Totally enclosed cable branch box and ring main unit pile head grounding device

Abstract

The utility model discloses a totally enclosed cable branch box and ring main unit pile head grounding device, which relates to the technical field of ring main units and comprises a ring main unit, the side end of the ring main unit is provided with a heat dissipation port, the heat dissipation port is provided with a dustproof pore plate, the dustproof pore plate is arranged on the outer side of the ring main unit, and the lower end of the dustproof pore plate is provided with a waterproof structure. The waterproof structure comprises a first sealing plate and a floating plate. According to the utility model, the lower end of the dustproof pore plate is provided with the waterproof structure comprising the first sealing plate and the floating plate, and the dustproof pore plate is stably located at the heat dissipation port under the action of self gravity in a normal use state, so that the ring main unit can ventilate and dissipate heat; in rainstorm weather, in the rising process of accumulated water on the ground, the floating plate drives the first sealing plate and the dustproof hole plate to move upwards under the action of buoyancy, so that the first sealing plate covers the heat dissipation opening, external accumulated water is prevented from entering the ring main unit from the heat dissipation opening, and an effective waterproof protection effect is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of ring network cabinets, in particular to a fully enclosed cable branch box and a pile head grounding device for a ring network cabinet. Background Art

[0002] Ring main unit is a group of electrical equipment (high voltage switchgear) installed in a metal or non-metallic insulated cabinet or made into an assembled interval ring main unit. Its core part uses load switches and fuses, which have the advantages of simple structure, small size, low price, improved power supply parameters and performance, and power supply safety. It is widely used in distribution stations and box-type substations in urban residential areas, high-rise buildings, large public buildings, factories and enterprises and other load centers.

[0003] For example, the 10kV fully enclosed cable branch box and the grounding device for the ring network cabinet pile head provided by the patent application number CN202220467669.1 include a ring network cabinet body, a support seat is arranged at the bottom end of the ring network cabinet body, the support seat includes a base, a support frame is arranged on the base, and a support top seat is arranged on the support frame. The bottom end of the ring network cabinet body is provided with a first wire hole, the support top seat is provided with a second wire hole, and the side wall of the support frame is provided with a third wire hole. A plurality of cable pile heads are arranged inside the ring network cabinet body, and a bus is connected between the plurality of cable pile heads. A locking bolt is arranged on each cable pile head corresponding to the bus thread, one end of the bus is connected to a grounding wire, and a grounding clamp is arranged at the bottom end of the grounding wire. This design facilitates the lead-in during the installation of the ring network cabinet body. At the same time, the ground moisture can be isolated through the support seat, thereby improving the service life of the ring network cabinet body.

[0004] Based on the above search, combined with the prior art, it is found that in the prior art, similar to the above disclosed ring main unit, in order to ensure the stable operation of the equipment, it is usually necessary to set a heat dissipation hole on the side of the ring main unit, but in the heavy rain season, for the ring main unit located in a lower position, the accumulated water easily enters the ring main unit from the heat dissipation hole, causing the internal equipment to be soaked by rainwater. Therefore, a fully enclosed cable branch box and a ring main unit pile head grounding device are proposed to improve the above problems. Utility Model Content

[0005] The purpose of the present application is to provide a fully enclosed cable branch box and a ring main unit pile head grounding device to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above purpose, the present application provides the following technical solutions: a fully enclosed cable branch box and a ring network cabinet pile head grounding device, including a ring network cabinet and a switch door hinged to the front end of the ring network cabinet, a plurality of cable pile heads are arranged inside the ring network cabinet, a bus is connected between the plurality of cable pile heads, one end of the bus is connected to a grounding wire, the bottom end of the grounding wire passes through the ring network cabinet, and a grounding clamp is arranged, and a heat dissipation port is arranged at the side end of the ring network cabinet:

[0007] A dustproof plate is provided at the heat dissipation port and is located on the outside of the ring network cabinet;

[0008] A waterproof structure is installed at the lower end of the dustproof hole plate, and the waterproof structure includes a first sealing plate and a floating plate;

[0009] The first sealing plate is fixed to the bottom end of the dustproof hole plate, the floating plate is fixed to the bottom end of the first sealing plate, and the dustproof hole plate and the first sealing plate are both arranged in contact with the outer surface of the ring network cabinet;

[0010] A guide structure is arranged between the first sealing plate and the ring network cabinet.

[0011] As a further supplement to the present solution, the guide structure includes a guide slide column fixed to the side end of the first sealing plate, and a guide sleeve fixed to the outer wall of the ring network cabinet, and the guide sleeve is slidably connected to the outer side of the guide slide column.

[0012] As a further supplement to this solution, the length of the guide sleeve is consistent with the length of the guide slide column.

[0013] As a further supplement to the present solution, a limit stop column is fixed to the outer wall of the ring network cabinet, and the limit stop column is in contact with the bottom surface of the floating plate.

[0014] As a further supplement to the present solution, a dust cover is installed on the outer wall of the ring network cabinet, the dust cover is located on the upper side of the heat dissipation port, and the dust hole plate can slide into the inner side of the dust cover from bottom to top.

[0015] As a further supplement to the present solution, the waterproof structure also includes a second sealing plate, which is located on the inner side of the ring network cabinet and is slidably fitted with the inner wall of the ring network cabinet. The upper end of the second sealing plate passes through the heat dissipation port and is fixed to the first sealing plate.

[0016] In summary, the technical effects and advantages of the utility model are:

[0017] 1. In the utility model, a waterproof structure including a first sealing plate and a floating plate is installed at the lower end of the dustproof hole plate. Under normal use, the dustproof hole plate is stably located at the heat dissipation port under the action of its own gravity, so that the ring network cabinet can be ventilated and dissipated. In heavy rain, when the ground water rises, the floating plate moves up with the first sealing plate and the dustproof hole plate under the action of buoyancy, so that the first sealing plate covers the heat dissipation port, preventing external accumulated water from entering the interior of the ring network cabinet from the heat dissipation port, thereby playing an effective waterproof protection role.

[0018] 2. In the utility model, by arranging a dust cover on the upper side of the heat dissipation port, on the one hand, the dust cover can be used to protect the outer wall of the ring network cabinet at that location, so that it is not easy for debris to adhere to the outer wall, thereby ensuring that the dustproof hole plate can be smoothly moved up in accordance with the surface of the ring network cabinet under the push of the first sealing plate during the process of rising water on the ground; on the other hand, the dust cover can be used to limit the first sealing plate during the process of rising water on the ground. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without paying any creative work.

[0020] Figure 1 Schematic diagram of the overall three-dimensional structure of this embodiment;

[0021] Figure 2 The cutaway structure in this embodiment is shown in FIG. Figure 1 ;

[0022] Figure 3 The cutaway structure in this embodiment is shown in FIG. Figure 2 ;

[0023] Figure 4 is a schematic diagram of the three-dimensional structure of the waterproof structure in this embodiment;

[0024] Figure 5 The figure is a schematic diagram of the connection structure between the ring main unit, the cable pile head, the bus bar and the grounding wire in this embodiment.

[0025] In the figure: 1. Ring network cabinet; 101. Heat dissipation port; 2. Switch door; 3. Dustproof hole plate; 4. Waterproof structure; 41. First sealing plate; 42. Floating plate; 43. Guide slide column; 44. Second sealing plate; 5. Dust cover; 6. Guide sleeve; 7. Limit stop column; 8. Cable pile head; 9. Bus; 10. Grounding wire; 11. Grounding clamp. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] Example: Reference Figure 1-5The fully enclosed cable branch box and ring network cabinet pile head grounding device shown in the figure include a ring network cabinet 1 and a switch door 2 hinged to the front end of the ring network cabinet 1. A plurality of cable pile heads 8 are arranged inside the ring network cabinet 1. A bus 9 is connected between the plurality of cable pile heads 8. A grounding wire 10 is connected to one end of the bus 9. The bottom end of the grounding wire 10 passes through the ring network cabinet 1 and is provided with a grounding clamp 11. A heat dissipation port 101 is provided at the side end of the ring network cabinet 1 for ventilation and heat dissipation.

[0028] The grounding clamp 11 is connected to an external grounding device such as a grounding pile, thereby achieving a grounding operation of the ring main unit 1 .

[0029] A dustproof hole plate 3 is provided at the heat dissipation port 101 . The dustproof hole plate 3 is located outside the ring network cabinet 1 . The dustproof hole plate 3 can effectively prevent external debris from entering the inside of the ring network cabinet 1 through the heat dissipation port 101 .

[0030] A waterproof structure 4 is installed at the lower end of the dustproof hole plate 3, and the waterproof structure 4 includes a first sealing plate 41 and a floating plate 42. The first sealing plate 41 is fixed to the bottom end of the dustproof hole plate 3, and the floating plate 42 is fixed to the bottom end of the first sealing plate 41. The dustproof hole plate 3 and the first sealing plate 41 are both arranged in contact with the outer surface of the ring network cabinet 1. A guide structure is arranged between the first sealing plate 41 and the ring network cabinet 1. Specifically, the guide structure includes a guide slide column 43 fixed to the side end of the first sealing plate 41, and a guide sleeve 6 fixed on the outer wall of the ring network cabinet 1, and the guide sleeve 6 is slidably connected to the outer side of the guide slide column 43.

[0031] Based on the coordinated arrangement of the above structure, under normal use, the dustproof hole plate 3 is stably located at the heat dissipation port 101 under the action of its own gravity, so that the ring network cabinet 1 can be ventilated and dissipated; in heavy rain, when the ground water rises, the floating plate 42 moves up with the first sealing plate 41 and the dustproof hole plate 3 under the action of buoyancy, so that the first sealing plate 41 covers the heat dissipation port 101, preventing external accumulated water from entering the interior of the ring network cabinet 1 from the heat dissipation port 101, thereby playing an effective waterproof protection role.

[0032] Among them, the length of the guide sleeve 6 is consistent with the length of the guide slide post 43. Under normal use, the guide slide post 43 is completely located in the guide sleeve 6, and no dust or stains are attached to its surface, so that it can move up smoothly with the first sealing plate 41 during the rising of ground water.

[0033] Among them, Figure 2 As shown, a limit stop column 7 is fixed to the outer wall of the ring main unit 1, and the limit stop column 7 is in contact with the bottom surface of the floating plate 42, which can support the floating plate 42 and effectively prevent the floating plate 42 from being damaged by external force.

[0034] Among them, Figure 1 and Figure 2It is shown that a dust cover 5 is installed on the outer wall of the ring network cabinet 1, the dust cover 5 is located on the upper side of the heat dissipation port 101, and the dust cover 3 can slide into the inner side of the dust cover 5 from bottom to top; on the one hand, the dust cover 5 can be used to protect the outer wall position of the ring network cabinet 1 at this location, so that it is not easy for debris to adhere to the outer wall, thereby ensuring that the dust cover 3 can be smoothly moved up in accordance with the surface of the ring network cabinet 1 under the push of the first sealing plate 41 during the process of rising ground water; on the other hand, the dust cover 5 can be used to limit the first sealing plate 41 during the process of rising ground water.

[0035] Further, such as Figure 3 and Figure 4 It is shown that the waterproof structure 4 also includes a second sealing plate 44, which is located on the inner side of the ring network cabinet 1 and is slidably fitted with the inner wall of the ring network cabinet 1. The upper end of the second sealing plate 44 passes through the heat dissipation port 101 and is fixed to the first sealing plate 41; the second sealing plate 44 cooperates with the first sealing plate 41 to play a double sealing role, and the waterproof performance is better.

[0036] It should be further explained that, in order to ensure the sealing of each structure, a sealing structure similar to a sealing strip may be appropriately provided at the gap, for example, a waterproof sealing strip may be provided between the switch door 2 and the ring network cabinet 1 .

[0037] Working principle of the utility model: under normal use, the dustproof hole plate 3 is stably located at the heat dissipation port 101 under the action of its own gravity, so that the ring network cabinet 1 can be ventilated and dissipated, and the limit stop column 7 is against the bottom surface of the floating plate 42, which can support the floating plate 42 and effectively prevent the floating plate 42 from being damaged by external force; in heavy rain weather, during the process of rising water on the ground, the floating plate 42 moves up with the first sealing plate 41 and the dustproof hole plate 3 under the action of buoyancy, so that the first sealing plate 41 covers the heat dissipation port 101, preventing external accumulated water from entering the interior of the ring network cabinet 1 from the heat dissipation port 101, and playing an effective waterproof protection role; the second sealing plate 44 located on the inner side of the ring network cabinet 1 cooperates with the first sealing plate 41 located on the outer side of the ring network cabinet 1 to play a double sealing role, and the waterproof performance is better.

[0038] Finally, it should be noted that the above is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model shall be included in the protection scope of the present utility model.

Claims

1. A fully enclosed cable branch box and a ring network cabinet pile head grounding device, comprising a ring network cabinet (1) and a switch door (2) hinged to the front end of the ring network cabinet (1), wherein a plurality of cable pile heads (8) are arranged inside the ring network cabinet (1), a bus bar (9) is connected between the plurality of cable pile heads (8), one end of the bus bar (9) is connected to a grounding wire (10), the bottom end of the grounding wire (10) passes through the ring network cabinet (1) and is provided with a grounding clamp (11), and a heat dissipation port (101) is arranged at the side end of the ring network cabinet (1), characterized in that: A dustproof hole plate (3) is provided at the heat dissipation port (101), and the dustproof hole plate (3) is located outside the ring network cabinet (1); A waterproof structure (4) is installed at the lower end of the dustproof hole plate (3), and the waterproof structure (4) includes a first sealing plate (41) and a floating plate (42); The first sealing plate (41) is fixed to the bottom end of the dustproof hole plate (3), the floating plate (42) is fixed to the bottom end of the first sealing plate (41), and the dustproof hole plate (3) and the first sealing plate (41) are both arranged in contact with the outer surface of the ring network cabinet (1); A guide structure is provided between the first sealing plate (41) and the ring main unit (1).

2. The fully enclosed cable branch box and ring main unit pile head grounding device according to claim 1 is characterized in that: The guide structure comprises a guide slide column (43) fixed to the side end of the first sealing plate (41), and a guide sleeve (6) fixed to the outer wall of the ring network cabinet (1), wherein the guide sleeve (6) is slidably sleeved on the outer side of the guide slide column (43).

3. The fully enclosed cable branch box and ring main unit pile head grounding device according to claim 2 is characterized in that: The length of the guide sliding sleeve (6) is consistent with the length of the guide sliding column (43).

4. The fully enclosed cable branch box and ring main unit pile head grounding device according to claim 1 is characterized in that: A limit stop column (7) is fixed to the outer wall of the ring network cabinet (1), and the limit stop column (7) is in contact with the bottom surface of the floating plate (42).

5. The fully enclosed cable branch box and ring main unit pile head grounding device according to claim 1 is characterized in that: A dust cover (5) is installed on the outer wall of the ring network cabinet (1), the dust cover (5) is located on the upper side of the heat dissipation port (101), and the dust cover plate (3) can slide into the inner side of the dust cover (5) from bottom to top.

6. The fully enclosed cable branch box and ring main unit pile head grounding device according to claim 1 is characterized in that: The waterproof structure (4) also includes a second sealing plate (44), which is located on the inner side of the ring network cabinet (1) and is slidably fitted with the inner wall of the ring network cabinet (1), and the upper end of the second sealing plate (44) passes through the heat dissipation port (101) and is fixed to the first sealing plate (41).

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