Lower isolation integrated node cabinet with front and rear cabinet interlocking structure

Abstract

The utility model relates to the technical field of switch electric appliance cabinets, in particular to a lower isolation integrated node cabinet with a front and rear cabinet interlocking structure, a mounting plate is arranged in a front cabinet body, a grounding operation shaft is rotatably connected to the mounting plate, a first opening is formed in a position, close to the grounding operation shaft, of a front cabinet door, and a limiting barrel is mounted on the grounding operation shaft; a limiting groove is formed in the limiting barrel; a fixing lock is installed on the installation plate, a key of the fixing lock can open the rear cabinet body at the same time, a second opening is formed in the position, close to a lock hole of the fixing lock, of the front cabinet door, and the key of the fixing lock can only be pulled out after being locked. After the grounding operation shaft rotates to a switching-on position, the fixed lock is unlocked through a key, and a lock cylinder of the fixed lock passes through the limiting groove; the node cabinet has the advantage that the use safety of the node cabinet is improved.

Description

Technical Field

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

[0002] The main function of the node cabinet is to open and close, control and protect electrical equipment during the process of power generation, transmission, distribution and power conversion in the power system. The interior of the node cabinet is mainly equipped with circuit breakers, disconnectors, load switches, operating mechanisms, transformers and various protection devices. Most existing switch cabinets have a front cabinet and a rear cabinet. The front cabinet is mainly used to set the operation of circuit breakers, disconnectors or load switches, and the rear cabinet is mainly used for quick plug-in of temporary power supply. For the safety of the operator, the front cabinet needs to be grounded before the rear cabinet door is opened. The existing node cabinet is usually a set of switches, and it is easy to miss the operation of closing the grounding operation shaft when taking power in an emergency. Summary of the invention

[0003] In order to improve the safety of node cabinet use, the present application provides a lower isolation integrated node cabinet with a front and rear cabinet interlocking structure.

[0004] In a first aspect, the present application provides a lower isolation integrated node cabinet with a front and rear cabinet interlocking structure, which adopts the following technical solution:

[0005] A lower isolation integrated node cabinet with a front and rear cabinet interlocking structure, comprising a front cabinet body and a rear cabinet body, wherein a mounting plate is arranged in the front cabinet body, a grounding operation shaft is rotatably connected to the mounting plate, the front cabinet body comprises a front cabinet door, a first opening is arranged on the front cabinet door near the grounding operation shaft, a limiting barrel is fixedly installed on the grounding operation shaft, and a limiting groove is arranged on the limiting barrel;

[0006] The rear cabinet body includes a rear cabinet door, and a fixed lock is installed on the mounting plate. The key of the fixed lock can also open the rear cabinet door. The front cabinet door is provided with a second opening near the keyhole of the fixed lock, and the key of the fixed lock can be pulled out only after locking; after the grounding operating shaft is rotated to the closing position, the fixed lock is opened by the key, and the lock core of the fixed lock passes through the limiting groove.

[0007] By adopting the above technical solution, the grounding operation shaft is rotated until the limit slot is in the direction of the fixed lock, that is, the grounding operation is performed, and then the key of the fixed lock is turned to make the lock core of the fixed lock pass through the limit slot, the position of the grounding operation shaft is fixed, and the grounding state is maintained, and then the key can be pulled out, and then the rear cabinet door can be opened by the key, so that the interlocking structure of the front cabinet and the rear cabinet can be realized, ensuring safety when using the node cabinet.

[0008] Preferably, the fixed lock is mounted on a horizontal plate, a vertical plate is fixedly connected to a side of the horizontal plate close to the grounding operation shaft, and the vertical plate is fixed to the mounting plate by bolts.

[0009] By adopting the above technical solution and setting the vertical plate, the grounding operation shaft can be protected, and it is not easy to touch the grounding operation shaft and cause operation errors when performing other operations.

[0010] Preferably, the limiting barrel passes through the grounding operation shaft, and a fixing component for fixing the limiting barrel is provided on the grounding operation shaft.

[0011] By adopting the above technical solution, the limit barrel can be fixed on the grounding operating shaft through the fixing component, so that the state of the grounding operating shaft can be better fixed through the limit barrel.

[0012] Preferably, the fixing assembly comprises a clamp arranged on the grounding operation shaft, the clamp is on a side of the limiting barrel away from the first opening, and a fixing block is threadedly connected to the other side of the limiting barrel.

[0013] By adopting the above technical solution, the limit barrel can be fixed by the clamp and the fixing block.

[0014] Preferably, a plurality of prisms are arranged on the grounding operation shaft, and a notch for plugging into the prisms is arranged at the bottom of the limiting barrel.

[0015] By adopting the above technical solution, the notch and the prism are plugged in, so that the limit barrel is not easy to rotate on the grounding operating shaft.

[0016] Preferably, a mounting groove is provided on the prism, and the clamp is plugged into the mounting groove after installation.

[0017] By adopting the above technical solution, the clamp is plugged into the installation groove, so that the position of the clamp is not easy to move, thereby making the limit barrel not easy to slide along the grounding operation axis.

[0018] Preferably, a side of the limiting barrel close to the first opening is opened.

[0019] By adopting the above technical solution, the plugging of the lock core and the limiting groove can be observed through the first opening.

[0020] Preferably, a transparent protective cover is provided on the front cabinet door to cover the second opening.

[0021] By adopting the above technical solution, the protective cover can protect the interlocking structure to prevent accidental contact. The transparent material can also see the structure of the second opening, which is convenient for operation.

[0022] In summary, the present application includes at least one of the following beneficial technical effects:

[0023] 1. Rotate the grounding operation shaft until the limit slot is in the direction of the fixed lock, that is, the grounding operation is performed, and then turn the key of the fixed lock to make the lock core of the fixed lock pass through the limit slot. The position of the grounding operation shaft is fixed and the grounding state is maintained. Then the key can be pulled out, and then the rear cabinet door can be opened with the key. In this way, the interlocking structure of the front cabinet and the rear cabinet can be realized to ensure safety when using the node cabinet.

[0024] 2. By plugging the notch into the prism, the limit barrel is not easy to rotate on the grounding operation shaft; by plugging the clamp into the installation groove, the position of the clamp is not easy to move, so that the limit barrel is not easy to slide along the grounding operation shaft. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a structural schematic diagram of a lower isolated integrated node cabinet with a front and rear cabinet interlocking structure according to Example 1 of the present application.

[0026] Figure 2 It is a structural schematic diagram showing the second opening.

[0027] Figure 3 It is a schematic diagram showing the structure inside the front cabinet.

[0028] Figure 4 yes Figure 3 Enlarged view of part A.

[0029] Figure 5 It is a structural schematic diagram of a limit barrel.

[0030] Figure 6 It is a schematic diagram showing the structure of the clamp.

[0031] Figure 7 It is a structural schematic diagram showing the installation slot.

[0032] Explanation of the accompanying drawings: 1. front cabinet body; 11. front cabinet door; 12. first opening; 13. second opening; 14. protective cover; 2. rear cabinet body; 3. mounting plate; 4. grounding operating shaft; 41. end block; 5. limiting barrel; 51. limiting groove; 52. notch; 6. horizontal plate; 61. vertical plate; 7. fixed lock; 71. lock core; 72. key; 8. clamp; 9. fixing block; 10. prism; 101. mounting groove. DETAILED DESCRIPTION

[0033] The present application is further described in detail below in conjunction with the specific contents. Example

[0034] Example 1

[0035] A lower isolation integrated node cabinet with a front and rear cabinet interlocking structure, such as Figure 1 and Figure 2 As shown, the cabinet comprises a front cabinet 1 and a rear cabinet 2. The front cabinet 1 comprises a front cabinet door 11, and the front cabinet door 11 is provided with a first opening 12 and a second opening 13. Figure 3 and Figure 4 As shown, a mounting plate 3 is provided in the front cabinet 1, and a grounding operation shaft 4 is rotatably connected to the mounting plate 3. The end of the grounding operation shaft 4 is threadedly connected to an end block 41, and the end block 41 is at the first opening 12. Through the first opening 12, the end block 41 can be rotated, thereby rotating the grounding operation shaft 4 to perform the grounding opening and closing work.

[0036] like Figure 4 and Figure 5 As shown, a limiting barrel 5 with an open end passes through the grounding operation shaft 4, and the open end of the limiting barrel 5 faces the end block 41. A plurality of limiting grooves 51 are provided on the side wall of the limiting barrel 5. After the grounding operation shaft 4 is rotated to the closing position, that is, after the grounding operation is performed, the position of the limiting groove 51 is directly above the grounding operation shaft 4, and the limiting groove 51 abuts against the grounding operation shaft 4, so that the position of the grounding operation shaft 4 can be fixed to maintain the closed state.

[0037] like Figure 4 As shown, a horizontal plate 6 is arranged above the grounding operation shaft 4, and a vertical plate 61 is fixedly connected to the horizontal plate 6 near the side of the grounding operation shaft 4, and the vertical plate 61 is fixedly installed on the mounting plate 3 by bolts. A fixed lock 7 is installed on the horizontal plate 6, and the lock core 71 of the fixed lock 7 is vertically downward. The keyhole of the fixed lock 7 is located near the second opening 13, and the key 72 of the fixed lock 7 protrudes out of the second opening 13 after being inserted, and the key 72 of the fixed lock 7 can be pulled out only after being locked. When the closing position of the grounding operation shaft 4 needs to be fixed, the fixed lock 7 is locked, and its lock core 71 passes through the limiting groove 51, so that the position of the grounding operation shaft 4 can be fixed, and then the key 72 is pulled out.

[0038] like Figure 1 As shown, the rear cabinet 2 includes a rear cabinet door (not shown in the figure), which can be opened only by the key 72 of the fixed lock 7. Therefore, when the rear cabinet door needs to be opened, the fixed lock 7 must be locked and the key 72 must be obtained to open the rear cabinet door, thereby realizing the interlocking structure of the front cabinet 1 and the rear cabinet 2. That is, when the rear cabinet door is opened, the grounding operation can be guaranteed, thereby reducing safety hazards and improving the safety of the node cabinet.

[0039] like Figure 4 and Figure 6As shown, a fixing assembly for fixing the limit barrel 5 is provided on the grounding operation shaft 4. The fixing assembly includes a clamp 8 bolted to the grounding operation shaft 4 and a fixing block 9 threaded to the grounding operation shaft 4. When installing the limit barrel 5, firstly install the clamp 8 on the grounding operation shaft 4 by bolts, pass the limit barrel 5 through the grounding operation shaft 4 and close to the clamp 8, then tighten the fixing block 9 toward the limit barrel 5, and then tighten the end block 41 to install it.

[0040] like Figure 6 and Figure 7 As shown, a plurality of prisms 10 are also provided on the grounding operation shaft 4, and a mounting groove 101 is provided on one side of the prism 10 close to the end block 41. A notch 52 that can pass through the prism 10 is provided at the bottom of the limiting barrel 5. When the clamp 8 is installed, the clamp 8 and the mounting groove 101 are both plugged in, and at the same time, the prism 10 and the notch 52 of the limiting barrel 5 are both plugged in. In this way, the position of the limiting barrel 5 can be further prevented from moving, ensuring that when the grounding operation shaft 4 is in the closed state, the relative position of the limiting groove 51 and the lock core 71 remains unchanged.

[0041] As shown in the figure, a protective cover 14 is also provided on the front cabinet door 11 to protect the second opening 13. The protective cover 14 is made of a transparent material. The upper side of the protective cover 14 is rotatably connected to the front cabinet door 11. The protective cover 14 can protect the interlocking structure to prevent accidental contact. The transparent material also allows the structure of the second opening 13 to be seen, which is convenient for operation.

[0042] The implementation principle of the lower isolation integrated node cabinet with the front and rear cabinet interlocking structure in the embodiment of the present application is as follows: when the rear cabinet 2 needs to be opened, the end block 41 is first rotated through the first opening 12, and the end block 41 drives the grounding operation shaft 4 to the closed state, and then the key 72 is turned to make the lock core 71 pass through the limit groove 51 to fix the position of the grounding operation shaft 4. Then the key 72 is pulled out and the rear cabinet door can be opened with the key 72.

[0043] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed. However, as long as they are within the scope of the claims of the present invention, they are protected by the patent law.

Claims

1. A lower isolation integrated node cabinet with a front and rear cabinet interlocking structure, characterized in that: The invention comprises a front cabinet (1) and a rear cabinet (2), wherein a mounting plate (3) is arranged in the front cabinet (1), and a grounding operation shaft (4) is rotatably connected to the mounting plate (3); the front cabinet (1) comprises a front cabinet door (11), and a first opening (12) is arranged on the front cabinet door (11) near the grounding operation shaft (4); a limiting barrel (5) is fixedly mounted on the grounding operation shaft (4), and a limiting groove (51) is arranged on the limiting barrel (5); The rear cabinet body (2) comprises a rear cabinet door, a fixed lock (7) is mounted on the mounting plate (3), a key (72) of the fixed lock (7) can simultaneously open the rear cabinet door, a second opening (13) is provided on the front cabinet door (11) near the keyhole of the fixed lock (7), and the key (72) of the fixed lock (7) can be pulled out only after being locked; after the grounding operation shaft (4) is rotated to the closing position, the fixed lock (7) is opened by the key (72), and the lock core (71) of the fixed lock (7) passes through the limiting groove (51).

2. The lower isolation integrated node cabinet with front and rear cabinet interlocking structure according to claim 1, characterized in that: The fixing lock (7) is mounted on the horizontal plate (6), and a vertical plate (61) is fixedly connected to the horizontal plate (6) on one side close to the grounding operation shaft (4), and the vertical plate (61) is fixed to the mounting plate (3) by means of bolts.

3. The lower isolation integrated node cabinet with front and rear cabinet interlocking structure according to claim 1, characterized in that: The limiting barrel (5) passes through the grounding operation shaft (4), and a fixing component for fixing the limiting barrel (5) is provided on the grounding operation shaft (4).

4. The lower isolation integrated node cabinet with front and rear cabinet interlocking structure according to claim 3, characterized in that: The fixing assembly comprises a clamp (8) arranged on the grounding operation shaft (4), the clamp (8) being on a side of the limiting barrel (5) away from the first opening (12), and a fixing block (9) being threadedly connected to the other side of the limiting barrel (5).

5. The lower isolation integrated node cabinet with front and rear cabinet interlocking structure according to claim 4, characterized in that: A plurality of prisms (10) are arranged on the grounding operation shaft (4), and a notch (52) for plugging into the prisms (10) is arranged at the bottom of the limiting barrel (5).

6. The lower isolation integrated node cabinet with front and rear cabinet interlocking structure according to claim 5, characterized in that: The prism (10) is provided with a mounting groove (101), and the clamp (8) is plugged into the mounting groove (101) after installation.

7. The lower isolation integrated node cabinet with front and rear cabinet interlocking structure according to claim 1, characterized in that: A side of the limiting barrel (5) close to the first opening (12) is provided with an opening.

8. The lower isolation integrated node cabinet with front and rear cabinet interlocking structure according to claim 1, characterized in that: The front cabinet door (11) is provided with a transparent protective cover (14) for covering the second opening (13).

Images