CN110323679B

CN110323679B - Switch cabinet

Info

Publication number: CN110323679B
Application number: CN201910673871.2A
Authority: CN
Inventors: 徐世伟
Original assignee: Zhejiang Jugao Electric Power Equipment Co ltd
Current assignee: Zhejiang Jugao Electric Power Equipment Co ltd
Priority date: 2019-07-25
Filing date: 2019-07-25
Publication date: 2020-07-28
Anticipated expiration: 2039-07-25
Also published as: CN110323679A

Abstract

The invention relates to the technical field of power equipment, and discloses a switch cabinet, which adopts the technical scheme that the switch cabinet comprises a bottom plate, a back plate, a top plate, a door plate and two side plates, wherein a positioning groove and two parallel mounting grooves are formed in the bottom plate; the end faces of the two side plates, which are close to each other, are respectively provided with a fixing groove, two ends of the back plate are respectively positioned in the two fixing grooves, the back plate is connected with the side plate adjacent to the back plate through a fastening piece, the top plate is fixed on the upper sides of the back plate and the side plates through mounting pieces, and the door plate is hinged on one of the side plates through hinges; the end faces of the two side plates, which are close to each other, are provided with a plurality of separating grooves extending along the length direction of the side plates, a separating plate is inserted between any two separating grooves with equal height, and a limiting part for limiting the separating plate to be separated from the side plates is arranged on each side plate. The invention has the effect of saving more labor during carrying.

Description

Switch cabinet

Technical Field

The invention relates to the technical field of power equipment, in particular to a switch cabinet.

Background

The switch cabinet is an electrical device and mainly used for opening, closing, controlling and protecting the electrical device in the process of generating, transmitting, distributing and converting electric energy of an electric power system. The outside 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 an instrument, automatic control, a motor magnetic switch, various alternating current contactors and the like.

The traditional switch cabinet is of an integrated structure, and the switch cabinet needs to be transported to a designated position by a hydraulic vehicle or a flat car for use after being processed and produced at different stations. When in transportation, at least four workers are required to lift the switch cabinet onto the hydraulic vehicle or the flat car, and the switch cabinet is conveyed to a designated position through the hydraulic vehicle or the flat car and then is manually conveyed to the ground. However, the switch cabinets produced integrally have large volume and mass, and workers can only carry the switch cabinets in a whole cabinet during transferring, so that the workers need to consume large strength when carrying the switch cabinets each time and need to be improved.

Disclosure of Invention

Aiming at the defects in the prior art, the invention provides a switch cabinet which has the effect of saving more labor during carrying.

In order to achieve the purpose, the invention provides the following technical scheme: a switch cabinet comprises a bottom plate, a back plate, a top plate, a door plate and two side plates, wherein the bottom plate is provided with a positioning groove and two mounting grooves which are perpendicular to the positioning groove and are parallel to each other; the end faces, close to each other, of the two side plates are respectively provided with a fixing groove, two ends of the back plate are respectively positioned in the two fixing grooves, the back plate is connected with the side plate adjacent to the back plate through at least one fastener, the top plate is fixed on the upper sides of the back plate and the side plates through mounting pieces, and the door plate is hinged to one of the side plates through a hinge; the end faces of the two side plates, which are close to each other, are provided with separating grooves extending along the length direction of the side plates, a separating plate is inserted between any two separating grooves with equal height, and the side plates are provided with limiting parts for limiting the separating plates to be separated from the side plates.

By adopting the technical scheme, the switch cabinet is not spliced before being transported, workers can sequentially carry the bottom plate, the back plate, the top plate, the door plate and the side plates to the transport vehicle, and then all the plates are stacked and stored; and after the plates are transported to a use site, the plates are sequentially moved out and then spliced and assembled. Compared with the whole cabinet transportation, the mode has the advantages that the labor consumed during one-time transportation of workers is less, and the labor-saving effect is achieved. During assembly, the two side plates are sequentially inserted into the two mounting grooves, the back plate is inserted into the positioning groove, and then the side plates and the back plate are fixed through the fasteners; then, placing the top plate on the upper sides of the back plate and the side plates, fixing the top plate through the mounting piece, mounting a hinge on one side plate and hinging the door plate; and finally, the partition plates are inserted into the partition grooves, so that the assembled switch cabinet is partitioned into a plurality of cavities for accommodating different equipment.

The invention is further provided that the fastener comprises an L-shaped fastening block, a fastening spring group connected to the fastening block and a pressing block fixed at the other end of the fastening spring group, wherein a fastening bolt in threaded connection with the side plate and a pressing bolt in threaded connection with the back plate after penetrating through the pressing block are arranged on the fastening block in a penetrating manner.

Through adopting above-mentioned technical scheme, curb plate and backplate installation back in place, with the one end butt of fastening block on the curb plate, the other end sets up towards the backplate, fastening spring group pressurized deformation this moment and to the briquetting produce the effort towards the backplate for the briquetting compresses tightly on the backplate. And then the fastening bolt and the compression bolt are screwed down to fix the fastening piece at the joint of the side plate and the back plate, so that the back plate and the side plate are not easy to separate. The arrangement of the fastening spring group enables the distance between the fastening block and the pressing block to be adjustable, so that the application range of the fastening piece is expanded.

The invention is further configured to: the upper end face of the side plate is provided with an extension block, the top plate is provided with an extension hole for the extension block to pass through, and the side wall of the extension block is annularly cut with an annular groove; the installed part includes two installation pieces of one end mutual articulated, and the other end of two installation pieces passes through mounting bolt to be connected, forms the mounting hole when two installation pieces are connected, the internal diameter of mounting hole is less than the diameter of extension piece, is greater than the diameter of the cylinder that the ring channel diapire formed.

Through adopting above-mentioned technical scheme, when the installation roof, arrange the roof in the curb plate directly over earlier and make the extension piece stretch into in the extension hole, the ring channel stretches out the roof, and people's accessible construction bolt is fixed in the outside of ring channel with two installation pieces. At the moment, the mounting block is limited by the upper inner wall and the lower inner wall of the annular groove and cannot move relative to the extension block, so that the separation of the top plate and the side plate is limited.

The invention is further configured to: the locating part includes stopper and two inserted bars with curb plate sliding connection, and two inserted bars are located the upper and lower both sides of separating the groove respectively, two the terminal surface that the curb plate is relative all is equipped with the spacing groove with separating the groove intercommunication, the one end of stopper articulates at the spacing inslot, and the other end is equipped with the jack that supplies the inserted bar to stretch into.

Through adopting above-mentioned technical scheme, before the installation division board, earlier with stopper upside rotation until with the bottom surface butt of spacing groove, remove the inserted bar again and make it stretch into the jack, stopper and separation groove contactless this moment can not influence the immigration of division board. After the division board inserted the separating groove, rotated the stopper to the downside until with the bottom surface butt of spacing groove, removed the inserted bar of downside again and made it stretch into the jack, the stopper was located the division board and keeps away from one side of backplate and can restrict the division board and shift out this moment, and the inserted bar can restrict the relative curb plate rotation of stopper, has improved the stability of stopper.

The invention is further configured to: the side plates are provided with two dovetail grooves extending along the horizontal direction, the two dovetail grooves are respectively positioned on the upper side and the lower side of the separation groove and are provided with dovetail blocks in a sliding mode, and the two insertion rods are respectively and fixedly connected with the two dovetail blocks.

Through adopting above-mentioned technical scheme, when removing the inserted bar, the forked tail piece can be followed rather than close dovetail and remove for the inserted bar can not separate with the curb plate is complete, and stability is good.

The invention is further configured to: two stop grooves in interference fit with the inserted rods are arranged on the inner wall, far away from the dovetail block, of the limiting groove, and the two stop grooves correspond to the two inserted rods respectively in position.

Through adopting above-mentioned technical scheme, the inserted bar passes and stretches into rather than the similar locking groove after the jack, and locking groove and inserted bar interference fit play the effect of fixed inserted bar, avoid the inserted bar to remove at will and influence the spacing effect of stopper.

The invention is further configured to: the door plate is provided with a through hole, the inner wall of the through hole is provided with a movable groove, a movable plate for sealing the opening of the through hole is arranged in the movable groove in a sliding mode, and the movable plate is provided with a locking piece for limiting the movable plate to move relative to the door plate.

Through adopting above-mentioned technical scheme, when cubical switchboard broke down, maintenance personal need open the door plant and overhaul, nevertheless in the narrow and small environment in some spaces, if the cabinet door can lead to the space to block up is opened to the side direction, inconvenient maintenance personal overhauls the processing. People can move the movable plate to one side close to the movable groove at the moment, so that the opening of the through hole is opened, and maintenance personnel can stretch hands into the cabinet body from the through hole without opening the door plate laterally, thereby reasonably utilizing the space and facilitating the maintenance. When the through hole is not used, the movable plate is pulled to the side far away from the movable groove, so that the movable plate closes the opening of the through hole and is locked by the locking piece.

The invention is further configured to: the locking piece comprises a rotating rod, a clamping block fixed on the side wall of the rotating rod and a hook block arranged on the clamping block, a rotating groove is formed in the end face, away from the movable groove, of the movable plate, and the rotating rod is rotatably connected in the rotating groove; the perforating hole is close to and is equipped with the locking groove that supplies the fixture block to change over to on the inner wall in rotation groove, the downside inner wall of locking groove be equipped with collude a complex groove, the terminal surface that the backplate was kept away from to the dwang is equipped with the square groove, the square groove interpolation is equipped with the square bar of wearing out the fly leaf.

Through adopting above-mentioned technical scheme, when the opening of perforating hole was sealed to the fly leaf, the square bar that rotates made its drive dwang and fixture block to rotating to the one side that is close to the locking groove, colluded the piece and rotates thereupon and stretch into colluding the groove, colluded the inner wall in groove and can restrict colluding the piece rather than relative movement this moment to restriction fly leaf relative door plant removes, avoids the opening of perforating hole to expose and leads to the dust to get into inside the cubical switchboard. When the movable plate is opened, the square rod is rotated to drive the hook block to rotate out of the hook groove, and then the square rod is horizontally pushed to drive the movable plate to move.

The invention is further configured to: the rotating rod is sleeved with a torsion spring, and two ends of the torsion spring are respectively abutted against the inner walls opposite to the rotating grooves; when the opening of the through hole is closed by the movable plate and the torsion spring is in a natural state, the hook block extends into the hook groove.

Through adopting above-mentioned technical scheme, receive vibrations when people rotate square pole or cubical switchboard carelessly and lead to colluding piece and colluding the groove separation, torsional spring distortion warp and produce torsion, help colluding piece automatic re-setting to colluding in the groove to stability when fly leaf and door plant locking has been improved.

In conclusion, the invention has the following beneficial effects:

1. the switch cabinet is formed by assembling a bottom plate, a back plate, a top plate, a door plate and side plates instead of being integrally arranged, so that the switch cabinet is not assembled firstly during transportation, and workers only need to transport each plate to a transport vehicle or unload the plate from the transport vehicle one by one, so that the switch cabinet is more labor-saving and convenient to transport compared with the whole cabinet;

2. the partition plate can divide the interior of the switch cabinet into a plurality of independent chambers, so that different switch devices can be conveniently distinguished; when the limiting block rotates to the upper side, the insertion rod on the upper side penetrates through the insertion hole and then extends into the stop groove on the upper side, and the limiting block is prevented from rotating randomly to influence the insertion of the dividing plate; when the limiting block rotates to the lower side, the insertion rod on the lower side penetrates through the insertion hole and then extends into the limiting groove on the lower side, so that the partition plate is limited to move out of the separation groove;

3. in an environment with a narrow space, the movable plate is moved to expose the opening of the through hole without laterally opening the door plate, so that the space utilization is reasonable, and the operation and the maintenance are convenient; when the movable plate closes the opening of the through hole, the square rod is rotated to drive the rotating rod, the clamping block and the hook block to rotate towards one side close to the locking groove, so that the hook block extends into the hook groove to limit the relative movement of the movable plate and the door panel; the torsion spring can drive the hook block to automatically reset when the hook block is separated from the hook groove, so that the stability of the hook block and the hook groove in matching is improved.

Drawings

FIG. 1 is a schematic structural view of the present embodiment;

FIG. 2 is a schematic view showing a partial explosion of the fixing groove in the present embodiment;

FIG. 3 is a schematic view highlighting a partial explosion of the fastener of the present embodiment;

FIG. 4 is an exploded view of the door panel of the present embodiment;

FIG. 5 is an enlarged schematic view at A in FIG. 4;

FIG. 6 is a schematic sectional view of the door panel in the present embodiment;

fig. 7 is a partial schematic view highlighting the position-limiting element in the present embodiment.

Reference numerals: 1. a base plate; 11. positioning a groove; 12. mounting grooves; 2. a back plate; 3. a top plate; 31. an extension hole; 4. a door panel; 41. a through hole; 411. a locking groove; 412. hooking a groove; 42. a movable groove; 43. a movable plate; 431. a rotating groove; 44. a locking member; 441. rotating the rod; 442. a clamping block; 443. hooking the block; 444. a square groove; 445. a square bar; 446. a torsion spring; 5. a side plate; 51. an extension block; 511. an annular groove; 52. a separation tank; 53. a partition plate; 54. a limiting member; 541. a limiting block; 542. inserting a rod; 543. a jack; 55. a limiting groove; 551. a stopper groove; 56. a dovetail groove; 57. a dovetail block; 58. fixing grooves; 6. a fastener; 61. a fastening block; 611. fastening a bolt; 612. a hold-down bolt; 62. fastening a spring set; 63. briquetting; 7. mounting blocks; 71. mounting holes; 72. installing a bolt; 73. and (6) mounting the nut.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

The embodiment discloses a switch cabinet, as shown in fig. 1 and 2, including bottom plate 1, backplate 2, roof 3, door plant 4 and two blocks of curb plates 5, the up end of bottom plate 1 is equipped with constant head tank 11 and two mounting grooves 12 that are parallel to each other, and two mounting grooves 12 are close to the left and right sides both ends of bottom plate 1 respectively, and constant head tank 11 is close to the rear end of bottom plate 1 and with mounting groove 12 mutually perpendicular. The lower extreme of two blocks of curb plates 5 is laid respectively in two mounting grooves 12, the lower extreme of backplate 2 is laid in constant head tank 11, and backplate 2 and two blocks of curb plates 5 all connect through two sets of fasteners 6. Roof 3 is located 2 and curb plate 5 of backplate directly over and all is connected through two sets of installed parts with every curb plate 5, and door plant 4 passes through the hinge and articulates on left curb plate 5. The switch cabinet is assembled by a plurality of plates and is formed instead of being integrally arranged, so that workers can save more labor when carrying.

As shown in fig. 1 and 2, the two side plates 5 are provided with fixing grooves 58 extending in the vertical direction near the end surfaces of each other, the left end and the right end of the back plate 2 are respectively inserted into the two fixing grooves 58, the fixing grooves 58 play a role in initially positioning the back plate 2, and the back plate 2 is prevented from moving back and forth relative to the side plates 5.

As shown in fig. 1 and 3, the fastening member 6 includes a fastening block 61, a fastening spring set 62 and a pressing block 63, the fastening block 61 is L-shaped, two sides of the fastening block 61 are respectively parallel to the back plate 2 and one of the side plates 5, the fastening spring set 62 includes a plurality of springs distributed side by side, one end of each spring is fixed on a side wall of the fastening block 61, the other end of each spring is fixedly connected with the pressing block 63, a fastening bolt 611 and a pressing bolt 612 penetrate through the fastening block 61 and then are in threaded connection with the side plate 5, the pressing bolt 612 penetrates through the fastening block 61 and the pressing block 63 in sequence and then is in threaded connection with the back plate 2, after the side plate 5 and the back plate 2 are placed in position, the fastening block 61 is attached to a joint of the side plate 5 and the pressing bolt 611 are in threaded connection with the side plate 5, and the pressing bolt 612 is in threaded connection with the back plate 2, at this time, the side plate 5 and.

As shown in fig. 2 and 3, two extending blocks 51 are fixed on the upper end surfaces of the two side plates 5, the two extending blocks 51 are respectively close to the front and rear ends of the side plates 5, an annular groove 511 is formed on the side wall of each extending block 51, and four corners of the top plate 3 are respectively provided with one extending hole 31. The installed part includes two installation pieces 7, and the one end of two installation pieces 7 is articulated each other, and the other end is worn to be equipped with mounting bolt 72, and threaded connection has rather than complex mounting nut 73 on mounting bolt 72. The middle part forms a mounting hole 71 when the two mounting blocks 7 are connected, and the inner diameter of the mounting hole 71 is smaller than the diameter of the extension block 51 and larger than the diameter of the column formed by the bottom wall of the annular groove 511. When the top plate 3 is installed, the extending blocks 51 on the two side plates 5 respectively penetrate through the four extending holes 31, then the installing bolts 72 penetrate through the two installing blocks 7 and are in threaded connection with the installing nuts 73, and at the moment, the installing blocks 7 are fixed in the annular groove 511 and can limit the top plate 3 to move upwards, so that the effect of fixing the top plate 3 is achieved.

As shown in fig. 1, the door panel 4 is provided with a through hole 41, a movable groove 42 is provided on the right inner wall of the through hole 41, a movable plate 43 is slidably provided in the movable groove 42, and a locking member 44 is provided on the movable plate 43. When the movable plate 43 moves to the left, the opening of the through hole 41 can be closed, so that dust is prevented from entering the inside of the switch cabinet to influence the operation of the switch device. In an environment with a narrow space, people can move the movable plate 43 to open the through hole 41 to overhaul the switch device, and compared with a mode of laterally opening the door panel 4, the switch device is reasonable in space utilization and convenient to maintain.

As shown in fig. 4 and 5, the locking member 44 includes a rotating rod 441, a latch 442, and a hook 443, a rotating groove 431 is formed in the left side wall of the movable plate 43, the front and rear ends of the rotating rod 441 are rotatably connected to the front and rear inner walls of the rotating groove 431, a square groove 444 is formed in the front end surface of the rotating rod 441, and a square rod 445 penetrating through the movable plate 43 is inserted into the square groove 444. The latching block 442 is fixed to the side wall of the rotating rod 441, and the hooking block 443 is fixed to an end of the latching block 442 away from the rotating rod 441.

As shown in fig. 5 and 6, a locking groove 411 is provided on the left inner wall of the through hole 41, and a hook groove 412 is provided on the lower inner wall of the locking groove 411. When the movable plate 43 moves to the left and closes the opening of the through hole 41, the square rod 445 is rotated to drive the rotating rod 441, the locking block 442 and the hook block 443 to move to a side close to the locking slot 411, so that the hook block 443 extends into the hook slot 412, and at this time, the hook block 443 can limit the movable plate 43 to move relative to the door panel 4, thereby preventing the opening of the through hole 41 from being exposed.

As shown in fig. 4 and 5, a torsion spring 446 is sleeved outside the rotating rod 441, both ends of the torsion spring 446 abut against the front and rear inner walls of the rotating groove 431, respectively, and the hook 443 extends into the hook groove 412 when the torsion spring 446 is in a natural state. If people rotate the square rod 445 or the hook 443 by accident and are separated from the square groove 444, the torsion spring 446 is twisted and deformed to generate a torsion force, and the torsion force drives the hook 443 to automatically rotate towards the hook groove 412, thereby improving the stability of the movable plate 43.

As shown in fig. 1 and 7, the end surfaces of the two side plates 5 close to each other are provided with separation grooves 52, the separation grooves 52 horizontally extend along the length direction of the side plates 5, a separation plate 53 is inserted between any two separation grooves 52 with equal height, and the side plates 5 are provided with a stopper 54 located at the front side of the separation plate 53. The partition plate 53 can divide the cavity inside the switch cabinet into a plurality of independent chambers, so that different switch devices can be distinguished conveniently.

As shown in fig. 1 and 7, the limiting member 54 includes a limiting block 541 and two insertion rods 542, the end surfaces of the two side plates 5 close to each other are both provided with a limiting groove 55 communicated with the separation groove 52, the limiting groove 55 is close to the front end of the separation groove 52, one end of the limiting block 541 is hinged in the limiting groove 55, the hinged end is located on the upper side of the separation groove 52, the other end is provided with an insertion hole 543, and the right inner wall of the limiting groove 55 is provided with two stopping grooves 551 respectively in interference fit with the two insertion rods 542. Each side plate 5 is provided with two dovetail grooves 56 extending along the horizontal direction, the two dovetail grooves 56 are respectively positioned at the upper side and the lower side of the separation groove 52, the dovetail grooves 56 are internally and slidably provided with dovetail blocks 57, and two insertion rods 542 are respectively fixed on the rear end surfaces of the two dovetail blocks 57.

As shown in fig. 1 and 7, before the partition plate 53 is mounted, the limiting block 541 is rotated upward until it abuts against the bottom surface of the limiting groove 55, at this time, the insertion rod 542 on the upper side is aligned with the insertion hole 543, and then the insertion rod 542 on the upper side is inserted into the stopping groove 551 on the upper side after passing through the insertion hole 543, so as to prevent the limiting block 541 from affecting the movement of the partition plate 53. When the partition plate 53 moves into the partition groove 52 and abuts against the back plate 2, the upper insertion rod 542 is pulled out, the limiting block 541 is rotated downward until the limiting block abuts against the bottom surface of the limiting groove 55, and then the lower insertion rod 542 passes through the insertion hole 543 and is embedded into the lower stop groove 551, so that the partition plate 53 is limited from moving out of the partition groove 52.

The working principle of the embodiment is as follows: the switch cabinet is formed by assembling a bottom plate 1, a back plate 2, a top plate 3, a door plate 4, two side plates 5 and a partition plate 53, people can transport the plates to a transport vehicle one by one without assembling the plates in the transportation process, and compared with the mode of transporting the whole cabinet, the switch cabinet has the advantages of low labor consumption in transportation at each time and labor saving effect. During assembly, the lower ends of the two side plates 5 are respectively inserted into the two mounting grooves 12, the lower end of the back plate 2 extends into the positioning groove 11, the left end and the right end of the back plate 2 respectively extend into the fixing grooves 58, and then the side plates 5 and the back plate 2 are connected through the fasteners 6; next, the top plate 3 is placed on the upper sides of the side plates 5 and the back plate 2 from the top down such that the extension blocks 51 are inserted into the extension holes 31, respectively, and then the mounting member is installed in the annular groove 511 to restrict the movement of the top plate 3. After the door panel 4 is hinged to one of the side panels 5 through the hinge, the partition plate 53 is pushed into the partition groove 52, then the limiting block 541 is rotated downwards, and finally the insertion rod 542 on the lower side penetrates through the insertion hole 543 and then is embedded into the stopping groove 551, so that the partition plate 53 is limited to move out of the partition groove 52.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like made within the design concept of the present invention should be included in the scope of the present invention.

Claims

1. A kind of switch cabinet, its characterized in that: the door comprises a bottom plate (1), a back plate (2), a top plate (3), a door plate (4) and two side plates (5), wherein the bottom plate (1) is provided with a positioning groove (11) and two mounting grooves (12) which are perpendicular to the positioning groove (11) and are parallel to each other, the lower ends of the two side plates (5) are respectively inserted into the two mounting grooves (12), and the lower end of the back plate (2) is inserted into the positioning groove (11); the end faces, close to each other, of the two side plates (5) are respectively provided with a fixing groove (58), two ends of the back plate (2) are respectively located in the two fixing grooves (58), the back plate (2) is connected with the side plate (5) adjacent to the back plate through at least one fastener (6), the top plate (3) is fixed to the upper sides of the back plate (2) and the side plates (5) through mounting pieces, and the door plate (4) is hinged to one side plate (5) through a hinge; the end faces, close to each other, of the two side plates (5) are provided with separating grooves (52) extending along the length direction of the side plates, a separating plate (53) is inserted between any two separating grooves (52) with the same height, and a limiting piece (54) for limiting the separating plate (53) to be separated from the side plate (5) is arranged on the side plate (5); the locating part (54) includes stopper (541) and two inserted bar (542) with curb plate (5) sliding connection, and two inserted bar (542) are located the upper and lower both sides of separating groove (52) respectively, two the terminal surface that curb plate (5) are relative all is equipped with spacing groove (55) with separating groove (52) intercommunication, the one end of stopper (541) articulates in spacing groove (55), and the other end is equipped with jack (543) that confession inserted bar (542) stretched into.

2. The switch cabinet according to claim 1, characterized in that the fastening member (6) comprises a fastening block (61) in L shape, a fastening spring set (62) connected to the fastening block (61), and a pressing block (63) fixed at the other end of the fastening spring set (62), the fastening block (61) is provided with a fastening bolt (611) in threaded connection with the side plate (5) and a pressing bolt (612) penetrating through the pressing block (63) and then in threaded connection with the back plate (2).

3. A switchgear cabinet according to claim 1, characterized in that: an extension block (51) is arranged on the upper end face of the side plate (5), an extension hole (31) for the extension block (51) to penetrate through is formed in the top plate (3), and an annular groove (511) is annularly cut on the side wall of the extension block (51); the installed part includes two installation pieces (7) of one end mutual hinged, and the other end of two installation pieces (7) passes through construction bolt (72) to be connected, forms mounting hole (71) when two installation pieces (7) are connected, the internal diameter of mounting hole (71) is less than the diameter of extension piece (51), is greater than the diameter of the cylinder that ring channel (511) diapire formed.

4. A switchgear cabinet according to claim 1, characterized in that: the side plate (5) is provided with two dovetail grooves (56) extending along the horizontal direction, the two dovetail grooves (56) are respectively positioned at the upper side and the lower side of the separation groove (52) and are provided with dovetail blocks (57) in a sliding manner, and the two inserting rods (542) are respectively and fixedly connected with the two dovetail blocks (57).

5. A switchgear cabinet according to claim 4, characterized in that: two stop grooves (551) which are in interference fit with the insert rods (542) are formed in the inner wall, far away from the dovetail block (57), of the limiting groove (55), and the two stop grooves (551) correspond to the two insert rods (542) respectively in position.

6. A switchgear cabinet according to claim 1, characterized in that: the door plate (4) is provided with a through hole (41), the inner wall of the through hole (41) is provided with a movable groove (42), a movable plate (43) used for sealing the opening of the through hole (41) is arranged in the movable groove (42) in a sliding manner, and the movable plate (43) is provided with a locking piece (44) for limiting the relative movement of the movable plate and the door plate (4).

7. A switchgear cabinet according to claim 6, characterized in that: the locking piece (44) comprises a rotating rod (441), a clamping block (442) fixed on the side wall of the rotating rod (441) and a hook block (443) arranged on the clamping block (442), a rotating groove (431) is formed in the end face, away from the movable groove (42), of the movable plate (43), and the rotating rod (441) is rotatably connected into the rotating groove (431); be equipped with on perforating hole (41) the inner wall that is close to rotation groove (431) and supply locking groove (411) that fixture block (442) shifted into, the downside inner wall of locking groove (411) is equipped with and colludes piece (443) complex collude groove (412), the terminal surface that backplate (2) were kept away from in dwang (441) is equipped with square groove (444), square groove (444) interpolation is equipped with square bar (445) of wearing out fly leaf (43).

8. A switchgear cabinet according to claim 7, characterized in that: the rotating rod (441) is sleeved with a torsion spring (446), and two ends of the torsion spring (446) are respectively abutted against the opposite inner walls of the rotating grooves (431); when the movable plate (43) closes the opening of the through hole (41) and the torsion spring (446) is in a natural state, the hook block (443) extends into the hook groove (412).