Self-gas-filling type ring main unit

Abstract

The utility model discloses a self gas filling type ring main unit, relates to the ring main unit field, and comprises a cable chamber, a gas box is arranged above the cable chamber, an elastic sliding mechanism for fixing a gas filling tank is arranged above the gas box, the elastic sliding mechanism comprises a limiting sliding rack, the limiting sliding rack is fixedly arranged on the upper surface of the gas box, and the limiting sliding rack is fixedly arranged on the upper surface of the gas box. The inflation tank is slidably mounted in the limiting sliding frame, a supporting rotating frame is mounted on the upper surface of the air tank, and a corresponding contraction frame is mounted in the supporting rotating frame. According to the self-gas-filling type ring main unit, when stable and rapid installation operation needs to be carried out, corresponding contraction frames are directly rotated upwards, extension spring rods are made to move at the same time, semicircular supporting rods abut against the top of a gas filling tank to fix the gas filling tank, at the moment, a first semicircular rod can abut against a second semicircular rod, and fixing is completed; due to the design, the operation of replacing the inflation tank is simpler and more convenient, the use stability is improved, and the fixing efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of ring main unit technology, specifically a self-filling gas-filled ring main unit. Background Technology

[0002] Currently, ring main units are commonly used in substations at load centers such as urban residential communities, high-rise buildings, large public buildings, and factories, as well as in prefabricated substations. They offer advantages such as simple structure and small size, improving power supply parameters and performance while enhancing power supply safety. They are typically installed in outdoor enclosures to protect equipment and ensure power continuity.

[0003] In a gas-insulated fully insulated ring main unit, the switching mechanism is sealed in a gas box. When the gas pressure is abnormal, it may cause equipment failure or even safety accidents. Therefore, the pressure in the gas box plays a crucial role.

[0004] To overcome the above-mentioned defects, the prior art (publication number: CN219067670U, Chinese patent application date: 2023-05-23) discloses a fully insulated and fully enclosed inflatable ring main unit, including: a cabinet; a cable tray opened on the top of the cabinet for cable threading; and a sealing mechanism for sealing the cable. The sealing mechanism includes an airbag installed in the cable tray. This utility model can inflate the airbag through the inflation mechanism. When the airbag is not inflated, the cable can easily pass through the cable tray into the cabinet. When the airbag is inflated, the inflated airbag tightly wraps the cable tray around the cable. At the same time, the inflated airbag fills the cable tray, preventing gas in the cabinet from escaping through the gaps between the cable, the airbag, and the cabinet. This solves the problem of poor sealing effect of existing sealing rings and gas escaping through the gaps between cables in the ring main unit.

[0005] While the above problems can be solved, the operation of replacing the air tank is too complicated. Since the air tank needs to be refilled frequently, the complicated fixed operation is not conducive to the convenience of using the equipment and slows down the efficiency of use. At the same time, the existing design cannot perform the corresponding air filling operation when the air tank is low, which makes the equipment lack air for a long time. This cannot guarantee the stability of the transmission voltage and may cause power outages to the connected equipment, resulting in insufficient stability of use. Utility Model Content

[0006] The purpose of this utility model is to provide a self-filling gas ring main unit to solve the problem mentioned in the background art that the operation of replacing the gas tank is too complicated. Since the gas tank needs to be refilled frequently, the complicated fixed operation is not conducive to the convenience of use of the equipment and slows down the efficiency of use. At the same time, the existing design cannot perform the corresponding gas filling operation when the gas tank is low, which makes the equipment lack gas for a long time, which cannot guarantee the stability of the transmission voltage and may cause power outages of connected equipment, resulting in insufficient stability of use.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a self-filling gas-operated ring main unit, including a cable compartment, an air box installed above the cable compartment, and an elastic sliding mechanism for fixing an air tank installed above the air box. The elastic sliding mechanism includes a limiting sliding frame, which is fixedly installed on the upper surface of the air box. The air tank is slidably installed inside the limiting sliding frame. A supporting rotating frame is installed on the upper surface of the air box. A corresponding retraction frame is installed inside the supporting rotating frame, and an extension spring rod is installed inside the corresponding retraction frame. An automatic alarm is installed on the upper surface of the air box, and a meshing transmission mechanism for sliding a triangular sealing block left and right is installed at the other end of the automatic alarm.

[0008] Furthermore, the meshing transmission mechanism includes a docking pipe, which is connected to the interior of the limiting sliding frame. The end opening of the docking pipe is sealed to the top opening of the air box. A mechanism box is installed above the cable chamber, and a secondary box is installed on the top of the mechanism box.

[0009] Furthermore, a fixed drive motor is installed on the top of the air box, and a fixed meshing gear is installed on the outer surface of the output end of the fixed drive motor. The automatic alarm is connected to the inside of the fixed drive motor, and an integrated rotating rod is installed inside the connecting pipe. A driving fixed gear is installed on the side of the integrated rotating rod, and the fixed meshing gear and the driving fixed gear mesh with each other.

[0010] Furthermore, a semi-circular support rod is installed at the end of the extension spring rod, and the rotation position of the semi-circular support rod corresponds to the installation position of the air tank. First semi-circular rods are installed at the left and right ends of the semi-circular support rod, and a corresponding retraction frame is installed on the top of the air tank.

[0011] Furthermore, a second semi-circular rod is installed inside the corresponding retractable frame, and a fitting retractable spring is installed on the outer surface of the second semi-circular rod. The rotation trajectory of the first semi-circular rod abuts against the second semi-circular rod, and the end of the second semi-circular rod passes through and abuts against the interior of the nested frame.

[0012] Furthermore, the lower outer surface of the air tank contacts the inner surface of the limiting sliding frame to form a sliding structure, and the contact surface of the semi-circular support rod is designed as a semi-circular shape. The contact surfaces of the first semi-circular rod and the second semi-circular rod are both semi-circular, and the inner surface of the corresponding retraction frame contacts the end of the fitted retraction spring to form an elastic structure.

[0013] Furthermore, a connecting wire assembly is installed on the outer surface of the integrated rotating rod, and a triangular sealing block is installed at the end of the connecting wire assembly. Sliding inner grooves are opened on both sides of the docking pipe, and the triangular sealing block slides along the inside of the sliding inner groove.

[0014] Compared with the prior art, the beneficial effects of this utility model are: When the self-filling air ring network cabinet needs to be installed stably and quickly, the corresponding retractable frame is rotated upwards, so that the extension spring rod moves at the same time, and the semi-circular support rod abuts against the top of the air tank to fix it. At this time, the first semi-circular rod will also abut against the second semi-circular rod to complete the fixation. This design makes the operation of replacing the air tank more convenient, improves the stability of use and speeds up the efficiency of use.

[0015] Furthermore, when insufficient air pressure is detected inside the air tank, the inflation tank will automatically perform internal inflation, which will trigger the automatic alarm. At the same time, the fixed meshing gear will drive the integrated rotating rod through the fixed gear. The triangular sealing block will slide nested as the connecting line group is continuously contracted until the docking pipe is connected to the top opening of the air tank. This design allows for corresponding inflation when the air tank is low, ensuring that the equipment can be inflated at any time and guaranteeing the stability of the transmission voltage.

[0016] Furthermore, a limiting sliding bracket is designed at the corresponding installation position of the air tank to ensure better installation stability. An intuitive pressure gauge is also designed on the top of the air tank to ensure the intelligent and convenient use of the equipment. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the cable compartment of this utility model;

[0018] Figure 2 This is a three-dimensional structural diagram of the air box of this utility model;

[0019] Figure 3 This is a schematic diagram of the three-dimensional structure of the nested frame of this utility model;

[0020] Figure 4 This is a three-dimensional structural diagram of the air tank of this utility model;

[0021] Figure 5 This is a schematic diagram of the three-dimensional structure of the fixed gear driven by this utility model;

[0022] Figure 6 This is a schematic diagram of the three-dimensional structure of the sliding inner groove of this utility model.

[0023] In the diagram: 1. Cable compartment; 2. Air box; 3. Mechanism box; 4. Secondary box; 5. Air tank; 6. Limiting sliding frame; 7. Supporting rotating frame; 8. Abutting nested frame; 9. Corresponding retraction frame; 10. Extension spring rod; 11. Semicircular support rod; 12. Connecting pipe; 13. First semicircular rod; 14. Second semicircular rod; 15. Engaging retraction spring; 16. Fixed drive motor; 17. Fixed meshing gear; 18. Driving fixed gear; 19. Integrated rotating rod; 20. Connecting wire assembly; 21. Triangular sealing block; 22. Sliding inner groove; 23. Automatic alarm. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Example 1: Please refer to Figures 1-6 The present invention provides the following technical solution: a self-filling gas ring main unit, including a cable chamber 1, an air box 2 installed above the cable chamber 1, and an elastic sliding mechanism for fixing an air tank 5 installed above the air box 2. The elastic sliding mechanism includes a limiting sliding frame 6, which is fixedly installed on the upper surface of the air box 2. The air tank 5 is slidably installed inside the limiting sliding frame 6. A supporting rotating frame 7 is installed on the upper surface of the air box 2. A corresponding retraction frame 9 is installed inside the supporting rotating frame 7. An extension spring rod 10 is installed inside the corresponding retraction frame 9. An automatic alarm 23 is installed on the upper surface of the air box 2. An engagement transmission mechanism for sliding a triangular sealing block 21 left and right is installed at the other end of the automatic alarm 23.

[0026] like Figure 1 , Figure 2 , Figure 3The technical solution shown addresses the problem of overly complex operation for replacing the air tank 5, which is inconvenient and slows down the use of the equipment due to the frequent need for repeated inflation of the air tank 5. The solution discloses that: a semi-circular support rod 11 is installed at the end of the extension spring rod 10, and the rotation position of the semi-circular support rod 11 corresponds to the installation position of the air tank 5. First semi-circular rods 13 are installed at both ends of the semi-circular support rod 11, and a corresponding retraction frame 9 is installed on the top of the air box 2. The interior of the retraction frame 9 is equipped with... The second semicircular rod 14 has an interlocking contraction spring 15 installed on its outer surface. The rotation trajectory of the first semicircular rod 13 abuts against the second semicircular rod 14, and the end of the second semicircular rod 14 passes through and abuts against the interior of the nested frame 8. The lower outer surface of the air tank 5 contacts the inner surface of the limiting sliding frame 6 to form a sliding structure. The contact surface of the semicircular support rod 11 is semicircular. The contact surfaces of the first semicircular rod 13 and the second semicircular rod 14 are both semicircular, and the inner surface of the corresponding contraction frame 9 contacts the end of the interlocking contraction spring 15 to form an elastic structure.

[0027] When a stable clamping of the air tank 5 is required, the air tank 5 is directly slid laterally along the inside of the limiting sliding frame 6 fixedly installed at the corresponding position on the top of the box 2, so that the air tank 5 comes into contact with the outside of the secondary box 4 to complete the initial stable installation. Then, the corresponding retraction frame 9 is rotated along the inside of the support rotating frame 7 fixedly installed at the top of the cable chamber 1, so that the left and right sets of corresponding retraction frames 9 synchronously drive the extension spring rod 10 nested at the top. A semi-circular support rod 11 is fixedly installed on the outer surface of the end of the extension spring rod 10, so the semi-circular support rod 11 rotates along the installation direction of the air tank 5 as it is driven, and the middle semi-circular part The top of the air tank 5 is nested and installed to provide stable support. As the front of the extension spring rod 10 is resisted, it will retract along the interior of the corresponding retraction frame 9 to achieve a suitable fixing force. When the semi-circular support rod 11 moves, the first semi-circular rod 13, which is fixed at both ends, will rotate until it touches the front end of the second semi-circular rod 14. Since the contact surface between the first semi-circular rod 13 and the second semi-circular rod 14 is semi-circular, the second semi-circular rod 14 is pushed out along the top of the corresponding retraction frame 9 and is fixed due to the squeezing action of the interlocking retraction spring 15. This design makes the fixing operation more stable and quick.

[0028] Example 2: Figure 4 , Figure 5 , Figure 6The technical solution shown addresses the problem that existing designs cannot perform corresponding inflation operations when the air box is low on air, resulting in long-term lack of inflation inside the equipment, instability of the transmission voltage, and potential power outages in connected equipment, leading to insufficient operational stability. The solution discloses a meshing transmission mechanism including a docking pipe 12, which is internally connected to the limiting sliding frame 6. The end opening of the docking pipe 12 is sealed to the top opening of the air box 2. A mechanism box 3 is installed above the cable chamber 1, and a secondary box 4 is installed on top of the mechanism box 3. A fixed drive motor 16 is installed on top of the air box 2. A fixed meshing gear 17 is installed on the outer surface of the output end of the fixed drive motor 16. The automatic alarm 23 is connected to the inside of the fixed drive motor 16. An integrated rotating rod 19 is installed inside the connecting pipe 12. A driving fixed gear 18 is installed on the side of the integrated rotating rod 19. The fixed meshing gear 17 and the driving fixed gear 18 mesh with each other. A connecting wire group 20 is installed on the outer surface of the integrated rotating rod 19. A triangular sealing block 21 is installed at the end of the connecting wire group 20. Sliding inner grooves 22 are opened on both sides of the connecting pipe 12. The triangular sealing block 21 slides along the inside of the sliding inner groove 22.

[0029] When the internal gas of the gas tank 2 is insufficient, causing unstable power supply, the gas filling tank 5 will directly trigger the automatic alarm 23 fixedly installed on the top of the gas tank 2. As the automatic alarm 23 moves, the fixed drive motor 16, which is also internally connected, will be simultaneously triggered. When the fixed drive motor 16 operates, it synchronously drives the fixed meshing gear 17 fixedly installed on the outer surface of its output end. When the fixed meshing gear 17 rotates, it meshes with the driving fixed gear 18, which is in contact with its outer surface, and drives it. As the driving fixed gear 18 moves, the integrated rotating rod 19 fixedly installed at the center of the driving fixed gear 18 will rotate synchronously. Since the integrated rotating rod 19 is rotatably installed on the outer surface of the connecting pipe 12 and is in contact with its internal components... Therefore, the integrated rotating rod 19 will rotate stably in a circular motion. As it rotates, the connecting wire group 20 fixedly installed on the outer surface of the integrated rotating rod 19 will extend accordingly. The extension of the connecting wire group 20 will cause the triangular sealing block 21 fixedly installed at the end to be pulled and slide outward inside the docking pipe 12. The sliding of the triangular sealing block 21 is limited and slid along the sliding inner groove 22 opened on both sides inside the docking pipe 12 to ensure the stability of the sliding. When the triangular sealing block 21 slides to the limit position, the docking pipe 12 will directly dock with the opening of the gas box 2 to realize the internal gas transmission and transportation. After the transmission work is completed, the fixed drive motor 16 drives the fixed meshing gear 17 to rotate, so that the triangular sealing block 21 blocks the docking pipe 12.

[0030] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0031] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A self-filling air-filled ring main unit, comprising a cable compartment (1), an air box (2) installed above the cable compartment (1), and an elastic sliding mechanism for fixing an air tank (5) installed above the air box (2); Its features are: The elastic sliding mechanism includes a limiting sliding frame (6), which is fixedly installed on the upper surface of the air box (2). The air tank (5) is slidably installed inside the limiting sliding frame (6). A supporting rotating frame (7) is installed on the upper surface of the air box (2). A corresponding retraction frame (9) is installed inside the supporting rotating frame (7). An extension spring rod (10) is installed inside the corresponding retraction frame (9). An automatic alarm (23) is installed on the upper surface of the air box (2). An engagement transmission mechanism for sliding the triangular sealing block (21) left and right is installed at the other end of the automatic alarm (23).

2. The self-filling gas-operated ring main unit according to claim 1, characterized in that: The meshing transmission mechanism includes a docking pipe (12), and the docking pipe (12) is connected to the inside of the limiting sliding frame (6). The end opening of the docking pipe (12) is sealed to the top opening of the air box (2). A mechanism box (3) is installed above the cable chamber (1), and a secondary box (4) is installed on the top of the mechanism box (3).

3. A self-filling gas-operated ring main unit according to claim 2, characterized in that: A fixed drive motor (16) is installed on the top of the air box (2), and a fixed meshing gear (17) is installed on the outer surface of the output end of the fixed drive motor (16). The automatic alarm (23) is connected to the inside of the fixed drive motor (16), and an integrated rotating rod (19) is installed inside the connecting pipe (12). A driving fixed gear (18) is installed on the side of the integrated rotating rod (19), and the fixed meshing gear (17) meshes with the driving fixed gear (18).

4. A self-filling gas-operated ring main unit according to claim 1, characterized in that: The end of the extension spring rod (10) is equipped with a semi-circular support rod (11), and the rotation position of the semi-circular support rod (11) corresponds to the installation position of the air tank (5). The left and right ends of the semi-circular support rod (11) are equipped with first semi-circular rods (13), and the top of the air box (2) is equipped with a corresponding retraction frame (9).

5. A self-filling gas-operated ring main unit according to claim 4, characterized in that: The corresponding retractable frame (9) is equipped with a second semi-circular rod (14), and a retractable spring (15) is installed on the outer surface of the second semi-circular rod (14). The rotation trajectory of the first semi-circular rod (13) abuts against the second semi-circular rod (14), and the end of the second semi-circular rod (14) passes through the interior of the nested frame (8).

6. A self-filling gas-operated ring main unit according to claim 5, characterized in that: The lower outer surface of the air tank (5) contacts the inner surface of the limiting sliding frame (6) to form a sliding structure, and the contact surface of the semi-circular support rod (11) is semi-circular. The contact surfaces of the first semi-circular rod (13) and the second semi-circular rod (14) are both semi-circular, and the inner surface of the corresponding shrinking frame (9) contacts the end of the fitted shrinking spring (15) to form an elastic structure.

7. A self-filling gas-operated ring main unit according to claim 3, characterized in that: The outer surface of the integrated rotating rod (19) is equipped with a connecting wire assembly (20), and the end of the connecting wire assembly (20) is equipped with a triangular sealing block (21). The two sides of the docking pipe (12) are provided with sliding inner grooves (22), and the triangular sealing block (21) slides along the inside of the sliding inner groove (22).

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