Draw-out type circuit breaker cabinet

Abstract

The utility model discloses a drawable circuit breaker cabinet, which comprises a circuit breaker cabinet body and a mounting plate, the mounting plate is arranged in the inner cavity of the circuit breaker cabinet body, and the front side of the mounting plate is provided with a fixed frame. Through cooperative use of a limiting device, a limiting block, an extrusion hole, a spring and a limiting groove, the problems that an existing circuit breaker cabinet is widely applied to the fields of industry, business, residence and the like and is one of important equipment in an electric power system, a mounting plate is usually arranged in the circuit breaker cabinet, a circuit breaker is mounted on the mounting plate through a bolt, and the mounting plate is inconvenient to mount are solved. Generally, the position of the mounting plate is fixed in an inner cavity of a circuit breaker cabinet body and cannot be moved, when the circuit breaker fails and needs to be maintained, a maintainer needs to stretch the head into the inner cavity of the cabinet body, due to insufficient light in the cabinet body, the light needs to be supplemented by a lighting fixture at any time during maintenance, and the maintenance mode is not convenient enough to operate. However, electrical elements and a circuit breaker in an existing circuit breaker cabinet body are not provided with components which can be conveniently pulled out for maintenance.

Description

Technical Field

[0001] The utility model belongs to the technical field of circuit breaker cabinets, and in particular relates to a withdrawable circuit breaker cabinet. Background Art

[0002] A circuit breaker is an electrical device used to protect a circuit. It can automatically cut off the current when an overload, short circuit or other fault is detected in the circuit to prevent fire or damage to the equipment. A circuit breaker cabinet refers to an equipment box in which multiple circuit breakers are installed. It is usually used for centralized management and control of multiple circuits in a power system. To sum up, the problems existing in the prior art are: circuit breaker cabinets are widely used in industrial, commercial and residential places, and are one of the important equipment in the power system. A mounting plate is usually provided inside the circuit breaker cabinet, and the circuit breaker is mounted on the mounting plate by bolts. Usually, the mounting plate is fixed to the inner cavity of the circuit breaker cabinet and cannot be moved. When the circuit breaker fails and needs maintenance, the maintenance personnel need to put their heads into the inner cavity of the cabinet. Due to insufficient light inside the cabinet, lighting equipment needs to be used to supplement the light at all times during maintenance. This maintenance method is not convenient to operate, but the electrical components and circuit breakers in the existing circuit breaker cabinet do not have components that can be easily withdrawn for maintenance. Therefore, a withdrawable circuit breaker cabinet is proposed to solve the above problems. Utility Model Content

[0003] In view of the problems existing in the prior art, the utility model provides a withdrawable circuit breaker cabinet, which has the advantage of conveniently withdrawing the electrical components and circuit breakers in the circuit breaker cabinet for maintenance, and solves the problem that the existing circuit breaker cabinet is widely used in industrial, commercial and residential places, and is one of the important equipment in the power system. A mounting plate is usually provided inside the circuit breaker cabinet, and the circuit breaker is mounted on the mounting plate by bolts. Usually, the mounting plate is fixed to the inner cavity of the circuit breaker cabinet and cannot be moved. When the circuit breaker fails and needs maintenance, the maintenance personnel need to put their heads into the inner cavity of the cabinet. Due to insufficient light inside the cabinet, lighting equipment needs to be used to supplement the light at all times during maintenance. This maintenance method is not convenient to operate, but the electrical components and circuit breakers in the existing circuit breaker cabinet do not have components that can be conveniently withdrawn for maintenance.

[0004] The utility model is implemented as follows: a withdrawable circuit breaker cabinet comprises a circuit breaker cabinet body and a mounting plate, wherein the mounting plate is arranged in the inner cavity of the circuit breaker cabinet body, a fixing frame is arranged on the front side of the mounting plate, a circuit breaker is arranged on the front side of the fixing frame, a control groove is opened on the front side of the mounting plate, the inner cavity of the control groove is movably connected with two control shells, opposite sides of the two control shells both penetrate the control groove and extend to the outer side of the inner cavity of the control groove, and limit devices are arranged on the left and right sides of the mounting plate.

[0005] As a preferred embodiment of the utility model, the limit device includes two limit blocks, the surfaces of the limit blocks are provided with extrusion holes, and the opposite sides of the two limit blocks are fixedly connected with springs. By setting the limit device, when the mounting plate is moved to the inner cavity of the circuit breaker cabinet, the limit device has a limiting effect on the position of the mounting plate.

[0006] As a preferred embodiment of the utility model, the left and right sides of the mounting plate are fixedly connected with a stabilizing frame, the front side of the limit block is fixedly connected with a stabilizing block used in conjunction with the stabilizing frame, the surface of the stabilizing block is in contact with the inner cavity of the stabilizing frame, and the opposite sides of the two springs are fixedly connected to the surface of the stabilizing frame. By setting the stabilizing frame and the stabilizing block, when the limit block moves, the stabilizing block can be driven to move along the inner cavity of the stabilizing frame, and the coordinated use of the stabilizing block and the stabilizing frame has a limiting effect on the moving position of the limit block.

[0007] As a preferred embodiment of the utility model, the front side of the stabilizing frame is movably connected to two extrusion rotating shells used in conjunction with the extrusion holes through a rotating shaft, and the surfaces of the extrusion rotating shells are movably connected to the inner cavity of the extrusion hole. The rear side of the control shell is fixedly connected to an extrusion block used in conjunction with the extrusion rotating shell, and the surface of the extrusion block is movably connected to the inner cavity of the extrusion rotating shell. By setting the extrusion rotating shell and the extrusion block, the control shell is pulled to drive the extrusion block to move along the inner cavity of the extrusion rotating shell, and the extrusion block can generate an extrusion force on the extrusion rotating shell, and the extrusion rotating shell subjected to the extrusion force will move along the inner cavity of the extrusion hole through the rotating shaft.

[0008] As a preferred embodiment of the utility model, the left and right sides of the mounting plate are fixedly connected with moving rods used in conjunction with the control shell, the inner cavity of the control shell is in contact with the surface of the moving rod, and by setting the moving rod, the control shell is pulled to drive the control shell to move along the surface of the moving rod, and the setting of the moving rod has a limiting effect on the moving position of the control shell.

[0009] As a preferred embodiment of the utility model, a movable shell is fixedly connected to the left and right sides of the inner cavity of the circuit breaker cabinet, the surface of the limit block is in contact with the surface of the movable shell, and two movable blocks used in conjunction with the movable shell are fixedly connected to the left and right sides of the mounting plate, and the surfaces of the movable blocks are movably connected to the inner cavity of the movable shell. By arranging the movable shell and the movable blocks, when the mounting plate moves, the movable blocks will be driven to move along the inner cavity of the movable shell, and the coordinated use of the movable blocks and the movable shell has a limiting effect on the moving position of the mounting plate.

[0010] As a preferred embodiment of the utility model, the top and bottom of the inner cavity of the movable shell are provided with limit grooves used in conjunction with the limit blocks, and the surface of the limit block is in contact with the inner cavity of the limit groove. By setting the limit groove, when the mounting plate is completely moved into the inner cavity of the circuit breaker cabinet, the control shell is released, and the restoring force generated by the spring restoring its shape will drive the limit block to be stuck into the inner cavity of the limit groove. The coordinated use of the limit block and the limit groove has a limiting effect on the position of the mounting plate.

[0011] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0012] 1. The utility model solves the problem that the existing circuit breaker cabinet is widely used in industrial, commercial and residential places by setting a limit device, a limit block, an extrusion hole, a spring and a limit groove. The circuit breaker cabinet is one of the important equipment in the power system. A mounting plate is usually arranged inside the circuit breaker cabinet, and the circuit breaker is mounted on the mounting plate by bolts. Usually, the mounting plate is fixed to the inner cavity of the circuit breaker cabinet and cannot be moved. When the circuit breaker fails and needs to be repaired, the maintenance personnel need to put their heads into the inner cavity of the cabinet. Due to the lack of light inside the cabinet, lighting equipment needs to be used to supplement the light at all times during maintenance. This maintenance method is not convenient to operate, but there is a problem that the electrical components and circuit breakers in the existing circuit breaker cabinet do not have components that can be easily withdrawn for maintenance.

[0013] 2. The utility model sets a limit device. When the extrusion hole is subjected to the extrusion force of the extrusion rotating shell, the limit block will be driven to move. When the limit block moves, it will drive the stabilizing block to move along the inner cavity of the stabilizing frame. When the limit block moves, the force generated will cause the spring to undergo elastic deformation. The restoring force generated by the spring restoring its shape will drive the limit block to be stuck into the inner cavity of the limit groove. The limit device has a limiting effect on the position of the mounting plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of a three-dimensional structure provided by an embodiment of the utility model;

[0015] Figure 2 It is a partial three-dimensional cross-sectional view of a circuit breaker cabinet provided by an embodiment of the utility model;

[0016] Figure 3 This is a three-dimensional schematic diagram of the connection between the moving shell, the moving block and the mounting plate provided by the embodiment of the utility model;

[0017] Figure 4 The utility model embodiment provides Figure 3 A partial enlarged view of point A in the middle.

[0018] In the figure: 1. circuit breaker cabinet; 2. mounting plate; 3. fixing frame; 4. circuit breaker; 5. control slot; 6. control shell; 7. limit device; 701. limit block; 702. extrusion hole; 703. spring; 8. stabilizing frame; 9. stabilizing block; 10. extrusion rotating shell; 11. extrusion block; 12. moving rod; 13. moving shell; 14. moving block; 15. limit slot. DETAILED DESCRIPTION

[0019] In order to further understand the content, features and effects of the present invention, the following embodiments are given as examples and described in detail with reference to the accompanying drawings.

[0020] The structure of the utility model is described in detail below in conjunction with the accompanying drawings.

[0021] like Figures 1 to 4 As shown, a withdrawable circuit breaker cabinet provided by an embodiment of the utility model comprises a circuit breaker cabinet body 1 and a mounting plate 2, wherein the mounting plate 2 is arranged in the inner cavity of the circuit breaker cabinet body 1, a fixing frame 3 is arranged on the front side of the mounting plate 2, a circuit breaker 4 is arranged on the front side of the fixing frame 3, a control slot 5 is opened on the front side of the mounting plate 2, two control shells 6 are movably connected to the inner cavity of the control slot 5, opposite sides of the two control shells 6 both penetrate the control slot 5 and extend to the outer side of the inner cavity of the control slot 5, and limiting devices 7 are arranged on the left and right sides of the mounting plate 2.

[0022] refer to Figure 4 The limiting device 7 includes two limiting blocks 701 , and the surfaces of the limiting blocks 701 are provided with extrusion holes 702 . The opposite sides of the two limiting blocks 701 are fixedly connected with springs 703 .

[0023] With the above solution, by providing the limiting device 7 , when the mounting plate 2 moves to the inner cavity of the circuit breaker cabinet 1 , the limiting device 7 has a limiting effect on the position of the mounting plate 2 .

[0024] refer to Figure 4 The left and right sides of the mounting plate 2 are fixedly connected with a stabilizing frame 8, the front side of the limiting block 701 is fixedly connected with a stabilizing block 9 used in conjunction with the stabilizing frame 8, the surface of the stabilizing block 9 contacts the inner cavity of the stabilizing frame 8, and the opposite sides of the two springs 703 are fixedly connected with the surface of the stabilizing frame 8.

[0025] The above solution is adopted: by setting the stabilizing frame 8 and the stabilizing block 9, when the limit block 701 moves, the stabilizing block 9 can be driven to move along the inner cavity of the stabilizing frame 8. The coordinated use of the stabilizing block 9 and the stabilizing frame 8 has a limiting effect on the moving position of the limit block 701.

[0026] refer to Figure 4The front side of the stabilizing frame 8 is movably connected to two extrusion rotating shells 10 used in conjunction with the extrusion hole 702 through a rotating shaft, and the surface of the extrusion rotating shells 10 is movably connected to the inner cavity of the extrusion hole 702. The rear side of the control shell 6 is fixedly connected to an extrusion block 11 used in conjunction with the extrusion rotating shell 10, and the surface of the extrusion block 11 is movably connected to the inner cavity of the extrusion rotating shell 10.

[0027] The above scheme is adopted: by setting the extrusion rotating shell 10 and the extrusion block 11, pulling the control shell 6, driving the extrusion block 11 to move along the inner cavity of the extrusion rotating shell 10, the extrusion block 11 can generate an extrusion force on the extrusion rotating shell 10, and the extrusion rotating shell 10 subjected to the extrusion force will move along the inner cavity of the extrusion hole 702 through the rotating shaft.

[0028] refer to Figure 4 The left and right sides of the mounting plate 2 are fixedly connected with a moving rod 12 used in conjunction with the control shell 6 , and the inner cavity of the control shell 6 contacts the surface of the moving rod 12 .

[0029] The above solution is adopted: by providing the moving rod 12 , the control housing 6 is pulled to drive the control housing 6 to move along the surface of the moving rod 12 . The provision of the moving rod 12 has a limiting effect on the moving position of the control housing 6 .

[0030] refer to Figure 3 The inner cavity of the circuit breaker cabinet 1 is fixedly connected with a moving shell 13, and the left and right sides of the mounting plate 2 are fixedly connected with two moving blocks 14 used in conjunction with the moving shell 13, and the surface of the moving block 14 is movably connected with the inner cavity of the moving shell 13.

[0031] The above solution is adopted: by setting the moving shell 13 and the moving block 14, when the mounting plate 2 moves, the moving block 14 will be driven to move along the inner cavity of the moving shell 13. The coordinated use of the moving block 14 and the moving shell 13 has a limiting effect on the moving position of the mounting plate 2.

[0032] refer to Figure 3 The top and bottom of the inner cavity of the moving shell 13 are both provided with limiting grooves 15 for use with the limiting block 701 , and the surface of the limiting block 701 is in contact with the inner cavity of the limiting groove 15 .

[0033] The above solution is adopted: by setting the limit groove 15, when the mounting plate 2 is completely moved into the inner cavity of the circuit breaker cabinet 1, the control shell 6 is released, and the restoring force generated by the spring 703 restoring its shape will drive the limit block 701 to be stuck into the inner cavity of the limit groove 15. The coordinated use of the limit block 701 and the limit groove 15 has a limiting effect on the position of the mounting plate 2.

[0034] The working principle of this utility model:

[0035] When in use, when it is necessary to conveniently pull out the electrical components and the circuit breaker 4 in the circuit breaker cabinet 1 for maintenance, the operator first pulls the control shell 6 to the opposite side of the two control shells 6, driving the control shell 6 to move along the surface of the moving rod 12. When the control shell 6 moves, it will drive the extrusion block 11 to move along the inner cavity of the extrusion rotating shell 10. The extrusion rotating shell 10 subjected to the extrusion force will rotate along the inner cavity of the extrusion hole 702 through the rotating shaft. When the extrusion hole 702 is subjected to the extrusion force of the extrusion rotating shell 10, it will drive the limit block 701 to move. When the limit block 70 When the mounting plate 2 moves, the stabilizing block 9 will be driven to move along the inner cavity of the stabilizing frame 8. When the limiting block 701 moves, the force generated will cause the spring 703 to be elastically deformed. When the limiting block 701 is out of contact with the inner cavity of the limiting groove 15, the mounting plate 2 can be pulled forward. When the mounting plate 2 moves, the moving block 14 can be driven to move forward along the inner cavity of the moving shell 13. When the mounting plate 2 moves, the circuit breaker 4 and the electrical components can be driven to move out of the inner cavity of the circuit breaker cabinet 1. At this time, the electrical components and the circuit breaker 4 in the circuit breaker cabinet 1 can be easily withdrawn for maintenance.

[0036] In summary, the withdrawable circuit breaker cabinet solves the problem that the existing circuit breaker cabinet is widely used in industrial, commercial and residential places by setting the limit device 7, the limit block 701, the extrusion hole 702, the spring 703 and the limit groove 15. It is one of the important equipment in the power system. The circuit breaker cabinet is usually provided with a mounting plate, and the circuit breaker is mounted on the mounting plate by bolts. Usually, the mounting plate is fixed to the inner cavity of the circuit breaker cabinet and cannot be moved. When the circuit breaker fails and needs to be repaired, the maintenance personnel need to put their heads into the inner cavity of the cabinet. Due to the lack of light inside the cabinet, lighting equipment needs to be used to supplement the light at all times during maintenance. This maintenance method is not convenient to operate, but the electrical components and circuit breakers in the existing circuit breaker cabinet do not have the problem that they can be easily withdrawn for maintenance.

[0037] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0038] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A withdrawable circuit breaker cabinet, comprising a circuit breaker cabinet body (1) and a mounting plate (2), characterized in that: The mounting plate (2) is arranged in the inner cavity of the circuit breaker cabinet (1); a fixing frame (3) is arranged on the front side of the mounting plate (2); a circuit breaker (4) is arranged on the front side of the fixing frame (3); a control slot (5) is opened on the front side of the mounting plate (2); the inner cavity of the control slot (5) is movably connected to two control shells (6); opposite sides of the two control shells (6) penetrate the control slot (5) and extend to the outside of the inner cavity of the control slot (5); and limit devices (7) are arranged on the left and right sides of the mounting plate (2).

2. A withdrawable circuit breaker cabinet according to claim 1, characterized in that: The limiting device (7) comprises two limiting blocks (701), the surfaces of the limiting blocks (701) are provided with extrusion holes (702), and springs (703) are fixedly connected to opposite sides of the two limiting blocks (701).

3. A withdrawable circuit breaker cabinet as claimed in claim 2, characterized in that: The left and right sides of the mounting plate (2) are fixedly connected to a stabilizing frame (8); the front side of the limiting block (701) is fixedly connected to a stabilizing block (9) used in conjunction with the stabilizing frame (8); the surface of the stabilizing block (9) is in contact with the inner cavity of the stabilizing frame (8); and the opposite sides of the two springs (703) are fixedly connected to the surface of the stabilizing frame (8).

4. A withdrawable circuit breaker cabinet as claimed in claim 3, characterized in that: The front side of the stabilizing frame (8) is movably connected to two extrusion rotating shells (10) used in conjunction with the extrusion holes (702) via a rotating shaft, and the surfaces of the extrusion rotating shells (10) are movably connected to the inner cavity of the extrusion holes (702). The rear side of the control shell (6) is fixedly connected to an extrusion block (11) used in conjunction with the extrusion rotating shell (10), and the surface of the extrusion block (11) is movably connected to the inner cavity of the extrusion rotating shell (10).

5. A withdrawable circuit breaker cabinet according to claim 1, characterized in that: The left and right sides of the mounting plate (2) are fixedly connected with moving rods (12) used in conjunction with the control housing (6), and the inner cavity of the control housing (6) is in contact with the surface of the moving rods (12).

6. A withdrawable circuit breaker cabinet as claimed in claim 2, characterized in that: The left and right sides of the inner cavity of the circuit breaker cabinet (1) are fixedly connected to a movable shell (13), the surface of the limit block (701) is in contact with the surface of the movable shell (13), and the left and right sides of the mounting plate (2) are fixedly connected to two movable blocks (14) used in conjunction with the movable shell (13), and the surfaces of the movable blocks (14) are movably connected to the inner cavity of the movable shell (13).

7. A withdrawable circuit breaker cabinet as claimed in claim 6, characterized in that: The top and bottom of the inner cavity of the movable shell (13) are both provided with a limiting groove (15) for use with the limiting block (701), and the surface of the limiting block (701) is in contact with the inner cavity of the limiting groove (15).

Images