CN218123288U

CN218123288U - Electric earthing switch interlocking device

Info

Publication number: CN218123288U
Application number: CN202222466936.6U
Authority: CN
Inventors: 朱世荣; 俞杰; 吉平
Original assignee: Shanghai Sgeg Group Co ltd
Current assignee: Shanghai Sgeg Group Co ltd
Priority date: 2022-09-16
Filing date: 2022-09-16
Publication date: 2022-12-23
Anticipated expiration: 2032-09-16

Abstract

The utility model discloses an electric earthing switch interlocking device, which belongs to the field of medium-voltage distribution equipment switch cabinets and comprises a cabinet body side plate with a notch, a positioning piece arranged on the inner side of the cabinet body side plate, a sliding plate arranged between the cabinet body side plate and the positioning piece, and an operating shaft arranged on the inner side of the cabinet body side plate, wherein one end of the sliding plate extends out of the notch, a reset spring is arranged on the sliding plate, and a limiting assembly, a first cam piece and a second cam piece are fixedly connected on the operating shaft along the axis direction in sequence; a limiting space is arranged on the limiting assembly, and one end of the positioning piece is arranged in the limiting space; the sliding plate is provided with a first sliding plate surface and a second sliding plate surface, and when the highest point of the first cam piece is pre-pressed with the first sliding plate surface, the lowest point of the second cam piece is in contact with the second sliding plate surface. Through the utility model discloses, can with mechanical type subassembly inter combination, avoid appearing mechanical jamming and prevent that the slide warp to promote holistic power consumption and maintenance safety.

Description

Electric earthing switch interlocking device

Technical Field

The utility model relates to an electronic earthing switch interlock belongs to middling pressure distribution equipment cubical switchboard technical field.

Background

In the technical field of medium-voltage distribution equipment switch cabinets, in order to avoid body injury caused by the fact that an operator touches high voltage by mistake, the grounding switch is created for the purpose, the operating shaft is leaked out by manually pressing the sliding plate downwards, then the operating handle is inserted into the operating shaft, the operating shaft is driven to rotate by the operating handle, and the grounding switch at the end part is closed in place along with the rotation of the operating shaft, so that the grounding purpose is achieved. In the manual mode, the sliding plate needs to be manually pressed down during operation, so that the operating shaft is exposed, and after the grounding switch is switched on in place, the cam sheet is horizontally contacted with the surface of the sliding plate, so that the sliding plate cannot be reset.

Meanwhile, under the wave of all things interconnection, the interconnection technology is closely linking equipment, services and people together, and the concept of the internet of things is practiced, so that accurate and rapid active services are provided. In the future, electrical equipment must be upgraded towards the direction of intellectualization, energy conservation and environmental protection, and the electrified world must develop greatly. It is therefore a necessary trend for products of electrically operated devices to replace products of purely manually operated devices. Therefore, electric earthing switches have appeared on the market at present; namely, the motor is used for driving the operating shaft to rotate, so that the aim of closing the grounding switch to the position is fulfilled.

However, in the operation process of the existing electric grounding switch, only one cam sheet is used for pressing down the sliding plate, but when the appearance of the cam sheet is too small, the cam sheet cannot be in contact with the surface of the sliding plate, so that the sliding plate cannot be pressed down, the grounding switch is easy to generate a clamping stagnation phenomenon in the opening process, and when the appearance of the cam sheet is too large, the cam sheet can interfere with the side plate of the cabinet body, and the sliding plate is easy to deform. However, in the prior art, a cam piece with a proper size cannot be selected, so that the prior operating device cannot meet the operating requirements of the electric grounding switch.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the technical problem that will solve lies in: the utility model provides an electronic earthing switch interlock can with mechanical type subassembly inter combination, avoids appearing mechanical clamping stagnation and prevents that the slide warp to promote holistic power consumption and maintenance safety.

The utility model discloses the technical problem that will solve takes following technical scheme to realize:

an electric earthing switch interlocking device comprises a cabinet body side plate with a notch, a positioning piece arranged on the inner side of the cabinet body side plate, a sliding plate arranged between the cabinet body side plate and the positioning piece, and an operating shaft arranged on the inner side of the cabinet body side plate, wherein one end of the sliding plate extends out of the notch, a return spring is arranged on the sliding plate, and a limiting assembly, a first cam piece and a second cam piece are fixedly connected to the operating shaft in sequence along the axis direction;

a limiting space is arranged on the limiting assembly, and one end of the positioning piece is arranged in the limiting space;

the sliding plate is provided with a first sliding plate surface and a second sliding plate surface, and when the highest point of the second cam piece is pre-pressed with the second sliding plate surface, the lowest point of the first cam piece is in contact with the first sliding plate surface.

This device increases a cam piece on the earthing switch subassembly basis of current manual formula, wherein, be provided with respectively on the slide with first cam piece, the first slide face that second cam piece corresponds in proper order, the second slide face, when the peak of second cam piece and second slide face pre-compaction, the minimum and the first slide face contact of first cam piece, because there is the difference in height between a slide face, the second slide face, consequently, can divide two sections to push down the slide, thereby through first cam piece, the slide is pushed down in the segmentation of second cam piece, thereby make electrodynamic type earthing switch possess the mechanical structure subassembly of manual earthing switch, under the mutually supporting of two cam pieces, avoid appearing mechanical clamping stagnation and prevent that the slide warp, thereby promote holistic power consumption and maintenance safety. Meanwhile, the operating shaft can be mechanically rotated through the operating handle, so that the purpose of manually closing the brake is achieved, and the redundancy function is achieved.

As a preferable example, the sliding plate is provided with a sliding groove, the cabinet side plate is fixedly connected with the positioning piece through a bolt, and the bolt is arranged in the sliding groove.

The arrangement of the sliding groove is convenient for the bolt to slide in the sliding groove.

As a preferred example, the limiting component is a fan-shaped limiting block fixed on the operating shaft, two edges of the fan-shaped limiting block are respectively a closing limiting end and an opening limiting end, and a limiting space is formed between the closing limiting end and the opening limiting end.

As a preferred example, the positioning element includes a mounting seat fixedly connected to the side plate of the cabinet, and a protrusion is disposed on the mounting seat and disposed in the limiting space.

The convex block is arranged in the limiting space and limited by the limiting space, and when the operating shaft drives the fan-shaped limiting block to rotate, the convex block is in contact with the closing limiting end, which means that the closing is in place; when the bump contacts with the limit end of the opening, it means that the opening is in place.

As a preferred example, the cross section of the operating shaft is hexagonal, and the fixing ends of the limiting assembly, the first cam piece, the second cam piece and the operating shaft are all hexagonal holes.

Because the hexagon has six edges, the hexagon and the operating handle can be mutually clamped, and the operating shaft can be rotated through the operating handle.

As a preferred example, the extended end of the sliding plate is provided with a press tongue.

The purpose of the pressure tongue is that an operator can manually press the pressure tongue to achieve the purpose of leaking the operating shaft. Wherein, the pressure tongue is a common mechanical component of the mechanical grounding switch.

As a preferable example, the return spring is arranged between the side plate of the cabinet body and the sliding plate. The reset spring is used for completing gliding action when the sliding plate finishes, and after the switching-off operation or the switching-on operation is completed, the sliding plate automatically resets, the notch of the side plate of the cabinet body is covered, and dust is prevented from entering the cabinet body.

The utility model has the advantages that:

(1) Through the utility model discloses, increase a cam piece on the earthing switch subassembly basis of current manual formula, wherein, be provided with respectively on the slide with first cam piece, the first slide face that second cam piece corresponds in proper order, the second slide face, when the peak of second cam piece and second slide face pre-compaction, the minimum and the first slide face contact of first cam piece, because a slide face, there is the difference in height between the second slide face, consequently, can divide two sections to push down the slide, thereby through first cam piece, the slide is pushed down in the segmentation of second cam piece, again because the contact surface of two cam pieces is the gradual change formula circular arc transition of radius by little grow, mechanical jamming and the phenomenon that the slide warp appear easily in the earthing switch of having avoided electrodynamic type.

(2) Through the utility model discloses, the lug of addding spacing subassembly and setting element is mutually supported and is fan-shaped stopper and lug mutually supported to can drive fan-shaped stopper pivoted in-process at the operating axis, contact each other when lug and the spacing end of combined floodgate, thereby can realize that the switching-on targets in place and the switching-off targets in place.

(3) Through the utility model discloses, can also pass through the rotation operation axis of operating handle mechanical type to realize the purpose of manual combined floodgate, realize redundant function.

Drawings

Fig. 1 is a schematic overall structure diagram of the present invention;

FIG. 2 is a schematic structural view of the slide plate of the present invention;

FIG. 3 is a schematic structural view of the positioning member of the present invention;

FIG. 4 is a schematic view of the assembly of the slide plate and the positioning member of the present invention;

FIG. 5 is a perspective view of the slide board of the present invention;

FIG. 6 is a schematic view of the assembly of the positioning member and the limiting assembly of the present invention;

fig. 7 is a partial schematic view of fig. 6 in accordance with the present invention;

fig. 8 is a schematic structural view of the limiting assembly of the present invention;

fig. 9 is a schematic view of the opening state of the present invention;

fig. 10 is a schematic diagram of the closing state of the present invention;

fig. 11 is a connection diagram of the operation shaft and the isolation assembly according to the present invention.

In the figure: 1. the cabinet body side plate comprises a cabinet body side plate 2, a positioning piece 21, a mounting seat 22, a bump 3, a sliding plate 31, a first sliding plate surface 32, a second sliding plate surface 33, a sliding groove 34, a pressing tongue 35, a round hole 4, an operating shaft 5, a reset spring 6, a limiting component 61, a limiting space 62, a closing limiting end 63, a separating limiting end 7, a first cam piece 8, a second cam piece 9, a motor transmission gear 10, a bevel gear 11, an isolating component 111 and a driving shaft.

Detailed Description

In order to make the technical means, the creation features, the achievement purposes and the functions of the present invention easy to understand and understand, the present invention will be further described with reference to the following embodiments.

In the description of the present invention, it should be understood that the terms "lateral", "longitudinal", "end", "edge", "side wall", "upper", "lower", "directly above", "surface", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", "end", etc. indicate the orientation or positional relationship indicated based on the drawings, and are only for the convenience of describing the technical solution of the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.

Examples

As shown in fig. 1, an electric ground switch interlocking device includes a cabinet side plate 1 with a notch, a positioning member 2 installed inside the cabinet side plate 1, a sliding plate 3 disposed between the cabinet side plate 1 and the positioning member 2, and an operating shaft 4 transversely disposed inside the cabinet side plate 1 relative to the notch, wherein one end of the sliding plate 3 extends out of the notch, and the extending end of the sliding plate is a pressing tongue 34, and the pressing tongue 34 is used for an operator to manually press the pressing tongue 34 to achieve the purpose of leaking the operating shaft 4. The latch 34 is a common mechanical component of the mechanical grounding switch. A return spring 5 is fixedly arranged between the cabinet side plate 1 and the sliding plate 3, wherein one end of the return spring 5 is arranged on a 35 round hole of the sliding plate 3 shown in figure 5.

Wherein slide 3 hangs slide 3's one end on cabinet body side plate 1 through reset spring 5, and during initial position, slide 3 covers the breach of cabinet body side plate 1, and at this moment, operating shaft 4 has not leaked from the breach yet, and when slide 3 received the holding down force, reset spring was stretched, and the breach exposes gradually, and operating shaft 4 shows from the breach promptly.

The operating shaft 4 is sequentially and fixedly connected with a limiting assembly 6, a first cam piece 7 and a second cam piece 8 in a clearance mode along the axis direction, the sliding plate 3 is respectively provided with a first sliding plate surface 31 and a second sliding plate surface 32 which sequentially correspond to the first cam piece 7 and the second cam piece 8, the first sliding plate surface 31 and the second sliding plate surface 32 have a height difference, and when the highest point of the second cam piece 8 is prepressed with the second sliding plate surface 32, the lowest point of the first cam piece 7 is in contact with the first sliding plate surface 31; the first cam piece 7 and the second cam piece 8 are both in cam structures, so that the cam structure has a highest point and a lowest point, wherein the highest point is the highest salient point position of the cam, and the lowest point position of the cam is the lowest point position of the lowest point.

The cross section of the operating shaft 4 is hexagonal, and the fixing ends of the limiting component 6, the first cam piece 7, the second cam piece 8 and the operating shaft 4 are hexagonal holes. Because the hexagon has six edges, it can block joint each other with the operating handle, can rotate operating shaft 4 through the operating handle.

Referring to fig. 7-8, a limiting space 61 is provided on the limiting component 6, and one end of the positioning element 2 is disposed in the limiting space 61. The limiting component 6 is a fan-shaped limiting block fixed on the operating shaft 4, two edges of the fan-shaped limiting block are respectively a closing limiting end 62 and an opening limiting end 63, and a limiting space 61 is formed between the closing limiting end 62 and the opening limiting end 63.

Referring to fig. 2 or 5, the sliding plate 3 is provided with a sliding groove 33, the cabinet side plates 1 and the blocks are fixedly connected through bolts, and the bolts are arranged in the sliding groove 33. In particular, the slot 33 is arranged to facilitate the sliding of the bolt in the slot 33.

Referring to fig. 2-7, the positioning member 2 includes a mounting seat 21 fixedly connected to the cabinet side plate 1, a protrusion 22 is disposed on the mounting seat 21, and the protrusion 22 is disposed in the limiting space 61. When the bump 22 is placed in the limiting space 61, it is limited by the limiting space 61, and when the operating shaft 4 drives the fan-shaped limiting block to rotate, the bump 22 contacts the closing limiting end 62, which means that the closing is in place, that is, the state shown in fig. 10; when the bump 22 and the opening limiting end 63 contact each other, it means that the opening is in place, i.e. the state shown in fig. 9.

The device is additionally provided with a second cam sheet 8 on the basis of the existing manual grounding switch assembly, wherein a first slide plate surface 31 and a second slide plate surface 32 which sequentially correspond to a first cam sheet 7 and a second cam sheet 8 are respectively arranged on a slide plate 3, when the highest point of the second cam sheet 8 is pre-pressed with the second slide plate surface 32, the lowest point of the first cam sheet 7 is contacted with the first slide plate surface 31, and the slide plate 3 can be pressed down in two sections due to the height difference between the first slide plate surface 31 and the second slide plate surface 32, so that the slide plate 3 is pressed down in sections through the first cam sheet 7 and the second cam sheet 8, and the electric grounding switch is provided with a mechanical structure assembly of the electric manual grounding switch, the phenomena that the mechanical clamping stagnation and the slide plate deformation are easy to occur to the grounding switch of the electric grounding switch are avoided, and the whole electricity utilization and maintenance safety are improved. Meanwhile, the operating shaft 4 can be mechanically rotated through the operating handle, so that the purpose of manually closing the brake is achieved, and the redundancy function is achieved.

Wherein, referring to fig. 11, the operating shaft 4 is rotatably connected with the driving shaft 111 of the isolation assembly 11 through the bevel gear 10, and the driving shaft 111 is connected with the motor drive through the motor drive gear 9, and the connection mode and the operation of closing and opening the brake of the operating shaft 4 through the motor drive grounding switch are the prior art, and at the same time, the part is irrelevant to the present invention, and therefore, the description is not accumulated here.

With the operating device, when the grounding switch is switched on (clockwise rotation), the second cam piece 8 is firstly pressed to the position of the second slide plate surface 32 of the slide plate 3, the operating shaft 4 continues to rotate along with the motor, and when the highest point of the second cam piece 8 is pre-pressed with the second slide plate surface 32, the lowest point of the first cam piece 7 is contacted with the first slide plate surface 31; after the switch is switched on in place, the first cam piece 7 is in horizontal contact with the first slide plate surface 31, so that the grounding switch can be switched on smoothly.

The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the above-described embodiments, and that various changes and modifications may be made without departing from the spirit and scope of the invention, and such changes and modifications are intended to be included within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. An electric earthing switch interlocking device comprises a cabinet body side plate (1) with a notch, a positioning piece (2) installed on the inner side of the cabinet body side plate (1), a sliding plate (3) arranged between the cabinet body side plate (1) and the positioning piece (2), and an operating shaft (4) arranged on the inner side of the cabinet body side plate (1), wherein one end of the sliding plate (3) extends out of the notch, and a reset spring (5) is arranged on the sliding plate (3), and is characterized in that a limiting assembly (6), a first cam piece (7) and a second cam piece (8) are fixedly connected to the operating shaft (4) along the axis direction in sequence;

a limiting space (61) is arranged on the limiting assembly (6), and one end of the positioning piece (2) is arranged in the limiting space (61);

the sliding plate (3) is provided with a first sliding plate surface (31) and a second sliding plate surface (32), and when the highest point of the second cam piece (8) is pre-pressed with the second sliding plate surface (32), the lowest point of the first cam piece (7) is contacted with the first sliding plate surface (31).

2. An electric earthing switch interlocking device according to claim 1, characterized in that a sliding slot (33) is arranged on the sliding plate (3), the side plate (1) of the cabinet body is fixedly connected with the positioning piece (2) through a bolt, and the bolt is arranged in the sliding slot (33).

3. The interlocking device of the electric grounding switch according to claim 1, wherein the limiting component (6) is a fan-shaped limiting block fixed on the operating shaft (4), two edges of the fan-shaped limiting block are respectively a closing limiting end (62) and an opening limiting end (63), and a limiting space (61) is formed between the closing limiting end (62) and the opening limiting end (63).

4. The interlocking device of the electric grounding switch according to claim 1, wherein the positioning member (2) comprises a mounting seat (21) fixedly connected with the cabinet body side plate (1), a convex block (22) is arranged on the mounting seat (21), and the convex block (22) is arranged in the limiting space (61).

5. The interlocking device of the electric earthing switch according to claim 1, characterized in that the cross-section of the operating shaft (4) is hexagonal, and the fixing ends of the limiting component (6), the first cam piece (7), the second cam piece (8) and the operating shaft (4) are hexagonal holes.

6. An electric earthing switch interlock according to claim 1, characterized in that the extended end of the slide (3) is provided with a press tongue (34).

7. An electric earthing switch interlock according to claim 1, characterized in that the return spring (5) is installed between the cabinet side plate (1) and the sliding plate (3).