Switch cabinet with rack transmission mechanism

Abstract

The utility model discloses a switch cabinet with a rack transmission mechanism, which comprises a cabinet body, a grounding operation shaft rotationally arranged in the cabinet body, a driving shaft arranged on the cabinet body, a transmission flange arranged on the grounding operation shaft, driving teeth arranged on the driving shaft along the circumferential direction, a rack, a connecting rod, a crank arm and a transmission rod arranged in the cabinet body, one end of the connecting rod is fixedly connected with the rack, the crank arm is connected into the cabinet body in a swinging mode, one supporting arm of the crank arm is rotationally connected with the connecting rod, the other supporting arm of the crank arm is rotationally connected with the transmission rod, the transmission rod is arranged in the height direction of the cabinet body, and the other end of the transmission rod is rotationally connected with the transmission flange. A guide groove and a guide column are arranged between the connecting rod and the cabinet body, and the guide column is in sliding fit with the guide groove. The decoupling strand is simple in structure and reasonable in layout, has good use stability while achieving rack transmission, and effectively prolongs the service life of the decoupling strand.

Description

Technical Field

[0001] The utility model relates to a switch cabinet with a rack transmission mechanism. Background Art

[0002] The grounding switch is an important component in the switch cabinet. When the line where the circuit breaker is located needs to be repaired, after the circuit breaker is opened and the isolating switches on both sides are opened, the grounding switch is closed to release static electricity and form a clear grounding point, ensuring the safety of equipment and maintenance personnel. Even if there is an unexpected call, the electric energy can be introduced into the earth, forcing the switch to trip. At present, in order to improve the reliability of the transmission and the convenience of operation, a rack transmission is used at the operating shaft position to realize the opening and closing of the grounding switch. However, with this structure, due to the high cost of the rack, usually only a certain length of rack is set in the gear matching area. The subsequent part is realized by welding metal strips to realize the transmission of the overall structure. This causes the welding position to become stiff during use. After a period of time, the welding position will deform, bend, and break. The service life is usually only 500 to 1000 times, which does not meet the use requirement of 2000 times of opening and closing, reducing the reliability of the product. Utility Model Content

[0003] In view of the deficiencies of the existing technology, the present invention provides a switch cabinet with a rack transmission mechanism, which has a simple structure and a reasonable layout. While realizing rack transmission, it has good stability in use and effectively extends the service life of the decoupling unit.

[0004] To achieve the above-mentioned purpose, the utility model provides a switch cabinet with a rack transmission mechanism, including a cabinet body, a grounding operating shaft rotatably arranged in the cabinet body, and a driving shaft for operating the grounding switch to open and close the cabinet body. A transmission flange is provided on the grounding operating shaft, and driving teeth are arranged circumferentially on the driving shaft. A rack, a connecting rod, a crank arm and a transmission rod are provided in the cabinet body, and the rack is slidably arranged in the cabinet body along the width direction of the cabinet body and meshes with the driving teeth. One end of the connecting rod is fixedly connected to the rack, and the crank arm is swingably connected to the cabinet body. One of the support arms of the crank arm is rotatably connected to the end of the connecting rod, and the other support arm is rotatably connected to the transmission rod. The transmission rod is arranged along the height direction of the cabinet body, and the other end of the transmission rod is rotatably connected to the transmission flange. A guide groove and a guide column are provided between the connecting rod and the cabinet body, and the guide column slides in cooperation with the guide groove.

[0005] The beneficial effect of this arrangement is that, by virtue of the meshing of the drive teeth and the rack, the rotational motion of the drive shaft is converted into the linear motion of the rack. Next, the crank arm converts the lateral movement of the rack into the up and down movement of the transmission rod, and finally drives the grounding operating shaft to move through the connecting rod. This process greatly simplifies the operating process, allowing the operating mechanism to be centralized, eliminating the need to distribute the operating mechanism in various locations, and significantly improving work efficiency. Furthermore, through the cooperation of the guide groove and the guide column, the stability of the rack position is further improved, ensuring the smooth operation of the structure, reducing the friction loss between the rack and the cabinet body, preventing deformation at the connection between the connecting rod and the rack, and extending the service life of the rack and related components, so that the switch cabinet can always maintain an efficient and reliable working state during long-term operation.

[0006] As a further configuration of the present invention, a rotating sleeve is sleeved on the guide column, and the rotating sleeve is rotatably matched with the guide groove.

[0007] The beneficial effect of such an arrangement is that it further improves the reliability of the rotational connection, has good matching stability, and improves the use effect of the structure.

[0008] As a further configuration of the present invention, the guide groove is arranged on the connecting rod, the guide column is arranged along the height direction of the cabinet, a connecting seat is provided at the position corresponding to the guide column in the cabinet, and both ends of the guide column are fixedly connected to the corresponding connecting seat.

[0009] The beneficial effects of such an arrangement are: such an arrangement makes the structural layout more reasonable, the position stability is strong, the installation is convenient, and the use effect is good.

[0010] As a further configuration of the present invention, a guide groove is provided in the cabinet body at a position corresponding to the rack, and the rack is slidably engaged with the guide groove.

[0011] This arrangement offers the following advantages: as the rack moves along the width of the cabinet under the action of the drive teeth, the guide grooves firmly restrict the rack's path of movement. This effectively reduces rack wobble and offset during sliding, ensuring precise engagement with the drive teeth and maintaining stable transmission, while also preventing transmission failures caused by rack misalignment. Furthermore, the stable sliding state reduces frictional losses between the rack and the cabinet, extending the service life of the rack and related components, ensuring efficient and reliable operation throughout long-term switchgear operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the utility model;

[0013] Figure 2This is a schematic diagram of the transmission relationship arrangement between the drive shaft and the grounding operating shaft in an embodiment of the present utility model;

[0014] Figure 3 This is a partial enlarged view of the rack position in the embodiment of the present utility model. DETAILED DESCRIPTION

[0015] The utility model provides an embodiment of a switch cabinet with a rack transmission mechanism, such as Figures 1 to 3 As shown, it includes a cabinet 1, in which a grounding operating shaft 2 is rotatably provided. The cabinet 1 is also provided with a driving shaft 11 for operating the grounding switch to open and close. The grounding operating shaft 2 is provided with a transmission flange 21, and the driving teeth 12 are arranged circumferentially on the driving shaft 11. The cabinet 1 is provided with a rack 3, a connecting rod 4, a crank arm 5 and a transmission rod 6. The rack 3 is slidably set in the cabinet 1 along the width direction of the cabinet 1 and engages with the driving teeth 12. One end of the connecting rod 4 is fixedly connected to the rack 3, and the crank arm 5 is swingably connected to the cabinet 1. One of the arms of the crank arm 5 is rotatably connected to the end of the connecting rod 4, and the other arm is rotatably connected to the transmission rod 6. The transmission rod 6 is set along the height direction of the cabinet 1, and the other end of the transmission rod 6 is rotatably connected to the transmission flange 21. A guide groove 41 and a guide column 14 are provided between the connecting rod 4 and the cabinet 1, and the guide column 14 slides with the guide groove 41. The beneficial effect of such a setting is that, by virtue of such a setting, the rotational motion of the drive shaft 11 is converted into the linear motion of the rack 3 by virtue of the meshing of the drive tooth 12 and the rack 3. Then, the crank arm 5 converts the lateral movement of the rack 3 into the up and down movement of the transmission rod 6, and finally drives the grounding operating shaft 2 to move through the connecting rod 4. This process greatly simplifies the operation process, so that the operating mechanism can be centralized, and there is no need to distribute the operating mechanism in various places, which significantly improves work efficiency. Furthermore, through the cooperation of the guide groove 41 and the guide column 14, the stability of the position of the rack 3 is further improved, the smooth operation of the structure is ensured, the friction loss between the rack 3 and the cabinet body 1 is reduced, the connection between the connecting rod 4 and the rack 3 is prevented from deformation, the service life of the rack 3 and related components is extended, and the switch cabinet can always maintain an efficient and reliable working state during long-term operation.

[0016] As a further configuration of the present invention, a rotating sleeve 15 is sleeved on the guide column 14, and the rotating sleeve 15 is rotatably engaged with the guide groove 41. This configuration has the beneficial effect of further improving the reliability of the rotating connection, having good matching stability, and improving the use effect of the structure.

[0017] As a further configuration of the present invention, the guide groove 41 is provided on the connecting rod 4, the guide column 14 is provided along the height direction of the cabinet body 1, a connecting seat 13 is provided in the cabinet body 1 at a position corresponding to the guide column 14, and both ends of the guide column 14 are fixedly connected to the corresponding connecting seat 13. The beneficial effects of this configuration are: such configuration has a more reasonable structural layout, strong position stability, convenient installation, and good use effect.

[0018] As a further configuration of the present invention, a guide groove 16 is provided in the cabinet body 1 at a position corresponding to the rack 3, and the rack 3 is slidably engaged with the guide groove 16. The beneficial effect of this configuration is that when the rack 3 moves along the width direction of the cabinet body 1 under the action of the drive teeth 12, the guide groove 16 can firmly limit the movement path of the rack 3, which not only effectively reduces the shaking and offset of the rack 3 during the sliding process, ensuring that it is accurately engaged with the drive teeth 12 and maintaining a stable transmission effect, but also avoids transmission failures caused by the misalignment of the rack 3. At the same time, the stable sliding state can reduce the friction loss between the rack 3 and the cabinet body 1, extend the service life of the rack 3 and related components, and enable the switch cabinet to always maintain an efficient and reliable working state during long-term operation.

[0019] The above example is only one preferred specific example of the present invention. Common changes and substitutions made by those skilled in the art within the scope of the technical solution of the present invention are all included in the protection scope of the present invention.

Claims

1. A switch cabinet with a rack transmission mechanism, comprising a cabinet body, wherein a grounding operating shaft is rotatably provided in the cabinet body, characterized in that: The cabinet is also provided with a driving shaft for operating the earthing switch to open and close, and a transmission flange is provided on the grounding operating shaft. Drive teeth are arranged circumferentially on the drive shaft. A rack, a connecting rod, a crank arm and a transmission rod are provided in the cabinet. The rack is slidably set in the cabinet along the width direction of the cabinet and engages with the drive teeth. One end of the connecting rod is fixedly connected to the rack, and the crank arm is swingably connected to the cabinet. One of the support arms of the crank arm is rotatably connected to the end of the connecting rod, and the other support arm is rotatably connected to the transmission rod. The transmission rod is set along the height direction of the cabinet, and the other end of the transmission rod is rotatably connected to the transmission flange. A guide groove and a guide column are provided between the connecting rod and the cabinet, and the guide column slides in cooperation with the guide groove.

2. The switch cabinet with a rack transmission mechanism according to claim 1, characterized in that: The guide column is also provided with a rotating sleeve, and the rotating sleeve is rotatably matched with the guide groove.

3. The switch cabinet with a rack transmission mechanism according to claim 2, characterized in that: The guide groove is arranged on the connecting rod, the guide column is arranged along the height direction of the cabinet, a connecting seat is arranged at a position corresponding to the guide column in the cabinet, and both ends of the guide column are fixedly connected to the corresponding connecting seat.

4. The switch cabinet with a rack transmission mechanism according to claim 1, characterized in that: A guide groove is provided in the cabinet body at a position corresponding to the rack, and the rack is slidably engaged with the guide groove.

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