A ring main unit

Abstract

The present invention discloses a ring network cabinet, comprising a main cabinet and a cabinet door, wherein a door frame is provided on the main cabinet, and a first connecting member and a second connecting member are provided on the left and right sides of the door frame and the cabinet door, respectively, wherein the first connecting member and the second connecting member both comprise a fixed seat and a movable leaf, wherein the fixed seat is fixedly connected to one side of the door frame, and the movable leaf is fixedly connected to the side of the cabinet door, and an axis portion is further provided on the fixed seat, wherein a rotating shaft is elastically connected in the axis portion, and an axis hole is provided on the movable leaf, and an end of the rotating shaft is inserted into the axis hole so as to rotatably connect the movable leaf to the fixed seat, and after the rotating shaft is moved and separated from the axis hole, the movable leaf is disconnected from the fixed seat, and when the movable leaf in the first connecting member or the second connecting member is disconnected from the fixed seat, the cabinet door can be rotated and opened from this side. The beneficial effect of the present invention is that an operator can select the opening direction of the cabinet door according to the usage scenario, which is more convenient.

Description

Technical Field

[0001] The invention belongs to the technical field of power transmission and distribution equipment, and in particular, relates to a ring network cabinet. Background Art

[0002] Ring main unit is a device used in power distribution network. It is usually installed outdoors to achieve connection and switching between multiple power sources. Its main function is to improve the reliability and flexibility of the power system, make the power supply more stable, and be able to quickly isolate faults and restore power supply when faults occur. At present, ring main unit has become an indispensable part of modern power systems.

[0003] The existing ring main unit includes a main cabinet and a cabinet door. After the cabinet door is opened, the relevant electrical equipment can be installed in the main cabinet. In actual use, the cabinet door of the ring main unit can only be opened in a specific direction, which leads to the following problems: (1) Different operators have different preferred operating hands, which makes it inconvenient for operators to choose the cabinet door opening direction according to their needs; (2) To ensure that the cabinet door of the ring main unit can be opened smoothly, the operator needs to place the cabinet door of the ring main unit at a specific angle, which is particularly inconvenient when the space is relatively narrow. Summary of the invention

[0004] The cabinet door of the existing ring main unit can only be opened in a single direction, which cannot be well adapted to specific user groups and specific usage scenarios. To address this problem, the following invention is proposed:

[0005] A ring network cabinet comprises a main cabinet body and a cabinet door. A door frame is provided on the main cabinet body. A first connecting member and a second connecting member are respectively provided on the left and right sides of the door frame and the cabinet door. The first connecting member and the second connecting member both comprise a fixed seat and a movable leaf. The fixed seat is fixedly connected to one side of the door frame. The movable leaf is fixedly connected to the side of the cabinet door. A shaft portion is also provided on the fixed seat. A rotating shaft is elastically connected in the shaft portion. A shaft hole is provided on the movable leaf. The end of the rotating shaft is inserted into the shaft hole so as to rotatably connect the movable leaf to the fixed seat. After the rotating shaft is moved and disengaged from the shaft hole, the movable leaf is disconnected from the fixed seat. When the movable leaf and the fixed seat on one side of the door frame and the cabinet door are disconnected, the cabinet door can be rotatably opened from that side.

[0006] Furthermore, the shaft portion further comprises a mounting hole, the rotating shaft is movably arranged in the mounting hole, and one end thereof is vertically inserted into the shaft hole, and a shaft base plate is provided at the other end, a limit head is threadedly connected at the opening of the mounting hole, and a spring is provided between the shaft base plate and the limit head to elastically connect the two. After the shaft base plate is moved, the rotating shaft moves vertically in the mounting hole, and after the shaft base plate is loosened, the rotating shaft is driven by the spring to return to the initial position, and the end of the rotating shaft is reinserted into the shaft hole.

[0007] Furthermore, a guide groove is provided on the side of the shaft portion, and a protruding head extending outward and passing through the guide groove is provided on the shaft bottom plate, and the protruding head changes the position of the shaft bottom plate after moving along the guide groove.

[0008] Furthermore, a fixing groove and a connecting groove connecting the fixing groove and the guide groove are also provided on the side of the shaft portion. After the protruding head moves along the guide groove and enters the fixing groove from the connecting groove, the rotating shaft is separated from the shaft hole.

[0009] Furthermore, a protruding block is provided on the outer end of the protruding head to facilitate the operator to move the protruding head; a cross groove is also provided on the outer end surface of the limit head, and it can be disassembled and installed using a tool suitable therefor.

[0010] Furthermore, each fixing seat is provided with a shaft and a movable leaf on the upper and lower sides respectively, and the rotating shafts in the two shafts are respectively inserted into the shaft holes on the two movable leaves, so that the movable leaves on the upper and lower sides can be rotated and connected to the fixing seat at the same time.

[0011] Furthermore, the fixing seat is fixedly connected to the door frame via a first fixing nail, and the movable leaf is fixedly connected via a second fixing nail, so the connection is relatively stable and reliable.

[0012] Furthermore, a third connecting member is provided on the upper or lower side of the cabinet door and the door frame, and the third connecting member also includes a fixed seat fixedly connected to the door frame and a movable leaf fixedly connected to the cabinet door. When only the movable leaf in the third connecting member is rotatably connected to the fixed seat, the cabinet door can be flipped upward from the bottom to open, thereby increasing the optional opening direction of the cabinet door.

[0013] The present invention proposes a ring network cabinet, wherein a first connecting member, a second connecting member and a third connecting member are arranged between the cabinet door and the door frame of the main cabinet body, and all the connecting members include a fixed seat fixedly connected to the door frame and a movable leaf fixedly connected to the cabinet door, a shaft portion is arranged on the fixed seat, a rotating shaft is arranged inside the shaft portion, and an axis hole for the end of the rotating shaft to be inserted into is arranged on the movable leaf, and the rotational connection between the movable leaf and the fixed seat can be released by moving the rotating shaft to disengage from the axis hole, and by releasing the connection between the movable leaf and the fixed seat in different connecting members, the operator can realize the cabinet door opening in different directions so as to adapt to actual needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the three-dimensional structure of the ring main unit in the present invention;

[0015] Figure 2 is a schematic diagram of the three-dimensional structure of the first connecting member in the present invention;

[0016] Figure 3 It is a partial structural schematic diagram of the first connecting member in the present invention;

[0017] Figure 4 It is a three-dimensional structural schematic diagram of the rotating shaft and the movable leaf in the present invention.

[0018] The corresponding relationship between the illustrations and component names in the figure is as follows:

[0019] 1. Main cabinet body; 2. First connecting piece; 3. Shaft; 4. Second connecting piece; 5. Third connecting piece; 6. First fixing nail; 7. Second fixing nail; 8. Cross slot; 11. Cabinet door; 12. Door frame; 21. Fixed seat; 22. Movable leaf; 23. Shaft hole; 24. Matching slot; 31. Mounting hole; 32. Rotating shaft; 33. Spring; 34. Limiting head; 35. Shaft bottom plate; 36. Protruding head; 37. Guide slot; 38. Connecting slot; 39. Fixing slot; 40. Protruding block. DETAILED DESCRIPTION

[0020] The technical solution of the present invention will be clearly and completely described below in conjunction with embodiments.

[0021] Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making any creative work should fall within the scope of protection of this application.

[0022] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the numbers used in this way can be interchanged where appropriate, so as to describe the embodiments of the present application described herein.

[0023] In addition, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover non-exclusive inclusions. For example, a process, method, system, product, or apparatus that includes a series of steps or elements is not necessarily limited to those steps or elements explicitly listed, but may include other steps or elements not explicitly listed or inherent to such process, method, product, or apparatus.

[0024] In the present application, the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings. These terms are mainly used to better describe the present invention and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation.

[0025] like Figure 1-Figure 4As shown, it is a preferred embodiment of the present invention, a ring network cabinet, including a main cabinet body 1 and a cabinet door 11, a door frame 12 is provided on the main cabinet body 1, the periphery of the cabinet door 11 is opposite to the door frame 12, and a plurality of first connecting members 2, second connecting members 4, and third connecting members 5 are respectively provided on the left and right sides and the upper side of the door frame 12 and the cabinet door 11, and the first connecting members 2, the second connecting members 4, and the third connecting members 5 all include a fixed seat 21 and a movable leaf 22, the fixed seat 21 is fixedly connected to one side of the door frame 12, and a matching groove 24 for accommodating the movable leaf 22 is also provided on the fixed seat 21, the movable leaf 22 is fixedly connected to the side of the cabinet door 11, and a shaft portion 3 extending in a direction away from the door frame 12 is also provided on the fixed seat 21, a vertically arranged rotating shaft 32 is elastically connected in the shaft portion 3, and a shaft hole 23 located on the same axis as the rotating shaft 32 is provided on the movable leaf 22, and the shaft hole 23 is adapted to the shape of the end of the rotating shaft 32.

[0026] In this embodiment, if Figure 1-Figure 2 As shown, taking the first connecting member 2 arranged on the left side of the door frame 12 and the cabinet door 11 as an example, after the end of the internal rotating shaft 32 is inserted into the shaft hole 23, the movable leaf 22 is rotatably connected to the fixed seat 21 and cannot be completely separated from the matching groove 24, thereby realizing the rotational connection between the left side of the cabinet door 11 and the door frame 12. Similarly, the second connecting member 4 arranged on the right side of the door frame 12 and the cabinet door 11 can realize the rotational connection between the right side of the cabinet door 11 and the door frame 12, and the third connecting member 5 arranged on the upper side of the door frame 12 and the cabinet door 11 can realize the rotational connection between the upper side of the cabinet door 11 and the door frame 12. When it is necessary to release the rotational connection between the movable leaf 22 and the fixed seat 21, the operator can move the rotating shaft 32 and disengage it from the shaft hole 23, and then the movable leaf 22 is no longer rotationally connected to the fixed seat 21. When only the connecting parts at specific positions are in a connected state, the cabinet door 11 can be opened from different directions. Specifically, when the first connecting part 2, the second connecting part 4, and the third connecting part 5 are respectively in a connected state, it corresponds to the state that the cabinet door 11 can be opened from the right side, the left side, and the bottom side respectively. The operator can select the opening direction of the cabinet door 11 according to actual needs, which is more convenient.

[0027] Furthermore, the shaft portion 3 also includes a vertically extending mounting hole 31, and the mounting hole 31 and the shaft hole 23 are located on the same axis. The rotating shaft 32 is movably and vertically arranged in the mounting hole 31, one end of which is vertically inserted into the shaft hole 23, and the other end is provided with a shaft base plate 35. A limit head 34 is threadedly connected at the opening of the mounting hole 31, and a cross groove 8 is provided on the outer end surface of the limit head 34 to facilitate disassembly by tools. A spring 33 elastically connecting the two is provided between the shaft base plate 35 and the limit head 34. After the shaft base plate 35 is vertically moved, the rotating shaft 32 can be temporarily detached from the shaft hole 23. After loosening the shaft base plate 35, the rotating shaft 32 is driven by the spring 33, and its end will be re-fitted and inserted into the shaft hole 23.

[0028] Furthermore, if Figure 2-Figure 4 As shown, a vertically extending guide groove 37 is also provided on the side of the shaft portion 3, and a protruding head 36 extending outward and passing through the guide groove 37 is also provided on the shaft base plate 35. A vertical bar-shaped protruding block 40 is provided on the outer end of the protruding head 36. The protruding head 36 is pushed by the protruding block 40. The operator can vertically move the protruding head 36 from the outside of the shaft portion 3. After the vertical movement, the protruding head 36 will drive the shaft base plate 35 to move vertically. Furthermore, a fixing groove 39 extending vertically and a connecting groove 38 extending horizontally are also provided on the side of the shaft portion 3. The connecting groove 38 connects the guide groove 37 with the fixing groove 39. The protruding head 36 moves along the guide groove 37 and enters the fixing groove 39 through the connecting groove 38. Then, driven by the spring 33, the protruding head 36 will be engaged with the bottom of the fixing groove 39. At this time, the rotating shaft 32 is completely separated from the shaft hole 23. After that, the movable leaf 22 can be disconnected from the fixing seat 21 without the need for manual operation by the operator.

[0029] Furthermore, an axis portion 3 and a matching groove 24 are respectively provided on the upper and lower sides of each fixed seat 21, and a movable leaf 22 is provided in each matching groove 24. The rotating shafts 32 in the two axis portions 3 are respectively inserted into the axis holes 23 on the two movable leaves 22 from the upper and lower sides, so that the movable leaves 22 on the upper and lower sides can be rotatably connected to the fixed seat 21 at the same time, thereby further improving the stability of the rotational connection between the movable leaf 22 and the fixed seat 21.

[0030] In this embodiment, the fixed seat 21 is fixedly connected to the door frame 12 via a first fixing nail 6, and the movable leaf 22 is fixedly connected via a second fixing nail 7, ensuring that the fixed seat 21 and the movable leaf 22 can remain stable during the rotation and opening process of the cabinet door 11.

[0031] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A ring main unit, comprising a main cabinet (1) and a cabinet door (11), wherein a door frame (12) is provided on the main cabinet (1), characterized in that: A first connecting member (2) and a second connecting member (4) are respectively provided on the left and right sides of the door frame (12) and the cabinet door (11), wherein the first connecting member (2) and the second connecting member (4) both comprise a fixed seat (21) and a movable leaf (22), wherein the fixed seat (21) is fixedly connected to one side of the door frame (12), and the movable leaf (22) is fixedly connected to the side of the cabinet door (11), and a shaft (3) is also provided on the fixed seat (21), and a rotating shaft (3) is elastically connected to the shaft (3). 2), the movable leaf (22) is provided with an axis hole (23), the end of the rotating shaft (32) is inserted into the axis hole (23), so that the movable leaf (22) is rotatably connected to the fixed seat (21), and after the rotating shaft (32) is moved and separated from the axis hole (23), the movable leaf (22) and the fixed seat (21) are disconnected, and when the movable leaf (22) and the fixed seat (21) in the first connecting member (2) or the second connecting member (4) are disconnected, the cabinet door (11) can be rotated and opened from this side; The shaft portion (3) further comprises a mounting hole (31), the rotating shaft (32) being movably disposed in the mounting hole (31), and having one end vertically inserted into the shaft hole (23), and having a shaft base plate (35) disposed at the other end, a limit head (34) being threadedly connected at the opening of the mounting hole (31), and a spring (33) being disposed between the shaft base plate (35) and the limit head (34) for elastically connecting the two; A guide groove (37) is further provided on the side of the shaft portion (3), and a protruding head (36) extending outward and passing through the guide groove (37) is further provided on the shaft base plate (35), wherein the protruding head (36) changes the position of the shaft base plate (35) after moving along the guide groove (37); The side surface of the shaft portion (3) is further provided with a fixing groove (39) and a connecting groove (38) connecting the fixing groove (39) and the guide groove (37); after the protruding head (36) moves along the guide groove (37) and enters the fixing groove (39) from the connecting groove (38), the rotating shaft (32) is separated from the shaft hole (23).

2. The ring main unit according to claim 1, characterized in that: The outer end of the protruding head (36) is also provided with a protruding block (40); and the outer end surface of the limiting head (34) is also provided with a cross groove (8).

3. The ring main unit according to claim 1, characterized in that: Each fixed seat (21) is provided with a shaft portion (3) and a movable leaf (22) on the upper and lower sides, respectively. The rotating shafts (32) in the two shaft portions (3) are respectively inserted into the shaft holes (23) on the two movable leaves (22), so that the movable leaves (22) on the upper and lower sides are rotatably connected to the fixed seat (21) at the same time.

4. The ring main unit according to claim 1, characterized in that: The fixing seat (21) is fixedly connected to the door frame (12) via a first fixing nail (6), and the movable leaf (22) is fixedly connected via a second fixing nail (7).

5. The ring main unit according to claim 1, characterized in that: A third connecting member (5) is also provided on the upper side or the lower side of the cabinet door (11) and the door frame (12), and the third connecting member (5) also comprises a fixing seat (21) fixedly connected to the door frame (12) and a movable leaf (22) fixedly connected to the cabinet door (11).

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