CN218384966U

CN218384966U - Cabinet door interlocking structure of switch cabinet

Info

Publication number: CN218384966U
Application number: CN202222748100.5U
Authority: CN
Inventors: 王书坤; 谢礼馨; 黄勤飞; 齐庆建
Original assignee: Ouyue Power Technology Co ltd
Current assignee: Ouyue Power Technology Co ltd
Priority date: 2022-10-18
Filing date: 2022-10-18
Publication date: 2023-01-24
Anticipated expiration: 2032-10-18

Abstract

The utility model discloses a cabinet door interlocking structure of cubical switchboard, including interlocking subassembly, the gag lever post, limiting plate and elasticity reset structure, interlocking subassembly reciprocating motion sets up between earthing switch's operating axis and lower cabinet door, its upper end is equipped with the separation blade spare, the gag lever post is fixed at interlocking subassembly's lower extreme, lower cabinet door forms spacing cooperation through limiting plate and gag lever post when closing, namely realize the linkage cooperation between lower cabinet door and the interlocking subassembly, when earthing switch's operating axis is in the ground connection separating brake state, separation blade spare is restricted by the operating axis and can not upward movement, just so restricted whole interlocking subassembly and can not move, at this moment lower cabinet door is stopped by interlocking subassembly spacing and can not be lifted upwards and opened; this kind of cabinet door interlocking structure realizes can't open lower cabinet door when earthing switch is in the separating brake state, can prevent personnel's maloperation like this, and the electrified clearance is gone into to the mistake, and interlocking cooperation reliability is high, improves the security that the cubical switchboard used.

Description

Cabinet door interlocking structure of switch cabinet

Technical Field

The utility model relates to a supply distribution technical field, concretely relates to cabinet door interlocking structure of cubical switchboard.

Background

The switch cabinet is a group of electric equipment which is arranged in a metal or nonmetal insulating cabinet body or is made into an assembled interval type ring network power supply unit, and plays a role in controlling and protecting a power distribution network, a cable line and the electric equipment. In order to ensure the safe operation of a power grid, ensure the safety of equipment and personnel and prevent misoperation, the switching equipment is required to meet the five-prevention interlocking requirement of safe operation by regulation.

The existing switch cabinet comprises a load switch, a grounding switch and an operating mechanism which are installed in a cabinet body, the lower portion of the cabinet body is a cable chamber connected with a cable, the grounding switch in the switch device is located at a grounding switch-off position, an operator opens a cabinet door to remove the misoperation of the cable chamber under the condition of unconsciousness, potential safety hazards exist, and safety accidents occur easily. Therefore, in the working process of the switch equipment, the lower cabinet door of the cable chamber is required to be locked, and in order to meet the interlocking requirement of safe operation, a cabinet door interlocking structure is urgently required to be developed and designed on the basis of the switch equipment at the present stage so as to meet the interlocking requirement: the lower door plate can be opened only under the condition that the grounding switch is in grounding closing, and the grounding switch can be operated when the lower door plate is closed, so that the use safety is guaranteed.

SUMMERY OF THE UTILITY MODEL

Therefore, the utility model aims to overcome exist among the prior art not enough to a cabinet door interlocking structure who prevents down the cabinet door and is opened under earthing switch is in the separating brake state is provided, in order to satisfy interlocking operation requirement, uses safe and reliable's cubical switchboard.

In order to solve the technical problem, the utility model provides a cabinet door interlocking structure of a switch cabinet, which comprises a grounding switch arranged on a cabinet body, a lower cabinet door and a hook used for locking the lower cabinet door, wherein the lower cabinet door can be separated from the hook to be opened when being lifted; further comprising:

the interlocking assembly is arranged between the operating shaft of the grounding switch and the lower cabinet door in a reciprocating manner, and the upper end of the interlocking assembly is provided with a blocking piece part partially overlapped with the moving path of the operating shaft;

the limiting rod is fixed at the lower end of the interlocking component and is provided with a limiting groove;

the lower cabinet door is arranged on the lower cabinet door, and when the lower cabinet door is closed, the lower cabinet door is inserted into the limiting groove through the limiting plate to form limiting fit with the limiting rod, and the interlocking assembly is pulled to move downwards towards one side away from the operating shaft;

the elastic resetting structure is arranged between the mechanism mounting plate and the interlocking assembly and applies elastic force to the interlocking assembly to move upwards towards one side close to the operating shaft;

the operating shaft has a grounding opening state which rotates to abut against the blocking piece to limit the movement of the interlocking component, so that the lower cabinet door is blocked by the interlocking component and cannot be lifted upwards to be opened; the operating shaft is also provided with a grounding switch-on state which rotates to be separated from the stop piece so as to release the movement limitation of the interlocking component, so that the lower cabinet door pushes the interlocking component to move upwards to be opened when being lifted upwards.

Preferably, the operating shaft comprises half shaft ends and a half groove area which are arranged in half, and the blocking piece is limited and resisted by the half shaft ends when the operating shaft is in a grounding opening state and can movably penetrate into the half groove area when the operating shaft is in a grounding closing state.

As a preferable scheme, the limiting plate is separated from the limiting groove when the lower cabinet door is opened, and is released from limiting fit with the limiting rod, so that the interlocking assembly drives the blocking piece to move upwards and insert into the half groove area under the action of the elastic resetting structure.

As a preferred scheme, the limiting groove is an annular groove formed in the side wall of the limiting rod, and the limiting plate is provided with a U-shaped socket matched with the annular groove.

As a preferable scheme, the elastic reset structure comprises a reset spring sleeved on the interlocking component, a positioning pin which is arranged on the interlocking component in a penetrating manner and is limited at the upper end of the reset spring, and a positioning frame which is fixed on the mechanism mounting plate and is limited at the lower end of the reset spring, wherein the interlocking component is movably arranged on the positioning frame in a penetrating manner.

Preferably, two opposite baffle portions and two guide holes which are oppositely arranged on the two baffle portions and through which the interlocking component can pass are formed at two ends of the positioning frame in a bending mode, and the return spring abuts against the baffle portion at the lower end of the positioning frame.

As a preferred scheme, the interlocking component comprises a pull rod movably arranged between the two baffle parts in a penetrating mode and a transmission plate fixedly connected to the lower portion of the pull rod, a return spring is sleeved on the pull rod, one end of the transmission plate is opposite to the baffle part at the lower end of the positioning frame, and the limiting rod is detachably arranged at the other end of the transmission plate.

As a preferred scheme, a bending part and a mounting hole arranged at the bending part are formed at the other end of the transmission plate, and the limiting rod penetrates into the mounting hole and is fastened on the bending part through a nut structure.

Preferably, the baffle piece is fixedly connected or integrally formed at the upper part of the pull rod, and the baffle piece and the pull rod are connected to form an L-shaped structure.

Preferably, the earthing switch includes an operation panel disposed in parallel to and opposite to the mechanism mounting plate, the operation panel is provided with an operation hole axially opposite to the operation shaft, and the blocking piece is accommodated between the operation panel and the mechanism mounting plate so as to be movable up and down.

The utility model discloses technical scheme has following advantage compared in prior art:

1. the utility model provides an among the interlock of cubical switchboard, lower cabinet door forms spacing cooperation through limiting plate and gag lever post when closing, realize the linkage cooperation between lower cabinet door and the interlocking subassembly promptly, when earthing switch's operation axis is in ground connection separating brake state, the separation blade spare is restricted by the operation axis and can not upwards move, just so restricted whole interlocking subassembly and can not move, lower cabinet door at this moment is held up by the spacing of interlocking subassembly and can not upwards move and mention, also can't break away from and outwards move and open from the couple of cabinet body panel beating, only when earthing switch's operation axis switches over to ground connection state from ground connection separating brake state, namely the operation axis does not stop the separation blade spare again after rotating certain angle, thereby remove the removal restriction to the interlocking subassembly, make whole interlocking subassembly can reciprocate, lower cabinet door at this moment can promote interlocking subassembly upward movement and mention, thereby outside move and open after breaking away from the couple; adopt the cabinet door interlocking structure of this technical scheme design, realize can't opening lower cabinet door when earthing switch is in the separating brake state, can prevent personnel's maloperation like this, the electrified clearance is gone into to the mistake, effectively avoids the electric shock condition to take place to reach the interlocking requirement to lower cabinet door, interlocking cooperation reliability is high, improves the security that the cubical switchboard used.

2. The utility model provides an among the interlock device of cubical switchboard, the cabinet door can drive the limiting plate when opening down and break away from the spacing groove, thereby remove the spacing cooperation between limiting plate and the gag lever post, the interlocking subassembly at this moment no longer receives the action of gravity that lower cabinet door is drop-down, make interlocking subassembly rebound to highest position under reset spring's effect, drive the spacer piece promptly and insert the spacing blocking of operating axis in half groove district, at this moment the operating axis is locked and can not be operated, thereby realize that the cabinet door is opened the state and can not operate earthing switch combined floodgate action under, in order to prevent to earthing switch maloperation, only drive interlocking subassembly and move down after the cabinet door is hung again down, just can expose the operating axis and carry out normal operating to earthing switch.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below.

Fig. 1 is a schematic structural view of an interlocking device of a switch cabinet of the present invention in a grounding and closing state;

fig. 2 is a schematic plan view of the interlocking device of the switchgear cabinet shown in fig. 1;

fig. 3 is a schematic structural diagram of the interlocking device of the switch cabinet of the present invention in the grounding open state;

FIG. 4 is a schematic plan view of the interlock arrangement of the switchgear cabinet of FIG. 2;

fig. 5 is an enlarged schematic structural view of the elastic reset structure of the present invention;

fig. 6 is a schematic view of a connection structure of the limiting rod and the limiting plate of the present invention;

description of reference numerals: 1. an interlock assembly; 11. a pull rod; 12. a drive plate; 13. mounting holes; 2. a limiting rod; 21. a limiting groove; 3. a limiting plate; 4. an elastic reset structure; 41. a return spring; 42. positioning pins; 43. a positioning frame; 44. a baffle portion; 5. a catch piece; 6. an operating shaft; 61. a half shaft end; 62. a half-groove area; 7. a lower cabinet door; 8. a grounding switch; 81. a mechanism mounting plate; 9. and (4) hanging hooks.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "first", "second" and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Furthermore, the technical features mentioned in the different embodiments of the invention described below can be combined with each other as long as they do not conflict with each other.

Example 1

The present embodiment is described in detail below with reference to the accompanying drawings:

the embodiment provides a cabinet door interlocking structure of a switch cabinet as shown in fig. 1-6, which includes a grounding switch 8 arranged on a cabinet body, a lower cabinet door 7 and a hook for locking the lower cabinet door 7, wherein the lower cabinet door 7 can be opened by being separated from the hook when lifted upwards; further comprising:

the interlocking assembly 1 is arranged between an operating shaft 6 of the grounding switch 8 and a lower cabinet door 7 in a reciprocating manner, and the upper end of the interlocking assembly is provided with a baffle piece 5 partially overlapped with the movement path of the operating shaft 6;

the limiting rod 2 is fixed at the lower end of the interlocking component 1 and is provided with a limiting groove 21;

the limiting plate 3 is arranged on the lower cabinet door 7, the lower cabinet door 7 is inserted into the limiting groove 21 through the limiting plate 3 to form limiting fit with the limiting rod 2 when being closed, and the interlocking assembly 1 is pulled to move downwards to one side far away from the operating shaft 6;

an elastic reset structure 4 which is arranged between the mechanism mounting plate 81 and the interlocking component 1 and applies an elastic force to the interlocking component 1 to move upwards towards one side close to the operating shaft 6;

the operating shaft 6 has a grounding opening state which is rotated to abut against the blocking piece 5 to limit the movement of the interlocking component 1, so that the lower cabinet door 7 is blocked by the interlocking component 1 and cannot be lifted upwards to be opened; the operating shaft 6 also has a grounding closing state which is rotated and separated from the blocking piece 5 to release the movement limitation of the interlocking component 1, so that the lower cabinet door 7 pushes the interlocking component 1 to move upwards and open when lifted upwards.

In the above embodiment, the lower cabinet door 7 forms a limiting fit with the limiting rod 2 through the limiting plate 3 when being closed, so as to realize linkage fit between the lower cabinet door 7 and the interlocking component 1, when the operating shaft 6 of the grounding switch is in a grounding opening state, the blocking piece 5 is limited by the operating shaft 6 and cannot move upwards, so that the whole interlocking component 1 is limited from moving upwards, at this time, the lower cabinet door 7 is limited by the interlocking component 1 and blocked, so that the lower cabinet door cannot move upwards and be lifted, and cannot be separated from a hook of a cabinet body metal plate and move outwards and be opened, only when the operating shaft 6 of the grounding switch is switched from the grounding opening state to the grounding closing state, the operating shaft 6 rotates for a certain angle and then does not limit the blocking piece 5, so as to remove the movement limitation on the interlocking component 1, so that the whole interlocking component can move up and down, at this time, the lower cabinet door 7 can push the interlocking component 1 to move upwards and lift, so that the interlocking component 1 moves outwards and opens after being separated from the hook; adopt the cabinet door interlocking structure of this technical scheme design, realize can't opening lower cabinet door when earthing switch is in the separating brake state, can prevent personnel's maloperation like this, the electrified clearance is gone into to the mistake, effectively avoids the electric shock condition to take place to reach the interlocking requirement to lower cabinet door, interlocking cooperation reliability is high, improves the security that the cubical switchboard used.

Referring to fig. 1 to 4, a grounding closing state and a grounding opening state of the operating shaft 6 respectively correspond to a grounding closing position and a grounding opening/closing position of the grounding switch 8, the operating shaft 6 includes half shaft ends 61 and half groove areas 62 arranged in half, the blocking piece 5 is limited and abutted by the half shaft ends 61 when the operating shaft 6 is in the grounding opening state, so as to limit the interlocking component 1 to move upwards, and cannot move upwards according to that the limiting plate 3 fixed on the lower cabinet door is inserted into the limiting groove of the limiting rod 2, so as to lock the lower cabinet door 7 by limiting the movement of the interlocking component 1, so as to prevent the lower cabinet door 7 from being opened when the grounding switch 8 is in the opening state; in addition, the blocking piece 5 can movably penetrate into the half-groove area 62 when the operating shaft 6 is in a grounding and closing state, namely the half-shaft end 61 does not limit the blocking piece after rotating along with the operating shaft 6, and the half-groove area is an upper yielding position of the blocking piece.

Spacing groove 21 for the shaping in ring channel on the gag lever post 2 lateral wall, be provided with on the limiting plate 3 with ring channel complex U-shaped socket, limiting plate 3 is in break away from when lower cabinet door 7 is opened spacing groove 21, and with spacing cooperation is relieved to gag lever post 2, interlocking subassembly 1 at this moment no longer receives the action of gravity that lower cabinet door 7 was drawn down, thereby makes interlocking subassembly 1 is in drive baffle piece 5 moves up under the effect of elasticity reset structure 4 and inserts in half groove district 62, at this moment operating axis 6 is blocked by baffle piece 5 is spacing and can not be operated, thereby realizes can not operating earthing switch combined floodgate action under the cabinet door state of opening down to prevent to earthing switch maloperation, only drive interlocking subassembly and move down after lower cabinet door hangs again, just can expose the operating axis and carry out normal operating to earthing switch.

The following describes the specific arrangement of the elastic reset structure in detail with reference to fig. 3-5:

the elastic reset structure 4 comprises a reset spring 41 sleeved on the interlocking component 1, a positioning pin 42 which is arranged on the interlocking component 1 in a penetrating manner and is limited at the upper end of the reset spring 41, and a positioning frame 43 which is fixed on the mechanism mounting plate 81 and is limited at the lower end of the reset spring 41, wherein the interlocking component 1 is movably arranged on the positioning frame 43 in a penetrating manner, two opposite baffle parts 44 are formed at two ends of the positioning frame 43 in a bending manner, two guide holes which are oppositely arranged on the two baffle parts 44 and can be penetrated by the interlocking component 1, the reset spring 41 is abutted against the baffle part 44 at the lower end of the positioning frame 43, the interlocking component 1 is installed and guided through the two guide holes on the positioning frame 43, and meanwhile, the interlocking component is prevented from position deviation in the up-down moving process, and the installation stability is good. This kind of structure setting can stimulate when lower cabinet door is closed interlocking subassembly 1 moves down, makes reset spring 41 compressed energy storage by the locating pin 42 on the interlocking subassembly, consequently, can drive limiting plate 3 and gag lever post 2 separation in order to relieve spacing cooperation when lower cabinet door is opened, interlocking subassembly and lower cabinet door separation back at this moment can be in automatic the moving up under reset spring 41's the elastic force effect, thereby drive the dog spare shelters from in the half groove area of operating axis, thereby prevent earthing switch carries out any operation under lower cabinet door open mode.

In this embodiment, the specific structure of the interlocking component is described in detail with reference to fig. 1 to 5: interlocking component 1 is including removing pull rod 11 of wearing to establish between two baffle portions 44, and fixed connection be in the drive plate 12 of pull rod 11 lower part, and the cover is equipped with reset spring 41 on the pull rod 11, the one end of drive plate 12 with baffle portion 44 of locating rack 43 lower extreme sets up relatively, can dismantle on its other end and be provided with gag lever post 2, wherein, the other end shaping of drive plate 12 has the portion of bending and sets up the mounting hole 13 of the portion of bending, gag lever post 2 penetrates in the mounting hole 13, through the fastening of nut structure in the portion of bending, just so realize the installation between gag lever post and the drive plate fixed, pull rod 11 can be under reset spring 41's drive along two guiding hole rebound on the locating rack, through the one end butt of drive plate 12 on the baffle portion with injecing the distance that the pull rod rebound.

The blocking piece 5 is fixedly connected or integrally formed on the upper portion of the pull rod 11, and the two are connected to form an L-shaped structure, specifically, the grounding switch 8 comprises an operation panel (not shown in the drawing) which is arranged in parallel and opposite to the mechanism mounting plate 81, an operation hole which is opposite to the operation shaft 6 is formed in the operation panel, the blocking piece 5 can be arranged between the operation panel and the mechanism mounting plate 81 in a vertically moving mode, and the blocking piece 5 can be driven to move downwards according to the structural arrangement that the lower cabinet door 7 is closed, so that the blocking piece 5 is driven to move away from the operation shaft 6, and the blocking piece 5 cannot block the operation hole; and when the lower cabinet door 7 is opened, the interlocking assembly 1 moves upwards under the action of the return spring, so that the blocking piece is driven to be inserted into the half-groove area of the operating shaft, and the operating hole is shielded.

It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications can be made without departing from the scope of the invention.

Claims

1. A cabinet door interlocking structure of a switch cabinet comprises a grounding switch (8) arranged on a cabinet body, a lower cabinet door (7) and a hook (9) used for locking the lower cabinet door, wherein the lower cabinet door (7) can be opened by being separated from the hook when lifted upwards; it is characterized by also comprising:

the interlocking assembly (1) is arranged between an operating shaft (6) of the grounding switch and a lower cabinet door (7) in a reciprocating manner, and the upper end of the interlocking assembly is provided with a baffle piece (5) partially overlapped with a moving path of the operating shaft (6);

the limiting rod (2) is fixed at the lower end of the interlocking component (1) and is provided with a limiting groove (21);

the limiting plate (3) is arranged on the lower cabinet door (7), and when the lower cabinet door (7) is closed, the lower cabinet door is inserted into the limiting groove (21) through the limiting plate (3) to form limiting fit with the limiting rod (2), and the interlocking assembly (1) is pulled to move downwards to one side far away from the operating shaft (6);

the elastic resetting structure (4) is arranged between the mechanism mounting plate (81) and the interlocking component (1) and applies elastic force to the interlocking component (1) to move upwards towards one side close to the operating shaft (6);

the operating shaft (6) has a grounding opening state which is rotatably abutted against the blocking piece (5) to limit the movement of the interlocking component (1), so that the lower cabinet door (7) is blocked by the interlocking component (1) and cannot be lifted upwards and opened; the operating shaft (6) is also provided with a grounding closing state which rotates to be separated from the blocking piece (5) so as to release the movement limitation of the interlocking component (1), so that the lower cabinet door (7) pushes the interlocking component (1) to move upwards to be opened when being lifted upwards.

2. The cabinet door interlocking structure of the switch cabinet according to claim 1, characterized in that: the operating shaft (6) comprises half shaft ends (61) and half groove areas (62) which are arranged in half, and the baffle piece (5) is limited and abutted by the half shaft ends (61) when the operating shaft (6) is in a grounding switching-off state and can movably penetrate into the half groove areas (62) when the operating shaft (6) is in a grounding switching-on state.

3. The cabinet door interlocking structure of the switch cabinet according to claim 2, characterized in that: the limiting plate (3) is separated from the limiting groove (21) when the lower cabinet door (7) is opened, and is released from limiting fit with the limiting rod (2), so that the interlocking assembly (1) drives the blocking piece to move upwards under the action of the elastic resetting structure (4) to be inserted into the half groove area (62).

4. The cabinet door interlocking structure of the switch cabinet according to claim 3, characterized in that: the limiting groove (21) is an annular groove formed in the side wall of the limiting rod (2), and a U-shaped socket matched with the annular groove is arranged on the limiting plate (3).

5. The cabinet door interlocking structure of the switch cabinet according to any one of claims 1 to 4, characterized in that: the elastic reset structure (4) comprises a reset spring (41) sleeved on the interlocking component (1), a positioning pin (42) penetrating through the interlocking component (1) and limited at the upper end of the reset spring (41), and a positioning frame (43) fixed on the mechanism mounting plate (81) and limited at the lower end of the reset spring (41), wherein the interlocking component (1) is movably arranged on the positioning frame (43) in a penetrating mode.

6. The cabinet door interlocking structure of the switch cabinet according to claim 5, characterized in that: two opposite baffle parts (44) are formed at two ends of the positioning frame (43) in a bending mode, two guide holes which are oppositely arranged on the two baffle parts (44) and through which the interlocking component (1) can pass are formed, and the return spring (41) abuts against the baffle parts (44) at the lower end of the positioning frame (43).

7. The cabinet door interlocking structure of the switch cabinet according to claim 6, characterized in that: interlocking subassembly (1) is including removing pull rod (11) of wearing to establish between two baffle portion (44) and fixed connection be in drive plate (12) of pull rod (11) lower part, and the cover is equipped with reset spring (41) on pull rod (11), the one end of drive plate (12) with baffle portion (44) of locating rack (43) lower extreme set up relatively, can dismantle on its other end and be provided with gag lever post (2).

8. The cabinet door interlocking structure of the switch cabinet according to claim 7, characterized in that: the other end molding of driving plate (12) has the portion of bending and sets up mounting hole (13) of the portion of bending, gag lever post (2) penetrate through in mounting hole (13) through nut structure fastening in the portion of bending.

9. The cabinet door interlocking structure of the switch cabinet according to claim 8, characterized in that: the baffle piece (5) is fixedly connected or integrally formed at the upper part of the pull rod (11), and the two are connected to form an L-shaped structure.

10. The cabinet door interlocking structure of the switch cabinet according to any one of claims 6 to 9, wherein: earthing switch (8) including with mechanism mounting panel (81) parallel relative setting's operating panel, operating panel is last be provided with operating shaft (6) to relative operation hole, holding that fender piece (5) can reciprocate is in between operating panel and mechanism mounting panel (81).