Interlocking mechanism of environment-friendly cabinet

Abstract

The utility model discloses an interlocking mechanism of an environment-friendly cabinet, which comprises a rack, the rack is provided with an opening button operation shaft, an interlocking support and an output shaft used for being connected with an auxiliary switch in a matched mode, the opening button operation shaft is provided with an opening push plate in a linkage mode, and the interlocking support is provided with an interlocking sliding plate I and an interlocking sliding plate II in a sliding mode. The second interlocking sliding plate is used for being matched with the opening push plate; the side portion of the second interlocking sliding plate is provided with a limiting piece used for limiting the opening push plate when the second interlocking sliding plate moves upwards, the second interlocking sliding plate and the limiting piece move synchronously, the limiting piece is provided with a receding guide groove, the extending direction of the receding guide groove is the same as the sliding direction of the limiting piece, and the output shaft penetrates through the receding guide groove. The periphery of the output shaft is attached to the inner wall of the receding guide groove. The interlocking sliding plate has the advantages of high structural strength and long service life, and the reliability of an interlocking mechanism can be improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a switch cabinet technical field, in particular to a kind of interlocking mechanism of environmental protection cabinet. BACKGROUND

[0002] Environmental protection cabinet is a kind of switch cabinet, environmental protection cabinet is usually the structure of upper isolation lower circuit breaker, isolation operating mechanism and circuit breaker operating mechanism are all belong to existing mature operating mechanism, and its specific structure is not described repeatedly;The working principle of isolation operating mechanism and circuit breaker operating mechanism is as follows: isolation operating mechanism includes isolation operating shaft and grounding operating shaft, isolation operating shaft rotates between isolation closing and isolation opening two stations, and grounding operating shaft reciprocatingly rotates between grounding opening and grounding closing;Circuit breaker operating mechanism includes closing knob, closing half shaft, opening knob, opening half shaft and output shaft, rotating closing button can drive closing half shaft to do closing rotation, to drive output shaft to output closing rotation force, rotating opening button can drive opening half shaft to do opening rotation, to drive output shaft to output opening rotation force;

[0003] For the upper isolation circuit breaker switch cabinet (isolation operating mechanism is on, and circuit breaker operating mechanism is below), to ensure the safety when operating, to ensure that interlocking between mechanism meets the following requirements;When circuit breaker mechanism is in closing position, isolation / grounding operating shaft cannot be operated;When circuit breaker mechanism is in opening position, lower door cannot be opened, and isolation / grounding operating shaft can be operated;When isolation / grounding operating shaft is in opening position, circuit breaker mechanism cannot be closed, and lower door cannot be opened;When isolation operating shaft is in closing position, lower door cannot be opened, and grounding operating shaft cannot be operated;When grounding switch is in grounding position, isolation switch cannot be operated;Only when grounding operating shaft is in grounding position and circuit breaker mechanism is closed, lower door can be opened;When lower door is opened, circuit breaker mechanism cannot be opened, and grounding / isolation operating shaft cannot be operated;For these requirements, it belongs to the safety requirement of switch cabinet in industry.The interlocking mechanism in existing switch cabinet usually realizes the above requirements by operating two interlocking slides, when lower door needs to be opened for maintenance, in the state that circuit breaker is closed, interlocking slide one is pushed upwards to make isolation mechanism unable to open and close, at this time, lower door is unlocked, lower door is opened, interlocking slide two is pushed upwards again and abuts against opening push plate, so that circuit breaker cannot be opened, at this time, circuit breaker is closed and not electrified, it is safe state, and maintenance operation is allowed.In the structure, interlocking slide two is limited by abutting against opening push plate through the bending structure on its body, since the bending structure has poor strength, deformation is prone to occur after frequent use, and service life is relatively short, therefore, it is necessary to improve the structure. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a kind of interlocking mechanism of environmental protection cabinet, the utility model interlocking slide has the advantages of high structural strength and long service life, and can improve the reliability of interlocking mechanism.

[0005] In order to achieve the above object, the utility model provides the following technical scheme: the interlocking mechanism of environmental protection cabinet, including frame, the frame is equipped with the button operation shaft of disconnecting, the interlocking support and the output shaft for connecting with the auxiliary switch cooperation, the disconnecting button operation shaft is connected with the disconnecting push plate of linkage, the interlocking support is equipped with the interlocking slide plate no. 1 and the interlocking slide plate no. 2 of sliding, and the interlocking slide plate no. 2 is used for forming the limit with disconnecting push plate in cooperation, the side of the interlocking slide plate no. 2 is equipped with the limiting piece for forming the limit of disconnecting push plate when the interlocking slide plate no. 2 goes up, the interlocking slide plate no. 2 and limiting piece synchronous motion, the limiting piece is equipped with the let go guide slot, the extension direction of let go guide slot is same with the sliding direction of limiting piece, the output shaft passes through let go guide slot, and the periphery of output shaft is attached with the inner wall of let go guide slot.

[0006] By adopting the above technical scheme, when the lower door needs to be opened for maintenance, the interlocking slide plate no. 1 is pushed up to make the isolation mechanism unable to open and close under the circuit breaker closing state, at this time, the lower door is unlocked, the lower door is opened, and then the interlocking slide plate no. 2 is pushed up, the limiting piece on the interlocking slide plate no. 2 abuts against the disconnecting push plate, and the disconnecting push plate is limited, so that the circuit breaker cannot be opened, at this time, the circuit breaker is closed without electricity, which belongs to secondary grounding and is a safe state, allowing maintenance operation. In the structure, the limiting piece on the interlocking slide plate no. 2 is supported by the output shaft, has high structural strength, is not easy to deform, has longer service life, and can significantly improve the reliability of the interlocking mechanism.

[0007] The utility model further sets up, limiting piece is detachably installed on the interlocking slide plate no. 2 through fastener.

[0008] By adopting the above technical scheme, the detachable mounting structure of the limiting piece has good design flexibility, and can be designed in correspondence with different circuit breaker output shafts and disconnecting push plate structures and setting positions.

[0009] The utility model further sets up, the limiting piece includes the mounting plate, the horizontal extension plate and the limiting plate of integral type structure, the mounting plate is connected with the interlocking slide plate no. 2 through fastener, and the let go guide slot is set up on the limiting plate.

[0010] By adopting the above technical scheme, it is the specific structure of the limiting piece, which is simple and reliable, high in strength and beneficial to machining and assembly.

[0011] The utility model further sets up, the let go guide slot extends downward from the upper end of the limiting plate.

[0012] By adopting the above technical scheme, the let go guide slot is open at one end, which is not only beneficial to machining, but also facilitates the assembly of the limiting piece and the output shaft. The limiting piece can be removed without disassembling the output shaft, which is very convenient to disassemble and assemble.

[0013] The utility model further sets up, the upper end of spacing plate is equipped with chamfer.

[0014] Through adopting above -mentioned technical scheme, avoid spacing plate and the cooperation of brake push plate, because the damage of both due to stress concentration when impacting.

[0015] The utility model further sets up, the spacing piece and interlocking slide plate two are integral type structure.

[0016] Through adopting above -mentioned technical scheme, it is another setting mode of spacing piece, and the spacing piece and interlocking slide plate two are integral type structure, high strength, and quick assembly.

[0017] The utility model further sets up, interlocking slide plate two still be equipped with limit bending on, the output shaft is linked and is installed with the cam for the limit bending of driving limit bending down.

[0018] Through adopting above -mentioned technical scheme, when circuit breaker brake, the output shaft drives the rotation of cam, and cam promotes limit bending, can realize interlocking slide plate two down reset.

[0019] The utility model further sets up, interlocking slide plate one and interlocking slide plate two all are installed on interlocking support through a plurality of fasteners, and interlocking slide plate one and interlocking slide plate two all are equipped with a plurality of vertical extension for the strip -shaped guide hole of corresponding fastener passes.

[0020] Through adopting above -mentioned technical scheme, can realize the up and down directional slip of interlocking slide plate one and interlocking slide plate two, and simple and reliable structure. DETAILED DESCRIPTION

[0021] Fig. 1 It is the whole structure schematic view of the utility model;

[0022] Fig. 2 It is the local structure schematic view of the utility model;

[0023] Fig. 3 It is the cooperation structure schematic view of interlocking slide plate two and spacing piece of the utility model.

[0024] In the drawing: 1, rack;2, brake button operation shaft;3, interlocking support;4, output shaft;5, brake push plate;6, interlocking slide plate one;7, interlocking slide plate two;8, spacing piece;9, let place guide groove;10, mounting plate;11, horizontally extending plate;12, spacing plate;13, chamfer;14, limit bending;15, cam;16, strip -shaped guide hole. DETAILED DESCRIPTION

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Example: As attached Figs. 1-3 The interlocking mechanism of the environmental protection cabinet shown includes a frame 1. The frame 1 is equipped with a trip button operating shaft 2, an interlocking bracket 3, and an output shaft 4 for connecting with an auxiliary switch. A trip push plate 5 is installed on the trip button operating shaft 2. An interlocking slide plate 6 and an interlocking slide plate 7 are slidably arranged on the interlocking bracket 3. The interlocking slide plate 7 is used to limit the trip push plate 5 when it cooperates with it. The side of the interlocking slide plate 7 is provided with a limiting member 8 for limiting the trip push plate 5 when the interlocking slide plate 7 moves upward. The interlocking slide plate 7 and the limiting member 8 move synchronously. The limiting member 8 is provided with a clearance guide groove 9. The extension direction of the clearance guide groove 9 is the same as the sliding direction of the limiting member 8. The output shaft 4 passes through the clearance guide groove 9, and the outer periphery of the output shaft 4 is in contact with the inner wall of the clearance guide groove 9. When the lower door needs to be opened for maintenance, with the circuit breaker closed, push the interlocking slide plate 6 upwards to prevent the isolating mechanism from opening or closing. At this time, the lower door unlocks and opens. Then, push the interlocking slide plate 7 upwards. The limit piece 8 on the interlocking slide plate 7 abuts against the tripping push plate 5, limiting the tripping push plate 5 and preventing the circuit breaker from tripping. At this time, the circuit breaker is closed but not energized, belonging to secondary grounding, which is a safe state, allowing maintenance operations. In this structure, the limit piece 8 on the interlocking slide plate 7 is supported by the output shaft 4, resulting in high structural strength, resistance to deformation, and a longer service life, significantly improving the reliability of the interlocking mechanism.

[0027] As attached Fig. 2 and attached Fig. 3 As shown, the limiting member 8 can be detachably installed on the interlocking slide plate 7 using fasteners, which can be screws. The detachable installation structure of the limiting member 8 is the first setting method of the limiting member 8, which has good design flexibility and can be designed to match different circuit breaker output shafts 4 and trip push plate 5 structures and setting positions.

[0028] As attached Fig. 2 and attached Fig. 3As shown, the limiting member 8 includes mounting plate 10, horizontally extending plate 11 and limiting plate 12 in one-piece structure, the mounting plate 10 and the limiting plate 12 are parallel to each other, the horizontally extending plate 11 is arranged between the two and is perpendicular to both, the mounting plate 10 is connected with the interlocking slide plate two 7 through fasteners (screws), and the giving-way guide groove 9 is arranged on the limiting plate 12. It is the specific structure of the limiting member 8, which is simple and reliable in structure, high in strength and beneficial to processing and assembly.

[0029] As shown in the accompanying drawings Fig. 2 and the accompanying drawings Fig. 3 As shown, the giving-way guide groove 9 extends downward from the upper end of the limiting plate 12. The giving-way guide groove 9 is open at one end, which is not only beneficial to processing, but also facilitates the assembly and cooperation of the limiting member 8 and the output shaft 4. The limiting member 8 can be removed without disassembling the output shaft 4, which is very convenient to disassemble and assemble.

[0030] As shown in the accompanying drawings Fig. 2 and the accompanying drawings Fig. 3 As shown, the upper end of the limiting plate 12 is provided with a chamfer 13, which can also be a round corner. This design avoids damage to the limiting plate 12 and the split push plate 5 when they are matched due to stress concentration caused by impact.

[0031] Among them, the limiting member 8 and the interlocking slide plate two 7 can also be in one-piece structure. It is another setting way of the limiting member 8, which is in one-piece structure with the interlocking slide plate two 7, high in strength and fast in assembly.

[0032] As shown in the accompanying drawings Fig. 2 and the accompanying drawings Fig. 3 As shown, the interlocking slide plate two 7 is further provided with a limiting bend 14, and the output shaft 4 is connected with a cam 15 for driving the limiting bend 14 downward. When the circuit breaker is split, the output shaft 4 drives the cam 15 to rotate, and the cam 15 pushes the limiting bend 14, so that the interlocking slide plate two 7 can be reset downward.

[0033] As shown in the accompanying drawings Fig. 2 Fig. 3 Figs. 1-3 As shown, the interlocking slide plate one 6 and the interlocking slide plate two 7 are installed on the interlocking bracket 3 through a plurality of fasteners, and a plurality of vertical strip-shaped guide holes 16 for the corresponding fasteners to pass through are arranged on the interlocking slide plate one 6 and the interlocking slide plate two 7. This design can realize the upward and downward directional sliding of the interlocking slide plate one 6 and the interlocking slide plate two 7, which is simple and reliable in structure.

Claims

1. An interlocking mechanism of an environmentally-friendly cabinet, comprising a frame (1), a tripping button operating shaft (2), an interlocking support (3) and an output shaft (4) for cooperating with an auxiliary switch being arranged on the frame (1), a tripping push plate (5) being linked and installed on the tripping button operating shaft (2), an interlocking slide plate one (6) and an interlocking slide plate two (7) being slidably arranged on the interlocking support (3), the interlocking slide plate two (7) being used for limiting the tripping push plate (5) in cooperation with the tripping push plate (5); characterized in that: The side of the interlocking slide plate two (7) is provided with a limiting piece (8) for limiting the push plate (5) when the interlocking slide plate two (7) is ascending, the interlocking slide plate two (7) and the limiting piece (8) move synchronously, the limiting piece (8) is provided with a let-out guide slot (9), the extension direction of the let-out guide slot (9) is the same as the sliding direction of the limiting piece (8), the output shaft (4) penetrates the let-out guide slot (9), and the outer periphery of the output shaft (4) is attached to the inner wall of the let-out guide slot (9).

2. The interlock mechanism for an environmentally friendly cabinet of claim 1, wherein: The limiting piece (8) is detachably installed on the interlocking slide plate two (7) through fasteners.

3. The interlock mechanism for an environmentally friendly cabinet of claim 2, wherein: The limiting piece (8) comprises an integral mounting plate (10), a horizontally extending plate (11) and a limiting plate (12), the mounting plate (10) is connected with the interlocking slide plate two (7) through fasteners, and the let-out guide slot (9) is arranged on the limiting plate (12).

4. The interlock mechanism for an environmentally friendly cabinet of claim 3, wherein: The let-out guide slot (9) extends downward from the upper end of the limiting plate (12).

5. The interlock mechanism for an environmentally friendly cabinet of claim 3, wherein: The upper end of the limiting plate (12) is provided with a chamfer (13).

6. The interlock mechanism for an environmentally friendly cabinet of claim 1, wherein: The limiting piece (8) and the interlocking slide plate two (7) are in an integral structure.

7. The interlock mechanism for an environmentally friendly cabinet of claim 1, wherein: The interlocking slide plate two (7) is further provided with a limiting bending (14), and the output shaft (4) is connected with a cam (15) for driving the limiting bending (14) to descend.

8. The interlock mechanism for an environmentally friendly cabinet of claim 1, wherein: The interlocking slide plate one (6) and the interlocking slide plate two (7) are installed on the interlocking support (3) through a plurality of fasteners, and a plurality of vertical strip-shaped guide holes (16) for the corresponding fasteners are arranged on the interlocking slide plate one (6) and the interlocking slide plate two (7).

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