Interlocking device for cable chamber of ring main unit

Abstract

A ring main unit cable chamber interlocking device comprises a mechanism chamber and a cable chamber, an electromagnetic lock is arranged in the mechanism chamber, an electromagnetic lock rod is arranged at the lower end of the electromagnetic lock, the electromagnetic lock rod is connected with the upper end of a lower door interlocking rod, the upper end of the lower door interlocking rod is arranged in the mechanism chamber, and the lower end of the lower door interlocking rod is arranged in the cable chamber. A door interlocking accessory is arranged in the cable chamber, a sliding groove is formed in the door interlocking accessory, and the lower end of the lower door interlocking rod is connected with the sliding groove in a sliding mode. Through cooperation of the electromagnetic lock and the lower door interlocking rod, the structure of the isolation operation mechanism is simplified, spare and accessory parts are reduced, and the production speed is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of ring network cabinets, in particular to a cable room interlocking device for a ring network cabinet. Background Art

[0002] At present, environmentally friendly gas insulated ring main unit is widely used. Generally speaking, the ring main unit mechanism is a three-position mechanism, corresponding to the circuit breaker, disconnector, and grounding switch respectively.

[0003] However, in the face of the ever-changing technology, each mechanism is interlocked with each other, and the on-site operators must be very familiar with the operation sequence of each mechanism, which places high demands on the skill level of the operators, so simplifying the operation process has become an urgent need. In addition, some areas explicitly require that the incoming line cabinets that basically do not have power outages should not be equipped with grounding switches. In this case, many manufacturers directly cancel the grounding switch and the accompanying cable room door interlock. Although this approach is simple, it is very rough. It simplifies the operation process, but personal safety is not guaranteed. There are also a small number of manufacturers who cannot achieve cable room interlocking after canceling the grounding, and can only find ways to do it outside the cabinet. Although this method retains the interlocking device, it destroys the overall appearance of the cabinet, destroys the protection level of the cabinet, reduces the service life of the equipment, and requires the installation of various accessories, which is time-consuming to process and laborious to install. Utility Model Content

[0004] The utility model aims to provide a cable chamber interlocking device for a ring main unit to solve the problems raised in the above-mentioned background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A ring network cabinet cable room interlocking device comprises a mechanism room and a cable room, wherein an electromagnetic lock is arranged in the mechanism room, an electromagnetic lock rod is arranged at the lower end of the electromagnetic lock, the electromagnetic lock rod is connected with the upper end of a lower door interlock rod, the upper end of the lower door interlock rod is placed in the mechanism room, the lower end of the lower door interlock rod is placed in the cable room, a door interlocking accessory is arranged in the door interlocking accessory, a slide groove is provided, and the lower end of the lower door interlock rod is slidably connected with the slide groove.

[0007] In a possible implementation manner, a mechanism chamber lower plate is provided at the connection between the mechanism chamber and the cable chamber, a through hole is opened on the mechanism chamber lower plate, and the lower door interlocking rod passes through the through hole.

[0008] In a possible implementation, the lower door interlock rod includes an upper connecting portion, a rod portion and a lower connecting portion, the upper connecting portion or the lower connecting portion is at a right angle to the rod portion, the upper connecting portion is connected to the electromagnetic lock rod, and the lower connecting portion is placed in the slide groove.

[0009] In a possible implementation, the cable chamber includes a cable chamber door and side plates. Positioning holes are formed in the side plates, and positioning rivets are installed in the positioning holes. The positioning rivets are connected to the cable chamber door.

[0010] In a possible implementation, the door interlock accessory is in a U-shaped structure, and the chute is provided at the bottom of the U-shaped structure.

[0011] In a possible implementation, the door interlock accessory is installed on the inner side surface of the cable chamber door.

[0012] In a possible implementation, a handle is installed on the outer side surface of the cable chamber door.

[0013] In a possible implementation, the electromagnetic lock is fixed to the side wall of the mechanism chamber through a mounting plate.

[0014] Compared with the prior art, the present utility model has the following advantages:

[0015] By using the cooperation of the electromagnetic lock and the lower door interlock rod, the structure of the isolation operating mechanism is simplified, the number of parts is reduced, and the production speed is increased; while ensuring safety, the number of components that the operator needs to operate is reduced, and the operation difficulty is lowered. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0017] Figure 2 is a schematic diagram of the structure of the present utility model with a handle;

[0018] Figure 3 is a schematic diagram of the structure at the connection between the cable chamber door and the side plate in the present utility model.

[0019] In the figure: 10, mechanism chamber; 20, cable chamber; 11, electromagnetic lock; 12, electromagnetic lock rod; 13, side wall of the mechanism chamber; 14, mounting plate; 15, lower plate of the mechanism chamber; 21, lower door interlock rod; 22, door interlock accessory; 23, cable chamber door; 24, side plate; 25, handle; 26, positioning rivet; 211, upper connecting portion; 212, rod portion; 213, lower connecting portion; 221, chute. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] To further elaborate on the technical means and effects adopted by the present utility model to achieve the predetermined utility model purpose, the following, in conjunction with the accompanying drawings and preferred embodiments, details the specific implementation manners, structures, features, and effects according to the present utility model as follows.

[0021] As Figure 1-2As shown in the figure, a ring main unit cable chamber interlocking device includes a mechanism chamber 10 and a cable chamber 20. An electromagnetic lock 11 is provided in the mechanism chamber 10. An electromagnetic lock rod 12 is provided at the lower end of the electromagnetic lock 11. The upper end of the electromagnetic lock rod 12 is connected to the upper end of a lower door interlocking rod 21. The upper end of the lower door interlocking rod 21 is placed inside the mechanism chamber 10, and the lower end of the lower door interlocking rod 21 is placed inside the cable chamber 20. A door interlocking accessory 22 is provided in the cable chamber 20. A chute 221 is formed inside the door interlocking accessory 22. The lower end of the lower door interlocking rod 21 is slidably connected to the chute 221.

[0022] In this application, isolating switches, circuit breakers and other equipment are placed in the mechanism chamber 10. The electromagnetic lock can be unlocked by face recognition, fingerprint recognition and other methods. To facilitate the reasonable arrangement of the equipment in the mechanism chamber 10, the electromagnetic lock 11 is fixed to the side wall 13 of the mechanism chamber through a mounting plate 14. As a part of the lower door interlocking rod 21 for controlling the opening and closing of the cable chamber door 23 is inside the mechanism chamber 10 and a part is inside the cable chamber 20, it is ensured that when the cable chamber door 23 is opened or closed, the lower door interlocking rod 21 will not be completely pulled out due to improper operation by the operator, resulting in the loss of control of the cable chamber door 23.

[0023] Furthermore, a lower plate 15 of the mechanism chamber is provided at the connection between the mechanism chamber 10 and the cable chamber 20. A through hole is formed in the lower plate 15 of the mechanism chamber. The lower door interlocking rod 21 passes through the through hole. The lower door interlocking rod 21 includes an upper connection portion 211, a rod portion 212 and a lower connection portion 213. The upper connection portion 211 or the lower connection portion 213 is at a right angle to the rod portion 212. The upper connection portion 211 is connected to the electromagnetic lock rod 12. The lower connection portion 213 is placed inside the chute 221. The door interlocking accessory 22 can be in a U-shaped structure. The chute is provided at the bottom edge of the U-shaped structure. The door interlocking accessory 22 is installed on the inner side surface of the cable chamber door 23. A handle 25 is installed on the outer side surface of the cable chamber door 23.

[0024] Due to the limitation of the through hole, the up and down movement range of the lower door interlocking rod 21 is limited, so as to ensure that the lower door interlocking rod 21 can touch the bottom of the chute when the cable chamber door 23 needs to be locked; and when the cable chamber door 23 is opened, the lower door interlocking rod 21 just touches the top of the chute. This can further reduce the operation difficulty of the operator. The operator only needs to control the opening and closing of the electromagnetic lock 11 to realize the control of the opening and closing of the cable chamber door 23. When the cable chamber door 23 is unlocked, the operator can open the cable chamber door 23 through the handle 25.

[0025] The cable chamber includes a cable chamber door 23 and a side plate 24. A positioning hole is formed in the side plate 24, and a positioning rivet 26 is installed in the positioning hole. The positioning rivet 26 is connected to the cable chamber door 23. By using the protruding part of the positioning rivet 26, the cable chamber door 23 can be hung at a pre-designed position on the side plate 24. If it is necessary to remove the cable chamber door 23, it is necessary to lift the door panel to achieve this.

[0026] During use, when the electromagnetic lock 11 receives a locking signal, the electromagnetic lock rod 12 extends out of the lock body of the electromagnetic lock. Driven by the electromagnetic lock rod 12, the lower door interlocking rod 21 will move downward by a certain distance. At this time, the bottom of the lower door interlocking rod 21 abuts against the bottom edge of the chute, resulting in the inability to lift the cable chamber door 23. At this time, the cable chamber door 23 has been interlocked.

[0027] When the equipment is de-energized, the electromagnetic lock 11 receives an unlocking signal, and the electromagnetic lock can manually retract the electromagnetic lock rod 12. At this time, the lower door interlocking rod 21 will move upward driven by the electromagnetic lock rod. At this time, the cable chamber door 23 can be lifted, and the cable chamber can be unlocked.

[0028] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inner", "front", "center", "both ends", "left and right", "front and back", etc. is the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present invention.

[0029] In the present invention, unless otherwise clearly specified and limited, the terms "installation", "setting", "connection", "fixation", "swivel connection", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. It can be the internal communication of two elements or the interaction relationship between two elements. Unless otherwise clearly limited, for those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0030] The above are only the preferred embodiments of the present utility model, and do not impose any form of limitation on the present utility model. Although the present utility model has been disclosed above with the preferred embodiments, it is not intended to limit the present utility model. Any person skilled in the art can make some changes or modifications to equivalent embodiments by using the disclosed technical content within the scope of the technical solution of the present utility model. However, as long as it does not depart from the content of the technical solution of the present utility model, any brief modifications, equivalent changes and modifications made to the above embodiments according to the technical essence of the present utility model still fall within the scope of the technical solution of the present utility model.

Claims

1. A cable room interlocking device for a ring main unit, characterized in that: The invention comprises a mechanism chamber (10) and a cable chamber (20), wherein an electromagnetic lock (11) is arranged in the mechanism chamber (10), an electromagnetic lock rod (12) is arranged at the lower end of the electromagnetic lock (11), the electromagnetic lock rod (12) is connected to the upper end of a lower door interlock rod (21), the upper end of the lower door interlock rod (21) is placed in the mechanism chamber (10), the lower end of the lower door interlock rod (21) is placed in the cable chamber (20), a door interlock accessory (22) is arranged in the door interlock accessory (22), a slide groove (221) is provided, and the lower end of the lower door interlock rod (21) is slidably connected to the slide groove (221).

2. The cable room interlocking device of the ring main unit according to claim 1 is characterized in that: A mechanism chamber lower plate (15) is provided at the connection between the mechanism chamber (10) and the cable chamber (20), and a through hole is provided on the mechanism chamber lower plate (15), and the lower door interlocking rod (21) passes through the through hole.

3. The cable room interlocking device of the ring main unit according to claim 1 is characterized in that: The lower door interlocking rod (21) comprises an upper connecting portion (211), a rod portion (212) and a lower connecting portion (213); the upper connecting portion (211) or the lower connecting portion (213) is at a right angle to the rod portion (212); the upper connecting portion (211) is connected to the electromagnetic locking rod (12); and the lower connecting portion (213) is disposed in the sliding groove (221).

4. The cable room interlocking device of the ring main unit according to claim 1 is characterized in that: The cable chamber (20) comprises a cable chamber door (23) and a side plate (24); a positioning hole is provided on the side plate (24); a positioning rivet (26) is installed in the positioning hole; the positioning rivet (26) is connected to the cable chamber door (23).

5. The cable room interlocking device of the ring main unit according to claim 1 is characterized in that: The door interlocking accessory (22) is in a U-shaped structure, and the sliding groove (221) is arranged at the bottom edge of the U-shaped structure.

6. The cable room interlocking device of the ring main unit according to claim 4 is characterized in that: The door interlock accessory (22) is installed on the inner side of the cable room door (23).

7. The cable room interlocking device of the ring main unit according to claim 4 is characterized in that: A handle (25) is installed on the outer side of the cable chamber door (23).

8. The cable room interlocking device of the ring main unit according to claim 1 is characterized in that: The electromagnetic lock (11) is fixed to the side wall (13) of the mechanism chamber via a mounting plate (14).

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