CN220100989U - Linkage door lock and switch cabinet - Google Patents

Abstract

The utility model belongs to the technical field of high-voltage electrical equipment, and discloses a linkage door lock and a switch cabinet, wherein the linkage door lock is arranged on the switch cabinet and comprises a first linkage plate, a second linkage plate, a third linkage plate, two linkage assemblies and a plurality of lock catches, the first linkage plate is slidably arranged on the inner side edge of a cabinet door far away from a rotating shaft along a vertical first direction, the second linkage plate and the third linkage plate are slidably arranged on the upper edge and the lower edge of the inner side of the cabinet door along a horizontal second direction respectively, the second linkage plate and the third linkage plate are respectively in transmission connection with the first linkage plate through one linkage assembly, the plurality of lock catches are arranged on a cabinet body, and lock posts are arranged on the first linkage plate, the second linkage plate and the third linkage plate and can move synchronously along the first direction so as to drive the second linkage plate and the third linkage plate to enable the lock posts to be synchronously connected with or separated from the lock catches.

Description

Linkage door lock and switch cabinet

Technical Field

The utility model relates to the technical field of high-voltage electrical equipment, in particular to a linkage door lock and a switch cabinet.

Background

The rapid development of economic and social and technical equipment, the application of high-voltage electrical equipment is more extensive, corresponding higher requirements are put forward to the security of high-voltage electrical equipment, locking of door plant before the handcart room becomes particularly important, current cubical switchboard cabinet door mainly adopts the lock that installs lock core and lock sleeve additional to lock for the opening and the locking of cubical switchboard cabinet door waste time and energy, and the security performance of cubical switchboard is not enough. Therefore, there is a need for a ganged door lock and switch cabinet to solve the above problems.

Disclosure of Invention

One object of the present utility model is to:

on the one hand, the linkage door lock is provided, and the lifting lock can simultaneously realize the opening or locking of the movable three sides of the door by utilizing the transmission structure of the linkage plate and the linkage plate, so that the operation is simple, and the structure is reliable;

on the other hand, provide a cubical switchboard, install the linkage lock additional, block the three sides of cabinet door activity simultaneously, improve the security performance of cubical switchboard.

To achieve the purpose, the utility model adopts the following technical scheme:

the utility model provides a linkage lock installs in cabinet door and cabinet body that rotate to be connected, includes first interlock board, second interlock board, third interlock board, two linkage components and a plurality of hasp, first interlock board includes interlock board and lower interlock board, go up interlock board with down interlock board along vertical first direction slidable mounting in the inboard edge that the pivot was kept away from to the cabinet door, second interlock board with third interlock board respectively along horizontal second direction slidable mounting in the inboard upper edge and the lower edge of cabinet door, the second interlock board passes through one linkage component with go up interlock board transmission connection, the third interlock board pass through one linkage component with lower interlock board transmission connection, a plurality of hasp install in the cabinet body, go up interlock board down interlock board with all be equipped with the lock post on the third interlock board, go up interlock board with down interlock board can follow the activity with the second interlock board with the second is followed to the activity is broken away from to the lock, with the second is connected or is synchronous with the lock in order to make the second side.

Preferably, the linkage assembly comprises a linkage plate and a fixing seat, one end of the fixing seat is fixedly connected with the cabinet door, and the linkage plate is rotatably arranged on the fixing seat along a horizontal axis perpendicular to the second direction; one end of the linkage plate is connected with the upper linkage plate, the upper linkage plate can drive one linkage plate to rotate around the horizontal axis, the other end of the linkage plate is connected with the second linkage plate, and the linkage plate can drive the second linkage plate to slide along the second direction; or alternatively

One end of the linkage plate is connected with the lower linkage plate, the lower linkage plate can drive one linkage plate to rotate around the horizontal axis, the other end of the linkage plate is connected with the third linkage plate, and the linkage plate can drive the third linkage plate to slide along the second direction.

Preferably, the novel lifting lock further comprises a lifting lock, one end of the lifting lock is connected with the upper interlocking plate, the other end of the lifting lock is connected with the lower interlocking plate, and the lifting lock can drive the upper interlocking plate and the lower interlocking plate to slide oppositely or separately along the first direction.

Preferably, the zipper comprises a pulling part and two hooks which are symmetrically arranged and can slide along the first direction in opposite directions or in opposite directions, the pulling part is simultaneously connected with the two hooks in a rotating way and can control the hooks to slide along the first direction, the two hooks are respectively connected with the upper interlocking plate and the lower interlocking plate, and the two hooks drive the upper interlocking plate and the lower interlocking plate to slide along the first direction in opposite directions or in opposite directions when the hooks slide along the first direction in opposite directions or in opposite directions.

Preferably, the door lock further comprises guide plates which are arranged in one-to-one correspondence with the lock columns, the guide plates are fixedly connected with the door lock, and the guide plates are provided with guide holes for the lock columns to slide through.

Preferably, the guide plate comprises two parallel side plates, a locking groove for embedding the lock catch is formed between the two side plates, the two side plates are respectively provided with the guide hole, and the lock column can be slidably arranged on the side plates and the lock catch in a penetrating manner so as to reach or be separated from the position locked and connected with the lock catch.

Preferably, the first interlocking plate, the second interlocking plate and the third interlocking plate are all provided with a yielding gap, and the guide plate is arranged through the yielding gap.

Preferably, a plurality of lock posts and lock catch intervals are arranged along the moving direction of the first locking plate; and/or

A plurality of lock posts and lock catch intervals are arranged along the moving direction of the second interlocking plate; and/or

And a plurality of lock posts and lock catch intervals are arranged along the moving direction of the third interlocking plate.

Preferably, the first interlocking plate, the second interlocking plate and the third interlocking plate are fixedly connected with the lock cylinder through bolt structures.

The utility model provides a cubical switchboard, includes the cabinet body the cabinet door and as the linkage lock, the linkage lock install in the cabinet body with the cabinet door, the linkage lock be used for with the cabinet door lock in the cabinet body or follow unlock on the cabinet body.

The utility model has the beneficial effects that:

on the one hand, the utility model provides a linkage door lock which is used for locking a cabinet body and a cabinet door, a second linkage plate and a third linkage plate are respectively in transmission connection with a first linkage plate through a linkage assembly, a lock catch is arranged on the cabinet body, when the first linkage plate is dragged to move along a first direction, the first linkage plate drives the second linkage plate and the third linkage plate to slide in a second horizontal direction through the linkage assembly, the first linkage plate, the second linkage plate and the third linkage plate are driven to synchronously and lock with the lock catch to be connected or separated, the purpose of simultaneously opening and closing by three-axis linkage is achieved, the operation is simple, the cabinet door can be locked or unlocked only by dragging the first linkage plate, and simultaneously, three sides of the cabinet door are locked with the cabinet body, so that the reliability and stability of cabinet door locking are improved.

On the other hand, provide a cubical switchboard, including the linkage lock, when closing the cabinet door, every side except that the pivot side of cabinet body and cabinet door can both lock, make the protection performance of cubical switchboard internal arc promote to improve the security performance of cubical switchboard, the characteristics of the convenient switching of linkage lock also make the opening or closing operation of cubical switchboard cabinet door become simple, convenient.

Drawings

The utility model is described in further detail below with reference to the drawings and examples;

FIG. 1 is a schematic installation diagram of a linked door lock;

FIG. 2 is an enlarged view of section A;

FIG. 3 is an enlarged view of section B;

fig. 4 is a schematic view of the lock cylinder and the lock catch in a locked state.

In the figure:

1. a first interlock plate; 11. an upper interlocking plate; 12. a lower interlocking plate; 2. a second interlocking plate; 3. a third interlock plate; 4. a pull lock; 5. locking a column; 51. a column; 52. a connection part; 6. a guide plate; 61. a side plate; 62. a locking groove; 63. a relief notch; 71. a linkage plate; 72. a fixing seat; 73. a first shaft pin; 74. a second pin; 75. a blocking card; 8. a cabinet door; 9. locking; 10. a cabinet body.

Detailed Description

In order to make the technical problems solved by the present utility model, the technical solutions adopted and the technical effects achieved more clear, the technical solutions of the embodiments of the present utility model will be described in further detail below with reference to the accompanying drawings, and it is obvious that the described embodiments are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to fall within the scope of the utility model.

In the description of the present utility model, unless explicitly stated and limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

In the description herein, it should be understood that the terms "upper," "lower," "left," "right," and the like are based on the orientation or positional relationship shown in the drawings, and are merely for convenience of description and to simplify the operation, rather than to indicate or imply that the apparatus or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the utility model. Furthermore, the terms "first," "second," and the like, are used merely for distinguishing between descriptions and not for providing a special meaning.

In the description herein, reference to the term "one embodiment," "an example," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples.

The technical scheme of the utility model is further described below by the specific embodiments with reference to the accompanying drawings.

As shown in fig. 1 to 4, the present utility model provides a switch cabinet, which includes a cabinet door 8, a cabinet body 10, and a linkage door lock mounted on the cabinet door 8 and the cabinet body 10 which are rotatably connected, wherein the linkage door lock is used for locking the cabinet door 8 to the cabinet body 10 or unlocking the cabinet body 10, and when the cabinet door 8 is closed, each side of the cabinet body 10 and the cabinet door 8 except for a rotating shaft side can be locked, so that the protection performance of an arc in the switch cabinet is improved, and the safety performance of the switch cabinet is improved.

As shown in fig. 1 to 3, the linkage door lock includes a first linkage plate 1, a second linkage plate 2 and a third linkage plate 3, the first linkage plate 1 is slidably mounted on an inner side edge of a cabinet door 8 far away from a rotating shaft along a vertical first direction, the second linkage plate 2 and the third linkage plate 3 are slidably mounted on an upper edge and a lower edge of an inner side of the cabinet door 8 along a horizontal second direction respectively, and the second direction is a width direction of the cabinet door 8, in order to realize a three-axis linkage function, the second linkage plate 2 and the third linkage plate 3 are respectively in transmission connection with the first linkage plate 1 through a linkage assembly, one end of the linkage assembly is rotationally connected with the first linkage plate 1, the other end of the linkage assembly is rotationally connected with the second linkage plate 2 or the third linkage plate 3, and when the first linkage plate 1 makes a linear reciprocating motion in the first direction, the second linkage plate 2 and the third linkage plate 3 are driven to make a linear reciprocating motion in the second direction.

As shown in fig. 1, the first locking plate 1 is disposed on the inner side of the cabinet door 8, in order to facilitate sliding of the first locking plate 1 in the first direction, the linked door lock further includes a zipper 4 disposed on the first locking plate 1, the first locking plate 1 includes an upper locking plate 11 and a lower locking plate 12, the zipper 4 is disposed between the upper locking plate 11 and the lower locking plate 12, one end of the zipper 4 is connected with the upper locking plate 11, the other end is connected with the lower locking plate 12, the zipper 4 is disposed through the cabinet door 8, an operator can operate the zipper 4 on the outer side of the cabinet door 8, and the zipper 4 can drive the upper locking plate 11 and the lower locking plate 12 to slide in opposite directions or in opposite directions along the first direction.

The lifting lock 4 comprises a lifting part and two hooks which are symmetrically arranged and can slide oppositely or separately along a first direction, the lifting part is penetrated in the cabinet door 8 and is connected with the two hooks in a rotating way, when the lifting lock 4 performs a closing action, the lifting part is pushed inwards, the two hooks slide separately along the first direction, when the lifting lock performs an opening action, the two hooks slide oppositely along the first direction, correspondingly, one ends of the upper interlocking plate 11 and the lower interlocking plate 12, which are close to the lifting lock 4, are provided with positioning notches for embedding the hooks, the two hooks respectively penetrate through the upper interlocking plate 11 and the lower interlocking plate 12, two ends of the lifting lock 4 are respectively connected with the upper interlocking plate 11 and the lower interlocking plate 12, and the hooks drive the upper interlocking plate 11 and the lower interlocking plate 12 to slide oppositely or separately along the first direction when sliding oppositely or separately along the first direction.

As shown in fig. 1 to 3, the upper interlocking plate 11 and the second interlocking plate 2 are in transmission connection through a linkage assembly, one end of the linkage assembly between the upper interlocking plate 11 and the second interlocking plate 2 is in rotational connection with the upper interlocking plate 11, and the other end is in rotational connection with the second interlocking plate 2; the lower interlocking plate 12 and the third interlocking plate 3 are also in transmission connection through a linkage assembly, one end of the linkage assembly between the lower interlocking plate 12 and the third interlocking plate 3 is in rotary connection with the lower interlocking plate 12, and the other end of the linkage assembly is in rotary connection with the third interlocking plate 3.

As shown in fig. 2, the linkage assembly includes a linkage plate 71 and a fixing base 72, the fixing base 72 is fixedly connected with the cabinet door 8 through a welding or bolt structure, the linkage plate 71 is disposed on one side of the fixing base 72 away from the cabinet door 8, the linkage plate 71 is rotatably disposed on the fixing base 72 along a horizontal axis perpendicular to the second direction, when an operator pulls the zipper 4, the upper linkage plate 11 and the lower linkage plate 12 slide in opposite directions, the two linkage plates 71 drive the linkage plate 71 to rotate counterclockwise or clockwise under the action of two opposite forces, and the second linkage plate 2 or the third linkage plate 3 connected with the linkage plate 71 simultaneously slides towards the first linkage plate 1 along the second direction under the drive of the linkage plate 71.

As shown in fig. 2, in order to achieve the purpose of flexible transmission between the first interlocking plate 1 and the second interlocking plate 2 or the third interlocking plate 3, the interlocking plate 71 and the fixing seat 72 are rotationally connected through the first shaft pin 73 penetrating through the interlocking plate 71, the interlocking plate 71 can flexibly rotate around the first shaft pin 73, meanwhile, one end of the interlocking plate 71 connected with the first interlocking plate 1 and one end of the interlocking plate 71 connected with the second interlocking plate 2 or the third interlocking plate 3 are respectively rotationally connected through the second shaft pin 74, friction resistance in the transmission process is reduced, an operator dials the lifting lock 4, and the purpose of simultaneous sliding of the first interlocking plate 1, the second interlocking plate 2 and the third interlocking plate 3 along respective motion directions can be achieved, so that three-axis linkage is easily achieved, and the three-axis sliding type interlocking device is convenient to operate and labor-saving.

However, in order to achieve the purpose of flexible rotation, the first shaft pin 73 and the second shaft pin 74 are in clearance fit with the linkage plate 71, the friction force is small, the linkage plate 71 is easy to fall off in the actual working process, and the linkage assembly is in failure in transmission, therefore, the blocking clamp 75 is further arranged at the outer end parts of the first shaft pin 73 and the second shaft pin 74, as shown in fig. 2, the blocking clamp 75 is arranged at one side of the linkage plate 71, which is far away from the cabinet door 8, the blocking clamp 75 is fixedly connected with the first shaft pin 73, the effect of blocking the linkage plate 71 from sliding outwards and falling off is achieved, meanwhile, one end of the first shaft pin 73, which is close to the cabinet door 8, is fixedly connected with the cabinet door 8 or the fixed seat 72 in a threaded connection or welding mode, and the fixed seat 72 and the blocking clamp 75 are used for limiting the front end and the rear end of the linkage plate 71 at the same time, and the linkage plate 71 can only rotate around the first shaft pin 73. Because the second shaft pin 74 needs to slide along with the first interlocking plate 1, the second interlocking plate 2 or the third interlocking plate 3, the second shaft pin 74 cannot be fixedly connected with the cabinet door 8, and the risk of falling off exists in the working process, both ends of the second shaft pin 74 are provided with blocking clamps 75, the blocking clamps 75 are fixedly connected with the second shaft pin 74, and the blocking clamps 75 at both ends of the second shaft pin 74 limit the second shaft pin 74 at the joint of the interlocking plate 71 and the first interlocking plate 1, the second interlocking plate 2 or the third interlocking plate 3, so that the second shaft pin 74 is prevented from falling off to cause transmission failure. In addition, since the second shaft pin 74 is fixedly connected with the corresponding first, second or third interlocking plate 1, 2 or 3, the actual movement track of the second shaft pin 74 is a straight line, when the interlocking plate 71 rotates clockwise or anticlockwise around the first shaft pin 73, the straight line distance between the first shaft pin 73 and the second shaft pin 74 is changed, in order to avoid the blocking in the transmission process of the interlocking plate 71, the yielding hole of the interlocking plate 71 through which the second shaft pin 74 passes is in a kidney-shaped hole or rectangular hole structure, the central axis of the yielding hole is located on the connecting line of the first shaft pin 73 and the second shaft pin 74, and the second shaft pin 74 can slide on the interlocking plate 71 along the extending direction of the yielding hole. Of course, in other embodiments, the second shaft pin 74 may be fixedly connected to the linkage plate 71, the actual movement track of the second shaft pin 74 is an arc, and connecting holes extending perpendicular to the sliding direction of the first, second and third linkage plates 1, 2 and 3 are provided for the second shaft pin 74 passing therethrough to move.

Illustratively, the catch 75 is detachably coupled to the first pin 73 or the second pin 74 to facilitate assembly and disassembly of the linkage assembly.

As shown in fig. 1 to 4, the first, second and third interlocking plates 1, 2 and 3 are provided with a locking post 5 capable of being in locking connection with the lock catch 9, and the lock catch 9 is mounted on one side of the opening of the cabinet body 10 and is fixedly connected with the cabinet body 10, the lock catch 9 is provided with a locking hole, the locking post 5 comprises a connecting part 52 and a column body 51, the connecting part 52 is fixedly connected with the column body 51 through welding, integral connection or threaded connection and the like, the first, second and third interlocking plates 1, 2 and 3 are fixedly connected with the connecting part 52 through bolt structures, the column body 51 can be inserted into the locking hole in one-to-one correspondence with the movement of the first, second and third interlocking plates 1, 2 and 3, and simultaneously the locking of the first, second and third interlocking plates 2 and 3 with the cabinet body 10 is completed, so that the cabinet body 10 and each side of the cabinet door 8 except the rotating shaft side can be locked. Specifically, when the cylinder 51 passes through the lock hole in the first direction or the second direction to reach the locking position, the lock cylinder 5 is locked by the lock catch 9, and the cabinet door 8 cannot be opened; when the main body leaves the lock hole in the first direction or the second direction to reach the disengaging position, the lock post 5 is disconnected with the lock catch 9, and the cabinet door 8 is opened.

As shown in fig. 1 to 4, in order to make the lock post 5 do not shift along the first direction or the second direction and accurately pass through the lock hole to reach the locking position, the linkage door lock further comprises a guide plate 6 which is arranged in one-to-one correspondence with the lock post 5, the guide plate 6 is fixedly connected with the cabinet door 8 and is provided with a guide hole for the lock post 5 to slide through, the guide plate 6 is illustratively composed of two side plates 61 which are perpendicular to the cabinet door 8 and are arranged in parallel, a locking groove 62 for the lock catch 9 to be embedded is arranged between the two side plates 61, guide holes are formed in the two side plates 61, the cylinder 51 is always penetrated through the closest side plate 61, so that the guide plate 6 can play a guiding role on the lock post 5, when the lock catch 9 is abutted against the bottom of the locking groove 62, the guide holes and the lock hole on the two side plates 61 are positioned on the same straight line, at this moment, the cylinder 51 can sequentially pass through the lock hole and the guide hole far away from the lock post 5 along the first direction or the second direction, the whole cylinder 51 is penetrated through the guide plate 6 and the lock catch 9 to reach the position locked and connected with the lock catch 9.

As shown in fig. 3, since the guide plate 6 needs to be fixedly connected with the cabinet door 8, and the first, second and third interlocking plates 1, 2 and 3 are slidably connected with the cabinet door 8, the first, second and third interlocking plates 1, 2 and 3 are provided with the relief notch 63 for the guide plate 6 to pass through, the size of the relief notch 63 is determined by the distance between the two side plates 61 and the stroke of the lock post 5, specifically, since the lock post 5 is always threaded through the closest side plate 61, when the bottom of the post 51 leaves the locking groove 62, the lock post 5 is separated from the position locked and connected with the lock catch 9, one side of the relief notch 63 contacts with the guide plate 6 to prevent the lock post 5 from continuing to slide to a position completely separated from the guide plate 6, and the guide plate 6 is always threaded through the relief notch 63 to ensure that the first, second and third interlocking plates 1, 2 and 3 can slide smoothly along the first or second directions without being affected by the guide plate 6.

As shown in fig. 1, in order to further improve the reliability and safety performance of the present utility model, a plurality of locking posts 5 and locking catches 9 are arranged at intervals along the moving direction of the first locking plate 1 and the moving direction of the second locking plate 2 and the third locking plate 3, so as to further improve the locking strength of the cabinet door 8 and the cabinet body 10, and improve the protection performance of the internal arc of the switch cabinet, thereby improving the reliability and safety performance of the switch cabinet.

As shown in fig. 1, when the door 8 of the switch cabinet is opened, the lifting lock 4 is pulled, the upper interlocking plate 11 and the lower interlocking plate 12 are driven by the lifting lock 4 to slide along the first direction, and simultaneously the second interlocking plate 2 and the third interlocking plate 3 are respectively driven by the interlocking assembly to slide along the second direction towards one side close to the first interlocking plate 1, the lock column 5 is separated from the position in locking connection with the lock catch 9, the cabinet body 10 and each side of the door 8 except the rotating shaft side are simultaneously unlocked, and at the moment, the door 8 is pulled open, so that the opening action of the door 8 of the switch cabinet can be completed; when the cabinet door 8 of the switch cabinet is locked, the cabinet door 8 is pushed to the cabinet body 10 to be attached, at the moment, the lock catch 9 is embedded into the lock groove 62, the lock catch 9 is abutted to the bottom end of the lock groove 62, the guide hole and the lock hole are positioned on the same straight line, the lifting lock 4 is stirred, under the driving of the lifting lock 4, the upper interlocking plate 11 and the lower interlocking plate 12 slide away from each other along the first direction, meanwhile, the second interlocking plate 2 and the third interlocking plate 3 are respectively driven to slide along the second direction to the side far away from the first interlocking plate 1 through the interlocking assembly, the lock post 5 sequentially penetrates through the lock hole and the guide hole to reach the position locked and connected with the lock catch 9, and the cabinet body 10 and each side of the cabinet door 8 except the rotating shaft side are simultaneously locked, so that the closing action of the cabinet door 8 of the switch cabinet is completed.

Furthermore, the foregoing description of the preferred embodiments and the principles of the utility model is provided herein. It will be understood by those skilled in the art that the present utility model is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the utility model. Therefore, while the utility model has been described in connection with the above embodiments, the utility model is not limited to the embodiments, but may be embodied in many other equivalent forms without departing from the spirit or scope of the utility model, which is set forth in the following claims.

Claims (10)

1. A linked door lock mounted to a rotatably connected cabinet door (8) and cabinet body (10), characterized in that it comprises: the first interlocking plate (1), the second interlocking plate (2), the third interlocking plate (3), two linkage components and a plurality of lock catches (9), the first interlocking plate (1) comprises an upper interlocking plate (11) and a lower interlocking plate (12), the upper interlocking plate (11) and the lower interlocking plate (12) are slidably mounted on the inner side edge of the cabinet door (8) far away from the rotating shaft along a vertical first direction, the second interlocking plate (2) and the third interlocking plate (3) are slidably mounted on the upper edge and the lower edge of the inner side of the cabinet door (8) along a horizontal second direction respectively, the second interlocking plate (2) is in transmission connection with the upper interlocking plate (11) through one linkage component, the third interlocking plate (3) is in transmission connection with the lower interlocking plate (12) through one linkage component, a plurality of lock catches (9) are mounted on the cabinet body (10), the upper interlocking plate (11), the lower interlocking plate (12), the second interlocking plate (2) and the third interlocking plate (3) can be driven along the first direction and the second interlocking plate (3) are in a transmission connection, the lock cylinder (5) is synchronously connected with or disconnected from the lock catch (9).

2. The linkage door lock according to claim 1, wherein the linkage assembly comprises a linkage plate (71) and a fixing base (72), one end of the fixing base (72) is fixedly connected with the cabinet door (8), and the linkage plate (71) is rotatably arranged on the fixing base (72) along a horizontal axis perpendicular to the second direction; one end of the linkage plate (71) is connected with the upper linkage plate (11), the upper linkage plate (11) can drive one linkage plate (71) to rotate around the horizontal axis, the other end of the linkage plate (71) is connected with the second linkage plate (2), and the linkage plate (71) can drive the second linkage plate (2) to slide along the second direction; or alternatively

One end of the linkage plate (71) is connected with the lower linkage plate (12), the lower linkage plate (12) can drive one linkage plate (71) to rotate around the horizontal axis, the other end of the linkage plate (71) is connected with the third linkage plate (3), and the linkage plate (71) can drive the third linkage plate (3) to slide along the second direction.

3. The linked door lock according to claim 1, further comprising a lift lock (4), wherein one end of the lift lock (4) is connected to the upper linking plate (11), the other end of the lift lock (4) is connected to the lower linking plate (12), and the lift lock (4) can drive the upper linking plate (11) and the lower linking plate (12) to slide toward or away from each other along the first direction.

4. A linked door lock according to claim 3, wherein the lifting lock (4) comprises a lifting part penetrating through the cabinet door (8) and two hooks which are symmetrically arranged and can slide towards each other or away from each other along the first direction, the lifting part is simultaneously connected with the two hooks in a rotating way and can control the hooks to slide along the first direction, the two hooks are respectively connected with the upper interlocking plate (11) and the lower interlocking plate (12), and the two hooks drive the upper interlocking plate (11) and the lower interlocking plate (12) to slide towards each other or away from each other along the first direction when sliding towards each other or away from each other along the first direction.

5. The linkage door lock according to claim 1, further comprising guide plates (6) arranged in one-to-one correspondence with the lock cylinders (5), wherein the guide plates (6) are fixedly connected with the cabinet door (8), and the guide plates (6) are provided with guide holes through which the lock cylinders (5) slide.

6. The linkage door lock according to claim 5, wherein the guide plate (6) comprises two parallel side plates (61), a locking groove (62) for the lock catch (9) to be embedded is arranged between the two side plates (61), the guide holes are arranged on the two side plates (61), and the lock cylinder (5) can be slidably arranged between the side plates (61) and the lock catch (9) in a penetrating manner so as to reach or be separated from a position in locking connection with the lock catch (9).

7. The linkage door lock according to claim 5, wherein the first linkage plate (1), the second linkage plate (2) and the third linkage plate (3) are provided with a yielding gap (63), and the guide plate (6) is arranged through the yielding gap (63).

8. The linkage door lock according to claim 1, characterized in that a plurality of lock cylinders (5) and the lock catches (9) are arranged at intervals along the moving direction of the first linkage plate (1); and/or

A plurality of lock posts (5) and lock catches (9) are arranged at intervals along the moving direction of the second interlocking plate (2); and/or

Along the moving direction of the third interlocking plate (3), a plurality of locking columns (5) and locking catches (9) are arranged at intervals.

9. The linked door lock according to claim 1, characterized in that the first (1), the second (2) and the third (3) linked plates are all fixedly connected with the lock cylinder (5) by means of a bolt structure.

10. A switch cabinet, characterized by comprising a cabinet body (10), a cabinet door (8) and a linkage door lock according to any one of claims 1-9, wherein the linkage door lock is mounted on the cabinet body (10) and the cabinet door (8), and the linkage door lock is used for locking the cabinet door (8) on the cabinet body (10) or unlocking the cabinet body (10).