CN211266248U

CN211266248U - Drawer device

Info

Publication number: CN211266248U
Application number: CN202020100903.8U
Authority: CN
Inventors: 刘慧科; 顾立立; 周宗良; 樊建荣
Original assignee: SUNRISE GROUP CO Ltd
Current assignee: SUNRISE GROUP CO Ltd
Priority date: 2020-01-17
Filing date: 2020-01-17
Publication date: 2020-08-14
Anticipated expiration: 2030-01-17

Abstract

The utility model discloses a drawer device, its characterized in that: drawer device slides and sets up in the cabinet internally, isolation earthing switch linkage locking device set up in drawer device inboard, be provided with the fuse in the drawer device, drawer device front end is provided with isolator operating head and drawer locking device, drawer device rear end is provided with isolator rear end side falcon, isolator operating head can drive isolator rear end side falcon rotates, isolator rear end side falcon can block into control isolator and earthing switch switching in the isolation earthing switch linkage locking device, the device push in, take out simple and conveniently, can with isolation earthing switch linkage locking device cooperation, can automatic locking after pushing the cabinet body, axial positioning is accurate, does not take place axial displacement and the static contact is closed in to the accuracy when isolator rotates.

Description

Drawer device

Technical Field

The utility model relates to a high-voltage distribution equipment technical field, concretely relates to vacuum load switch and fuse combination cabinet.

Background

The load switch-fuse combined cabinet is a common switch device for electrical manufacturers, the volume of the combined cabinet is generally large, and the response of the combined cabinet on the market is not fast enough when overload, short circuit and the like occur.

When the combined cabinet is operated, for example, when the fuse is replaced and maintained, if the parts needing to be disconnected and closed are not operated in sequence, life danger is easily caused, so that a special structure is needed to guide the operation of workers, and before the workers complete related operations, the structure can intelligently perform disconnection protection, and risks are reduced.

When a fault occurs, it is sometimes difficult to determine which combination cabinet is, so it is preferable to have a specific structure to express that the combination cabinet has a fault, thereby increasing work efficiency and reducing maintenance time.

Therefore, it is a problem to be solved by those skilled in the art how to modify the existing combination sideboard to overcome the above problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a compact structure, small, overload, the protection that opens circuit ability reinforce, the response is fast, main and auxiliary interlocking easy operation, the good reliability, vacuum load switch and fuse assembled cabinet that can not the maloperation.

Another object of the utility model is to provide a vacuum load switch, when closing, the isolating switch can not be opened and closed, and the lower cabinet door can not be opened; when the vacuum load switch is opened, the fuse isolating switch can be opened and closed, and the lower cabinet door is not blocked from being opened; when the lower cabinet door is opened, the vacuum load switch always keeps an opening state; when the lower cabinet door is closed, the opening of the vacuum load switch is automatically released, and the lower door main and auxiliary interlocks, which can be closed by the vacuum load switch, are interlocked.

Another object of the utility model is to provide a push, take out simple and convenient, can with the cooperation of isolation earthing switch linkage locking device, can lock automatically after pushing the cabinet body, axial positioning is accurate, does not take place axial displacement and the accurate drawer device who closes the static contact when isolator rotates.

Another object of the utility model is to provide a when ensureing that isolator separating brake, earthing switch combined floodgate, just can open the isolation earthing switch linkage locking device of lower cabinet door.

In order to achieve the above purpose, the utility model adopts the technical scheme that: the utility model provides a vacuum load switch and fuse assembled cabinet which characterized in that: the vacuum interlocking device comprises a cabinet body, a vacuum load switch, a lower door main interlocking, a lower door auxiliary interlocking, a drawer device and an isolation grounding switch linkage locking device;

the cabinet body is used for fixing all the equipment, a detachable lower cabinet door is arranged outside the cabinet body, and a cabinet body partition plate is arranged in the cabinet body;

the vacuum load switch is arranged at the top of the cabinet body, and a load switch half shaft is arranged in the vacuum load switch and used for switching on and off working current;

the lower door main interlocking device is used for ensuring that the opening operation of the lower cabinet door can be carried out when the vacuum load switch is opened and comprises a switching-on and switching-off interlocking crank arm, a main interlocking plate, a fixed plate and a limiting bottom plate, wherein one end of the switching-on and switching-off interlocking crank arm is connected with the load switch half shaft, the fixed plate is arranged on the outer side of a partition plate of the cabinet body, a kidney-shaped guide groove and a tension spring bolt are arranged on the main interlocking plate, a guide stud penetrating through the kidney-shaped guide groove is arranged on the fixed plate, a guide tension spring for lifting the main interlocking plate is arranged between the tension spring bolt and the guide stud, the lifting height of the main interlocking plate is controlled by the other end of the switching-on and switching-off interlocking crank arm, and the limiting bottom plate is;

the lower door auxiliary interlocking is used for ensuring that the vacuum load switch keeps opening when the lower cabinet door is opened and can release the opening keeping of the vacuum load switch when the lower cabinet door is closed, and comprises a dividing and combining linkage bent plate, an auxiliary interlocking ejector rod and an ejector rod guide bent plate, wherein the dividing and combining linkage bent plate is connected with a load switch half shaft, the dividing and combining linkage bent plate is connected to the top of the auxiliary interlocking ejector rod, the ejector rod guide bent plate is arranged on the outer side of a partition plate of the cabinet body, an opening pin is arranged on the auxiliary interlocking ejector rod, a pressure spring for lifting the auxiliary interlocking ejector rod is arranged between the ejector rod guide bent plate and the opening pin, a bent stopper is arranged at the bottom of the auxiliary interlocking ejector rod, penetrates through a kidney-shaped sliding groove formed at the bottom of the ejector rod guide bent plate and can be clamped with the lower cabinet door in a closed state;

drawer device slide set up in the cabinet is internal, isolation earthing switch linkage locking device set up in drawer device is inboard, be provided with the fuse in the drawer device, drawer device front end is provided with isolator operating head and drawer locking device, drawer device rear end is provided with isolator rear end side falcon, isolator operating head can drive isolator rear end side falcon rotates, isolator rear end side falcon can block into control isolator and earthing switch switching in the isolation earthing switch linkage locking device.

Specifically, isolation earthing switch linkage locking device includes isolator linkage connecting arm, isolation ground connection linkage connecting rod, earthing switch linkage connecting arm and earthing switch baffle, isolator linkage connecting arm one end with isolator rear end side falcon joint, isolation ground connection linkage connecting rod respectively with the isolator linkage connecting arm other end with earthing switch linkage connecting arm one end is connected, earthing switch linkage connecting arm other end control the earthing switch baffle rotates, isolator rear end side falcon card is gone into when in the isolation earthing switch linkage locking device, combined floodgate isolator, the earthing switch baffle rotates, the separating brake earthing switch to block down the cabinet door prevents the cabinet door is opened down.

As an improvement, be provided with spacing post on the limiting bottom plate, be provided with down a waist type groove and isolator handle hole on the cabinet door down, the isolator handle hole is used for operating the isolator operating head, spacing post can be in down a waist type inslot slides, when vacuum load switch closes the floodgate, limiting bottom plate covers the isolator handle hole, when vacuum load switch opens the floodgate, main interlocking board drives limiting bottom plate rises, exposes the isolator handle hole.

Specifically, drawer locking device includes hand-pulling plate, set-square, jam plate and locking extension spring, be provided with the fixed orifices on the set-square, the set-square passes through the fixed orifices with drawer device is fixed, the hand-pulling plate rotate set up in two between the set-square, two the jam plate rotates respectively set up in two the set-square outside, be provided with two waist shape sliding holes on the jam plate, the jam plate passes through two waist shape sliding hole lateral sliding set up in drawer device below, locking extension spring one end connect in waist shape sliding hole department's bolt, the other end connect in the jam plate with the bolt of set-square junction.

Specifically, the lower door auxiliary interlocking device further comprises a tripper crank arm and a tripper, wherein the tripper crank arm and the tripper are connected with each other and rotatably arranged on the outer side and the inner side of the partition board of the cabinet body, and one end of the tripper crank arm is rotatably connected with the auxiliary interlocking ejector rod.

As an improvement, the inner surface of the lower cabinet door is provided with a square hole, the cabinet body is provided with a latch plate corresponding to the square hole, and the lower cabinet door can be taken down only by lifting upwards to separate the square hole from the latch.

As an improvement, the outer end of the lock plate is provided with an inclined plane which enables the lock plate to slide inwards to pass through the cabinet body when the lock plate is in contact with the cabinet body.

As an improvement, the joints of the triangular plate, the hand-pulling plate and the triangular plate, which are connected with the locking plate, are all provided with waist-shaped rotating holes.

As an improvement, a lock plate guiding bent plate is further arranged on the partition plate of the cabinet body and used for guiding the main interlocking plate to move in the vertical direction.

Compared with the prior art, the utility model has the advantages of: the combined cabinet realizes automatic and rapid switching-off of the combined cabinet during overload and short circuit through the matching of the lower door main interlocking, the lower door auxiliary interlocking and the isolation grounding switch linkage locking device, when a vacuum load switch is switched off due to a fault, the limit bottom plate can be automatically lifted to expose an isolation switch operation hole, so that a worker can conveniently confirm a fault machine and carry out subsequent operation, because the lower cabinet door can not be opened before the grounding switch is switched on due to the matching of a grounding switch baffle and a latch, the grounding switch is switched on first and is simultaneously linked to disconnect the isolation switch, the lower cabinet door can be smoothly opened, after the lower cabinet door is opened, the auxiliary interlocking plate operates to keep the switching-off of the vacuum load switch and ensure safety, at the moment, the drawer device can be drawn out to replace the fuse, the fuse is conveniently, rapidly and safely replaced outside the cabinet body, and the drawer locking device is arranged on, the cabinet can be simply quick when pushing into the cabinet internal with cabinet body locking, and accurate with isolation earthing switch linkage locking device butt joint and axial positioning accurate, isolator can accurately close the static contact, isolator rear end side falcon at rear portion can realize the connection control to isolation earthing switch linkage locking device, install back down the cabinet door at last, main and auxiliary interlocking resets and closes a floodgate, this combination cabinet need carry out specific operation order and just can open down the cabinet door smoothly and maintain the change, ensure personnel's safety, and also can not function at will after opening, reduce the risk.

Drawings

Fig. 1 is a front view of the internal structure according to a preferred embodiment of the present invention;

fig. 2 is a rear view of the internal structure according to a preferred embodiment of the present invention;

fig. 3 is a cross-sectional view taken along a-a direction in fig. 1 according to a preferred embodiment of the present invention;

fig. 4 is a cross-sectional view taken along the direction B-B in fig. 1, in accordance with a preferred embodiment of the present invention;

FIG. 5 is a top view of a drawer arrangement according to a preferred embodiment of the present invention;

fig. 6 is a front view of a drawer arrangement according to a preferred embodiment of the present invention;

FIG. 7 is a schematic structural view of a drawer locking device according to a preferred embodiment of the present invention;

fig. 8 is an enlarged view of the main interlocking plate at a in fig. 3 according to a preferred embodiment of the present invention;

fig. 9 is an enlarged view of a connection structure of a fixing plate at b in fig. 1 according to a preferred embodiment of the present invention;

fig. 10 is an enlarged view of the movable schematic of the limiting bottom plate at c in fig. 3 according to a preferred embodiment of the present invention;

fig. 11 is an enlarged view of the structure of the operation hole of the isolating switch at d in fig. 1 according to a preferred embodiment of the present invention;

fig. 12 is an enlarged view of the crank arm structure of the trip unit shown in fig. 1 at e according to a preferred embodiment of the present invention;

fig. 13 is an enlarged view of the movement of the earthing switch baffle at f in fig. 1 according to a preferred embodiment of the present invention.

Detailed Description

The following description is presented to disclose the invention so as to enable any person skilled in the art to practice the invention. The preferred embodiments in the following description are given by way of example only, and other obvious variations will occur to those skilled in the art.

In the description of the present invention, it should be noted that, for the orientation words, if there are terms such as "center", "lateral", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., the orientation and positional relationship indicated are based on the orientation or positional relationship shown in the drawings, and only for the convenience of describing the present invention and simplifying the description, it is not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and not be construed as limiting the specific scope of the present invention.

The present invention will be further explained with reference to the accompanying drawings:

as shown in fig. 1 to 13, a preferred embodiment of the present invention includes a cabinet 1, a vacuum load switch 2, a lower door main interlock 3, a lower door auxiliary interlock 4, a drawer device 5 and an isolation earthing switch interlock locking device 6.

The cabinet body 1 is used for fixing all the above-mentioned equipment, and the cabinet body 1 outside is provided with detachable lower cabinet door 11, is provided with cabinet body baffle 12 in the cabinet body 1.

The vacuum load switch 2 is arranged at the top of the cabinet body 1, and a load switch half shaft 21 is arranged in the vacuum load switch for switching on and off working current.

The lower door main interlocking lock 3 is used for ensuring that the isolating switch 61 can not be operated when the vacuum load switch 2 is switched on and the opening operation of the lower cabinet door 11 can be carried out when the vacuum load switch 2 is switched off, and comprises a switching-on and switching-off interlocking crank arm 31 and a main interlocking plate 32, the fixing plate 33 and the limiting bottom plate 34, one end of the opening and closing linkage crank arm 31 is connected with the load switch half shaft 21, the fixing plate 33 is arranged on the outer side of the cabinet body partition plate 12, a kidney-shaped guide groove 321 and a tension spring bolt 322 are arranged on the main linkage plate 32, a guide stud 331 penetrating through the kidney-shaped guide groove 321 is arranged on the fixing plate 33, a guide tension spring 35 used for lifting the main linkage plate 32 is arranged between the tension spring bolt 322 and the guide stud 331, the lifting height of the main linkage plate 32 is controlled by the other end of the opening and closing linkage crank arm 31, the limiting bottom plate 34 is hinged to the bottom end of the main linkage plate 32, a lock plate guide bent plate 36 is further arranged on the cabinet body partition plate 12, and the lock plate guide bent plate 36 is used for guiding the main.

The lower door auxiliary interlocking 4 is used for ensuring that the vacuum load switch 2 keeps opening when the lower cabinet door 11 is opened, the opening of the vacuum load switch 2 keeps being released when the lower cabinet door 11 is closed, and the lower cabinet door can be closed, and comprises a switching linkage bent plate 41, an auxiliary interlocking ejector rod 42 and an ejector rod guide bent plate 43, wherein the switching linkage bent plate 41 is connected with the load switch half shaft 21 and used for controlling the switching of the vacuum load switch 2, the switching linkage bent plate 41 is connected to the top of the auxiliary interlocking ejector rod 42, the ejector rod guide bent plate 43 is arranged on the outer side of the cabinet body partition plate 12, the auxiliary interlocking ejector rod 42 is provided with an opening pin 421, a pressure spring 44 for lifting the auxiliary interlocking ejector rod 42 is arranged between the ejector rod guide bent plate 43 and the opening pin 421, the bottom of the auxiliary interlocking ejector rod 42 is provided with a bent rail 422, and the bent rail 422 passes through a kidney-shaped sliding groove 431 formed in the.

Drawer device 5 slides and sets up in cabinet body 1, isolation earthing switch linkage locking device 6 sets up in drawer device 5 inboard, be provided with fuse 51 in the drawer device 5, drawer device 5 front end is provided with isolator operating head 52 and drawer locking device 53, drawer device 5 rear end is provided with isolator rear end side falcon 54, isolator operating head 52 can drive isolator rear end side falcon 54 and rotate, isolator rear end side falcon 54 can block into control isolator 61 and earthing switch 62 switching in isolation earthing switch linkage locking device 6.

The isolation and grounding switch linkage locking device 6 comprises an isolation switch linkage connecting arm 63, an isolation and grounding linkage connecting rod 64, a grounding switch linkage connecting arm 65 and a grounding switch baffle 66, one end of the isolation switch linkage connecting arm 63 is clamped with a tenon 54 at the rear end of the isolation switch, the isolation and grounding linkage connecting rod 64 is respectively connected with the other end of the isolation switch linkage connecting arm 63 and one end of the grounding switch linkage connecting arm 65, the other end of the grounding switch linkage connecting arm 65 controls the grounding switch baffle 66 to rotate, when the tenon 54 at the rear end of the isolation switch is clamped into the isolation and grounding switch linkage locking device 6, the closing isolation switch 61 and the grounding switch baffle 66 rotate, the opening grounding switch 62 is clamped into the lower cabinet door 11 to prevent the lower cabinet door 11 from being opened.

The limiting bottom plate 34 is provided with a limiting column 341, the lower cabinet door 11 is provided with a lower door waist-shaped groove 111 and an isolating switch operation hole 112, the isolating switch operation hole 112 is used for operating the isolating switch operation head 52, the limiting column 341 can slide in the lower door waist-shaped groove 111, when the vacuum load switch 2 is switched on, the limiting bottom plate 34 covers the isolating switch operation hole 112, and when the vacuum load switch 2 is switched off, the main interlocking plate 32 drives the limiting bottom plate 34 to rise to expose the isolating switch operation hole 112.

The lower door auxiliary interlocking 4 further comprises a tripper connecting lever 45 and a tripper 46, the tripper connecting lever 45 and the tripper 46 are connected with each other and rotatably arranged on the outer side and the inner side of the partition board 12 of the cabinet body, one end of the tripper connecting lever 45 is rotatably connected with the auxiliary interlocking ejector rod 42, when overload greater than a set value or short-circuit current occurs, the fuse 51 is fused, a fusing impactor pops out, the jacking tripper 46 drives the tripper connecting lever 45 to rotate, so that the auxiliary interlocking ejector rod 42 moves downwards, the load switch half shaft 21 is pulled to rotate, and the vacuum load switch 2 is switched off.

The inner surface of the lower cabinet door 11 is provided with a square hole 113, the cabinet body 1 is provided with a latch plate 114 corresponding to the square hole 113, and the lower cabinet door 11 can be removed only by lifting upwards to separate the square hole 113 from the latch plate 114.

When the load switch is switched on: the operation sequence is that the lower cabinet door 11 is closed first, the grounding switch 62 is divided, the isolating switch 61 is closed again, the vacuum load switch 2 is closed finally, the opening and closing linkage crank arm 31 rotates downwards to the lowest position, the opening and closing linkage crank arm 31 abuts against the top surface of the main interlocking plate 32 to force the main interlocking plate 32 to slide downwards to the lowest position, the main interlocking plate 32 vertically slides downwards under the guidance of the guide stud 331, the tension spring bolt 322 and the lock plate guide bent plate 36, the limit bottom plate 34 and the limit column 341 slide downwards to the lowest position, the limit bottom plate 34 covers the isolating switch operation hole 112, the limit column 341 blocks the lower arc surface of the lower door waist-shaped groove 111 of the lower cabinet door 11, therefore, the lower cabinet door 11 cannot move upwards and depart from the latch plate 114, the lower cabinet door 114 buckles the lower cabinet 11, the lower cabinet door 11 cannot be opened, the limit bottom plate 34 covers the isolating switch operation hole 112, and the isolating switch 61 cannot be operated.

When the load switch is opened: the operation sequence is that firstly the vacuum load switch 2 is separated, then the isolating switch 61 is separated, then the grounding switch 62 is closed, finally the lower cabinet door 11 is opened, the switching linkage connecting lever 31 is upwards rotated to the highest position, the main linkage locking plate 32 is always tightly attached to the switching linkage connecting lever 31 to be ascended to the highest position due to the action of the guide tension spring 35, the guide stud 331, the tension spring bolt 322 and the locking plate guide bent plate 36, the position limit bottom plate 34 is separated from the isolating switch operation hole 112, the switching isolating switch 61 can be switched by utilizing a special operation rod, the grounding switch 62 is closed simultaneously when the switching isolating switch 61 is switched on due to the linkage of the isolating switch 61 and the grounding switch 62, when the grounding switch 62 is closed, the grounding switch baffle plate 66 is separated from the lower door stop 13, at the moment, the lower cabinet door 11 can be upwards moved to enable 6 square holes 113 of the lower cabinet door 11 to be aligned with 6 door latches to pull out the lower cabinet door, the drawer device 5 can then be pulled out and the fuse 51 replaced.

When the lower cabinet door 11 is closed, the top frame of the lower cabinet door 11 presses the bent gear 422 of the auxiliary interlocking ejector rod 42, the auxiliary interlocking ejector rod 42 is pulled down to force the compression spring 44 to compress and store energy, when the lower cabinet door 11 is opened, the bent gear 422 constraint is released, the energy of the compression spring 44 is released, the auxiliary interlocking ejector rod 42 moves upwards to impact the opening and closing linkage bent plate 41, the load switch half shaft 21 is forced to rotate, and the vacuum load switch 2 is opened.

After the lower cabinet door 11 is opened, the bent gear 422 of the auxiliary interlocking ejector rod 42 is not restrained, in this state, if the vacuum load switch 2 is switched on, the load switch half shaft 21 rotates to drive the switching interlocking bent plate 41 to rotate downwards, the auxiliary interlocking ejector rod 42 is pressed to move downwards, the compressed spring 44 compresses and stores energy, when the switching-on action is finished, the auxiliary interlocking ejector rod 42 immediately resets under the action of the compressed spring 44 to impact the switching interlocking bent plate 41 to force the load switch half shaft 21 to rotate reversely, the vacuum load switch 2 is switched off, and therefore the vacuum load switch 2 cannot be switched on as long as the lower cabinet door 11 is opened.

The drawer locking device 53 comprises a hand-pulling plate 531, three-corner plates 532, a locking plate 533 and a locking tension spring 534, wherein the three-corner plate 532 is provided with a fixing hole 535, the three-corner plate 532 is fixed with the drawer device 5 through the fixing hole 535, the hand-pulling plate 531 is rotatably arranged between the two three-corner plates 532, the two locking plates 533 are respectively rotatably arranged at the outer sides of the two three-corner plates 532, the joints between the three-corner plates 532 and the hand-pulling plate 531 and the joints between the three-corner plates 532 and the locking plate 533 are both provided with waist-shaped rotating holes 536, the locking plate 533 is provided with two waist-shaped sliding holes 537, the locking plate 533 is transversely slidably arranged below the drawer device 5 through the two waist-shaped sliding holes 537, one end of the locking tension spring 534 is connected with a bolt at the waist-shaped sliding hole 537, the other end of the locking plate 533 is connected with the bolt at the joints between the locking plate 533 and the three-corner plates 532, the, thus, when the drawer device 5 is pushed into the cabinet 1, the inclined surface 538 of the outer side of the locking plate 533 firstly touches the cabinet 1, the locking plate 533 moves towards the hand pulling plate 531 under the action of the inclined surface 538, the triangle plate 532 is forced to rotate towards the hand pulling plate 531, and the locking difficulty is reduced.

The three fuses 51 are respectively arranged on three phases of the isolating switch 61, the isolating switch 61 is arranged in the drawer device 5, and after the lower cabinet door 11 is opened, the drawer device 5 can be drawn out from the cabinet body 1 to a limited position, and the fuse 51 can be replaced outside the cabinet body 1; when the drawer device 5 is pushed in, the rear end side falcon 54 of the isolating switch can be accurately embedded into the square groove of the linkage connecting arm 63 of the isolating switch, and because the isolating switch 61 is linked with the grounding switch 62, the grounding switch 62 is only divided or combined into two determined positions, so that the linkage connecting arm 63 of the isolating switch is only divided into two determined positions, and when the drawer device 5 is pushed in, the position of the rear end side falcon 54 of the isolating switch is also fixed, so that the rear end side falcon 54 of the isolating switch can be accurately pushed into the square groove of the linkage connecting arm 63 of the isolating switch, and the linkage connecting arm 63 of the isolating switch is axially limited in the cabinet body 1 and can not move.

In order to prevent the drawer device 5 from moving towards the lower cabinet door 11 when the isolating switch 61 rotates, the drawer locking device 53 is further arranged on the drawer device 5, when the locking plate 533 is completely pushed into the cabinet body 1, the locking tension spring 534 releases energy, the triangular plate 532 rotates to the original position, the locking plate 533 extends out and is clamped in the cabinet body 1, the tail end of the drawer device 5 is jacked into the square groove of the isolating switch linkage connecting arm 63 by the square tenon 54 at the rear end of the isolating switch, the locking plate 533 is clamped by the cabinet body 1 in front, the drawer device 5 cannot move axially, so that the static contact can be accurately closed when the isolating switch 61 rotates, when the drawer device 5 needs to be pulled out, the hand pulling plate 531 is pulled outwards by hand, the hand pulling plate 531 moves outwards, the triangular plate 532 rotates towards the hand pulling plate 531, the locking plate 533 is forced to retract towards the hand pulling plate 531 and then slides out of the cabinet body 1, meanwhile, the locking tension spring 534 stretches the energy storage, the drawer device 5 can be, when the hand releases the hand-pulling plate 531, the locking tension spring 534 is released, the triangle plate 532 rotates to the original position, and the locking plate 533 is restored to the original position.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the principles of the present invention may be applied to any other embodiment without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. A drawer arrangement, characterized by: drawer device slides and sets up in the cabinet internally, isolation earthing switch linkage locking device set up in drawer device is inboard, be provided with the fuse in the drawer device, drawer device front end is provided with isolator operating head and drawer locking device, drawer device rear end is provided with isolator rear end side falcon, isolator operating head can drive isolator rear end side falcon rotates, isolator rear end side falcon can block into control isolator and earthing switch switching in the isolation earthing switch linkage locking device.

2. A drawer arrangement according to claim 1, wherein: drawer locking device includes hand-pulling plate, set-square, jam plate and locking extension spring, be provided with the fixed orifices on the set-square, the set-square passes through the fixed orifices with drawer device is fixed, the hand-pulling plate rotate set up in two between the set-square, two the jam plate rotates respectively and sets up in two the set-square outside, be provided with two waist shape sliding holes on the jam plate, the jam plate passes through two waist shape sliding hole lateral sliding set up in drawer device below, locking extension spring one end connect in the bolt of waist shape sliding hole department, the other end connect in the jam plate with the bolt of set-square junction.

3. A drawer arrangement according to claim 2, wherein: the outer end of the lock plate is provided with an inclined plane which enables the lock plate to slide inwards to pass through the cabinet body when the lock plate is in contact with the cabinet body.

4. A drawer arrangement according to claim 2, wherein: the triangular plate and the hand-pulling plate and the triangular plate and the locking plate are connected through waist-shaped rotating holes.