CN115332959A

CN115332959A - In-cabinet interlocking device for parallel cabinet system

Info

Publication number: CN115332959A
Application number: CN202211110621.6A
Authority: CN
Inventors: 冯华
Original assignee: Foshan Yicong Electrical Equipment Co ltd
Current assignee: Foshan Yicong Electrical Equipment Co ltd
Priority date: 2022-09-13
Filing date: 2022-09-13
Publication date: 2022-11-11

Abstract

The invention discloses an in-cabinet interlocking device for a parallel cabinet system, wherein the parallel cabinet system comprises a plurality of cabinet bodies which are arranged side by side in a straight line shape, each cabinet body comprises a frame, a side plate arranged on the frame and a cabinet door hinged with one upright post, the frames of two adjacent cabinet bodies are fixedly connected, the opening directions of the cabinet doors of the two adjacent cabinet bodies are the same, the in-cabinet interlocking device comprises a main lock, a pushing mechanism and a lock hook, the main lock is movably arranged on the two adjacent upright posts of the two adjacent cabinet bodies, the pushing mechanism is arranged on the inner side of the cabinet door of one cabinet body and is adjacent to an articulated piece of the cabinet door, and the lock hook is arranged on the inner side of the cabinet door of the other cabinet body and is adjacent to one end of the cabinet door, far away from the articulated piece of the cabinet door. Compared with the traditional push rod type interlocking mechanism, the length of the interlocking device in the cabinet is greatly reduced, the number of parts is small, the installation is convenient and rapid, the problem of power failure locking of two cabinet doors can be solved only by installing the circuit breaker on the first cabinet door, and the production cost and the installation steps of a parallel cabinet system are saved.

Description

In-cabinet interlocking device for parallel cabinet system

Technical Field

The invention relates to the technical field of switch cabinets, in particular to an in-cabinet interlocking device for a parallel cabinet system.

Background

The switch cabinet is an electrical device, the external line of the switch cabinet firstly enters a main control switch in the cabinet and then enters a branch control switch, and each branch is arranged according to the requirement. Such as instruments, automatic control, magnetic switches of motors, various alternating current contactors and the like, high-voltage chambers and low-voltage chamber switch cabinets, high-voltage buses, such as power plants and the like, and low-cycle load shedding for keeping main equipment.

The main function of the switch cabinet is to open and close, control and protect electric equipment in the process of power generation, power transmission, power distribution and electric energy conversion of an electric power system. The components in the switch cabinet mainly comprise a circuit breaker, an isolating switch, a load switch, an operating mechanism, a mutual inductor, various protection devices and the like. The classification methods of the switch cabinets are various, for example, the switch cabinets can be divided into movable switch cabinets and fixed switch cabinets by the installation mode of the circuit breaker; or according to different cabinet body structures, the cabinet body can be divided into an open type switch cabinet, a metal closed switch cabinet and a metal closed armored switch cabinet; the high-voltage switch cabinet, the medium-voltage switch cabinet, the low-voltage switch cabinet and the like can be divided according to different voltage grades. The method is mainly suitable for various occasions such as power plants, transformer substations, petrochemical industry, metallurgical steel rolling, light industrial textile, industrial and mining enterprises, residential districts, high-rise buildings and the like.

The existing switch cabinet is provided with a single cabinet and a parallel cabinet consisting of a plurality of cabinet bodies, and for the parallel cabinet, in order to reduce potential safety hazards, an interlocking mechanism is usually arranged in the cabinet body and the problem of locking when the switch cabinet is controlled to be powered on or powered off by combining a circuit breaker is solved.

At present, a push rod type in-cabinet interlocking mechanism appears on the market, the interlocking mechanism is fixed at the top position in a cabinet body, when a push rod moves, a driving hook falls down to lock a door, and a spring enables the push rod to reset to unlock the door when the door is opened. The interlocking structure has more parts and longer length of the push rod, the push mechanism can correctly push the push rod to a proper position only by finely adjusting the mounting position of the fixed iron block on the push rod during mounting, and the mounting process is more complicated.

Disclosure of Invention

The invention aims to provide an in-cabinet interlocking device for a parallel cabinet system, which is short in length, small in part number and convenient and quick to install, and the problem of locking two cabinet bodies can be solved by only installing a circuit breaker on one cabinet door when the in-cabinet interlocking device is adopted.

In order to achieve the purpose, the invention adopts the following technical scheme:

the in-cabinet interlocking device comprises a main lock, a pushing mechanism and a lock hook, wherein the main lock is movably arranged on the two adjacent columns of the first cabinet body and the second cabinet body, the pushing mechanism is arranged on the inner side of the first cabinet door of the first cabinet body and is adjacent to the hinged piece of the first cabinet door, and the lock hook is arranged on the inner side of the second cabinet door of the second cabinet body and is adjacent to one end, far away from the hinged piece, of the second cabinet door;

when the first cabinet door and the second cabinet door are both in a closed state, the pushing mechanism is abutted against the main lock, the lock hook and the main lock are in a locked state, the pushing mechanism can be separated from the main lock by opening the first cabinet door, the main lock moves towards the first cabinet body to separate the lock hook from the main lock, and at the moment, the second cabinet door can be opened, so that the first cabinet door and the second cabinet door are both in an opened state;

when the first cabinet door and the second cabinet door are both in an opening state, the second cabinet door is closed, the lock hook is enabled to be over against the main lock, the first cabinet door is closed at the moment, the lock hook drives the main lock to move towards the lock hook to be in a locking state with the lock hook, and when the second cabinet door is opened before the first cabinet door, the lock hook is clamped with the main lock to prevent the second cabinet door from being opened before the first cabinet door.

As a preferred solution for an in-cabinet interlock for a parallel cabinet system, the main lock comprises:

the first connecting plate is provided with two long adjusting holes at intervals along the length direction, the length direction of each long adjusting hole extends along the length direction of the first connecting plate, and the first connecting plate is arranged on the upright post through a screw penetrating through the long adjusting holes;

the first folding plate is positioned on one side, close to the upright post, of the first connecting plate and is fixedly connected with one end, close to the pushing mechanism, of the first connecting plate, an elastic piece is arranged on one side, close to the upright post, of the first folding plate, and the elastic piece enables the main lock to have a trend of moving towards the pushing mechanism;

the second folded plate, the third folded plate and the fourth folded plate are sequentially connected and are positioned on one side, close to the upright post, of the first connecting plate, the second folded plate and one end, far away from the first folded plate, of the first connecting plate are fixedly connected, the second folded plate and the fourth folded plate are positioned on the same side of the third folded plate, the fourth folded plate is positioned on one side, far away from the first folded plate, of the second folded plate, and the second folded plate, the third folded plate and the fourth folded plate form a circuitous part;

when the second cabinet door is closed, the lock hook moves to the position above the fourth folded plate and is positioned on the outer side of the fourth folded plate, the first cabinet door is closed, and the pushing mechanism is abutted to the first folded plate to compress the elastic piece and drive the circuitous part to be locked with the lock hook; when the first cabinet door is opened, the elastic piece drives the main lock to slide towards the direction far away from the lock hook, so that the lock hook is positioned on the outer side of the fourth folding plate.

As an optimal scheme of the in-cabinet interlocking device for the parallel cabinet system, the elastic piece comprises a guide rod and a spring, the guide rod is fixed on one side of the upright post, the first folding plate is close to the guide rod, the spring is sleeved on the guide rod, one end of the first folding plate, far away from the guide rod, extends into the upright post, one end of the spring is abutted against the first folding plate, and the other end of the spring is abutted against the upright post.

As an optimal scheme of the in-cabinet interlocking device for the parallel cabinet system, the in-cabinet interlocking device further comprises a gasket, the gasket comprises a bottom plate and a side plate which are connected vertically, a plurality of first connecting holes and two second connecting holes are arranged on the bottom plate at intervals, a screw penetrates through the first connecting holes and holes in the stand to enable the bottom plate to be fixed on the stand, the screw penetrates through the adjusting long holes and the second connecting holes to enable the first connecting plates and the bottom plate to be movably connected, the side plate is located on one side of the stand close to the first folded plate, a avoiding hole is formed in the side plate, the guide rod penetrates through the avoiding hole to extend into the stand, and one end of the spring is abutted against the side plate.

As a preferable mode of the in-cabinet interlock device for the parallel cabinet system, the main lock further includes a guide portion fixedly connected to an end of the first flap remote from the first connecting plate, the guide portion being inclined toward the pillar.

As an optimal scheme of the in-cabinet interlocking device for the parallel cabinet system, the pushing mechanism comprises a second connecting plate and a first bending piece, a third connecting hole is formed in the second connecting plate, a screw penetrates through the third connecting hole and is connected with the inner side of the first cabinet door, one end of the second connecting plate is adjacent to the side edge of the first cabinet door, the other end of the second connecting plate is fixedly connected with the first bending piece, the first bending piece is bent towards the main lock, and the first bending piece can be abutted against the first bending plate.

As an optimal scheme of the in-cabinet interlocking device for the parallel cabinet system, the first bending piece comprises a first bending part, a second bending part and a third bending part, one end of the first bending part is vertically connected with the second connecting plate, the other end of the first bending part extends towards the direction away from the first cabinet door and is connected with the second bending part, one end of the second bending part away from the first bending part extends towards the first bending plate in an inclined manner and is connected with the third bending part, and the third bending part is parallel to the guide part.

As a preferable scheme of the in-cabinet interlocking device for the parallel cabinet system, the latch hook includes a third connecting plate and a second bending piece, the third connecting plate is provided with a fourth connecting hole, a screw passes through the fourth connecting hole to be connected with the inner side of the second cabinet door, one end of the third connecting plate is adjacent to the side edge of the second cabinet door, the other end of the third connecting plate is fixedly connected with the second bending piece, and the second bending piece can be clamped with the roundabout part.

As a preferred scheme of the in-cabinet interlocking device for the parallel cabinet system, the second bending member includes a fourth bending portion, a fifth bending portion and a sixth bending portion, one end of the fourth bending portion is vertically connected to the third connecting plate, the other end of the fourth bending portion extends toward the direction away from the second cabinet door and is connected to the fifth bending portion, one end of the fifth bending portion away from the fourth bending portion is vertically connected to the sixth bending portion, the fifth bending portion and the sixth bending portion are both located on the side where the fourth bending portion is close to the stand column, the fourth bending portion and the sixth bending portion are located on the same side of the fifth bending portion, when the first cabinet door and the second cabinet door are both closed, the fourth folding portion and the sixth bending portion are vertically staggered, and when the second cabinet door is opened before the first cabinet door, the fourth folding portion and the sixth bending portion are clamped and locked to prevent the second cabinet door from being opened before the first cabinet door.

As an optimal scheme of the in-cabinet interlocking device for the parallel cabinet system, the frame is of a 9-fold section structure, the frame is provided with a plurality of main locks for installation, the hole structures of the gaskets are arranged, the first cabinet door and the second cabinet door are provided with reinforcing ribs all around, the reinforcing ribs are arranged on the periphery of the first cabinet door and are located on the inner side of the first cabinet door, the reinforcing ribs are arranged on the periphery of the second cabinet door and are located on the inner side of the second cabinet door, the first reinforcing ribs are provided with a plurality of hole structures for installation of the pushing mechanism, and the second reinforcing ribs are provided with a plurality of hole structures for installation of the locking hooks.

The invention has the beneficial effects that:

the invention utilizes the installation convenience of the 9-fold section bar to install the in-cabinet interlocking device on two adjacent longitudinal upright posts of the parallel cabinet system, thereby greatly reducing the length of the in-cabinet interlocking device.

Structurally, the push rod mechanism in the prior art is simplified into a push type main lock, and the spring is used as a reset device, so that the problem of locking two cabinet doors is solved under the synergistic action of the push mechanism and the lock hook.

In the prior art, each cabinet door of the traditional switch cabinet needs to be provided with a breaker to realize the technical effect that the cabinet door can be opened only when the power failure of the corresponding cabinet door is realized.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the embodiments of the present invention will be briefly described below. It is obvious that the drawings described below are only some embodiments of the invention, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.

Fig. 1 is a schematic view of the installation of the in-cabinet interlock device of the present invention.

Fig. 2 is a side view P in fig. 1.

Fig. 3 is a partially enlarged view of a portion a in fig. 1.

Fig. 4 is a partially enlarged view of a portion B in fig. 2.

FIG. 5 is a side view of the primary lock.

Fig. 6 is a side view of the primary lock from another perspective.

Fig. 7 is a side view of the primary lock from yet another perspective.

Fig. 8 is a side view of the pushing mechanism.

Fig. 9 is a side view from another perspective of the pushing mechanism.

Fig. 10 is a side view of a shackle.

Fig. 11 is a side view of the shackle from another perspective.

Fig. 12 is a side view of the shackle from yet another perspective.

Fig. 13 is a side view of a gasket.

Fig. 14 is a side view of the gasket from another perspective.

Fig. 15 is a side view of the gasket from yet another perspective.

In the figure:

1. a master lock; 11. a first connecting plate; 12. adjusting the long hole; 13. a first folded plate; 14. an elastic member; 141. a guide bar; 142. a spring; 15. a second folded plate; 16. a third folded plate; 17. a fourth folded plate; 18. a guide portion; 2. a pushing mechanism; 21. a second connecting plate; 22. a third connection hole; 23. a first bent portion; 24. a second bent portion; 25. a third bent portion; 3. a latch hook; 31. a third connecting plate; 32. a fourth connection hole; 33. a fourth bent portion; 34. a fifth bent portion; 35. a sixth bent portion; 4. a gasket; 41. a base plate; 42. a first connection hole; 43. a second connection hole; 44. a side plate; 45. avoiding holes;

100. a first cabinet; 110. a first cabinet door; 120. a first reinforcing rib; 200. a second cabinet; 210. a second cabinet door; 220. a second reinforcing rib; 300. and (4) a column.

Detailed Description

The technical scheme of the invention is further explained by the specific implementation mode in combination with the attached drawings.

Wherein the showings are for the purpose of illustration only and are shown by way of illustration only and not in actual form, and are not to be construed as limiting the present patent; for a better explanation of the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.

The same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar components; in the description of the present invention, it should be understood that if the terms "upper", "lower", "left", "right", "inner", "outer", etc. are used for indicating the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, it is only for convenience of description and simplification of description, but it is not indicated or implied that the referred device or element must have a specific orientation, be constructed in a specific orientation and be operated, and therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and are not to be construed as limitations of the present patent, and the specific meanings of the terms may be understood by those skilled in the art according to specific situations.

In the description of the present invention, unless otherwise explicitly specified or limited, the term "connected" or the like, if appearing to indicate a connection relationship between the components, is to be understood broadly, for example, as being fixed or detachable or integral; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or may be connected through one or more other components or may be in an interactive relationship with one another. The specific meanings of the above terms in the present invention can be understood in a specific case to those of ordinary skill in the art.

Example one

As shown in fig. 1 to 4, this embodiment provides an in-cabinet interlocking device for a parallel cabinet system, where the parallel cabinet system includes a plurality of cabinet bodies in a straight shape side by side, each cabinet body includes a frame surrounded by a plurality of beams and a plurality of columns, a side plate installed on the frame, and a cabinet door hinged to one of the columns through a hinge, the frames of two adjacent cabinet bodies are fixedly connected, and the opening directions of the cabinet doors of the two adjacent cabinet bodies are the same.

In this embodiment, the intra-cabinet interlocking device includes a main lock 1, a pushing mechanism 2 and a latch hook 3, two adjacent cabinets are a first cabinet 100 and a second cabinet 200 respectively, the main lock 1 is movably mounted on two adjacent columns 300 of the first cabinet 100 and the second cabinet 200, the pushing mechanism 3 is mounted on the inner side of the first cabinet door 110 of the first cabinet 100 and is adjacent to the hinge element of the first cabinet door 110, and the latch hook 3 is mounted on the inner side of the second cabinet door 210 of the second cabinet 200 and is adjacent to one end of the second cabinet door 210 away from the hinge element;

when the first cabinet door 110 and the second cabinet door 210 are both in a closed state, the pushing mechanism 2 is abutted to the main lock 1, the latch hook 3 and the main lock are in a locked state, the pushing mechanism 2 can be separated from the main lock 1 by opening the first cabinet door 110, the main lock 1 moves towards the first cabinet body 100 to separate the latch hook 3 from the main lock 1, and at the moment, the second cabinet door 210 can be opened, so that the first cabinet door 110 and the second cabinet door 210 are both in an opened state;

when first cabinet door 110 and second cabinet door 210 are all in the open mode, close second cabinet door 210, make latch hook 3 just to main lock 1, close first cabinet door 110 this moment, make latch hook 3 drive main lock 1 move to be in the locking state with latch hook 3 towards latch hook 3, when second cabinet door 210 is opened earlier than first cabinet door 110, latch hook 3 and main lock 1 joint are in order to prevent that second cabinet door 210 is opened earlier than first cabinet door 110.

This embodiment installs interlock in the cabinet on two adjacent stands 300 of parallel connection cabinet system, and the length of interlock in the cabinet that has significantly reduced, and the interlock part quantity is less in the cabinet of this embodiment, and simple to operate is swift.

In this embodiment, still install the circuit breaker on first cabinet door 110, this circuit breaker is including installing operating handle and a link structure in the first cabinet door 110 outside, operating handle passes through this link structure and is connected with the interior interlock of cabinet, this circuit breaker is the equipment commonly used on the cubical switchboard, technical personnel in the art can obtain the mounting structure of circuit breaker on first cabinet door 110 very easily according to the theory of operation of circuit breaker and the mounting structure of current circuit breaker, therefore, this application is specifically no longer described any more to the mounting structure and the theory of operation of circuit breaker on first cabinet door 110. When the main switch of the parallel cabinet system is in a circuit connection state, the first cabinet door 110 cannot be opened; only when the main switch of the parallel cabinet system is in a circuit disconnection state, the first cabinet door 110 can be opened, so that the safety of personnel during the operation of the parallel cabinet system is ensured. And when the first cabinet door 110 is opened, the second cabinet door 210 can be opened; conversely, first cabinet door 110 may be closed only after second cabinet door 210 is closed.

Further, as shown in fig. 5 to 7, the primary lock 1 in the present embodiment includes:

the first connecting plate 11, the first connecting plate 11 has two long adjusting holes 12 spaced apart along its length direction, the length direction of the long adjusting holes 12 extends along the length direction of the first connecting plate 11, the first connecting plate 11 is mounted on the upright 300 by screws passing through the long adjusting holes 12;

a first folding plate 13, which is located on one side of the first connecting plate 13 close to the upright 300 and is fixedly connected with one end of the first connecting plate 11 close to the pushing mechanism 2, wherein one side of the first folding plate 13 close to the upright 300 is provided with an elastic piece 14, and the elastic piece 14 enables the main lock 1 to have a tendency of moving towards the pushing mechanism 2;

the second folding plate 15, the third folding plate 16 and the fourth folding plate 17 which are connected in sequence are positioned on one side, close to the upright post 300, of the first connecting plate 11, the second folding plate 15 is fixedly connected with one end, far away from the first folding plate 13, of the first connecting plate 11, the second folding plate 15 and the fourth folding plate 17 are positioned on the same side of the third folding plate 16, the fourth folding plate 17 is positioned on one side, far away from the first folding plate 13, of the second folding plate 15, and the second folding plate 15, the third folding plate 16 and the fourth folding plate 17 form a circuitous part;

when the second cabinet door 210 is closed, the latch hook 3 moves to the upper side of the fourth folding plate 17 and is located on the outer side of the fourth folding plate 17, at this time, the first cabinet door 110 is closed, the pushing mechanism 2 abuts against the first folding plate 13 to compress the elastic member 14 and drive the circuitous part to be locked with the latch hook 3, the latch hook 3 is partially located on the inner side of the fourth folding plate 17, and at this time, if the second cabinet door 210 is opened again, the fourth folding plate 17 is connected with the latch hook 3 in a clamping manner, so that the second cabinet door 210 cannot be opened; when the first cabinet door 110 is opened, the elastic element 14 drives the main lock 1 to slide in a direction away from the locking hook 3, so that the locking hook 3 is located at an outer side of the fourth folding plate 17, wherein the outer side of the fourth folding plate 17 refers to a side of the fourth folding plate 17 away from the first folding plate 13, and correspondingly, an inner side of the fourth folding plate 17 refers to a side of the fourth folding plate 17 close to the first folding plate 13.

Furthermore, the elastic member 14 includes a guide rod 141 fixed on one side of the first folding plate 13 close to the upright 300 and a spring 142 sleeved on the guide rod 141, one end of the guide rod 141 far away from the first folding plate 13 extends into the upright 300, one end of the spring 142 abuts against the first folding plate 13, and the other end abuts against the upright 300. The guide rod 141 is arranged to prevent the spring 142 from generating axial deformation during the compression process to influence the operation stability of the interlock device in the cabinet. The spring 142 is engaged with the long adjustment hole 12 of the first link plate 11, thereby allowing the main lock to slide in the length direction of the long adjustment hole 12 by the urging mechanism 2.

Further, the main lock 1 further comprises a guiding portion 18 fixedly connected to an end of the first folding plate 13 far from the first connecting plate 11, and the guiding portion 18 is inclined towards the upright 300. The guide portion 18 disposed obliquely can prevent the pushing mechanism 2 from being stuck when abutting against the main lock 1, so that the main lock 1 can slide more smoothly toward the locking hook 3.

In this embodiment, the main lock is an integral bending structure except the elastic member 14, and the structural stability is high.

As shown in fig. 8-9, the pushing mechanism 2 includes a second connecting plate 21 and a first bending member, the second connecting plate 21 has a third connecting hole 22, a screw passes through the third connecting hole 22 to connect with the inner side of the first cabinet door 110, one end of the second connecting plate 21 is adjacent to the side of the first cabinet door 110, the other end is fixedly connected with the first bending member, and the first bending member can abut against the first bending plate 13. The first bending piece portion is bent toward the main lock 1 so as to abut the first flap 13 and the guide portion 18.

In this embodiment, the number of the third connecting holes 22 is two, and the two third connecting holes 22 are long holes, and the length of the long holes extends along the width direction of the second connecting plate 21, so that the position adjustment is facilitated.

Further, the first bending part includes a first bending part 23, a second bending part 24 and a third bending part 25, one end of the first bending part 23 is vertically connected to the second connecting plate 21, the other end of the first bending part extends toward the direction away from the first cabinet door 110 and is connected to the second bending part 24, one end of the second bending part 24 away from the first bending part 23 extends toward the first bending part 13 in an inclined manner and is connected to the third bending part 25, and the third bending part 25 is parallel to the guiding part 18. When the first cabinet door 110 is closed, the third bending portion 25 first contacts with the guiding portion 18 and slides along the guiding portion 18, then the corners of the third bending portion 25 and the second bending portion 24 abut against the first folding plate 13, the main lock 1 continues to be pushed to slide towards the direction of the locking hook 3, and when the main lock 1 slides in place, the second bending portion 24 abuts against the corners of the first folding plate 13 and the first connecting plate 11.

In this embodiment, as shown in fig. 10 to 12, the latch hook 3 includes a third connecting plate 31 and a second bending member, the third connecting plate 31 is provided with a fourth connecting hole 32, a screw passes through the fourth connecting hole 32 to be connected with the inner side of the second cabinet door 210, one end of the third connecting plate 31 is adjacent to the side edge of the second cabinet door 210, and the other end is fixedly connected with the second bending member, and the second bending member can be clamped with the detour portion, that is, when the first cabinet door 110 and the second cabinet door 210 are both in a closed state, the second bending member is clamped and locked with the detour portion, at this time, the second cabinet door 210 cannot be opened before the first cabinet door 110 is opened, and only after the first cabinet door 110 is opened, the second bending member and the detour portion can be released to open the second cabinet door 210; when the door is closed, the second door 210 must be closed first to make the second bending member and the detour portion be in a to-be-locked state, that is, the second bending member is located outside the fourth folding plate 17, and when the first door 110 is closed, the main lock 1 slides towards the second bending member to make the second bending member located inside the fourth folding plate 17.

Further, the second bending part includes a fourth bending part 33, a fifth bending part 34 and a sixth bending part 35, one end of the fourth bending part 33 is vertically connected to the third connecting plate 31, the other end extends towards the direction away from the second cabinet door 210 and is connected to the fifth bending part 34, one end of the fifth bending part 34 away from the fourth bending part 33 is vertically connected to the sixth bending part 35, the fifth bending part 34 and the sixth bending part 35 are located on the side where the fourth bending part 33 is close to the vertical column 300, and the fourth bending part 33 and the sixth bending part 35 are located on the same side of the fifth bending part 34, when the first cabinet door 110 and the second cabinet door 210 are closed, the fourth bending part 17 and the sixth bending part 35 are staggered, when the second cabinet door 210 is opened before the first cabinet door 110, the fourth bending part 17 and the sixth bending part 35 are locked to prevent the second cabinet door 210 from being opened before the first cabinet door 110.

In this embodiment, the frame is a 9-fold section structure, a plurality of hole structures for installing the main lock 1 are reserved along the vertical column 300 and the length direction of the cross beam respectively, reinforcing ribs are arranged around the first cabinet door 110 and the second cabinet door 210, the reinforcing ribs include a first reinforcing rib 120 arranged around the first cabinet door 110 and located inside the first cabinet door 110 and a second reinforcing rib 220 arranged around the second cabinet door 210 and located inside the second cabinet door 210, a plurality of hole structures for installing the pushing mechanism 2 are provided on the first reinforcing rib 120, and a plurality of hole structures for installing the lock hook 3 are provided on the second reinforcing rib 220.

This embodiment utilizes the installation convenience of 9 sections, installs interlock in the cabinet on two adjacent fore-and-aft stands 300 of parallel connection cabinet system, the length of the interlock in the cabinet that has significantly reduced.

Structurally, this embodiment simplifies the push rod mechanism among the prior art into a main lock of promotion formula to use the spring as resetting means, realize the locking problem of two cabinet doors under the synergism of pushing mechanism and latch hook.

In the prior art, each cabinet door of the traditional switch cabinet needs to be provided with a breaker to realize the technical effect that the cabinet door can be opened only when the power failure of the corresponding cabinet door is realized, the problem of power failure locking of the first cabinet door 110 and the second cabinet door 210 can be realized only by arranging the corresponding breaker on the first cabinet door 110, and the production cost and the installation steps of a parallel cabinet system are saved.

In this embodiment, the cabinet door strengthening rib follows standardized design, reserves porose structure promptly and installs the hole site, therefore, even in the customization cabinet body, the distance of cabinet door strengthening rib and stand is also fixed, consequently can install latch hook 3 on driven door (second cabinet door) very conveniently to and adorn pushing mechanism 2 on driving door (first cabinet door).

Example two

The in-cabinet interlock device for the parallel cabinet system in this embodiment is substantially the same as the first embodiment except that a gasket 4 is added to the first embodiment.

Specifically, as shown in fig. 13 to 15, the gasket 4 includes a bottom plate 41 and a side plate 44 that are vertically connected, a plurality of first connection holes 42 and two second connection holes 43 are spaced apart from each other on the bottom plate 41, a screw passes through the first connection holes 42 and the hole structures on the upright 300 and is screwed with the upright 300, so that the bottom plate 41 is fixed on the upright 300, the screw passes through the adjustment long hole 12 and the second connection hole 43 and is connected with the bottom plate 41, so that the first connection plate 11 is slidably connected with the bottom plate 41, the side plate 44 is located on one side of the upright 300 close to the first folding plate 13, an avoidance hole 45 is opened on the side plate 44, the guide rod 141 passes through the avoidance hole 45 and extends into the upright 300, and one end of the spring 142 abuts against the side plate 44.

The number of the first connection holes 42 is four, and the first connection holes are all oval holes, and are respectively adjacent to four corners of the bottom plate 41, and the two second connection holes 43 are circular threaded holes.

The present embodiment can improve the mounting stability and convenience of the main lock 1 by the provision of the spacer 4.

It is to be understood that the above-described embodiments are merely preferred embodiments of the invention and that the technical principles herein may be applied. It will be understood by those skilled in the art that various modifications, equivalents, changes, and the like can be made to the present invention. However, such variations are within the scope of the invention as long as they do not depart from the spirit of the invention. In addition, certain terms used in the specification and claims of the present application are not limiting, but are used merely for convenience of description.

Claims

1. An in-cabinet interlocking device for a parallel cabinet system, wherein the parallel cabinet system comprises a plurality of cabinet bodies which are arranged side by side in a straight line shape, each cabinet body comprises a frame which is formed by enclosing a plurality of cross beams and a plurality of vertical columns, a side plate which is arranged on the frame and a cabinet door which is hinged with one of the vertical columns through an articulated piece, the frames of two adjacent cabinet bodies are fixedly connected, and the opening directions of the cabinet doors of the two adjacent cabinet bodies are the same;

2. The in-cabinet interlock for a parallel cabinet system according to claim 1, wherein the primary lock comprises:

the first connecting plate is provided with two long adjusting holes at intervals along the length direction, the length direction of each long adjusting hole extends along the length direction of the first connecting plate, and the first connecting plate is installed on the upright post through a screw penetrating through the long adjusting holes;

the second folded plate, the third folded plate and the fourth folded plate are connected in sequence and are positioned on one side, close to the upright post, of the first connecting plate, the second folded plate is fixedly connected with one end, far away from the first folded plate, of the first connecting plate, the second folded plate and the fourth folded plate are positioned on the same side of the third folded plate, the fourth folded plate is positioned on one side, far away from the first folded plate, of the second folded plate, and the second folded plate, the third folded plate and the fourth folded plate form a circuitous part;

when the second cabinet door is closed, the lock hook moves to the position above the fourth folded plate and is positioned on the outer side of the fourth folded plate, the first cabinet door is closed, and the pushing mechanism is abutted to the first folded plate to compress the elastic piece and drive the circuitous part to be locked with the lock hook; when the first cabinet door is opened, the elastic piece drives the main lock to slide towards the direction away from the lock hook, so that the lock hook is positioned on the outer side of the fourth folding plate.

3. The in-cabinet interlock device for a parallel cabinet system according to claim 2, wherein the elastic member comprises a guide rod fixed on one side of the first folding plate close to the upright post and a spring sleeved on the guide rod, one end of the guide rod far away from the first folding plate extends into the upright post, one end of the spring abuts against the first folding plate, and the other end of the spring abuts against the upright post.

4. The in-cabinet interlocking device for the parallel cabinet system according to claim 3, further comprising a gasket, wherein the gasket comprises a bottom plate and a side plate which are vertically connected, a plurality of first connecting holes and two second connecting holes are arranged on the bottom plate at intervals, a screw penetrates through the first connecting holes and the holes on the upright column to fix the bottom plate on the upright column, the screw penetrates through the adjusting long holes and the second connecting holes to movably connect the first connecting plates with the bottom plate, the side plate is arranged on one side of the upright column close to the first folded plate, an avoiding hole is arranged on the side plate, the guide rod penetrates through the avoiding hole to extend into the upright column, and one end of the spring is abutted against the side plate.

5. The in-cabinet interlock for a parallel cabinet system according to claim 2, wherein the primary lock further comprises a guide fixedly connected to an end of the first flap remote from the first connecting plate, the guide being inclined toward the upright.

6. The in-cabinet interlock device for a parallel cabinet system according to claim 5, wherein the pushing mechanism comprises a second connecting plate and a first bending member, the second connecting plate is provided with a third connecting hole, a screw passes through the third connecting hole to be connected with the inner side of the first cabinet door, one end of the second connecting plate is adjacent to the side edge of the first cabinet door, the other end of the second connecting plate is fixedly connected with the first bending member, the first bending member is partially bent towards the main lock, and the first bending member can abut against the first bending plate.

7. The in-cabinet interlock device for a parallel cabinet system according to claim 6, wherein the first bending member comprises a first bending portion, a second bending portion and a third bending portion, one end of the first bending portion is perpendicularly connected to the second connecting plate, the other end of the first bending portion extends in a direction away from the first cabinet door and is connected to the second bending portion, one end of the second bending portion away from the first bending portion extends in an inclined manner toward the first bending plate and is connected to the third bending portion, and the third bending portion is parallel to the guiding portion.

8. The in-cabinet interlock device for a parallel cabinet system according to claim 2, wherein the latch hook comprises a third connecting plate and a second bending member, the third connecting plate defines a fourth connecting hole, a screw passes through the fourth connecting hole to connect with the inner side of the second cabinet door, one end of the third connecting plate is adjacent to the side edge of the second cabinet door, and the other end of the third connecting plate is fixedly connected with the second bending member, and the second bending member can be clamped with the detour portion.

9. The in-cabinet interlocking device for the parallel cabinet system according to claim 8, wherein the second bending member includes a fourth bending portion, a fifth bending portion and a sixth bending portion, one end of the fourth bending portion is perpendicularly connected to the third connecting plate, the other end of the fourth bending portion extends in a direction away from the second cabinet door and is connected to the fifth bending portion, one end of the fifth bending portion away from the fourth bending portion is perpendicularly connected to the sixth bending portion, the fifth bending portion and the sixth bending portion are both located on a side of the fourth bending portion close to the column, the fourth bending portion and the sixth bending portion are located on the same side of the fifth bending portion, when the first cabinet door and the second cabinet door are both closed, the fourth folding portion and the sixth bending portion are vertically staggered, and when the second cabinet door is opened before the first cabinet door, the fourth folding portion and the sixth bending portion are locked to prevent the second cabinet door from being opened before the first cabinet door is opened.

10. The in-cabinet interlocking device for the parallel cabinet system according to claim 4, wherein the frame is a 9-fold section structure having a plurality of hole structures for installing the main lock and the gasket, the first cabinet door and the second cabinet door are provided with reinforcing ribs around, the reinforcing ribs include a first reinforcing rib arranged around the first cabinet door and located inside the first cabinet door and a second reinforcing rib arranged around the second cabinet door and located inside the second cabinet door, the first reinforcing rib is provided with a plurality of hole structures for installing the pushing mechanism, and the second reinforcing rib is provided with a plurality of hole structures for installing the lock hook.