Three-in-two-ring network cabinet system

Abstract

The utility model discloses a three-in-two ring network cabinet system. The three-in-two-ring network cabinet system comprises a first wire inlet cabinet, a second wire inlet cabinet, a first bus coupler cabinet and a second bus coupler cabinet, the first wire inlet cabinet and the second wire inlet cabinet are connected together through a top bus, the first bus coupler cabinet and the second bus coupler cabinet correspond to each other, and first lock structures are arranged in cabinet bodies of the first wire inlet cabinet, the second wire inlet cabinet and the first bus coupler cabinet. A first closing device is arranged at the load switch operation hole in the right side of the first lock structure; when the first closing device is in a closing state, the first lock structure locks the first key inserted into the first lock structure; and when the first closing device is in an opening state, the first lock structure unlocks the first key inserted into the first lock structure. The technical problem that a three-in-two functional assembly of a ring main unit in a two-section bus system is easy to cause safety accidents is solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of ring main unit, in particular to a three-in-two ring main unit system. BACKGROUND

[0002] The ring main unit has two conventional cabinet types of incoming line cabinet and bus tie cabinet. The incoming line cabinet is a cable incoming line unit, and each incoming line corresponds to a section of bus. The bus tie cabinet is a connecting unit between two sections of bus, and the connection is made at the lower end.

[0003] In the prior art, two incoming line cabinets and one or two bus tie cabinets are included in a two-section bus system. An operator operates the operation shaft arranged at the load switch operation hole of each ring main unit to realize the closing and opening operation of the load switch. However, there is no way to ensure that at most two of the one bus tie cabinet and two incoming line cabinets in the two-section bus system are in the closed state, and the rest are in the open state, that is, the three-in-two function of the ring main unit cannot be realized, which leads to safety accidents.

[0004] At present, there is no effective solution to the problem that the three-in-two function of the ring main unit in the two-section bus system cannot be realized in the related technology, which leads to safety accidents. SUMMARY

[0005] The main purpose of the present application is to provide a three-in-two ring main unit system to solve the problem that the three-in-two function of the ring main unit in the two-section bus system cannot be realized, which leads to safety accidents.

[0006] In order to achieve the above purpose, according to one aspect of the present application, a three-in-two ring main unit system is provided.

[0007] The three-in-two ring main unit system according to the present application comprises: a first incoming line cabinet, a second incoming line cabinet and corresponding first and second bus tie cabinets connected together through a top bus. A first lock structure is arranged in the cabinet body of the first incoming line cabinet, the second incoming line cabinet and the first bus tie cabinet. A first closing device is arranged at the load switch operation hole on the right side of the first lock structure. When the first closing device is in the closed state, the first lock structure locks the first key inserted therein. When the first closing device is in the open state, the first lock structure unlocks the first key inserted therein.

[0008] Further, the first closing device comprises: a limiting piece rotatably arranged at the load switch operation hole and located on the right side of the first lock structure; a displacement piece rotatably arranged in the incoming line cabinet or the bus tie cabinet and abutting against the lock tongue of the first lock structure at one end; and a travel switch arranged in the incoming line cabinet or the bus tie cabinet and connected with the other end of the displacement piece, and the long closed point of the travel switch is connected in series in the electrical closing circuit.

[0009] Further, the limiting piece is a cam.

[0010] Further, the displacement piece comprises a rotating shaft and a connecting piece, wherein the rotating shaft is arranged below the load switch operating hole, the connecting piece is rotatably connected to the rotating shaft, one end of the connecting piece abuts against the lock tongue of the first lock structure, and the other end of the connecting piece is connected to the travel switch.

[0011] Further, the connecting piece is a Y-shaped metal plate.

[0012] Further, the first closing device further comprises a first main shaft and a first stopper, wherein the first main shaft is arranged in the load switch operating hole, and a limiting piece is sleeved on the first main shaft, and the first stopper is slidably arranged in the cabinet and located below the first main shaft.

[0013] Further, the first closing device further comprises a first electromagnet, wherein the first electromagnet is arranged in the cabinet and located on the left side of the first stopper.

[0014] In the embodiment of the present application, the closing structure is improved, the first lock structure arranged in the cabinet of the first incoming line cabinet, the second incoming line cabinet and the first bus coupler cabinet, and the first closing device arranged at the load switch operating hole on the right side of the first lock structure are adopted; when the first closing device is in the closing state, the first lock structure locks the first key inserted therein; when the first closing device is in the opening state, the first lock structure unlocks the first key inserted therein, so that two first keys are provided, and the purpose of three-in-two of three ring network cabinets in two-section bus systems is achieved, thereby realizing the technical effect of improving safety, and further solving the technical problem that safety accidents are prone to occur due to the failure to realize the three-in-two function assembly of the ring network cabinet in the two-section bus system. BRIEF DESCRIPTION OF DRAWINGS

[0015] The accompanying drawings, which form a part of this application, are included to provide a further understanding of the application and are incorporated in and constitute a part of this application. The embodiments illustrated in the drawings provide one or more best modes contemplated for carrying out the application. In the drawings:

[0016] Fig. 1 is one of assembly schematic views according to the embodiment of the present application;

[0017] Fig. 2 is the second assembly schematic view according to the embodiment of the present application;

[0018] Fig. 3 is a structural schematic view according to the embodiment of the present application.

[0019] REFERENCE NUMERALS

[0020] 100, first closing device; 1, first incoming line cabinet; 2, second incoming line cabinet; 3, first bus coupler cabinet; 4, second bus coupler cabinet; 5, first lock structure; 6, load switch operation hole; 7, limiting piece; 8, displacement piece; 9, travel switch; 12, rotating shaft; 13, Y-shaped sheet metal; 14, first main shaft; 15, first stop block; 16, first electromagnet; 17, grounding switch operation hole. DETAILED DESCRIPTION

[0021] In order to enable persons skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by persons skilled in the art without creative work should fall within the scope of protection of the present application.

[0022] It should be noted that the terms "first", "second", and the like in the specification and claims of the present application and the above-described drawings are used to distinguish similar objects, and do not necessarily have to be used to describe a specific order or sequence. It should be understood that the data thus used can be interchanged under appropriate circumstances, so that the embodiments of the present application described herein can be implemented. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion, for example, a process, method, system, product or device including a series of steps or units does not have to be limited to only those steps or units clearly listed, but can include other steps or units not clearly listed or inherent to these processes, methods, products or devices.

[0023] In the present application, the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal", and the like indicate the orientation or positional relationship shown in the drawings. These terms are mainly used to better describe the present application and its embodiments, and are not intended to limit the indicated devices, elements or components to having a specific orientation, or to being constructed and operated in a specific orientation.

[0024] In addition, in addition to indicating the orientation or positional relationship, the above-mentioned part of the terms can also be used to indicate other meanings, for example, the term "upper" can also be used to indicate a certain attachment relationship or connection relationship in some cases. For persons skilled in the art, the specific meaning of these terms in the present application can be understood according to the specific circumstances.

[0025] In addition, the terms "mounting", "setting", "provided with", "connecting", "connected", "sleeved" should be understood broadly. For example, it can be fixed connection, detachable connection, or integral structure; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or internal communication between two devices, elements or components. For those skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0026] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict. The present application will be described in detail below with reference to the drawings and in combination with embodiments.

[0027] As shown in Figs. 1-3 The present application relates to a three-in-two loop network cabinet system, which comprises a first incoming line cabinet 1, a second incoming line cabinet 2 and corresponding first and second bus tie cabinets 3 and 4 connected together through a top bus. A first lock structure 5 is arranged in the cabinet body of the first incoming line cabinet 1, the second incoming line cabinet 2 and the first bus tie cabinet 3. A first closing device 100 is arranged at a load switch operating hole 6 on the right side of the first lock structure 5. When the first closing device 100 is in a closed state, the first lock structure 5 locks a first key inserted therein. When the first closing device 100 is in an open state, the first lock structure 5 unlocks the first key inserted therein.

[0028] Specifically, four ring network cabinets are connected through a top bus, and are respectively a first incoming line cabinet 1, a first bus tie cabinet 3, a second bus tie cabinet 4, and a second incoming line cabinet 2. Each cabinet has 17 operation holes of load switch operation holes 6 and grounding switch operation holes 17. All switches are three-position, and are divided into load switch closed position, load switch and grounding switch open position, and grounding switch closed position. The first lock structure 5 is composed of a lock body and a lock tongue. The lock body has four mounting holes and can be fixed on a support in the ring network cabinet. After being driven to rotate by a first key, the lock tongue will perform the actions of extension and retraction. The first closing device 100 is used for closing or opening the load switch. Preferably, the first closing device 100 comprises: a limiting piece 7 rotatably arranged at the load switch operation hole 6 and located at the right side of the first lock structure 5; a displacement piece 8 rotatably arranged in the incoming line cabinet or the bus tie cabinet and abutting against the lock tongue of the first lock structure 5 at one end; and a travel switch 9 arranged in the incoming line cabinet or the bus tie cabinet, connected with the other end of the displacement piece 8, and having a long closed point connected in series in an electrical closing circuit. Further, the limiting piece 7 is a cam. Further, the displacement piece 8 comprises: a rotating shaft 12 arranged below the load switch operation hole 6, and a Y-shaped metal plate 13 rotatably connected to the rotating shaft 12 and abutting against the lock tongue of the first lock structure 5 at one end and connected with the travel switch 9 at the other end.

[0029] The operation principle is as follows: after the load switch is closed, the cam will rotate with the load switch operation shaft (first main shaft 14). At this time, the cam will limit the right movement of the lock tongue of the lock body. If the program lock key needs to be pulled out, the key needs to be rotated, and the lock tongue will move accordingly. If the lock tongue cannot move, the key cannot be pulled out. Conversely, if the load switch is in the open state, the lock tongue can normally move to the right when the key is rotated, and the key can be normally pulled out. At the same time, the lock tongue moves to the right and presses the Y-shaped metal plate 13. The Y-shaped metal plate 13 rotates on the rotating shaft 12, and then changes the position of the travel switch 9. The long closed point of the travel switch 9 is connected in series in the electrical closing circuit, so that the load switch can be locked and electrically operated at this time. At the same time, the lock tongue extends to the right and blocks the load switch operation hole 6 shaft, so that the load switch cannot be mechanically operated.

[0030] In summary, when the device is in the locked state, the key cannot be pulled out, and the load switch can be mechanically and electrically operated. When the device is in the unlocked state, the key can be pulled out, and the load switch cannot be mechanically and electrically operated.

[0031] The first closing device 100 is arranged at the load switch operation hole 6 of the first incoming line cabinet 1, the first bus coupler cabinet 3 and the second incoming line cabinet 2, the lock core of the first lock structure 5 is numbered as KF1, and only two first keys are provided. After closing, the first key cannot be pulled out, so that at most two of the one bus coupler cabinet and the two incoming line cabinets in the two-section bus system are in the closed state, and the rest are in the open state. Therefore, the three-in-two function of the ring network cabinet is realized, and safety accidents are effectively avoided.

[0032] From the above description, it can be seen that the application achieves the following technical effects:

[0033] In the embodiment of the application, the first closing device 100 is arranged at the load switch operation hole 6 on the right side of the first lock structure 5 arranged in the cabinet body of the first incoming line cabinet 1, the second incoming line cabinet 2 and the first bus coupler cabinet 3. When the first closing device 100 is in the closed state, the first lock structure 5 locks the first key inserted therein. When the first closing device 100 is in the open state, the first lock structure 5 unlocks the first key inserted therein. By providing two first keys, the three-in-two function of the three ring network cabinets in the two-section bus system is achieved, thereby achieving the technical effect of improving safety, and further solving the technical problem that safety accidents are prone to occur due to the failure to achieve the three-in-two function of the ring network cabinet in the two-section bus system.

[0034] Preferably, the first closing device 100 further comprises a first main shaft 14, a first stop block 15 and a first electromagnet 16. The first main shaft 14 is arranged in the load switch operation hole 6 and a limiting piece 7 is sleeved thereon. The first stop block 15 is slidably arranged in the cabinet body and located below the first main shaft 14. The first electromagnet 16 is arranged in the cabinet body and located on the left side of the first stop block 15. Taking the first bus coupler cabinet 3 as an example, the closing locking electromagnet loop is connected in series with the disconnection position contact point of the grounding switch of the second bus coupler cabinet 4. When the grounding switch of the second bus coupler cabinet 4 is in the closed position, the closing locking first electromagnet 16 is released, the first stop block 15 is blocked by the locking tongue of the first electromagnet 16 and cannot move to the left, so that the load switch cannot be mechanically closed. Further, the disconnection position contact point of the grounding switch of the second bus coupler cabinet 4 is connected in series in the closing loop of the first bus coupler cabinet 3 to realize the electrical closing operation. The logical principle of the second bus coupler cabinet 4 is the same, and will not be described here.

[0035] The above only describes the preferred embodiments of the application and is not used to limit the application. For those skilled in the art, the application can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the application shall be included in the protection scope of the application.

Claims

1. A three-in-two ring main unit system, characterized by comprising: The utility model relates to a first incoming line cabinet, a second incoming line cabinet and corresponding first bus tie cabinet and second bus tie cabinet connected together through top bus, first lock structure is equipped in the cabinet body of first incoming line cabinet, second incoming line cabinet and first bus tie cabinet, first closing device is equipped at the load switch operation hole right side of first lock structure, when first closing device is in the closing state, first lock structure locks the first key inserted therein, when first closing device is in the opening state, first lock structure unlocks the first key inserted therein. The first closing device comprises: a limiting member rotatably arranged at the load switch operation hole and located at the right side of the first lock structure; a displacement member rotatably arranged in the incoming line cabinet or the bus tie cabinet and abutting against a lock tongue of the first lock structure at one end; and a travel switch arranged in the incoming line cabinet or the bus tie cabinet, connected to the other end of the displacement member, and having a long closed point connected in series in an electrical closing circuit.

2. The two out of three ring main unit system according to claim 1, characterized in that The limiting member is a cam.

3. The two out of three ring main unit system according to claim 2, characterized in that The displacement member comprises a rotating shaft and a connecting member, wherein the rotating shaft is arranged below the load switch operation hole, the connecting member is rotatably connected to the rotating shaft, and one end of the connecting member abuts against the lock tongue of the first lock structure, and the other end of the connecting member is connected to the travel switch.

4. The two out of three ring main unit system according to claim 2, characterized in that The connecting member is a Y-shaped metal plate.

5. The two out of three ring main unit system according to claim 4, characterized in that The first closing device further comprises a first main shaft and a first stopper, wherein the first main shaft is arranged in the load switch operation hole, and the limiting member is sleeved on the first main shaft, and the first stopper is slidably arranged in the cabinet body and located below the first main shaft.

6. The two-for-three ring main unit system of claim 2, wherein, The first closing device further comprises a first electromagnet, and the first electromagnet is arranged in the cabinet body and located at the left side of the first stopper.

7. The two-for-three ring main unit system according to claim 6, characterized in that ​

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