Spiral lifting type flood-prevention sealed cabin of cable branch box

Abstract

The invention belongs to the technical field of cable branch boxes, and discloses a spiral lifting type flood-prevention water-sealed cabin of a cable branch box, which comprises a fixed base fixedly mounted on a ground foundation; a liftable cabin body is arranged at the top of the fixed base, and a mounting cavity of the cable branch box is arranged in the liftable cabin body; a spiral lifting mechanism is arranged on the fixed base, and the liftable cabin ascends and descends in the vertical direction through the spiral lifting mechanism; a water level monitoring module is arranged on the outer side of the liftable cabin body and used for monitoring the height of the external water level in real time. According to the scheme, the external water level is monitored in real time through the water level monitoring module, and the control system automatically triggers the lifting mechanism, so that the liftable cabin body is lifted along with the water level, the safe height higher than the flood level is always kept, and water inflow is avoided. Compared with flood control measures with fixed height, the scheme can adapt to different water level changes, the protection reliability is improved, and the operation and maintenance cost is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of cable branch boxes, and more particularly to a spiral lifting type flood-proof sealing cabin of a cable branch box. Background Art

[0002] Cable branch boxes, as key equipment in power distribution systems, are widely used in urban power grids, industrial parks, and outdoor distribution sites to facilitate cable tapping and switching. As key equipment in power distribution systems, cable branch boxes are typically installed outdoors, making them vulnerable to extreme weather conditions such as floods and heavy rain.

[0003] When encountering extreme weather such as heavy rain and floods, traditional cable branch boxes often have insufficient waterproof performance, causing water to enter the internal equipment, leading to faults such as short circuits and insulation damage, seriously affecting the safe and stable operation of the power system.

[0004] Traditional flood prevention measures for cable branch boxes mainly include raising the foundation, sealing the box, or installing water retaining boards. However, these methods have the following shortcomings: 1. The flood control height is fixed and has poor adaptability: The traditional method relies on the preset flood control height and cannot dynamically respond to water level changes. If the water level exceeds the design height, the equipment will still be damaged by water.

[0005] 2. High maintenance costs: After a flood, sealing components need to be manually inspected and repaired, and it is difficult and costly to repair equipment after it is submerged in water. Summary of the Invention

[0006] The purpose of the present invention is to solve the shortcomings of the prior art and to provide a spiral lifting type flood-proof sealing cabin for a cable branch box.

[0007] In order to solve the above-mentioned background technical problems, the present invention adopts the following technical solutions: The spiral lifting type flood-proof sealing cabin of the cable branch box comprises a fixed base, which is fixedly installed on the ground foundation; A liftable cabin is provided on the top of the fixed base, and a mounting cavity for a cable branch box is provided inside the liftable cabin; The fixed base is provided with a spiral lifting mechanism, and the liftable cabin is lifted and lowered in the vertical direction by the spiral lifting mechanism; A water level monitoring module is provided on the outside of the liftable cabin, and the water level monitoring module is used to monitor the external water level in real time; A waterproof driving device is provided in the fixed base, and the waterproof driving device is connected to the spiral lifting mechanism; A control system is provided in the liftable cabin, and the control system is connected to the water level monitoring module and the waterproof driving device by signal. The control system controls the lifting action of the spiral lifting mechanism according to the water level data.

[0008] As a further solution of the present invention: the liftable cabin body includes an upper cabin body and a lower cabin body, the top of the lower cabin body is provided with a circle of sealing grooves, the bottom of the upper cabin body is fixedly connected to a sealing pressure plate, and hydraulic telescopic rods are equidistantly arranged on the inner side wall of the lower cabin body along the circumferential direction, and the two ends of the hydraulic telescopic rods are fixedly connected to the inner walls of the upper cabin body and the lower cabin body respectively through fixed blocks.

[0009] As a further solution of the present invention: the spiral lifting mechanism includes at least two groups of symmetrically arranged spiral screws, and a threaded sleeve is threadedly connected to the spiral screw. The threaded sleeve extends to the interior of the liftable cabin and is fixedly connected to the side wall of the lower cabin. The bottom end of the spiral screw extends to the interior of the fixed base and is connected to the waterproof drive device. A sealing ring is provided at the connection between the spiral screw and the fixed base.

[0010] As a further solution of the present invention: the waterproof driving device includes a waterproof motor and a belt transmission mechanism, and the waterproof motor drives all the spiral screws to rotate synchronously through the belt transmission mechanism.

[0011] As a further solution of the present invention: a waterproof sealing structure is provided in the sealing groove, and the waterproof sealing structure is an inflatable sealing ring fixedly connected in the sealing groove, and an inflation and deflation air pump is fixedly installed on the inner wall of the lower cabin body, and the inflation and deflation air pump is connected to the inflatable sealing ring.

[0012] As a further solution of the present invention: an air pressure balancing valve and a waterproof cable interface are provided on the top of the liftable cabin body, the air pressure balancing valve is used to balance the air pressure inside and outside the cabin, and the waterproof cable interface adopts an elastic sealing sleeve to dynamically seal with the cable.

[0013] As a further solution of the present invention: the side wall of the liftable cabin adopts a double-layer hollow structure, the inner layer is made of aluminum alloy, the interlayer is filled with heat-conducting phase change material, and the outer layer is made of stainless steel.

[0014] As a further solution of the present invention: a remote communication module is provided in the liftable cabin, and the remote communication module uploads water level and equipment status data in real time and receives remote instructions.

[0015] As a further solution of the present invention: a backup power supply module is provided in the fixed base to maintain system operation in the event of a power outage.

[0016] Compared with the prior art, the advantages of the present invention are: This solution uses a water-level monitoring module to monitor the external water level in real time. The control system automatically triggers the lifting mechanism, raising the elevating pod as the water level rises, maintaining a safe height above the flood level to prevent water ingress. Compared to fixed-height flood control measures, this solution can adapt to varying water levels, improving protection reliability and reducing operation and maintenance costs.

[0017] This solution uses a spiral lifting mechanism to drive the cabin to rise and fall vertically. It has a stable structure and strong load-bearing capacity, and the waterproof drive device ensures the sealing and durability of underwater operation.

[0018] This solution will design a hydraulic sealing linkage mechanism for the upper and lower cabins of the liftable cabin to further improve the waterproof reliability and dynamic sealing adaptability. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is one of the structural diagrams of the present invention; Figure 2 This is the second structural diagram of the present invention; Figure 3 Schematic diagram of the structure of the waterproof driving device of the present invention; Figure 4 It is a structural schematic diagram of the liftable cabin of the present invention.

[0020] Description of the numbers in the figure: 1. Fixed base; 2. Liftable cabin; 21. Upper cabin; 22. Lower cabin; 23. Sealing groove; 24. Sealing pressure plate; 25. Hydraulic telescopic rod; 3. Screw lifting mechanism; 31. Screw screw; 32. Threaded sleeve; 33. Sealing ring; 4. Water level monitoring module; 5. Waterproof drive device; 51. Waterproof motor; 52. Belt drive mechanism; 6. Control system; 61. Remote communication module; 62. Backup power supply module; 7. Waterproof sealing structure; 71. Inflatable sealing ring; 72. Inflating and discharging air pump; 8. Air pressure balance valve; 9. Waterproof cable interface. DETAILED DESCRIPTION

[0021] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention; it is obvious that the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention. Example

[0022] See also Figure 1-4 The spiral lifting type flood-proof sealed cabin of the cable branch box includes a fixed base 1, which is fixedly installed on the ground foundation; a liftable cabin body 2 is provided on the top of the fixed base 1, and an installation cavity of the cable branch box is provided inside the liftable cabin body 2; a spiral lifting mechanism 3 is provided on the fixed base 1, and the liftable cabin body 2 is lifted and lowered in a vertical direction through the spiral lifting mechanism 3; a water level monitoring module 4 is provided on the outside of the liftable cabin body 2, and the water level monitoring module 4 is used to monitor the external water level height in real time; a waterproof driving device 5 is provided in the fixed base 1, and the waterproof driving device 5 is connected to the spiral lifting mechanism 3; a control system 6 is provided in the liftable cabin body 2, and the control system 6 is connected to the water level monitoring module 4 and the waterproof driving device 5 by signal, and the control system 6 controls the lifting and lowering action of the spiral lifting mechanism 3 according to the water level data.

[0023] In this embodiment, the water level monitoring module 4 monitors the external water level in real time and transmits this data to the control system 6. When the water level exceeds a preset safety threshold, the control system 6 immediately activates the waterproof drive device 5 to drive the spiral lifting mechanism 3. The spiral lifting mechanism 3, through precision thread transmission, converts rotational motion into vertical lifting motion, propelling the elevating cabin 2 upward. The lifting height is dynamically adjusted based on the water level, ensuring that the cable branch box remains above the flood level to prevent water ingress. After the floodwaters recede, the control system 6 slowly lowers the cabin to its initial position, where it self-locks and secures.

[0024] The elevating cabin 2 is equipped with a remote communication module 61, which uploads real-time water level and equipment status data and receives remote commands. The fixed base 1 is equipped with a backup power module 62 to maintain system operation in the event of a power outage. Example

[0025] This embodiment is a further improvement made on the basis of embodiment 1. Compared with embodiment 1, the liftable cabin 2 includes an upper cabin 21 and a lower cabin 22. A sealing groove 23 is provided on the top of the lower cabin 22. A sealing pressure plate 24 is fixedly connected to the bottom of the upper cabin 21. Hydraulic telescopic rods 25 are equidistantly provided on the inner wall of the lower cabin 22 along the circumferential direction. The two ends of the hydraulic telescopic rods 25 are fixedly connected to the inner walls of the upper cabin 21 and the lower cabin 22 respectively through fixed blocks. A waterproof sealing structure 7 is provided in the sealing groove 23. The waterproof sealing structure 7 is an inflatable sealing ring 71 fixedly connected to the sealing groove 23. An air pump 72 is fixedly installed on the inner wall of the lower cabin 22. The air pump 72 is connected to the inflatable sealing ring 71. During non-flooding periods, the hydraulic telescopic rod 25 allows the upper cabin 21 to be partially or fully raised, creating a natural convection channel between the cabin interior and the external air, facilitating heat dissipation from the cable branch box. During flooding periods, the hydraulic telescopic rod 25 drives the upper cabin 21 downward, allowing the sealing plate 24 to engage the sealing groove 23. The air pump 72 then inflates the inflatable seal ring 71, filling the gap between the sealing plate 24 and the sealing groove 23 and ensuring the sealing of the elevating cabin 2. This embodiment, based on the existing spiral lifting mechanism, designs a hydraulic sealing linkage system for the upper and lower cabins, further enhancing waterproof reliability and dynamic sealing adaptability.

[0026] It should be noted that the sidewalls of the liftable cabin 2 utilize a double-layer hollow structure. The inner layer is made of aluminum alloy, the interlayer is filled with a thermally conductive phase change material, and the outer layer is made of stainless steel. The thermally conductive phase change material can be a paraffin-based PCM. The outer surface can be equipped with heat dissipation fins to increase the heat dissipation area. The inner aluminum alloy layer quickly absorbs heat generated by the cabin's equipment, which is then transferred outward through the highly thermally conductive phase change material interlayer. The outer stainless steel layer conducts the heat to the exterior surface. This design solves the problem of continuous heat dissipation during flooding, even when the cabin is completely sealed.

[0027] Additionally, a pressure-balancing valve 8 and a waterproof cable interface 9 are located on the top of the liftable cabin 2. The pressure-balancing valve 8 balances the internal and external pressures. When the cabin is fully enclosed, heat generated by internal equipment or external temperature fluctuations may cause pressure fluctuations. The pressure-balancing valve 8 automatically adjusts the pressure differential between inside and outside via a one-way or two-way vent membrane. The waterproof cable interface 9 utilizes an elastic sealing sleeve for dynamic sealing with the cable. Example

[0028] This embodiment is a further improvement based on Embodiment 1 or 2. Compared with Embodiment 1 or 2, the spiral lifting mechanism 3 includes at least two sets of symmetrically arranged spiral screws 31. The spiral screws 31 are connected to threaded sleeves 32. The threaded sleeves 32 extend into the interior of the elevating cabin 2 and are fixedly connected to the side wall of the lower cabin 22. The bottom ends of the spiral screws 31 extend into the interior of the fixed base 1 and are connected to the waterproof drive device 5. A sealing ring 33 is provided at the connection between the spiral screws 31 and the fixed base 1. The waterproof drive device 5 includes a waterproof motor 51 and a belt drive mechanism 52. The waterproof motor 51 drives all the spiral screws 31 to rotate synchronously through the belt drive mechanism 52.

[0029] This embodiment provides a follow-up description of the spiral lifting mechanism 3 and the waterproof drive device 5. The spiral lifting mechanism 3 rotates through the waterproof motor 51 of the waterproof drive device 5 and drives all the spiral screws 31 through the belt transmission mechanism 52, thereby driving the threaded sleeve 32 to rise and fall, and then driving the liftable cabin 2 and the internal equipment to rise and fall, ensuring that the cable branch box is always above the flood level to avoid water ingress.

[0030] The above description is merely a preferred embodiment of the present invention; however, the scope of protection of the present invention is not limited thereto. Any person skilled in the art who, within the technical scope disclosed by the present invention, makes equivalent substitutions or modifications based on the technical solutions and improved concepts of the present invention shall be covered by the scope of protection of the present invention.

Claims

1. A spiral lifting type flood-proof sealed cabin for a cable branch box, comprising a fixed base (1), characterized in that: The fixed base (1) is fixedly installed on the ground foundation; A liftable cabin (2) is provided on the top of the fixed base (1), and a mounting cavity for a cable branch box is provided inside the liftable cabin (2); A spiral lifting mechanism (3) is provided on the fixed base (1), and the liftable cabin (2) is lifted and lowered in a vertical direction by the spiral lifting mechanism (3); A water level monitoring module (4) is provided on the outside of the liftable cabin (2), and the water level monitoring module (4) is used to monitor the external water level in real time; A waterproof driving device (5) is provided in the fixed base (1), and the waterproof driving device (5) is connected to the spiral lifting mechanism (3); A control system (6) is provided in the liftable cabin (2), and the control system (6) is signal-connected to the water level monitoring module (4) and the waterproof driving device (5). The control system (6) controls the lifting and lowering action of the spiral lifting mechanism (3) according to water level data.

2. The spiral lifting type flood-proof sealed cabin of the cable branch box according to claim 1 is characterized in that: The liftable cabin (2) comprises an upper cabin (21) and a lower cabin (22), the top of the lower cabin (22) is provided with a circle of sealing grooves (23), the bottom of the upper cabin (21) is fixedly connected with a sealing pressure plate (24), and hydraulic telescopic rods (25) are equidistantly arranged on the inner side wall of the lower cabin (22) along the circumferential direction, and the two ends of the hydraulic telescopic rods (25) are fixedly connected to the inner walls of the upper cabin (21) and the lower cabin (22) respectively through fixing blocks.

3. The spiral lifting type flood-proof sealed cabin of the cable branch box according to claim 2, characterized in that: The spiral lifting mechanism (3) comprises at least two groups of symmetrically arranged spiral screws (31), wherein a threaded sleeve (32) is threadedly connected to the spiral screw (31), and the threaded sleeve (32) extends into the interior of the liftable cabin (2) and is fixedly connected to the side wall of the lower cabin (22). The bottom end of the spiral screw (31) extends into the interior of the fixed base (1) and is connected to the waterproof driving device (5), and a sealing ring (33) is provided at the connection between the spiral screw (31) and the fixed base (1).

4. The spiral lifting type flood-proof sealed cabin of the cable branch box according to claim 3 is characterized in that: The waterproof driving device (5) comprises a waterproof motor (51) and a belt transmission mechanism (52), and the waterproof motor (51) drives all the spiral screws (31) to rotate synchronously via the belt transmission mechanism (52).

5. The spiral lifting type flood-proof sealed cabin of the cable branch box according to claim 2, characterized in that: A waterproof sealing structure (7) is provided in the sealing groove (23), and the waterproof sealing structure (7) is an inflatable sealing ring (71) fixedly connected to the sealing groove (23). An inflation / deflation air pump (72) is fixedly installed on the inner wall of the lower cabin (22), and the inflation / deflation air pump (72) is in communication with the inflatable sealing ring (71).

6. The spiral lifting type flood-proof sealed cabin of the cable branch box according to claim 1, characterized in that: The top of the liftable cabin (2) is provided with an air pressure balancing valve (8) and a waterproof cable interface (9). The air pressure balancing valve (8) is used to balance the air pressure inside and outside the cabin. The waterproof cable interface (9) adopts an elastic sealing sleeve to dynamically seal with the cable.

7. The spiral lifting type flood-proof sealed cabin of the cable branch box according to claim 1, characterized in that: The side wall of the liftable cabin (2) adopts a double-layer hollow structure, the inner layer is made of aluminum alloy, the interlayer is filled with heat-conducting phase change material, and the outer layer is made of stainless steel.

8. The spiral lifting type flood-proof sealed cabin of the cable branch box according to claim 1, characterized in that: A remote communication module (61) is provided in the liftable cabin (2), and the remote communication module (61) uploads water level and equipment status data in real time and receives remote instructions.

9. The spiral lifting type flood-proof sealed cabin of the cable branch box according to claim 1, characterized in that: A backup power supply module (62) is provided in the fixed base (1) to maintain system operation in the event of a power outage.

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