A high and low voltage switch cabinet that is easy to maintain

Abstract

The present invention discloses a high- and low-voltage switch cabinet that is easy to maintain, including a cabinet body and electrical components arranged in the cabinet body, the cabinet body includes a top plate, a bottom plate, four columns, three side plates and a cabinet door, the top plate and the bottom plate are fixedly arranged at the upper and lower ends of the four columns, and the characteristics are: the three side plates are slidably arranged on the corresponding columns, a mounting plate and a locking member for locking the mounting plate are rotatably arranged in the cabinet body, the mounting plate swings along the opening direction of the cabinet door, the electrical components are arranged on the mounting plate, and support rods for supporting on the ground are rotatably arranged at the upper ends of the mounting plate. The present invention provides a high- and low-voltage switch cabinet that is easy to maintain, has the advantage of convenient maintenance, and solves the problem that the existing high- and low-voltage switch cabinets are inconvenient to maintain.

Description

Technical Field

[0001] The invention relates to the field of power cabinets, and in particular to a high and low voltage switch cabinet that is easy to maintain. Background Art

[0002] As the name suggests, high and low voltage switchgear is equipment for connecting high-voltage or low-voltage cables. Generally, power supply bureaus and substations use high-voltage cabinets, which are then stepped down by transformers and then sent to low-voltage cabinets. The low-voltage cabinets are then sent to distribution boxes for various electricity users. Inside, some protective devices such as switches and circuit breakers are assembled into one electrical device.

[0003] The high and low voltage switch cabinet is a vertical cabinet structure as a whole, and a cabinet door is connected to the left side of its front face through a hinge; maintenance personnel inspect the electrical components inside the cabinet through the cabinet door; maintenance can only be carried out through the front cabinet door. Due to the small operating space, some electrical components inside the cabinet are easily out of reach, thus affecting maintenance. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide a high and low voltage switch cabinet which is easy to maintain in view of the current status of the prior art, and has the advantage of convenient maintenance, thus solving the problem that the existing high and low voltage switch cabinets are inconvenient to maintain.

[0005] The technical solution adopted by the present invention to solve the above-mentioned technical problems is: a high and low voltage switch cabinet that is easy to maintain, including a cabinet body and electrical components arranged in the cabinet body, the cabinet body includes a top plate, a bottom plate, four columns, three side plates and a cabinet door, the top plate and the bottom plate are fixedly arranged at the upper and lower ends of the four columns, and is characterized in that: the three side plates are slidably arranged on the corresponding columns, a mounting plate and a locking member for locking the mounting plate are rotatably arranged in the cabinet body, the mounting plate swings along the opening direction of the cabinet door, the electrical components are arranged on the mounting plate, and support rods for supporting on the ground are rotatably arranged at both ends of the upper end of the mounting plate.

[0006] As an improvement, the mounting plate is rotatably arranged on the columns on both sides of the cabinet door, and the locking piece is arranged on the columns.

[0007] Further improvement, two support rods are fixedly arranged in the cabinet, the mounting plate is rotatably arranged on the top of the support rod, the locking parts are located on the top plate and the bottom plate, the electrical components are arranged on the two side walls of the mounting plate, and support rods and grab clamps are respectively arranged on the front and rear side walls of the mounting plate, one end of the support rod is rotatably arranged on the mounting plate, and when the support rod is tightly attached to the mounting plate, the grab clamp is used to clamp the other end of the support rod.

[0008] As a further improvement, the cabinet door is rotatably mounted on one of the upright posts, or the cabinet door is rotatably mounted on a side wall of the bottom plate.

[0009] As a further improvement, the side edge of the side plate is formed with an arc-shaped sliding piece, and the column is axially formed with a sliding groove that matches the side edge of the side plate and the sliding piece.

[0010] Further improvement, a wire passing hole is formed in the column along the axial direction, an upper fixed column is fixedly provided at the upper end of the wire passing hole, and a lower fixed column is fixedly provided at the lower end of the wire passing hole, and a driving column and a driven column arranged oppositely are rotatably provided on the inner side wall of the side plate, the driving column is transmission-connected with a driving motor, and a large wheel and a small wheel arranged concentrically are formed on the driving column and the driven column, respectively, one end of the first pull rope is fixedly connected to the upper fixed column of the column on one side of the side plate, the first pull rope passes around the bottom of the large wheel of the driving column, and then passes around the top of the large wheel of the driven column, and finally the other end of the first pull rope is fixedly connected to the lower fixed column of the column on the other side of the side plate, one end of the second pull rope is fixedly connected to the lower fixed column of the column on one side of the side plate, the second pull rope passes around the top of the small wheel of the driving column, and then passes around the bottom of the small wheel of the driven column, and finally the other end of the second pull rope is fixedly connected to the upper fixed column of the column on the other side of the side plate.

[0011] As a further improvement, a cooling channel is formed axially in the column, and a plurality of cooling holes are spaced apart on the side wall of the column opposite to the inner cavity of the cabinet. The cooling channel is connected to a cold air generator located at the bottom or top of the cabinet through a pipeline.

[0012] As a further improvement, an incremental channel connected to the cold air generator is formed in the column along the axial direction, the inner and outer ends of the cooling hole are respectively trumpet-shaped structures opening outward, and an annular channel wrapped around the cooling hole is formed in the middle section of each cooling hole in the column, a conical channel connected to each other is formed between the annular channel and the middle section of the cooling hole, and the side of the annular channel is connected to the incremental channel.

[0013] Compared with the prior art, the advantages of the present invention are: when the high and low voltage switch cabinets need to be repaired, first, the cabinet door is rotated to open, and the three side panels are slid upwards, and the three side panels are passed through the top of the cabinet and fixed, so that the three sides of the cabinet are open to the outside; then, the locking piece is released, the mounting plate is rotated, and the support rods at both ends of the mounting plate are supported on the ground, and the mounting plate is in a flat state. At this time, the electrical components are completely exposed to the maintenance personnel, thereby facilitating maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of a high and low voltage switch cabinet that is easy to maintain in an embodiment of the present invention;

[0015] Figure 2 It is a schematic diagram of the installation structure between the column and the side plate in an embodiment of the present invention;

[0016] Figure 3 yes Figure 2A local enlarged schematic diagram of the middle A;

[0017] Figure 4 Schematic diagram of the sliding structure of the side plate in the embodiment of the present invention. DETAILED DESCRIPTION

[0018] The present invention is further described in detail below with reference to the accompanying drawings.

[0019] like Figures 1 to 4 As shown, the high and low voltage switch cabinet that is easy to maintain in this embodiment includes a cabinet body 1, electrical components 31, a mounting plate 3, a locking piece, a support rod 32, a support rod, a cold air generator, a first pull rope 61, a second pull rope 62, a driving column 71, a driven column 72, a large wheel 81, a small wheel 82, and a driving motor.

[0020] Among them, the cabinet body 1 includes a top plate, a bottom plate 13, four columns 2, three side plates 11 and a cabinet door 12. The top plate and the bottom plate 13 are fixedly arranged at the upper and lower ends of the four columns 2. The three side plates 11 are slidably arranged on the corresponding columns 2. A mounting plate 3 is rotatably arranged in the cabinet body 1. A locking member for locking the mounting plate 3 is arranged in the cabinet body 1. The mounting plate 3 swings along the opening direction of the cabinet door 12. The electrical components 31 are arranged on the mounting plate 3. Support rods 32 for supporting on the ground are rotatably arranged at both ends of the upper end of the mounting plate 3.

[0021] In the embodiment of the present invention, the mounting plate 3 has two installation positions. First, the mounting plate 3 is installed on the side of the cabinet 1. Specifically, the mounting plate 3 is rotatably arranged on the columns 2 on both sides of the cabinet door 12, and the locking piece is arranged on the columns 2.

[0022] In the second, the mounting plate 3 is installed in the middle of the cabinet 1, and two support rods are fixedly arranged in the cabinet 1. The mounting plate 3 is rotatably arranged on the top of the support rods, and the locking parts are located on the top plate and the bottom plate 13. The electrical components 31 are arranged on the two side walls of the mounting plate 3, and the front and rear side walls of the mounting plate 3 are respectively provided with a support rod 32 and a grab clamp. One end of the support rod 32 is rotatably arranged on the mounting plate 3. When the support rod 32 is tightly attached to the mounting plate 3, the grab clamp is used to clamp the other end of the support rod 32.

[0023] In the first structure, the electrical component 31 can only be installed on the front side of the mounting plate 3. In the second structure, in addition to being installed on the front side of the mounting plate 3, the electrical component 31 can also be installed on the back side of the mounting plate 3, thereby increasing the installation quantity and installation space of the electrical component 31. At the same time, the mounting plate 3 can also realize forward rotation and reverse rotation, so that during the maintenance process, the electrical component 31 on the front side of the mounting plate 3 or the electrical component 31 on the back side of the mounting plate 3 is directly above.

[0024] Furthermore, in an embodiment of the present invention, the traditional cabinet door has a variety of settings. The cabinet door 12 is rotatably set on one of the columns 2, which is the same as the traditional cabinet door 12 setting; or, the cabinet door 12 is rotatably set on the side wall of the bottom plate 13. During maintenance, the cabinet door 12 lies flat on the ground, further reducing the impact of the cabinet door 12 on maintenance; or the cabinet door 12 can be designed to have the same sliding structure as the side panel 11, but in this way, during the rotation of the mounting plate 3, since the side panel 11 cannot completely slide away from the top of the cabinet body 1, there is a certain interference between the top of the mounting plate 3 and the nearest cabinet door 12, and the height of the mounting plate must be lowered.

[0025] Furthermore, in order to improve the sliding effect of the side panel 11, an arc-shaped sliding piece 111 is formed on the side of the side panel 11, and a sliding groove 24 that is compatible with the side of the side panel 11 and the sliding piece 111 is formed axially in the column 2, wherein the arc-shaped sliding piece 111 and the arc-shaped wall portion of the sliding groove 24 have a tightening effect on the side of the side panel 11, providing better positioning and guiding effect for the sliding of the side panel 11, avoiding shaking of the side panel 11, and improving the sliding stability of the side panel 11.

[0026] In addition, in order to realize the automatic sliding control of the side plate 11, a wire hole 23 is formed in the column 2 along the axial direction, an upper fixed column 51 is fixedly arranged at the upper end of the wire hole 23, and a lower fixed column 52 is fixedly arranged at the lower end of the wire hole 23. A driving column 71 and a driven column 72 arranged opposite to each other are rotatably arranged on the inner wall of the side plate 11. The driving column 71 is connected to a driving motor for transmission. A large wheel 81 and a small wheel 82 arranged concentrically are formed on the driving column 71 and the driven column 72, respectively. One end of the first pull rope 61 is fixedly connected to the upper fixed column 51 of the column 2 located on one side of the side plate 11. , the first pull rope 61 passes around the bottom of the large wheel 81 of the driving column 71, and then passes around the top of the large wheel 81 of the driven column 72, and finally the other end of the first pull rope 61 is fixedly connected to the lower fixed column 52 of the column 2 on the other side of the side plate 11, and one end of the second pull rope 62 is fixedly connected to the lower fixed column 52 of the column 2 on one side of the side plate 11, and the second pull rope 62 passes around the top of the small wheel 82 of the driving column 71, and then passes around the bottom of the small wheel 82 of the driven column 72, and finally the other end of the second pull rope 62 is fixedly connected to the upper fixed column 51 of the column 2 on the other side of the side plate 11. When the driving motor rotates forward, the driving column 71 and the driven column 72 drive the side plate 11 to slide upward through the first pull rope 61 and the second pull rope 62; conversely, when the driving motor rotates reversely, the side plate 11 slides downward.

[0027] When the high and low voltage switch cabinets need to be repaired, first, the cabinet door 12 is rotated to open, and the three side panels 11 are slid upwards. The three side panels 11 pass through the top of the cabinet body 1 and are fixed, so that the three sides of the cabinet body 1 are open to the outside; then, the locking piece is released, the mounting plate 3 is rotated, and the support rods 32 at both ends of the mounting plate 3 are supported on the ground, and the mounting plate 3 is in a flat state. At this time, the electrical components 31 are completely exposed to the maintenance personnel, so as to facilitate maintenance.

[0028] In addition, in order to realize cooling inside the cabinet 1, in combination with the cabinet 1 structure of the present invention, in the embodiment of the present invention, a cooling channel 21 is formed in the column 2 along the axial direction, and a plurality of cooling holes 22 are spaced apart on the side wall of the column 2 opposite to the inner cavity of the cabinet 1, and the cooling channel 21 is connected to the cold air generator located at the bottom or top of the cabinet 1 through a pipeline. The cold air generated by the cold air generator is sent into the cooling channel 21 of the four columns 2, and the cold air in the cooling channel 21 diffuses from the cooling hole 22 into the cabinet 1 to realize cooling.

[0029] At the same time, in order to improve the diffusion effect of cold air, an incremental channel 27 connected to the cold air generator is formed along the axial direction in the column 2. The inner and outer ends of the cooling hole 22 are respectively trumpet-shaped structures opening outward. An annular channel 26 wrapped around the cooling hole 22 is formed in the middle section of each cooling hole 22 in the column 2. A conical channel 25 that is interconnected is formed between the annular channel 26 and the middle section of the cooling hole 22, and the side of the annular channel 26 is connected to the incremental channel 27. The diameter of the cooling channel 21 is much larger than the incremental channel 27. When the cold air is fed into the cooling channel 21, the cold air is also fed into the incremental channel 27. The cold air entering from the incremental channel 27 passes through the tapered channel 25, enters the cooling hole 22, and diffuses outward from the trumpet-shaped opening of the cooling hole 22. When the cold air enters the middle section of the cooling hole 22 from the tapered channel 25, the cold air is throttled to form a high-speed flow, and a low-pressure area is formed in the middle section of the cooling hole 22, which is conducive to more cold air being sucked into the cooling hole 22 from the cooling channel 21, thereby improving the diffusion effect of the cold air in the cabinet 1.

Claims

1. A high and low voltage switch cabinet that is easy to maintain, comprising a cabinet body (1) and an electrical component (31) arranged in the cabinet body (1), the cabinet body (1) comprising a top plate, a bottom plate (13), four columns (2), three side plates (11) and a cabinet door (12), the top plate and the bottom plate (13) are fixedly arranged at the upper and lower ends of the four columns (2), characterized in that: The three side panels (11) are slidably arranged on the corresponding upright posts (2); a mounting plate (3) and a locking member for locking the mounting plate (3) are rotatably arranged in the cabinet body (1); the mounting plate (3) swings along the opening direction of the cabinet door (12); the electrical component (31) is arranged on the mounting plate (3); and support rods (32) for supporting on the ground are rotatably arranged at both ends of the upper end of the mounting plate (3); Two support rods are fixedly arranged in the cabinet (1); the mounting plate (3) is rotatably arranged on the top of the support rod; the locking piece is located on the top plate and the bottom plate (13); the electrical component (31) is arranged on the two side walls of the mounting plate (3); a support rod (32) and a gripping clamp are respectively arranged on the front and rear side walls of the mounting plate (3); one end of the support rod (32) is rotatably arranged on the mounting plate (3); when the support rod (32) is tightly attached to the mounting plate (3), the gripping clamp is used to clamp the other end of the support rod (32); A wire hole (23) is formed in the column (2) along the axial direction, an upper fixed column (51) is fixedly arranged at the upper end of the wire hole (23), and a lower fixed column (52) is fixedly arranged at the lower end of the wire hole (23). A driving column (71) and a driven column (72) arranged opposite to each other are rotatably arranged on the inner wall of the side plate (11). The driving column (71) is connected to a driving motor in a transmission manner. A large wheel (81) and a small wheel (82) arranged concentrically are formed on the driving column (71) and the driven column (72), respectively. One end of the first pull rope (61) is fixedly connected to the upper fixed column (51) of the column located on one side of the side plate (11). The first pull rope (61) 1) After passing through the bottom of the large wheel (81) of the driving column and then passing through the top of the large wheel (81) of the driven column (72), the other end of the first pull rope (61) is fixedly connected to the lower fixed column (52) of the column on the other side of the side plate (11), and one end of the second pull rope (62) is fixedly connected to the lower fixed column (52) of the column on one side of the side plate (11). After the second pull rope (62) passes through the top of the small wheel (82) of the driving column and then passing through the bottom of the small wheel (82) of the driven column (72), the other end of the second pull rope (62) is fixedly connected to the upper fixed column (51) of the column (2) on the other side of the side plate (11).

2. The high and low voltage switch cabinet that is easy to maintain according to claim 1 is characterized in that: The cabinet door (12) is rotatably mounted on one of the upright posts (2), or the cabinet door (12) is rotatably mounted on a side wall of the bottom plate (13).

3. The high and low voltage switch cabinet that is easy to maintain according to claim 1 is characterized in that: The side edge of the side plate (11) is formed with an arc-shaped sliding piece (111), and the column (2) is formed with a sliding groove (24) along the axial direction to match the side edge of the side plate (11) and the sliding piece.

4. The high and low voltage switch cabinet that is easy to maintain according to claim 3 is characterized in that: A cooling channel (21) is formed in the column (2) along the axial direction, and a plurality of cooling holes (22) are spaced apart on the side wall of the column (2) opposite to the inner cavity of the cabinet (1). The cooling channel (21) is connected to a cold air generator located at the bottom or top of the cabinet (1) through a pipeline.

5. The high and low voltage switch cabinet that is easy to maintain according to claim 4 is characterized in that: An incremental channel (27) connected to the cold air generator is formed in the column (2) along the axial direction, and the inner and outer ends of the cooling hole (22) are respectively in the form of trumpet-shaped structures opening outwards. An annular channel (26) wrapped around the cooling hole (22) is formed in the middle section of each cooling hole (22) in the column (2), and a conical channel (25) connected to each other is formed between the annular channel (26) and the middle section of the cooling hole (22), and the side of the annular channel (26) is connected to the incremental channel (27).

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