Frame assembly of low-cost combined switch cabinet

Abstract

The utility model relates to a frame assembly of a low-cost combined switch cabinet, which comprises four upright posts, a circuit breaker chamber assembly, four lower cross beams, two side cross beams and two upper cross beams, the circuit breaker chamber assembly comprises two mounting beams, a bottom plate, two lower rear plates, a middle rear plate arranged on the two lower rear plates, a door beam plate and an inclined rear plate connected between the middle rear plate and the door beam plate, and a containing cavity used for containing a circuit breaker is formed among the bottom plate, the door beam plate, the inclined rear plate, the middle rear plate and the two lower rear plates. Two side supporting plates are arranged at the positions, corresponding to the two sides of the middle rear plate, of the two stand columns, and bent turnups connected to the two side supporting plates are arranged on the two sides of the middle rear plate respectively. The utility model has the advantages of simple structure, stable and reliable performance, convenience in assembly, high strength and low cost.

Description

Technical Field

[0001] The utility model relates to the technical field of switch cabinets, and particularly relates to a frame assembly of a low-cost combined switch cabinet. Background Art

[0002] The main function of a switch cabinet is to switch on, control and protect electrical equipment during the processes of power generation, power transmission, power distribution and power conversion in a power system. The components inside the switch cabinet mainly include a circuit breaker, a disconnector, a load switch, an operating mechanism, an instrument transformer and various protection devices, etc. It is mainly applicable to various different occasions such as power plants, substations, petrochemical industries, metallurgical rolling mills, light industries, textile industries, factories and mines, residential quarters, high-rise buildings, etc. A switch cabinet includes a frame, a housing arranged on the frame, and a cabinet door arranged on the frame. The structure design of the circuit breaker chamber of the existing switch cabinet frame is complex, the production cost is high, the assembly is relatively cumbersome, and the connection between the upright column of the frame and the circuit breaker chamber is not compact, resulting in poor strength of the overall switch cabinet frame. Summary of the Invention

[0003] The purpose of the utility model is to overcome the defects of the prior art and provide a frame assembly of a low-cost combined switch cabinet with simple structure, stable and reliable performance, convenient assembly and high strength.

[0004] To achieve the above purpose, the utility model adopts a frame assembly of a low-cost combined switch cabinet, which includes four upright columns, a circuit breaker chamber assembly, four lower cross beams arranged at one ends of the four upright columns, two side cross beams arranged between the four upright columns, and two upper cross beams arranged at the other ends of the four upright columns. The circuit breaker chamber assembly includes two mounting beams respectively arranged on two upright columns, a bottom plate arranged on the two mounting beams, two lower rear plates symmetrically arranged on one side of the bottom plate, a middle rear plate arranged on the two lower rear plates, a door beam plate arranged on the two upright columns at a position corresponding to the upper part of the bottom plate, and an inclined rear plate connected between the middle rear plate and the door beam plate. A receiving cavity for placing a circuit breaker is formed between the bottom plate and the door beam plate, the inclined rear plate, the middle rear plate and the two lower rear plates. Two side support plates are arranged on the two upright columns at positions corresponding to both sides of the middle rear plate, and bending flanges connected to the two side support plates are respectively arranged on both sides of the middle rear plate.

[0005] The beneficial effects of the above structure are: the circuit breaker chamber assembly of the frame assembly is assembled by the bottom plate and the door beam plate, the inclined rear plate, the middle rear plate and the two lower rear plates. Assembly personnel can flexibly assemble the bottom plate, the door beam plate, the inclined rear plate, the middle rear plate and the two lower rear plates according to the model of the circuit breaker, which is beneficial to improving the flexibility of construction and has a lower production cost. The support plates play a supporting role for the middle rear plate and can ensure the overall strength of the frame assembly. Therefore, the frame assembly of the switch cabinet has the advantages of simple structure, stable and reliable performance, convenient assembly, high strength and low cost.

[0006] Specifically, two vertical flanges are provided on both sides of the bottom plate and are attached to two mounting beams, and fasteners connected to the two vertical flanges are respectively provided on the two mounting beams. The bottom plate is fixed to the mounting beam through the vertical flanges, which can increase the contact area between the bottom plate and the mounting beam and ensure a more compact connection between the bottom plate and the mounting beam.

[0007] Specifically, four L-shaped brackets are provided at the two ends of the two side crossbeams corresponding to the four columns. One end of the L-shaped bracket is fixed to the column, and the other end of the L-shaped bracket is fixed to the side crossbeam. The L-shaped bracket strengthens the side crossbeam, thereby ensuring a more firm connection between the column and the side crossbeam.

[0008] Specifically, four triangular plates are provided between the four columns and the four lower crossbeams. One end of the triangular plate is fixed to the column, and the other end of the triangular plate is fixed to the lower crossbeam. The triangular plate can play a supporting role, ensure a more firm connection between the four columns and the four lower crossbeams, and is beneficial to improving the overall strength of the switch cabinet frame.

[0009] Specifically, four lifting rings are respectively provided on the two upper crossbeams, and the four lifting rings are distributed in a rectangular array. Four lifting rings distributed in a rectangular array are provided on the upper crossbeam, which is convenient for lifting the frame assembly. Description of the Drawings

[0010] Figure 1 It is a three-dimensional view of an embodiment of the present invention.

[0011] Figure 2 It is a left view of an embodiment of the present invention.

[0012] Figure 3 It is an assembly drawing of the mounting beam and the bottom plate of an embodiment of the present invention. Detailed Embodiment

[0013] Such as Figures 1 to 3As shown in the figure, an embodiment of the utility model is a frame assembly of a low-cost combined switch cabinet, which includes four columns 10, a circuit breaker chamber assembly 20, four lower crossbeams 11 arranged at one ends of the four columns 10, two side crossbeams 12 arranged between the four columns 10, and two upper crossbeams 13 arranged at the other ends of the four columns 10. The circuit breaker chamber assembly 20 includes two mounting beams 21 respectively arranged on two columns 10, a bottom plate 22 arranged on the two mounting beams 21, two lower rear plates 23 symmetrically arranged on one side of the bottom plate 22, a middle rear plate 24 arranged on the two lower rear plates 23, a door beam plate 25 arranged on the two columns 10 at a position corresponding to the upper part of the bottom plate 22, and an inclined rear plate 26 connected between the middle rear plate 24 and the door beam plate 25. A receiving cavity 200 for placing a circuit breaker is formed between the bottom plate 22 and the door beam plate 25, the inclined rear plate 26, the middle rear plate 24, and the two lower rear plates 23. Two side support plates 14 are arranged on the two columns 10 at positions corresponding to both sides of the middle rear plate 24, and bending flanges 241 connected to the two side support plates 14 are respectively arranged on both sides of the middle rear plate 24. Two vertical flanges 221 attached to the two mounting beams 21 are arranged on both sides of the bottom plate 22, and fasteners connected to the two vertical flanges 221 are respectively arranged on the two mounting beams 21. The bottom plate is fixed on the mounting beam through the vertical flanges, which can increase the contact area between the bottom plate and the mounting beam and ensure a more compact connection between the bottom plate and the mounting beam. Four L-shaped brackets 15 are arranged on the four columns 10 at positions corresponding to both ends of the two side crossbeams 12. One end of the L-shaped bracket 15 is fixed on the column 10, and the other end of the L-shaped bracket 15 is fixed on the side crossbeam 12. The L-shaped bracket strengthens the side crossbeam, thereby ensuring a more firm connection between the column and the side crossbeam. Four triangular plates 16 are arranged between the four columns 10 and the four lower crossbeams 11. One end of the triangular plate 16 is fixed on the column 10, and the other end of the triangular plate 16 is fixed on the lower crossbeam 11. The triangular plate can play a supporting role, ensure a more firm connection between the four columns and the four lower crossbeams, and is beneficial to improving the overall strength of the switch cabinet frame. Four lifting rings 17 are respectively arranged on the two upper crossbeams 13, and the four lifting rings 17 are distributed in a rectangular array. Four lifting rings distributed in a rectangular array are arranged on the upper crossbeam, which facilitates the lifting of the frame assembly.

[0014] The circuit breaker chamber assembly of the frame assembly is assembled by the bottom plate, the door beam plate, the inclined rear plate, the middle rear plate, and the two lower rear plates. The assembler can flexibly assemble the bottom plate, the door beam plate, the inclined rear plate, the middle rear plate, and the two lower rear plates according to the model of the circuit breaker, which is beneficial to improving the flexibility of construction and the production cost is lower. The support plate supports the middle rear plate and can ensure the overall strength of the frame assembly. Therefore, the frame assembly of the switch cabinet has the advantages of simple structure, stable and reliable performance, convenient assembly, high strength, and low cost.

Claims

1. A frame assembly of a low-cost modular switch cabinet, characterized in that: The invention comprises four columns, a circuit breaker chamber assembly, four lower beams arranged on one end of the four columns, two side beams arranged between the four columns, and two upper beams arranged on the other end of the four columns. The circuit breaker chamber assembly comprises two mounting beams respectively arranged on the two columns, a bottom plate arranged on the two mounting beams, two lower rear plates symmetrically arranged on one side of the bottom plate, a middle rear plate arranged on the two lower rear plates, a door beam plate arranged on the two columns above the corresponding bottom plates, and an inclined rear plate connected between the middle rear plate and the door beam plate. An accommodating cavity for placing a circuit breaker is formed between the bottom plate and the door beam plate, the inclined rear plate, the middle rear plate, and the two lower rear plates. Two side support plates are arranged on the two columns at the two sides corresponding to the middle rear plate, and bending flanges connected to the two side support plates are respectively arranged on both sides of the middle rear plate.

2. The frame assembly of the low-cost modular switch cabinet according to claim 1 is characterized in that: The bottom plate has two vertical flanges on both sides thereof which are fitted on the two mounting beams, and the two mounting beams are respectively provided with fasteners connected with the two vertical flanges.

3. The frame assembly of the low-cost modular switch cabinet according to claim 1 or 2, characterized in that: Four L-shaped brackets are arranged on the four columns corresponding to the two ends of the two side beams, one end of the L-shaped bracket is fixed on the column, and the other end of the L-shaped bracket is fixed on the side beam.

4. The frame assembly of the low-cost modular switch cabinet according to claim 1 or 2, characterized in that: Four triangular plates are arranged between the four upright posts and the four lower cross beams, one end of the triangular plate is fixed on the upright post, and the other end of the triangular plate is fixed on the lower cross beam.

5. The frame assembly of the low-cost modular switch cabinet according to claim 1 or 2, characterized in that: Four lifting rings are respectively arranged on the two upper cross beams, and the four lifting rings are distributed in a rectangular array.

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