Universal ring main unit hard interlocking device

Abstract

The utility model belongs to the technical field of mechanical interlocking, and particularly relates to a universal type ring main unit hard interlocking device, which comprises a first interlocking part, a second interlocking part, a third interlocking part and a fourth interlocking part, the first interlocking part is arranged on a ring main unit, a first movable end and a first hanging end are arranged on the first interlocking part, and the first hanging end is connected with a movable door plate of the ring main unit; and the second interlocking part is arranged on the ring main unit and is provided with a second movable end and a second hanging end, the second movable end is connected with the first movable end, and the second hanging end is connected with a fuse bin gate of the ring main unit. According to the utility model, the first interlocking part is connected with the movable plate door, the first interlocking part and the second interlocking part are linked, and the fuse bin door is closed at the same time, so that a forced locking effect is achieved; through the metal plate modular design, high-reliability interlocking is realized through an extremely simple structure, the long-standing problems that soft interlocking is easy to damage and hard interlocking is poor in adaptability in the industry are solved, and the interlocking device is particularly suitable for a combined electric appliance cabinet scene with strict requirements on double-bin interlocking.

Description

TECHNICAL FIELD

[0001] The utility model belongs to mechanical interlock technical field, especially relate to a general type ring main unit hard interlock device. BACKGROUND

[0002] The main products of ring main unit are three kinds, load switch cabinet, load switch fuse combination electrical cabinet and circuit breaker cabinet, three cabinet types need interlock interlock device, among them, the circuit breaker cabinet and load switch cabinet interlock are same, when opening the cable chamber door plate, the grounding switch cannot be operated, the combination electrical cabinet is different, and is divided into two parts, fuse chamber and high voltage cable chamber, and it is required that when opening the door plate of any one, the grounding switch cannot be operated.

[0003] The most common solution on the market is to use interlock wire, that is, a plastic soft wire is used with a plastic hose, but the following problems exist.

[0004] 1, the interlock wire will deform after long-term use, resulting in interlock failure;

[0005] 2, the soft interlock assembly is also relatively complex, and the cost is high;

[0006] 3, at the same time, the interlock wire is difficult to install for workshop production personnel;

[0007] 4, dangerous actions can still be performed in a non-safe state, causing personal injury or equipment damage;

[0008] 5, the traditional interlock device has poor applicability. UTILITY MODEL CONTENT

[0009] The utility model aims at providing a general type ring main unit hard interlock device, to solve the technical problems of complex structure, inconvenient maintenance, poor applicability and low safety of traditional interlock device.

[0010] To solve the above technical problems, the specific technical scheme of the utility model is as follows:

[0011] In some embodiments of the application, a general type ring main unit hard interlock device is provided, comprising:

[0012] The first interlock component is provided on the ring main unit, and the first movable end and the first hanging end are provided thereon, wherein the first hanging end is connected with the movable door plate of the ring main unit;

[0013] The second interlock component is provided on the ring main unit, and the second movable end and the second hanging end are provided thereon, wherein the second movable end is connected with the first movable end, and the second hanging end is connected with the fuse chamber door of the ring main unit.

[0014] In some embodiments of the application, the first interlocking component is a combined structure, comprising:

[0015] The lower door interlocking support is arranged on the ring main unit and is fixedly connected with the ring main unit, and a through hole is arranged on the lower door interlocking support;

[0016] The lower door interlocking support is arranged on the ring main unit and is fixedly connected with the ring main unit, and a through hole is arranged on the lower door interlocking support;

[0017] The first lower door interlocking piece is arranged on the lower door interlocking support and is rotationally connected with the lower door interlocking support, a limiting step and a connecting end are arranged on the first lower door interlocking piece, and the connecting end is connected with the movable door plate of the ring main unit;

[0018] The lock rod is arranged on the lower door interlocking support and is rotationally connected with the lower door interlocking support, a limiting step and a connecting end are arranged on the first lower door interlocking piece, and the connecting end is connected with the movable door plate of the ring main unit;

[0019] In some embodiments of the application, the second interlocking component is a combined structure, comprising:

[0020] The grounding interlocking support is arranged on the ring main unit and is fixedly connected with the ring main unit, and a limiting pin shaft is arranged on the grounding interlocking support;

[0021] The fuse bin door support is arranged at the bottom of the grounding interlocking support and is fixedly connected with the grounding interlocking support, and a first through hole and a second through hole are arranged on the fuse bin door support;

[0022] The fuse bin door interlocking piece is arranged on the fuse bin door support and is rotationally connected with the fuse bin door support, a limiting groove is arranged on the fuse bin door interlocking piece, and a second hanging end is arranged at the bottom of the fuse bin door interlocking piece;

[0023] The second lower door interlocking piece is arranged on the grounding interlocking support and is slidingly connected with the grounding interlocking support, the second lower door interlocking piece is sleeved on the limiting pin shaft, an interlocking pin is arranged at the top of the second lower door interlocking piece, the interlocking pin is connected with the lock rod, a fuse bin door interlocking pin is arranged at the bottom of the second lower door interlocking piece, and the fuse bin door interlocking pin is embedded in the fuse bin door of the ring main unit during longitudinal movement and penetrates the first through hole and the second through hole.

[0024] Compared with the prior art, the beneficial effects of the utility model lie in that the first interlocking component is connected with the movable door plate, the first interlocking component and the second interlocking component are linked, the fuse bin door is closed, and the effect of forced locking is achieved; the modular design of sheet metal is used to realize high-reliability interlocking with an extremely simple structure, the problems of easy damage of soft interlocking and poor adaptability of hard interlocking in the industry are solved, and the utility model is especially suitable for combined electric appliance cabinet scenes with strict requirements for double-bin interlocking. BRIEF DESCRIPTION OF DRAWINGS

[0025] Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments with reference made to the accompanying drawings. The drawings are for purposes of illustration only and are not intended to limit the present application thereto. Like reference numerals have been used throughout the drawings to denote the same parts. In the drawings:

[0026] Figure 1 A schematic diagram of the structure of the ring main unit provided in the embodiments of the present application is shown in the figure;

[0027] Figure 2 A schematic diagram of the overall structure of the ring main unit installation provided in the embodiments of the present application is shown in the figure;

[0028] Figure 3 A schematic diagram of the structure of the first interlocking component provided in the embodiments of the present application is shown in the figure;

[0029] Figure 4 A schematic diagram of the structure of the second interlocking component provided in the embodiments of the present application is shown in the figure;

[0030] Figure 5 A schematic diagram of the structure of the fuse bin door support provided in the embodiments of the present application is shown in the figure. DETAILED DESCRIPTION

[0031] The specific embodiments of the present application will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate the present application, but are not used to limit the scope of the present application.

[0032] In order to better understand the purpose, structure and function of the present application, the present application will be described in further detail below with reference to the accompanying drawings.

[0033] Example 1

[0034] Referring to the accompanying Figures 1-5 As shown in the accompanying drawings, according to the embodiments of the present application, it includes:

[0035] The first interlocking component 001 is a mechanical locking structure, which is arranged on the ring main unit and is provided with a first movable end and a first hanging end. The first hanging end is connected to the movable door plate of the ring main unit.

[0036] The second interlocking component 002 is a mechanical locking structure, which is arranged on the ring main unit and is provided with a second movable end and a second hanging end. The second movable end is connected to the first movable end, and the second hanging end is connected to the fuse bin door of the ring main unit.

[0037] It should be noted that the ring main unit includes a load switch cabinet, a circuit breaker cabinet, and a load switch-fuse combined electrical apparatus cabinet, but is not limited thereto.

[0038] Through the technical solutions, the application embodiment produces the technical effects:

[0039] By the action of the movable door plate, the first interlocking component 001 is locked, and the second interlocking component 002 is driven to move synchronously, and then the second interlocking component 002 locks the fuse compartment door, thereby achieving the linkage effect, and providing a basis for solving the problems of the traditional interlocking device, such as complex structure, inconvenient maintenance, poor applicability, and low safety.

[0040] Embodiment 2

[0041] In the application embodiment, the technical solutions in the above embodiments are adopted, wherein the first interlocking component 001 is a combined structure, comprising:

[0042] The lower door interlocking support 3 is arranged on the ring main unit, and is fixedly connected with the ring main unit, and a through hole is arranged on the lower door interlocking support 3;

[0043] The lower door interlocking stop plate 4 is arranged on the lower door interlocking support 3, and is fixedly connected with the lower door interlocking support 3;

[0044] The first lower door interlocking plate 1 is arranged on the lower door interlocking support 3, and is rotatably connected with the lower door interlocking support 3, and a limiting step and a connecting end are arranged on the first lower door interlocking plate 1, wherein the connecting end is connected with the movable door plate of the ring main unit;

[0045] The lock rod 2 penetrates through the through hole of the lower door interlocking support 3 and is in contact with the limiting step of the first lower door interlocking plate 1 at one end, and is connected with the second movable end of the second interlocking component 002 at the other end.

[0046] Through the technical solutions, the application embodiment produces the technical effects:

[0047] In the initial state, the bottom of the lock rod 2 is in contact with the limiting step (the highest position) of the first lower door interlocking plate 1, and the connecting end of the first lower door interlocking plate 1 is connected with the movable door plate, when the movable door plate is closed, the first lower door interlocking plate 1 is driven to rotate, so that the lock rod 2 is driven to move from the high position limiting step to the low position limiting step under the action of gravity, and the first lower door interlocking plate 1 is prevented from being reversed, and the second interlocking component 002 is driven to move synchronously by the lock rod 2, thereby completing the forced locking operation, and providing a basis for solving the problems of the traditional interlocking device, such as complex structure, inconvenient maintenance, poor applicability, and low safety.

[0048] Embodiment 3

[0049] In the application embodiment, the technical solutions in the above embodiments are adopted, wherein the second interlocking component 002 is a combined structure, comprising:

[0050] The grounding interlocking support 12 is arranged on the ring main unit and fixedly connected with the ring main unit, and a limiting pin shaft 8 is arranged on the grounding interlocking support 12;

[0051] The fuse bin door support 7 is arranged at the bottom of the grounding interlocking support 12 and fixedly connected with the grounding interlocking support 12, and a first through hole and a second through hole are arranged on the fuse bin door support 7;

[0052] The fuse bin door interlocking piece 5 is arranged on the fuse bin door support 7 and rotationally connected with the fuse bin door support 7, a limiting groove is arranged on the fuse bin door interlocking piece 5, and a second hanging end is arranged at the bottom of the fuse bin door interlocking piece 5. It should be noted that the fuse bin door interlocking piece 5 rotates synchronously in the closing process of the fuse bin door, at this time, the fuse bin door interlocking piece 5 is in abutting connection with the fuse bin door, and when the fuse bin door reaches the maximum closing position, the fuse bin door interlocking piece 5 is clamped with the fuse bin door.

[0053] The second lower door interlocking piece 9 is arranged on the grounding interlocking support 12 and slidably connected with the grounding interlocking support 12 (that is, the lower door sliding interlocking piece 10 is slidably connected with the grounding interlocking support 12, so that the second lower door interlocking piece 9 can move longitudinally on the grounding interlocking support 13), the second lower door interlocking piece 9 is sleeved on the limiting pin shaft 8, an interlocking pin 11 is arranged at the top of the second lower door interlocking piece 9 and connected with the lock rod 2 through the interlocking pin 11, a fuse bin door interlocking pin 6 is arranged at the bottom of the second lower door interlocking piece 9, and the fuse bin door interlocking pin 6 penetrates the first through hole and the second through hole and is embedded in the fuse bin door of the ring main unit in the longitudinal movement process.

[0054] Through the above technical scheme, the technical effects produced in the embodiment of the present application are as follows:

[0055] When the fuse bin door interlocking piece 5 rotates synchronously in the closing process of the fuse bin door and reaches the maximum closing position, the fuse bin door interlocking piece 5 is clamped with the fuse bin door, at this time, the fuse bin door interlocking piece 5 is located in the fuse bin door support 7, the limiting groove of the fuse bin door interlocking piece 5 corresponds to the positions of the first through hole and the second through hole, the first lower door interlocking piece 1 is rotated by the downward movement of the movable door plate, then the lock rod 2 is longitudinally moved downward, so that the second lower door interlocking piece 9 is longitudinally moved synchronously, and the fuse bin door interlocking pin 6 at the bottom of the second lower door interlocking piece 9 penetrates the grounding interlocking support 12, the first through hole and the second through hole in sequence and is embedded in the limiting hole at the top of the fuse bin door.

[0056] Installation method:

[0057] Limiting pin shaft 8, second lower door interlocking sheet 9, interlocking sheet 10, interlocking pin 11, grounding interlocking support 12, installed in the mechanism room of the ring main unit, (F cabinet only needs to add fuse bin door interlocking piece 5, fuse bin door interlocking pin 6, fuse bin door support 7 on this basis) (interlocking sheet 10, interlocking pin 11 are installed on the panel and can only move in the vertical direction). According to Figure 4 After assembly, the whole is fixed on the mechanism shown in Figure 1 , as shown in Figure 2 .

[0058] The parts of the first lower door interlocking sheet 1, the lower door interlocking support 3, and the lower door interlocking stop sheet 4 are in the cable chamber, and the lock rod 2 penetrates the mechanism chamber and the cable chamber. This part is installed as shown in Figure 3 , (note that, for the convenience of observation, Figure 3 The lower door interlocking stop sheet 4 shown in the middle is in a disassembled state, and in actual installation, it is closer to the first lower door interlocking sheet 1 to play a limiting role). After this assembly is installed, it is fixed on the upper part of the cable chamber by the lower door interlocking support 3, and is connected to the two holes above the lock rod 2 on one side of the fixing sheet, and is clamped in the 002 part on the other side.

[0059] Working principle:

[0060] When in the non-grounding state, the movable part is locked by the mechanism, and when in the grounding state, the interlocking sheet 10 is vertically upwardly slid to drive the interlocking pin 11, so that the 001 part is vertically upwardly moved (the moving direction is limited by the limiting pin shaft 8). At this time, the fuse bin door interlocking pin 6 leaves the hole position of the fuse bin door support 7 and no longer clamps, and the fuse bin door locking is released; the lock rod 2 is also driven by 001 to move vertically upward, and the first lower door interlocking sheet 1 below the lock rod 2 is no longer clamped, and the lower door can be lifted.

[0061] After the lower door is hung, the first lower door interlocking sheet 1 is rotated, and the lock rod 2 is lowered due to gravity and falls into the deeper groove of the first lower door interlocking sheet 1, and the lower door is locked. After the fuse bin door is closed, the fuse bin door interlocking piece 5 rotates to expose the hole position of the fuse bin door support 7 blocked by it, and the interlocking pin 6 falls into the hole position, and the fuse bin door is locked.

[0062] By adopting the mechanical transmission mode, not only the structure is more convenient, but also the transmission effect is more stable, and the first interlocking part 001 and the second interlocking part 002 are linked to further play the effect of forced locking. The whole adopts the design of sheet metal module, which is convenient for subsequent maintenance and installation, solves the problems of easy damage of soft interlocking and poor adaptability of hard interlocking in the industry for a long time, and is especially suitable for combined electrical cabinet scenes with strict requirements for double-bin interlocking.

[0063] In the description of the present application, it needs to be understood that the terms "center", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings based on the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0064] The terms "first", "second", "third", etc. are only for descriptive purpose, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, unless otherwise specified, the meaning of "a plurality of" is two or more.

[0065] In the description of the present application, it needs to be explained that, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connection" should be understood in a broad sense, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through intermediate medium, or the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0066] The various embodiments in the specification are described in a progressive manner, and each embodiment focuses on the difference from other embodiments, and the same or similar parts between various embodiments can be referred to each other. For the device disclosed by the embodiments, since it corresponds to the method disclosed by the embodiments, the description is relatively simple, and the related parts can be referred to the method part description.

[0067] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present application. Various modifications to the embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A universal ring main unit interlocking device, characterized in that, The utility model relates to a combined interlocking device for ring main unit, comprising: a first interlocking component provided on the ring main unit and having a first movable end and a first hanging end, wherein the first hanging end is connected to a movable door plate of the ring main unit; a second interlocking component provided on the ring main unit and having a second movable end and a second hanging end, wherein the second movable end is connected to the first movable end and the second hanging end is connected to a fuse bin door of the ring main unit.

2. The universal ring main unit interlocking device according to claim 1, characterized in that, The first interlocking component has a combined structure, comprising: a lower door interlocking support provided on the ring main unit and fixedly connected to the ring main unit, and having a through hole; a lower door interlocking baffle provided on the lower door interlocking support and fixedly connected to the lower door interlocking support; a first lower door interlocking piece provided on the lower door interlocking support and rotatably connected to the lower door interlocking support, and having a limiting step and a connecting end, wherein the connecting end is connected to the movable door plate of the ring main unit; a lock rod having one end penetrating the through hole of the lower door interlocking support and being in contact with the limiting step of the first lower door interlocking piece, and the other end being connected to the second movable end of the second interlocking component.

3. The universal ring main unit interlocking device according to claim 2, characterized in that, The second interlocking component has a combined structure, comprising: a grounding interlocking support provided on the ring main unit and fixedly connected to the ring main unit, and having a limiting pin shaft; a fuse bin door support provided on the bottom of the grounding interlocking support and fixedly connected to the grounding interlocking support, and having a first through hole and a second through hole; a fuse bin door interlocking piece provided on the fuse bin door support and rotatably connected to the fuse bin door support, and having a limiting groove and a second hanging end at the bottom; a second lower door interlocking piece provided on the grounding interlocking support and slidably connected to the grounding interlocking support, and sleeved on the limiting pin shaft, and having an interlocking pin at the top and being connected to the lock rod through the interlocking pin, and having a fuse bin door interlocking pin at the bottom, and penetrating the first through hole and the second through hole to be embedded in the fuse bin door of the ring main unit during longitudinal movement.

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