A fully sealed operating mechanism room of a ring main unit

Abstract

A fully sealed operating mechanism chamber of a ring network cabinet comprises: a mechanism cover box frame, a mechanism chamber door assembly, a waterproof joint assembly and an aviation plug assembly. The mechanism cover box frame comprises a mechanism cover top plate, a mechanism cover bottom plate and two oppositely arranged mechanism cover side plates; the mechanism chamber door assembly is installed on one of the open sides of the mechanism cover box frame; the other open side of the mechanism cover box frame is fixedly connected to the front of the gas box by studs and foam strips; the waterproof joint assembly is arranged on the mechanism cover top plate; the aviation plug assembly is arranged above the mechanism cover top plate. The operating mechanism chamber of the present invention achieves a high protection level of the operating mechanism, improves the stability of the operating mechanism, and greatly reduces the possibility of rust and jamming of the mechanism. It is also highly applicable, has no clear restrictions on the operating mechanism, and can be applied to various cabinet types and different operating mechanisms. It has a simple structure, a small size, a small number of components, high reliability, and a long service life.

Description

Technical Field

[0001] The invention belongs to the technical field of ring network cabinet equipment, and particularly relates to a fully sealed operating mechanism chamber of a ring network cabinet. Background Art

[0002] As ring network power supply technology matures, the application of ring main units (RMUs) is becoming increasingly common, now found in a variety of large factories and residential areas. However, with their widespread use, the operating environments have become more complex and diverse, with extreme climates such as windy, rainy, and frequent. However, the operating mechanisms of mainstream products currently on the market are partially exposed to the air, and the shielding on the indicator panels is barely adequate to withstand the erosion of wind, sand, and moisture. This condition can easily damage the mechanism and cause it to rust. In severe cases, it can even cause it to become stuck, severely shortening the lifespan of the RMU and potentially endangering the safety of operators. Therefore, the power sector has put forward requirements for the sealing of RMU mechanisms. Summary of the Invention

[0003] In order to solve the deficiencies in the prior art, the present invention aims to provide a fully sealed operating mechanism chamber for a ring main unit.

[0004] The present invention adopts the following technical solutions:

[0005] A fully sealed operating mechanism room of a ring network cabinet, comprising: a mechanism cover box frame, a mechanism room door assembly, a waterproof joint assembly and an aviation plug assembly, the mechanism cover box frame comprising a mechanism cover top plate, a mechanism cover bottom plate and two oppositely arranged mechanism cover side plates, and the other two sides are open sides; the mechanism room door assembly is installed on one of the open sides of the mechanism cover box frame; the other open side of the mechanism cover box frame is fixedly connected to the front face of the air box by studs and foam strips; a corresponding hole is respectively provided on the mechanism cover top plate and the mechanism cover bottom plate; a wire threading tube is provided between the holes of the mechanism cover top plate and the mechanism cover bottom plate; the waterproof joint assembly is sleeved on the top end of the wire threading tube; the aviation plug assembly is arranged above the mechanism cover top plate; corresponding studs for placing an indication panel bracket are also respectively provided on the two mechanism cover side plates of the mechanism cover box frame; a fixed silk screen printed panel is provided on the indication panel bracket.

[0006] Preferably, the waterproof connector assembly includes a waterproof connector body, a threaded buckle, an O-ring and a clamping claw.

[0007] Preferably, the waterproof connector body is located above the top plate of the mechanism cover and is sleeved on the top end of the threading tube, and an O-ring is provided between the waterproof connector body and the top plate of the mechanism cover.

[0008] Preferably, the clamping claw is arranged inside the threaded buckle, and the threaded buckle is connected to the upper side of the waterproof joint body by a threaded connection.

[0009] Preferably, the mechanism room door assembly includes a mechanism room door frame, a door foam strip, tempered glass, a glass pressure plate, a door lock and a locking rod.

[0010] Preferably, one side of the mechanism chamber door frame is connected to the mechanism cover box frame through a mechanism chamber door hinge.

[0011] Preferably, a door lock and a locking rod are provided on the other side of the mechanism room door frame.

[0012] Preferably, the inner frame and the outer frame of the inner surface of the mechanism chamber door frame are respectively provided with door foam strips and studs.

[0013] Preferably, the tempered glass is placed on the door foam strip of the inner frame.

[0014] Preferably, a glass pressing plate for pressing the tempered glass is provided on the tempered glass.

[0015] Preferably, the glass pressing plate is fixedly connected to the mechanism chamber door frame via studs.

[0016] Preferably, the aviation plug assembly includes a sealed aviation plug base and an aviation plug connector.

[0017] Preferably, the sealed aviation plug base is fixedly connected above the top plate of the mechanism cover and is connected to the interior of the mechanism chamber.

[0018] Preferably, one end of the aviation plug connector is connected to the sealed aviation plug base through a threaded locking connection, and the other end is connected to the components outside the mechanism room.

[0019] Preferably, the bottom plate of the mechanism cover is further provided with two openings, each of which is connected to a sealing flange with a sealing ring and an O-ring through a stud.

[0020] Preferably, a transition compartment is further provided below the bottom plate of the mechanism cover.

[0021] Preferably, a transition compartment panel is also provided on the transition compartment.

[0022] The transition compartment panel is disposed below the mechanism compartment door assembly.

[0023] Preferably, the lower door locking shaft passes through the sealing flange and is connected to a locking assembly placed in the transition compartment to form a mating lock.

[0024] Compared with the prior art, the present invention has the following beneficial effects:

[0025] 1. The present invention uses the tempered glass in the mechanism chamber door to ensure sealing while allowing the internal situation to be observed at any time. The current reading of the pressure gauge, the current connection status of the circuit breaker mechanism and the isolation grounding mechanism can be seen without opening the door.

[0026] 2. Because the protection level of the mechanism chamber involved in this application can reach IP65, the aviation plug assembly can be installed on the mechanism chamber, and the aviation plug can be used to connect the secondary circuit with other components in a plug-in manner, which not only improves the protection of the secondary circuit, but also facilitates replacement and maintenance, and can achieve "plug and play";

[0027] 3. The presence of the threading tube in the present invention can directly connect the cable chamber and the secondary chamber, reducing the connection distance. At the same time, it effectively protects the secondary circuit without affecting the sealing of the mechanism chamber.

[0028] 4. The mechanism box of the present invention adopts a full welding method to ensure the sealing of the mechanism box. At the same time, after welding, it is polished and painted. After completion, the surface of the finished product is smooth and free of rivets, which improves the appearance and reliability of the product.

[0029] 5. In existing products, the maintenance and disassembly of the sealing mechanism chamber is extremely complicated. This product only requires unscrewing the studs on the front of the mechanism chamber and the air box and then pulling it out as a whole to carry out maintenance and replacement of the mechanism, reducing the workload of maintenance personnel. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 This is a cross-sectional view of a sealing mechanism chamber of a ring main unit according to the present invention;

[0031] Figure 2 This is an assembly diagram of a sealing mechanism chamber of a ring main unit according to the present invention;

[0032] Figure 3 A side view of an assembly drawing of a sealing mechanism chamber of a ring main unit according to the present invention;

[0033] Figure 4 This is an assembly cross-sectional view of a waterproof joint assembly in a sealing mechanism chamber of a ring main unit according to the present invention;

[0034] Figure 5 A glass pressing plate for pressing glass on a mechanism chamber door in a sealed mechanism chamber of a ring main unit according to the present invention;

[0035] Figure 6 This is a schematic diagram of an aerial plug assembly in a sealing mechanism chamber of a ring main unit according to the present invention;

[0036] Figure 7 This is a side view of a sealing flange in a sealing mechanism chamber of a ring main unit according to the present invention;

[0037] Reference numerals:

[0038] 1-front of the gas box, 2-foaming strip, 3-stud, 4-transition compartment, 5-sealing flange, 6-mechanism room door, 7-silk screen printed indicator panel, 8-sealed aviation plug base, 9-waterproof connector assembly, 10-threading tube, 11-door foaming strip, 12-glass pressure plate, 13-tempered glass, 14-transition compartment panel, 15-mechanism room door hinge, 16-reinforced pressure plate, 17-threaded buckle, 18-waterproof connector body, 19-O-ring, 20-clamping claw, 21-indicator panel bracket, 22-aviation plug connector. DETAILED DESCRIPTION

[0039] The present application will be further described below in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solutions of the present invention and are not intended to limit the scope of protection of the present application.

[0040] Figures 1 to 7 This is a schematic diagram of the structure and components of a fully sealed operating mechanism chamber of a ring main unit of the present invention. Figures 1 to 7 As shown, a fully sealed operating mechanism room of a ring main unit of the present invention mainly includes a mechanism cover box frame, a mechanism room door assembly, a waterproof joint assembly 9 and an aviation plug assembly.

[0041] The mechanism cover box frame includes a mechanism cover top plate, a mechanism cover bottom plate and two oppositely arranged mechanism cover side plates, and the other two sides are open sides. The mechanism chamber door assembly is installed on one of the open sides of the mechanism cover box frame.

[0042] The other open side of the mechanism cover frame is fixedly connected to the air box front 1 via studs 3 and foam strips 2. A reinforcing plate 16 is also provided where the mechanism cover frame contacts the air box front 1, compressing the foam strips 2 and creating a sealed environment. Specifically, the mechanism chamber is pushed in horizontally, bringing the back of the chamber into contact with the foam strips 2 on the air box surface. The nuts are then tightened to compress the chamber against the foam strips 2, ultimately creating a fully sealed operating mechanism chamber with a protection rating of up to IP65, protecting the operating mechanism within.

[0043] A corresponding hole is provided on the top plate and the bottom plate of the mechanism cover respectively. A threading tube 10 is provided between the holes of the top plate and the bottom plate of the mechanism cover. The waterproof connector assembly 9 is sleeved on the top end of the threading tube 10 .

[0044] The aviation plug assembly is arranged above the top plate of the mechanism cover.

[0045] The two side panels of the mechanism cover box frame are respectively provided with corresponding studs for placing the indicator panel bracket 21 , and the indicator panel bracket 21 is provided with a fixed screen printing panel 7 .

[0046] The waterproof connector assembly 9 includes a waterproof connector body 18 , a threaded buckle 17 , an O-ring 19 and a clamping claw 20 .

[0047] The waterproof connector body 18 is located above the top plate of the mechanism cover and is sleeved onto the top of the conduit 10. It is threadedly connected to the top plate, and an O-ring 19 is positioned between the body 18 and the top plate to create a seal. A clamping claw 20 is positioned within the threaded buckle 17, which is threadedly connected to the upper side of the waterproof connector body 18. As the buckle 17 is tightened, the clamping claw 20 within the buckle 17 contracts, creating a separate space that passes through the mechanism chamber, without affecting the sealing effect within the mechanism chamber.

[0048] The conduit 10 can also be used for secondary room wiring on the top of a cable room and a mechanism room.

[0049] The mechanism room door assembly includes a mechanism room door frame 6, a door foam strip 11, a tempered glass 13, a glass pressure plate 12, a door lock and a lock rod.

[0050] One side of the mechanism compartment door frame 6 is connected to the mechanism cover housing frame via a mechanism compartment door hinge 15. A door lock and lock rod are installed on the other side of the mechanism compartment door frame 6. Door foam strips 11 and studs are installed on the inner and outer frames of the mechanism compartment door frame 6, respectively. Tempered glass 13 is placed on the inner frame's door foam strip 11, while the outer frame's door foam strip 11 contacts the mechanism cover housing frame. A glass pressure plate 12 is installed on the tempered glass 13 to press it against the mechanism cover housing frame. The glass pressure plate 12 is fixed to the mechanism compartment door frame 6 via studs. The door foam strip 11, tempered glass 13, and glass pressure plate 12 form a seal. The tempered glass allows the user to clearly see the internal circuit breaker status and barometer readings without opening the door. The outer foaming seal is used to press against the four front edges of the mechanism cover frame when the door is closed, forming a seal. Both foaming strips ensure that the IP65 protection rating is achieved during normal operation.

[0051] The aviation plug assembly includes a sealed aviation plug base 8 and an aviation plug connector 22 .

[0052] The sealed aviation plug base 8 is fixedly connected to the top of the mechanism cover and is connected to the interior of the mechanism chamber. Specifically, it is connected to the secondary line inside the mechanism chamber. One end of the aviation plug connector 22 is connected to the sealed aviation plug base 8 through a threaded locking connection, and the other end is connected to the components outside the mechanism chamber. Precisely because the protection level of the mechanism chamber involved in this application can reach IP65, the aviation plug assembly can be installed in the mechanism chamber, which not only improves the protection of the secondary circuit, but also facilitates replacement and maintenance, and can achieve "plug and play".

[0053] The mechanism cover baseplate also has two openings, each connected via a stud to a sealing flange 5 with a sealing ring and an O-ring. Specifically, the mechanism cover baseplate has two openings, each connected to a sealing flange 5. An O-ring is placed in the circular groove, and a direct-acting sealing ring is placed in the middle of the hole, which is then secured via studs on the mechanism chamber baseplate. The direct-acting sealing ring passing through the middle is used to seal the cable compartment door interlock shaft. Since the interlock rod needs to extend out of the mechanism chamber and connect to the bottom, this design can ensure the normal operation of its original function while achieving sealing.

[0054] A transition compartment 4 is further provided below the bottom plate of the mechanism cover. A transition compartment panel 14 is further provided on the transition compartment 4. The transition compartment panel 14 is provided below the mechanism chamber door assembly.

[0055] The lower door locking shaft passes through the sealing flange 5 and is connected to the locking assembly placed in the transition compartment 4 to form a mating lock.

[0056] Compared with the prior art, the present invention has the following beneficial effects:

[0057] 1. The present invention uses the tempered glass in the mechanism chamber door to ensure sealing while allowing the internal situation to be observed at any time. The current reading of the pressure gauge, the current connection status of the circuit breaker mechanism and the isolation grounding mechanism can be seen without opening the door.

[0058] 2. Because the protection level of the mechanism chamber involved in this application can reach IP65, the aviation plug assembly can be installed on the mechanism chamber, and the aviation plug can be used to connect the secondary circuit with other components in a plug-in manner, which not only improves the protection of the secondary circuit, but also facilitates replacement and maintenance, and can achieve "plug and play";

[0059] 3. The presence of the threading tube in the present invention can directly connect the cable chamber and the secondary chamber, reducing the connection distance. At the same time, it effectively protects the secondary circuit without affecting the sealing of the mechanism chamber.

[0060] 4. The mechanism box of the present invention adopts a full welding method to ensure the sealing of the mechanism box. At the same time, after welding, it is polished and painted. After completion, the surface of the finished product is smooth and free of rivets, which improves the appearance and reliability of the product.

[0061] 5. In existing products, the maintenance and disassembly of the sealing mechanism chamber is extremely complicated. This product only requires unscrewing the studs on the front of the mechanism chamber and the air box and then pulling it out as a whole to carry out maintenance and replacement of the mechanism, reducing the workload of maintenance personnel.

[0062] The applicant of the present invention has made a detailed explanation and description of the implementation examples of the present invention in conjunction with the drawings in the specification. However, those skilled in the art should understand that the above implementation examples are only preferred implementation plans of the present invention, and the detailed description is only to help readers better understand the spirit of the present invention, and is not a limitation on the scope of protection of the present invention. On the contrary, any improvements or modifications based on the inventive spirit of the present invention should fall within the scope of protection of the present invention.

Claims

1. A fully sealed operating mechanism chamber of a ring main unit, comprising: The mechanism cover box frame, the mechanism chamber door assembly, the waterproof joint assembly (9) and the aviation plug assembly are characterized by: The mechanism cover box frame includes a mechanism cover top plate, a mechanism cover bottom plate and two oppositely arranged mechanism cover side plates, and the other two side surfaces are opening side surfaces; The mechanism chamber door assembly is mounted on one of the opening sides of the mechanism cover box frame; The other open side surface of the mechanism cover box frame is fixedly connected to the front surface (1) of the air box via studs (3) and foam strips (2); The top plate of the mechanism cover and the bottom plate of the mechanism cover are respectively provided with a corresponding hole; A threading tube (10) is provided between the holes of the mechanism cover top plate and the mechanism cover bottom plate; The waterproof joint assembly (9) is sleeved on the top end of the threading tube (10); The aviation plug assembly is arranged above the top plate of the mechanism cover; The two mechanism cover side plates of the mechanism cover box frame are also respectively provided with corresponding studs for placing the indicator panel bracket (21); A fixed screen printing panel (7) is provided on the indicator panel bracket (21); The mechanism chamber door assembly comprises a mechanism chamber door frame (6), a door foaming strip (11), tempered glass (13), a glass pressing plate (12), a door lock and a locking rod; One side of the mechanism chamber door frame (6) is connected to the mechanism cover box frame via a mechanism chamber door hinge (15); A door lock and a locking rod are provided on the other side of the mechanism room door frame (6); The inner frame and outer frame of the inner surface of the mechanism chamber door frame (6) are respectively provided with door foam strips (11) and studs; The tempered glass (13) is placed on the door foam strip (11) of the inner frame; The door foam strip (11) of the housing is used to contact the mechanism cover box frame; The tempered glass (13) is provided with a glass pressing plate (12) for pressing the tempered glass (13); The glass pressing plate (12) is fixedly connected to the mechanism chamber door frame (6) via studs.

2. The fully sealed operating mechanism chamber of a ring main unit according to claim 1, characterized in that: The waterproof joint assembly (9) comprises a waterproof joint body (18), a threaded buckle (17), an O-ring (19) and a clamping claw (20).

3. The fully sealed operating mechanism chamber of a ring main unit according to claim 2, characterized in that: The waterproof joint body (18) is located above the top plate of the mechanism cover and is sleeved on the top of the threading tube (10), and an O-ring (19) is provided between the waterproof joint body (18) and the top plate of the mechanism cover; The clamping claw (20) is arranged inside the threaded buckle (17), and the threaded buckle (17) is connected to the upper side of the waterproof joint body (18) by means of a threaded connection.

4. The fully sealed operating mechanism chamber of a ring main unit according to claim 1, characterized in that: The aviation plug assembly comprises a sealed aviation plug base (8) and an aviation plug connector (22).

5. The fully sealed operating mechanism chamber of a ring main unit according to claim 4, characterized in that: The sealed aviation plug base (8) is fixedly connected above the top plate of the mechanism cover and is connected to the interior of the mechanism chamber; One end of the aviation plug connector (22) is connected to the sealed aviation plug base (8) through a threaded locking connection, and the other end is connected to the components outside the mechanism room.

6. The fully sealed operating mechanism chamber of a ring main unit according to claim 1, characterized in that: The mechanism cover bottom plate is also provided with two openings, each of which is connected to a sealing flange (5) with a sealing ring and an O-ring via a stud.

7. The fully sealed operating mechanism chamber of a ring main unit according to claim 6, characterized in that: A transition compartment (4) is also provided below the bottom plate of the mechanism cover; The transition compartment (4) is further provided with a transition compartment panel (14); The transition compartment panel (14) is arranged below the mechanism compartment door assembly.

8. The fully sealed operating mechanism chamber of a ring main unit according to claim 7, characterized in that: The lower door interlock shaft passes through the sealing flange (5) and is connected to the interlocking assembly placed in the transition compartment (4) to form a matching interlock.

Images