Node cabinet with front and rear cabinet interlocking structure

Abstract

The present invention discloses a node cabinet with a front and rear cabinet interlocking structure, comprising a front cabinet body and a rear cabinet body, wherein the front cabinet body is provided with an operation port and a grounding operation shaft, the rear cabinet body is provided with a cabinet door, a transmission rod is slidably provided on the rear cabinet body, one end of the transmission rod is sleeved with a driving spring, and the other end penetrates the front cabinet body and is provided with a conflicting inclined surface, a push rod is slidably provided on the front cabinet body, the lower end of the push rod is in conflict with the conflicting inclined surface, the upper end of the push rod is formed with a guide inclined surface, the front cabinet body is provided with a guide seat, a guide rod is provided in the guide seat at a position corresponding to the upper end of the push rod, the guide rod is in conflict with the guide inclined surface, the guide rod is sleeved with a conflicting spring, a shielding piece is rotatably provided on the front cabinet body, one end of the shielding piece is provided with a traction groove, and the other end extends toward the operation port, and the guide rod is slidably matched with the traction groove through a guide block. The structure is simple, has a good interlocking effect, and ensures safe use.

Description

Technical Field

[0001] The present invention relates to the technical field of switchgear cabinets, in particular to a node cabinet with a front and rear cabinet interlocking structure. Background Art

[0002] The main function of the switchgear is to open and close, control and protect electrical equipment during the power generation, transmission, distribution and energy conversion process of the power system. The components in the switchgear mainly include circuit breakers, disconnectors, load switches, operating mechanisms, mutual inductors and various protective devices. In some special switchgears, the switchgear has a front cabinet and a rear cabinet. The front cabinet is mainly used for conventional circuit breaker, disconnector or load switch operation, and the rear cabinet is mainly used for quick plug-in to facilitate temporary power supply. In order to ensure safe use, the rear cabinet door can only be opened to draw power after the grounding operating shaft of the front cabinet is closed. At the same time, after the rear cabinet door is opened, the grounding operating shaft is also required not to be opened. However, the existing interlocking structure is unstable, the use effect is poor, and it is not convenient for maintenance and repair. Summary of the Invention

[0003] In view of the deficiencies in the prior art, the present invention provides a node cabinet with a front and rear cabinet interlocking structure, which has a simple structure, good interlocking effect, and ensures safe use.

[0004] In order to achieve the above-mentioned purpose, the present invention provides a node cabinet with a front and rear cabinet interlocking structure, comprising a front cabinet body and a rear cabinet body, wherein the front cabinet body is provided with an operation port and a grounding operation shaft, the rear cabinet body is detachably provided with a cabinet door, a transmission rod is slidably provided on the rear cabinet body, one end of the transmission rod is sleeved with a driving spring for driving the transmission rod to slide out of the rear cabinet body when the cabinet door is opened, and the other end is inserted into the front cabinet body and formed with a resistance inclined surface, a push rod is slidably provided on the front cabinet body along the height direction, and the lower end of the push rod resists The upper end of the push rod is formed with a guide slope, and the front cabinet is provided with a guide seat. The guide seat is provided with a guide rod corresponding to the upper end of the push rod for limiting the grounding trip after the rear door is opened. The guide rod is in contact with the guide slope, and the guide rod is provided with a resistance spring for maintaining the contact between the guide rod and the guide slope. A shielding piece is rotatably provided on the front cabinet, and a traction groove is provided at one end of the shielding piece, and the other end extends toward the operating port. The guide rod slides with the traction groove through a guide block.

[0005] The beneficial effect of such a setting is that, by adopting the above-mentioned scheme, when the rear door is opened, the grounding is in a closed state, so that the rear door can be opened. After the rear door is opened, the transmission rod extends out of the rear cabinet under the action of the driving spring. At the same time, due to the displacement of the transmission rod, the thinnest position of the interference slope moves to the interference position of the top rod. At this time, the top rod moves downward under the action of gravity. At this time, the guide rod interferes with the guide inclined surface under the action of the second interference spring, pulling the shielding piece to swing, thereby blocking the position of the operating port, avoiding accidental operation of the grounding trip when the rear door is opened, causing a safety hazard. After the rear door is closed, the rear door will interfere with the transmission rod, and the transmission rod slides, causing the interference inclined surface to interfere with the sliding of the top rod, causing the top rod to move up, thereby causing the guide inclined surface to interfere with the guide rod, thereby causing the guide rod to slide, driving the shielding piece to rotate, thereby exposing the operating port, and the grounding trip can be operated. Such a setting ensures safe use, avoids accidental operation after the rear door is opened, causing the grounding trip, and ensures the safety of power supply from the back door.

[0006] As a further configuration of the present invention, a conflicting protrusion is provided at the lower end of the push rod, and the conflicting protrusion conflicts with the conflicting inclined surface.

[0007] The beneficial effect of such a setting is that the above scheme makes the interference effect more stable, the structure installation is faster, the interference is convenient, and the use effect is good.

[0008] As a further configuration of the present invention, a guide frame is provided on the front cabinet, and the push rod is slidably engaged with the guide frame.

[0009] The beneficial effect of such an arrangement is that, by adopting the above scheme and the above structure, the sliding guide is stable, has a good use effect, and improves the use stability of the overall structure.

[0010] As a further configuration of the present invention, the front cabinet and the rear cabinet are respectively provided with guide protrusions, the transmission rod is provided with guide grooves, and the guide protrusions are slidably engaged with the guide grooves.

[0011] The beneficial effect of such an arrangement is that, by adopting the above scheme and the above structure, the sliding guide is stable, has a good use effect, and improves the use stability of the overall structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 A schematic diagram of the internal structure of the overall structure of an embodiment of the present invention;

[0013] Figure 2 is a perspective structural diagram of an embodiment of the present invention;

[0014] Figure 3 2 is a transmission structure diagram of the interlocking structure in an embodiment of the present invention. DETAILED DESCRIPTION

[0015] An embodiment of a node cabinet with a front and rear cabinet interlocking structure of the present invention is as follows Figures 1 to 3 As shown: It includes a front cabinet 1 and a rear cabinet 2, the front cabinet 1 is provided with an operation port and a grounding operation shaft 3, the rear cabinet 2 is detachably provided with a cabinet door 21, and a transmission rod 4 is slidably provided on the rear cabinet 2. One end of the transmission rod 4 is provided with a driving spring 41 for driving the transmission rod 4 to slide out of the rear cabinet 2 when the cabinet door 21 is opened, and the other end is inserted into the front cabinet 1 and formed with an interference inclined surface 42. A push rod 5 is slidably provided on the front cabinet 1 along the height direction, and the lower end of the push rod 5 is in contact with the interference inclined surface 42. A guide slope 51 is formed at the upper end, and a guide seat is provided on the front cabinet 1. A guide rod 6 for limiting the grounding trip after the rear door is opened is provided at the upper end position of the guide seat corresponding to the top rod 5. The guide rod 6 is in contact with the guide slope 51, and a contact spring 61 is provided on the guide rod 6 for maintaining the contact between the guide rod 6 and the guide slope 51. A shielding piece 1 is rotatably provided on the front cabinet 7, and a traction groove 71 is provided at one end of the shielding piece 7, and the other end extends toward the operating port. The guide rod 6 slides with the traction groove 71 through a guide block. The beneficial effect of such a setting is that, with the above scheme, when the rear door is opened, the grounding is in the closed state, so that the rear door can be opened. After the rear door is opened, the transmission rod 4 extends out of the rear cabinet 2 under the action of the driving spring 41. At the same time, due to the displacement of the transmission rod 4, the thinnest position of the interference slope 42 moves to the interference position of the top rod 5. At this time, the top rod 5 moves downward under the action of gravity. At this time, the guide rod 6 is in contact with the guide slope 51 under the action of the second interference spring 61, pulling the shielding piece 7 to swing, thereby blocking the operation port. The arrangement avoids the grounding trip switch being operated accidentally when the rear door is opened, which may cause a safety hazard. After the rear door is closed, the rear door will contact the transmission rod 4, and the transmission rod 4 will slide, causing the contact slope 42 to contact the top rod 5 to slide, causing the top rod 5 to move upward, thereby causing the guide slope 51 to contact the guide rod 6, thereby causing the guide rod 6 to slide, driving the shielding piece 7 to rotate, thereby exposing the operating port, and the grounding trip switch can be operated. This arrangement ensures safe use, avoids the grounding trip switch being operated accidentally after the rear door is opened, and ensures the safety of power supply to the rear door.

[0016] As a further configuration of this embodiment, the lower end of the push rod 5 is provided with a conflicting protrusion 52, which conflicts with the conflicting inclined surface 42. The beneficial effect of this configuration is that the above scheme makes the conflicting effect more stable, the structure installation is faster, the conflicting effect is convenient, and the use effect is good.

[0017] As a further configuration of this embodiment, a guide frame 11 is provided on the front cabinet 1, and the push rod 5 slides in cooperation with the guide frame 11. The beneficial effect of this configuration is that the above scheme and the above structure provide stable sliding guide, good use effect, and improve the stability of the overall structure.

[0018] As a further feature of this embodiment, the front cabinet 1 and the rear cabinet 2 are each provided with a guide protrusion, and the transmission rod 4 is provided with a guide groove 43, wherein the guide protrusion slides in engagement with the guide groove 43. This configuration has the beneficial effect of providing stable sliding guidance, good performance, and improved stability of the overall structure.

[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 node cabinet with a front and rear cabinet interlocking structure, comprising a front cabinet body and a rear cabinet body, wherein the front cabinet body is provided with an operation port and a grounding operation shaft, and the rear cabinet body is provided with a detachable cabinet door, characterized in that: A transmission rod is slidingly provided on the rear cabinet body, and one end of the transmission rod is sleeved with a driving spring for driving the transmission rod to slide out of the rear cabinet body when the cabinet door is opened, and the other end is penetrated into the front cabinet body and formed with a resistance inclined surface. A push rod is slidingly provided on the front cabinet body along the height direction, and the lower end of the push rod is abutted against the resistance inclined surface, and the upper end of the push rod is formed with a guide inclined surface. The front cabinet body is provided with a guide seat, and a guide rod for limiting the grounding and opening of the switch after the rear door is opened is provided at a position corresponding to the upper end of the push rod in the guide seat, and the guide rod is abutted against the guide inclined surface, and a resistance spring is sleeved on the guide rod for maintaining the resistance between the guide rod and the guide inclined surface. A shielding piece is rotatably provided on the front cabinet body, and a traction groove is provided at one end of the shielding piece, and the other end extends toward the operating port, and the guide rod slides and cooperates with the traction groove through a guide block.

2. The node cabinet with a front and rear cabinet interlocking structure according to claim 1, characterized in that: The lower end of the push rod is provided with a conflicting protrusion, and the conflicting protrusion conflicts with the conflicting inclined surface.

3. The node cabinet with a front and rear cabinet interlocking structure according to claim 1 or 2, characterized in that: A guide frame is provided on the front cabinet, and the push rod is slidably matched with the guide frame.

4. The node cabinet with a front and rear cabinet interlocking structure according to claim 3, characterized in that: The front cabinet and the rear cabinet are respectively provided with guide protrusions, and the transmission rod is provided with guide grooves, and the guide protrusions are slidably matched with the guide grooves.

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