusion ring network box according to claim 1 is characterized in that: The filter element assembly comprises a support plate (28) fixedly mounted on one side of the air box (4); two card covers (29) are symmetrically fixedly mounted on the top of the support plate (28); a filter tube (31) is mounted inside the card cover (29); the top end of the filter tube (31) extends to the top of the card cover (29); a plurality of dehumidification plates (2) are arranged at equal intervals inside the filter tube (31); the plurality of dehumidification plates (2) are connected to a same mounting rod (41); a cover plate (32) is mounted on the top end of the filter tube (31); a hose (37) is fixedly mounted on the top inner wall of the cover plate (32); the top ends of the two hoses (37) extend to the top of the air box (4); A same cylindrical box (38) is fixedly connected to the top, the suction end of the suction pump (39) extends into the cylindrical box (38) and is fixedly connected to the bottom inner wall of the cylindrical box (38), a second humidity sensor (40) is fixedly installed on the inner wall of one side of the air box (4), the second humidity sensor (40) is electrically connected to the suction pump (39), a same U-shaped tube (30) is fixedly installed on the bottom inner wall of the two card covers (29), the bottom end of the U-shaped tube (30) extends to the bottom of the support plate (28), an air supply pipe (36) is fixedly installed on the bottom inner wall of the U-shaped tube (30), and the bottom end of the air supply pipe (36) is connected to the air supply component.

6. The rear cable outlet inflatable ring network box for the primary and secondary fusion ring network box according to claim 5 is characterized in that: The two cover plates (32) are fixedly connected to a common connecting plate (33), a threaded component is connected through the connecting plate (33), and the bottom of the threaded component is connected to the top of the supporting plate (28).

7. The rear cable outlet inflatable ring network box for the primary and secondary fusion ring network box according to claim 6 is characterized in that: The threaded assembly comprises a threaded cover (34) that penetrates the connecting plate (33) and is rotatably connected to the connecting plate (33); a support screw (35) is internally threadedly connected to the threaded cover (34); the bottom end of the support screw (35) extends to below the threaded cover (34) and is fixedly connected to the top of the connecting plate (33).

8. The rear cable outlet inflatable ring network box for the primary and secondary fusion ring network box according to claim 5 is characterized in that: The gas delivery assembly comprises an exhaust pipe (20) penetrating the bottom inner wall of one side of the gas box (4) and fixedly connected to the bottom inner wall of one side of the gas box (4); the bottom end of the gas delivery pipe (36) extends into the exhaust pipe (20) and is fixedly connected to the top inner wall of the exhaust pipe (20); a mounting cover (21) is fixedly mounted on one end of the exhaust pipe (20); a first humidity sensor (22) is fixedly mounted on the top inner wall of the mounting cover (21); a flow limiting component is connected to the inner wall of one side of the mounting cover (21); one side of the flow limiting component penetrates the inner wall of the other side of the mounting cover (21) and extends to the outside of the mounting cover (21); the flow limiting component is connected to the inner wall of the other side of the mounting cover (21).

9. The rear cable outlet inflatable ring network box for the primary and secondary fusion ring network box according to claim 8 is characterized in that: The flow limiting component comprises a support rod (24) fixedly mounted on an inner wall of one side of the mounting cover (21); a blocking tube (23) is fixedly mounted through the inner wall of the other side of the mounting cover (21); one end of the support rod (24) extends into the blocking tube (23) and is elastically connected to a blocking ball (25); the blocking ball (25) is in contact with the inner wall of the blocking tube (23).

10. The rear cable outlet inflatable ring network box for the primary and secondary fusion ring network box according to claim 9, characterized in that: A connecting groove (26) is formed on one side of the blocking ball (25); one end of the support rod (24) extends into the connecting groove (26) and is fixedly mounted with a slide plate, the slide plate being slidably connected to the inner wall of the connecting groove (26); a second tension spring (27) is fixedly mounted on one side of the slide plate, and one end of the second tension spring (27) is fixedly connected to the inner wall of one side of the connecting groove (26).

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