A pluggable multi-disc interlocking operating mechanism

Abstract

The application discloses a pluggable multi-disc interlocking operation mechanism, which comprises a fixed support, an operation switch and an interlocking switch, wherein the fixed support is arranged on an operation panel; the operation switch comprises a plurality of operation discs hingedly arranged on the fixed support and a plurality of transmission assemblies hingedly arranged on the fixed support and connected with the operation discs one by one; the interlocking switch comprises a station selection switch arranged on the operation panel and a locking assembly arranged between the fixed support and the station selection switch and acting on the plurality of operation discs; the application is applied to a switch cabinet and can realize sequential control of a plurality of disconnecting switches; the interlocking characteristic can increase the safety in use and avoid the harm caused by misoperation.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of switch cabinet manufacturing, and particularly relates to a pluggable multi-disc interlocking operating mechanism. BACKGROUND

[0002] Since the fixed large-current switch cabinet should be equipped with disconnectors during on-site use, the visible breaking point of the vacuum circuit breaker is formed during maintenance, which is convenient for the safe operation of the maintenance personnel. The disconnector has no current breaking function, and only when the circuit breaker is in the open state, the disconnector can be operated. Before the circuit breaker is closed, the disconnector is closed. In general, the circuit breaker cabinet is equipped with disconnectors on the upper and lower ports of the circuit breaker, and the operation sequence of the disconnectors on the incoming line side and the load side is particularly important, otherwise it will cause personal injury to the operator. In order to avoid the harm caused by misoperation, it is necessary to set an interlocking mechanism which is convenient to operate and beneficial to the sequence control of the disconnector action. SUMMARY

[0003] The present application aims at the deficiencies in the prior art, and provides a pluggable multi-disc interlocking operating mechanism which is applied to a switch cabinet and can realize the sequence control of multiple disconnectors.

[0004] To achieve the above-mentioned purpose, the technical scheme adopted by the present application is:

[0005] A pluggable multi-disc interlocking operating mechanism, comprising:

[0006] A fixed support provided on an operating panel;

[0007] An operating switch, comprising a plurality of operating discs hingedly connected to the fixed support, and a plurality of transmission assemblies hingedly connected to the fixed support and corresponding to the operating discs;

[0008] An interlocking switch, comprising a station selection switch provided on the operating panel, and a locking assembly provided between the fixed support and the station selection switch and acting on the plurality of operating discs.

[0009] Further, the locking assembly comprises a locking plate and a stop pin. The locking plate is in sliding fit with the fixed support and can move transversely relative to the fixed support. The stop pin is in the shape of T as a whole. The stop pin is in sliding fit with the fixed support and can move up and down. One rod end of the stop pin penetrates through the locking plate and extends outside the operating panel. The operating panel is provided with a through hole matched with the lifting of the stop pin. The locking plate is provided with a locking hole matched with the stop pin.

[0010] Further, the locking hole comprises a transversely arranged long strip-shaped hole and a plurality of limiting grooves equidistantly arranged on the lower side edge of the long strip-shaped hole; the number of the limiting grooves is greater than that of the operation discs, the limiting grooves comprise shallow grooves and deep grooves connected through smooth transitions, and the interval between the deep grooves and the shallow grooves of adjacent limiting grooves is equal to the interval between adjacent operation discs.

[0011] Further, the locking pin comprises a locking vertical rod and a lifting rod vertically arranged in the middle of the locking vertical rod; the top end of the locking vertical rod is conical, and the bottom end is provided with a straight rod section with a reduced diameter; the lifting rod is connected with the limiting grooves to transversely lock the locking plate.

[0012] Further, the fixing support comprises a connection frame in the shape of a sun and an ear plate arranged on the two vertical rods of the connection frame; the lower side of the connection frame is provided with guide holes matched with the locking vertical rod on the adjacent two horizontal rods.

[0013] Further, the operation disc is in the shape of a disc, the operation disc is provided with a locking groove matched with the top end of the locking vertical rod, the operation disc is provided with an insertion groove, the insertion groove is provided with a matched operation rod, a plurality of operation discs are hingedly connected on the same first hinging shaft, and the first hinging shaft is hingedly connected on the two vertical rods of the connection frame.

[0014] Further, the transmission assembly comprises a sector plate, a pull head arranged on the sector plate and a crank arm hingedly connected between the sector plate and the operation disc; a plurality of sector plates are hingedly connected on the same second hinging shaft, the second hinging shaft is hingedly connected on the ear plate, the sector plate is provided with a plurality of adjusting holes, and the pull head is connected with one adjusting hole through a pin shaft.

[0015] Further, the station selection switch comprises a control handle hingedly connected on the outside of the operation panel through a third hinging shaft and a shifting fork arranged on one end of the third hinging shaft; the locking plate is provided with a convex shaft matched with the shifting fork.

[0016] The beneficial effects of the present application are:

[0017] In the structural design, the station selection switch is used to select the operation condition, and the non-specified operation condition cannot realize other operations, so that the safety in use can be increased; after the specified operation condition is selected, the locking assembly is used to realize the one-by-one control of the plurality of operation discs, the sequential control of the plurality of isolation switches can be realized, the misoperation can be effectively avoided, and the use is safer and more reliable. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 The figure is a structural schematic diagram of the present application;

[0019] Figure 2 The figure is a front view structural schematic diagram of the present application;

[0020] Figure 3It is the structure schematic view of the interlocking plate in the application.

[0021] Figure 4 It is the structure schematic view of the fixed support in the application.

[0022] Figure 5 It is the structure schematic view of the stop pin in the application.

[0023] Wherein: 1 - operation panel; 2 - fixed support; 3 - operation disc; 4 - station selection switch; 5 - interlocking plate; 6 - stop pin; 7 - long strip hole; 8 - shallow groove; 9 - deep groove; 10 - locking vertical rod; 11 - shifting lever; 12 - connecting frame; 13 - ear plate; 14 - guide hole; 15 - locking groove; 16 - insertion slot; 17 - operation lever; 18 - first hinged shaft; 19 - fan-shaped plate; 20 - pull head; 21 - crank arm; 22 - second hinged shaft; 23 - adjusting hole; 24 - third hinged shaft; 25 - control handle; 26 - shifting fork; 27 - convex shaft; 28 - convex strip. DETAILED DESCRIPTION

[0024] The preferred embodiment of the application is described below in combination with the drawings:

[0025] The following content is described by taking the application of the application on the fixed high-current switch cabinet as an example; the number of operation discs 3 is the same as the number of disconnectors, and two disconnectors are provided for a vacuum circuit breaker, so two operation discs 3 are provided, and therefore, the following description is taken as an example of setting two operation discs 3.

[0026] As shown in Figures 1 to 5 , a pluggable multi-disc interlocking operation mechanism; the interlocking operation mechanism comprises a fixed support 2, an operation switch and an interlocking switch.

[0027] Among them,

[0028] The fixed support 2 provides a basic support function; the fixed support 2 comprises a connecting frame 12 in the shape of a sun and ear plates 13 provided on the two vertical rods of the connecting frame 12; the connecting frame 12 is connected to the operation panel 1 by screws, and the operation panel 1 can be an independent plate body and is fixed on the switch cabinet, or can be a part of the panel of the switch cabinet; the connecting frame 12 is provided with guide holes 14 on the adjacent two horizontal rods on the lower side, and the guide holes 14 are used for cooperating with the stop pins 6 in the locking assembly to realize the movement guiding function of the stop pins 6.

[0029] The operation switch is directly used for controlling the opening and closing of the disconnectors; the operation switch comprises two operation discs 3 hinged to the fixed support 2, and two transmission assemblies hinged to the fixed support 2 and connected to the operation discs 3 one by one; the rotation of the operation disc 3 is controlled, and the action control of multiple disconnectors is realized through the transmission cooperation of the transmission assembly.

[0030] The operation disc 3 is disc-shaped; the operation disc 3 is externally provided with a locking groove 15 for cooperating with the stop pin 6 in the locking assembly to achieve the stop of the operation disc 3; the operation disc 3 is externally provided with an insertion groove 16, the insertion groove 16 is provided with a matched operation lever 17, the operation lever 17 is pluggable, the convenience of operation is increased, a plurality of operation discs 3 can be equipped with one operation lever 17, which is beneficial to saving the manufacturing cost; the two operation discs 3 are hingedly connected on the same first hinging shaft 18, the first hinging shaft 18 is hingedly connected on the two vertical rods of the connecting frame 12, the operation disc 3 partially protrudes on the outer side of the operation panel 1, the operation panel 1 is provided with a hole matched with the outer protruding part of the operation disc 3, and the first hinging shaft 18 can also be hingedly connected on the lug plate 13, so as to reduce the size of the operation disc 3.

[0031] The transmission assembly realizes the rotation control of the large operating shaft of the disconnecting switch based on the rotating action of the operation disc 3, and then realizes the control of the opening and closing of the disconnecting switch; the transmission assembly comprises a sector plate 19, a pull head 20 arranged on the sector plate 19, and a crank arm 21 hingedly connected between the sector plate 19 and the operation disc 3; the two sector plates 19 are hingedly connected on the same second hinging shaft 22, and the second hinging shaft 22 is hingedly connected on the lug plate 13; the sector plate 19 is provided with a plurality of adjusting holes 23, one end of the pull head 20 is connected with one adjusting hole 23 through a pin shaft, the adjusting hole 23 can conveniently adjust the action position of the pull head 20, and the pull head 20 is conveniently connected with the fixed rod on the large operating shaft through the connecting rod; one end of the crank arm 21 is hingedly connected with the sector plate 19, and the other end is hingedly connected with the operation disc 3; in order to reduce the increase of the axial size of the operation disc 3 after being hingedly connected, a matched groove can be arranged in the radial direction on the outer extension of the operation disc 3, the other end of the crank arm 21 is hingedly connected in the groove, and the groove provides accommodation space for the action stroke of the crank arm 21.

[0032] The interlocking switch can realize the locking of the operation disc 3; the interlocking switch comprises a station selection switch 4 arranged on the operation panel 1, and a locking assembly arranged between the fixed support 2 and the station selection switch 4 and acting on the two operation discs 3; the station selection switch 4 can realize the selection of three states of running, maintenance and operation, and realize the corresponding locking control; the locking assembly is controlled by the station selection switch 4, and the locking assembly realizes the on-off control on the operation disc 3.

[0033] The station selection switch 4 comprises a control handle 25 hingedly connected on the outer side of the operation panel 1 through a third hinging shaft 24, and a shift fork 26 arranged on one end of the third hinging shaft 24; the shift fork 26 is U-shaped, the locking assembly is provided with a protruding shaft 27 on the interlocking plate 5, the protruding shaft 27 is matched with the shift fork 26, and the protruding shaft 27 can be shifted during the rotation of the shift fork 26, so as to promote the transverse movement of the interlocking plate 5.

[0034] The locking assembly comprises a locking plate 5 and a locking pin 6; the locking plate 5 is in sliding fit with the fixed support 2 and can move transversely relative to the fixed support 2, and the transverse movement of the locking plate 5 is used to control the longitudinal movement of the locking pin 6; the locking pin 6 is in the shape of T as a whole, and the locking pin 6 is in sliding fit with the fixed support 2 and can move up and down, and the locking pin 6 can realize the locking or unlocking of the operation panel 3 during the up and down movement; one end of the locking pin 6 extends outside the operation panel 1 through the locking plate 5, so that the locking pin 6 is conveniently manually operated; the operation panel 1 is provided with a through hole matched with the lifting of the locking pin 6; the locking plate 5 is provided with a locking hole matched with the locking pin 6, and the locking plate 5 is clamped between the operation panel 1 and the fixed support 2; the fixed support 2 is attached to the operation panel 1, and therefore the fixed support 2 is provided with a groove matched with the locking plate 5, and the locking plate 5 can move transversely in the groove; one side surface of the locking plate 5 is further provided with a protruding strip 28 clamped on the bottom end horizontal rod of the connecting frame, and used for realizing the guiding effect. Figure 3 The second and third limiting grooves from the left are taken as examples, through the cooperation of the locking pin 6, the convenient locking of one operation panel 3 and the interlocking control of another operation panel 3 can be realized, and the control mechanism can be applied.

[0035] The use method and principle of the present application are as follows:

[0036] In the application: the control handle 25 is provided with a disc, the disc is provided with an indicating arrow, three indicating words are arranged on the operation panel 1, and the three indicating words correspond to working states, and the three indicating words are respectively: running, maintenance, and operation; the "running" represents that the current is in a running state, the stop pin 6 and the operation disc 3 are in a locked state, and operation cannot be performed; the "maintenance" represents that the current can be maintained, only one of the stop pin 6 and the operation disc 3 can be operated, and only the breaking of one disconnector can be realized; and the "operation" represents that both of the operation discs 3 can be operated, and the control of two disconnectors is realized. In a normal state, the control handle 25 is indicated at the "running" position; at this time, when the lever 11 is lowered, the lever 11 abuts against the lower edge of the long slot 7, and the lever 11 cannot continue to be lowered, the top end of the locking vertical rod 10 of the stop pin 6 is in cooperation with the locking groove 15, and the operation disc 3 cannot be rotated. When maintenance is required: the control handle 25 is rotated, the control handle 25 drives the fork 26 to rotate through the third hinge shaft 24, the fork 26 drives the convex shaft 27, the convex shaft 27 is guided by the convex strip 28, and the interlocking plate 5 is transversely moved; when the indicating arrow is indicated at the "operation" position, the control of one operation disc 3 can be performed; at this time, one shallow groove 8 corresponds to below one stop pin 6, and the other stop pin 6 corresponds to the lower side edge of the long slot 7; when the control of one operation disc 3 is performed, the operating rod 17 is inserted into the insertion groove 16 of the corresponding operation disc 3, the corresponding lever 11 is first pulled downward, the shallow groove 8 provides a downward accommodation space for the stop pin 6, and the stop pin 6 is released from cooperation with the operation disc 3, then the operation disc 3 is controlled to rotate through the operating rod 17, the operation disc 3 is rotated, the operation disc 3 pulls the sector plate 19 to rotate around the first hinge shaft 18 through the crank arm 21, the sector plate 19 drives the disconnector operation main shaft to rotate through the pull head 20, and then the control of the disconnector is realized; at this time, the other stop pin 6 is in a locked state, and the other operation disc 3 is also in a locked state. The control handle 25 continues to rotate and makes the indicating arrow indicate at the "operation" position, at this time, the control of the other operation disc 3 can be performed, and the control process is the same as that of the control of the previous operation disc 3, and the control process is not described here; the control handle 25 continues to rotate, the interlocking plate 5 is transversely moved, the previous stop pin 6 is separated from the shallow groove 8 and cooperates with the deep groove 9, at this time, the interlocking plate 5 is transversely locked, and the positioning is accurate, and the cooperation of the other stop pin 6 and the shallow groove 8 is ensured. When the maintenance is completed, the stop pin 6 is moved upward, the working position selection switch 4 is rotated to the "running" position, and the interlocking plate 5 is also transversely reset.

[0037] In the application, the working position selection switch 4 can realize the locking control of the stop pin 6, the stop pin 6 can realize the locking control of the operation disc 3, the locking control of the stop pin 6 and the locking control of the operation disc 3 are interlocked with each other, and the locking of the locking assembly to the operation disc 3 has the characteristics of sequential control, the sequential control is suitable for the sequential control of two disconnectors in the switch cabinet, and the safety of the switch cabinet can be ensured.

Claims

1. A pluggable multi-disk interlocking operating mechanism, characterized by, The utility model relates to a kind of interlocking switch, including: fixed support (2) is arranged on operating panel (1);Operating switch, including multiple operating disc (3) articulated in fixed support (2), multiple transmission assemblies articulated in fixed support (2) and corresponding connection with operating disc (3);And Workstation selection switch (4) is arranged on operating panel (1), locking assembly is arranged between fixed support (2) and workstation selection switch (4) and acts on multiple operating disc (3);The locking assembly includes interlocking plate (5) and stop pin (6);The interlocking plate (5) is slidably connected with fixed support (2) and can be moved transversely relative to fixed support (2), the stop pin (6) is integrally formed in T shape, the stop pin (6) is slidably connected with fixed support (2) and can be moved up and down, one rod end of the stop pin (6) penetrates interlocking plate (5) and extends outside operating panel (1), operating panel (1) is provided with through hole suitable for the lifting of stop pin (6), interlocking plate (5) is provided with locking hole matched with stop pin (6), the locking hole includes transversely arranged long strip hole (7), multiple limit grooves are equidistantly arranged on the lower side of long strip hole (7) edge, the number of limit groove is greater than the number of operating disc (3), and the limit groove includes shallow groove (8) and deep groove (9) connected by smooth transition, and the interval of deep groove (9) and shallow groove (8) of adjacent limit groove is equal to the interval of adjacent operating disc (3). The stop pin (6) includes locking vertical rod (10) and vertical rod (11) arranged in the middle of locking vertical rod (10), the top end of the locking vertical rod (10) is conical, and the bottom end is provided with a straight rod segment with reduced diameter, and the vertical rod (11) is matched with the limit groove to transversely lock the interlocking plate (5). The fixed support (2) includes a connection frame (12) in the shape of a sun and an ear plate (13) arranged on the two vertical rods of the connection frame (12), and the lower side of the connection frame (12) is provided with a guide hole (14) matched with the locking vertical rod on the adjacent two horizontal rods. The operating disc (3) is in the shape of a disc, the operating disc (3) is provided with a locking groove (15) matched with the top end of the locking vertical rod (10) outside, the operating disc (3) is provided with a slot (16) outside, the slot (16) is provided with an operating lever (17) matched thereon, multiple operating discs (3) are articulated on a same first articulation shaft (18), and the first articulation shaft (18) is articulated on the two vertical rods of the connection frame (12).

2. A pluggable multi-disk interlocking operating mechanism according to claim 1, characterized in that, The transmission assembly includes a sector plate (19), a puller (20) arranged on the sector plate (19), and a crank arm (21) articulated between the sector plate (19) and the operating disc (3), multiple sector plates (19) are articulated on a same second articulation shaft (22), the second articulation shaft (22) is articulated on the ear plate (13), the sector plate (19) is provided with multiple adjustment holes (23), and the puller (20) is connected with one adjustment hole (23) through a pin shaft.

3. A pluggable multi-disk interlocking operating mechanism according to claim 2, characterized in that, ​ 4. A pluggable multi-disk interlocking operating mechanism according to claim 3, characterized in that, ​ 5. A pluggable multi-disk interlocking operating mechanism as claimed in claim 4, characterized in that, ​ 6. A pluggable multi-disk interlocking operating mechanism as claimed in claim 1, characterized in that, The work station selection switch (4) comprises a control handle (25) hinged outside the operation panel (1) through a third hinging shaft (24), a shift fork (26) arranged at one end of the third hinging shaft (24); the interlocking plate (5) is provided with a convex shaft (27), and the convex shaft (27) cooperates with the shift fork (26).

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