Box-sharing type ring main unit

Abstract

The utility model discloses a common box type ring main unit, which comprises a base, an outer cabinet body is fixed on the upper surface of the base, a ring main unit is placed on the inner side surface of the outer cabinet body, a ceiling is fixed on the upper surface of the outer cabinet body, the ceiling adopts a hollow-structure ceiling body, a first hinge seat is fixed on the inner side surface of the outer cabinet body, and a second hinge seat is fixed on the inner side surface of the outer cabinet body. A first hinge arm is hinged to the upper end of the inner side of the first hinge seat, the outer end surface of the first hinge arm is hinged to the inner side surface of a second hinge seat, the outer end of the second hinge seat is fixed to the surface of a first extrusion plate, and a second hinge arm is hinged to the lower side of the inner end of the first hinge seat; according to the external cabinet body built-in ring main unit structure, an inner side hinge control extrusion structure is adopted, the operation is convenient, the extrusion assembly occupies a small space, the lightning protection assembly is arranged outside, the lightning protection effect is good, and the lightning protection effect is good. The outdoor use safety is improved, and the functionality is improved.

Description

Technical Field

[0001] This utility model relates to the field of shared-enclosure ring main units, and more specifically, to a shared-enclosure ring main unit. Background Technology

[0002] A ring main unit is an electrical device consisting of a set of high-voltage switchgear installed in a metal or non-metal insulated cabinet or assembled into a modular ring main unit. Its core components are load switches and fuses. It has advantages such as simple structure, small size, low price, and the ability to improve power supply parameters and performance as well as power supply safety. It is widely used in substations and box-type substations in load centers such as urban residential areas, high-rise buildings, large public buildings, and factories. However, in the existing technology, the interlocking mechanism of the ring main unit is not connected to the main circuit switch, which makes it impossible to provide safety warnings to the operators. At the same time, the existing technology is not very effective in fixing the ring main unit.

[0003] In the prior art, such as the invention disclosed in application publication number CN112152111A, a locking mechanism and a ring main unit are provided, including a ring main unit body, a sliding door and louvers. The sliding door is installed on the front end face of the ring main unit body, and louvers are fixedly connected to the lower part of the front end face of the sliding door. A locking device is installed on the front end face of the ring main unit body. The locking mechanism and the ring main unit, through the mutual cooperation between the ring main unit body, the sliding door, the louvers and the warning light, can electrically connect the warning light to the main circuit switch through wires. When the main circuit switch is turned on, the warning light can be lit to remind the operator. Through the mutual cooperation between the first rectangular block, the second rectangular block, the first spring and the vertical rod, the first T-shaped plate is pulled, so that the first T-shaped plate stretches the first spring. When the first rectangular block enters the L-groove of the second rectangular block, the first T-shaped plate is released, so that the first T-shaped plate enters the groove of the first rectangular block, thereby fixing the sliding door.

[0004] The ring main unit fixing part in the aforementioned patent uses multiple sets of T-shaped plates to be squeezed and fixed from the outside. Its fixing structure is complex and bulky, and it is not suitable for fixing ring main units with common enclosures. The fixing operation is inconvenient, and its functionality is poor when used outdoors. Utility Model Content

[0005] To address the problems existing in the prior art, the purpose of this utility model is to provide a shared-enclosure ring main unit. By adopting an external cabinet with an internal ring main unit structure, and using an internal hinged control compression structure, it is easy to operate, the compression components occupy little space, and lightning protection components are installed externally to increase outdoor safety and functionality.

[0006] To solve the above problems, the present invention adopts the following technical solution.

[0007] A shared-enclosure ring main unit includes a base, an outer cabinet fixed to the upper surface of the base, a ring main unit placed on the inner surface of the outer cabinet, a canopy fixed to the upper surface of the outer cabinet, the canopy having a hollow structure, a first hinge seat fixed to the inner surface of the outer cabinet, a first hinge arm hinged to the upper inner end of the first hinge seat, the outer end of the first hinge arm hinged to the inner surface of a second hinge seat, the outer end of the second hinge seat fixed to the surface of a first extrusion plate, a second hinge arm hinged to the lower inner end of the first hinge seat, the lower end of the second hinge arm hinged to the inner surface of a third hinge seat, and the outer end of the third hinge seat fixedly connected to the outer surface of the second extrusion plate. The first and second extrusion plates are pressed against the outer surface of the ring main unit. A first H-shaped hinge shaft is inserted into the inner surface of the first hinge arm, and a second H-shaped hinge shaft is inserted into the inner surface of the second hinge arm. A forward threaded rod is threaded to the inner surface of the first H-shaped hinge shaft, and a reverse threaded rod is threaded to the inner surface of the second H-shaped hinge shaft. The forward and reverse threaded rods are fixedly connected to the end face of the torque handle. A lightning rod is installed at the outer end of the canopy. By adopting an external cabinet-integrated ring main unit structure, which uses an internal hinge control extrusion structure, it is easy to operate, the extrusion components occupy little space, and the external lightning protection components increase outdoor safety and functionality.

[0008] Furthermore, a lightning rod is fixed to the inner surface of the base, the lower surface of the lightning rod is attached to the upper surface of the lightning rod, and a hexagonal sleeve is fitted onto the outer surface of the lightning rod. The hexagonal sleeve is threadedly connected to the outer surface of the lightning rod.

[0009] Furthermore, a support base is fixed to the outer side of the canopy, and an insertion hole is provided on the surface of the support base. The outer surface of the lightning rod is inserted into the inner surface of the insertion hole of the support base.

[0010] Furthermore, the lightning rods and lightning detonators are made of steel.

[0011] Furthermore, the extrusion end faces of the first extrusion plate and the second extrusion plate are covered with a rubber layer.

[0012] Furthermore, the surfaces of the first and second hinge arms are provided with circular holes, and the second H-shaped hinge shaft and the first H-shaped hinge shaft are respectively inserted into the inner surface of the corresponding circular holes.

[0013] Furthermore, the surface of the first H-shaped hinge shaft is provided with a forward threaded hole, and the surface of the second H-shaped hinge shaft is provided with a reverse threaded hole.

[0014] Compared with existing technologies, the advantages of this utility model are:

[0015] (1) By adopting the structure of the ring network cabinet built into the outer cabinet, which adopts the inner hinge control extrusion structure, it is easy to operate, the extrusion component occupies little space, and the lightning protection component is set on the outside, which increases the safety of outdoor use and increases functionality. Attached Figure Description

[0016] Figure 1 This is a first schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a second schematic diagram of the overall structure of this utility model;

[0018] Figure 3 This is a cross-sectional view of the overall structure of this utility model;

[0019] Figure 4 This is an enlarged view of point A in this utility model;

[0020] Figure 5 This is a schematic diagram of the first threaded rod and the second threaded rod of this utility model;

[0021] Figure 6 This is a schematic diagram of the second H-shaped hinge shaft of this utility model.

[0022] Explanation of the labels in the diagram:

[0023] 1. Base, 2. Outer cabinet, 3. Ring main unit, 4. Canopy, 5. First hinge seat, 6. First hinge arm, 7. Second hinge seat, 8. First extrusion plate, 9. Second hinge arm, 10. Third hinge seat, 11. Second extrusion plate, 12. First H-shaped hinge shaft, 13. Second H-shaped hinge shaft, 14. Forward threaded rod, 15. Reverse threaded rod, 16. Torque handle, 17. Lightning rod, 18. Lightning attractor rod, 19. Hexagonal recessed sleeve, 170. Support seat. 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

[0026] Please see Figure 1-6A shared-enclosure ring main unit includes a base 1, an outer cabinet 2 fixed to the upper surface of the base 1, a ring main unit 3 placed on the inner surface of the outer cabinet 2, a roof 4 fixed to the upper surface of the outer cabinet 2, the roof 4 having a hollow structure, a first hinge seat 5 fixed to the inner surface of the outer cabinet 2, a first hinge arm 6 hinged to the upper inner end of the first hinge seat 5, the outer end of the first hinge arm 6 hinged to the inner surface of a second hinge seat 7, the outer end of the second hinge seat 7 fixed to the surface of a first extrusion plate 8, a second hinge arm 9 hinged to the lower inner end of the first hinge seat 5, the lower end of the second hinge arm 9 hinged to the inner surface of a third hinge seat 10, and the outer end of the third hinge seat 10 fixedly connected to the outer surface of a second extrusion plate 11. 8 and the second extrusion plate 11 are pressed against the outer surface of the ring main unit 3. The inner surface of the first hinge arm 6 is inserted with a first H-shaped hinge shaft 12, and the inner surface of the second hinge arm 9 is inserted with a second H-shaped hinge shaft 13. The inner surface of the first H-shaped hinge shaft 12 is connected to a forward threaded rod 14 by a thread, and the inner surface of the second H-shaped hinge shaft 13 is connected to a reverse threaded rod 15 by a thread. The forward threaded rod 14 and the reverse threaded rod 15 are fixedly connected to the end face of the torque handle 16. A lightning rod 17 is provided at the outer end of the canopy 4. By adopting an external cabinet-integrated ring main unit structure, which adopts an internal hinge control extrusion structure, it is easy to operate, the extrusion components occupy little space, and the external lightning protection components increase outdoor safety and functionality.

[0027] A lightning rod 18 is fixed on the inner surface of the base 1, and the lower surface of the lightning rod 17 is attached to the upper surface of the lightning rod 18. A hexagonal recess 19 is sleeved on the outer surface of the lightning rod 17, and the hexagonal recess 19 is connected to the outer surface of the lightning rod 18 by threads; this facilitates installation and makes the lightning rod 17 easy to install, remove and replace.

[0028] A support base 170 is fixed on the outer side of the canopy 4. The surface of the support base 170 is provided with through holes. The outer surface of the lightning rod 17 is inserted into the inner surface of the through holes of the support base 170; it can be inserted and positioned, and the support is stable.

[0029] Lightning arrester rod 17 and lightning conductor rod 18 are made of steel; this facilitates lightning attraction and conduction.

[0030] The extrusion end faces of the first extrusion plate 8 and the second extrusion plate 11 are covered with a rubber layer; during extrusion, the friction force can be increased, and no conductive unit is formed with the extrusion plate 8, so the current will not be transmitted to the surface of the ring main unit 3.

[0031] The surfaces of the first hinge arm 6 and the second hinge arm 9 are provided with round holes, and the second H-shaped hinge shaft 13 and the first H-shaped hinge shaft 12 are respectively inserted into the inner surface of the corresponding round holes.

[0032] The surface of the first H-shaped hinge shaft 12 is provided with a forward threaded hole, and the surface of the second H-shaped hinge shaft 13 is provided with a reverse threaded hole; this facilitates the installation of forward and reverse threaded rods.

[0033] In use, a first hinge arm 6 is hinged to the upper inner side of the first hinge seat 5, the outer end surface of the first hinge arm 6 is hinged to the inner surface of the second hinge seat 7, the outer end of the second hinge seat 7 is fixed to the surface of the first extrusion plate 8, a second hinge arm 9 is hinged to the lower inner side of the first hinge seat 5, the lower end of the second hinge arm 9 is hinged to the inner surface of the third hinge seat 10, and the outer end of the third hinge seat 10 is fixedly connected to the outer surface of the second extrusion plate 11. The first extrusion plate 8 and the second extrusion plate 11 are pressed against the outer surface of the ring main unit 3 to form a hinged support structure.

[0034] Furthermore, a first H-shaped hinge shaft 12 is inserted into the inner surface of the first hinge arm 6, and a second H-shaped hinge shaft 13 is inserted into the inner surface of the second hinge arm 9. A forward threaded rod 14 is threadedly connected to the inner surface of the first H-shaped hinge shaft 12, and a reverse threaded rod 15 is threadedly connected to the inner surface of the second H-shaped hinge shaft 13. The forward threaded rod 14 and the reverse threaded rod 15 are fixedly connected to the end face of the torque handle 16. During control, by rotating the torque handle 16, the forward threaded rod 14 can be rotated inside the first H-shaped hinge shaft 12, and the reverse threaded rod 15 can be rotated inside the second H-shaped hinge shaft 13. The first hinge arm 6 and the second hinge arm 9 can be flipped and retracted simultaneously, causing the extrusion plates at their outer ends to be extruded and fixed to the outer surface of the ring main unit 3. The extrusion installation is convenient.

[0035] During disassembly, rotating the torque handle 16 in the opposite direction can cause the forward threaded rod 14 and the reverse threaded rod 15 to rotate in the opposite direction, which can simultaneously cause the first hinge arm 6 and the second hinge arm 9 to expand and flip at the same time, which can cause them to separate and flip, detaching from the surface of the ring main unit 3. Disassembly and assembly are convenient and the operation is easy.

[0036] Furthermore, a lightning rod 18 is fixed to the inner surface of the base 1 (the lightning rod 18 can be inserted into the ground to attract lightning), the lower surface of the lightning rod 17 is attached to the upper surface of the lightning rod 18, and a hexagonal recess 19 is sleeved on the outer surface of the lightning rod 17. The hexagonal recess 19 is connected to the outer surface of the lightning rod 18 by threads. This facilitates installation and makes it easy to install, disassemble, and replace the lightning rod 17. Moreover, the lightning can be guided to the lightning rod 18 by the lightning arrester cylinder 17 and transmitted to the ground to prevent lightning strikes and increase functionality.

[0037] The above description is merely a preferred embodiment of this utility model; however, the protection scope of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in this utility model, based on the technical solution and its improved concept, should be included within the protection scope of this utility model.

Claims

1. A shared-enclosure ring main unit, comprising a base (1), characterized in that: An outer cabinet (2) is fixed to the upper surface of the base (1). A ring main unit (3) is placed on the inner surface of the outer cabinet (2). A canopy (4) is fixed to the upper surface of the outer cabinet (2). The canopy (4) is a hollow structure canopy. A first hinge seat (5) is fixed to the inner surface of the outer cabinet (2). A first hinge arm (6) is hinged to the upper inner side of the first hinge seat (5). The outer end of the first hinge arm (6) is hinged to the inner surface of a second hinge seat (7). The outer end of the second hinge seat (7) is fixed to the surface of a first extrusion plate (8). A second hinge arm (9) is hinged to the lower inner side of the first hinge seat (5). The lower end of the second hinge arm (9) is hinged to the inner surface of a third hinge seat (10). The outer end of the third hinge seat (10) is fixedly connected to the outer surface of the second extrusion plate (11). The first extrusion plate (8) and the second extrusion plate (11) are pressed against the outer surface of the ring main unit (3). The inner surface of the first hinge arm (6) is inserted with a first H-shaped hinge shaft (12). The inner surface of the second hinge arm (9) is inserted with a second H-shaped hinge shaft (13). The inner surface of the first H-shaped hinge shaft (12) is connected with a forward threaded rod (14) by a thread. The inner surface of the second H-shaped hinge shaft (13) is connected with a reverse threaded rod (15) by a thread. The forward threaded rod (14) and the reverse threaded rod (15) are fixedly connected to the end face of the handle (16). The outer end of the canopy (4) is provided with a lightning rod (17).

2. The shared-enclosure ring main unit according to claim 1, characterized in that: A lightning rod (18) is fixed on the inner surface of the base (1), and the lower surface of the lightning rod (17) is attached to the upper surface of the lightning rod (18). A hexagonal sleeve (19) is fitted onto the outer surface of the lightning rod (17), and the hexagonal sleeve (19) is threaded onto the outer surface of the lightning rod (18).

3. The shared-enclosure ring main unit according to claim 1, characterized in that: A support base (170) is fixed on the outside of the canopy (4). The surface of the support base (170) is provided with an insertion hole, and the outer surface of the lightning rod (17) is inserted into the inner surface of the insertion hole of the support base (170).

4. A shared-enclosure ring main unit according to claim 1, characterized in that: The lightning rod (17) and lightning attractor (18) are made of steel.

5. A shared-enclosure ring main unit according to claim 1, characterized in that: The extrusion end faces of the first extrusion plate (8) and the second extrusion plate (11) are covered with a rubber layer.

6. A shared-enclosure ring main unit according to claim 1, characterized in that: The first hinge arm (6) and the second hinge arm (9) are provided with round holes on their surfaces, and their second H-shaped hinge shaft (13) and first H-shaped hinge shaft (12) are respectively inserted into the inner surface of the corresponding round holes.

7. A shared-enclosure ring main unit according to claim 1, characterized in that: The surface of the first H-shaped hinge shaft (12) is provided with a forward threaded hole, and the surface of the second H-shaped hinge shaft (13) is provided with a reverse threaded hole.

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