CN219843349U - Switch cabinet with air-pressure release device - Google Patents

Abstract

The utility model discloses a switch cabinet with a ventilation and pressure relief device, which relates to the technical field of electric switches and comprises a cabinet body, a ventilation unit and a pressure relief unit; the cabinet body is of a box-shaped structure with an open front end; the ventilation unit comprises a ventilation opening, a first fan, a connecting plate, a first nut and a ventilation box, wherein the top end of the cabinet body is provided with a rectangular ventilation opening, the lower end of the ventilation opening is fixedly connected with the top end of the first fan, the top end of the cabinet body is detachably connected with the bottom end of the connecting plate, four corners of the connecting plate are respectively connected with the first nuts in a threaded manner, and the top end of the connecting plate is fixedly connected with the bottom end of the ventilation box; the decompression unit is installed in ventilation case left end, and this switch cabinet that lets out air pressure relief device is provided with the fan, does not need natural wind also can maintain the internal good ventilation environment of cabinet, when the pressure release, with ventilation case swing joint when the pressure release case is opened, can not drop and cause damage on every side, and simple operation of installation.

Description

Switch cabinet with air-pressure release device

Technical Field

The utility model relates to the technical field of electrical switches, in particular to a switch cabinet with a ventilation and pressure relief device.

Background

In the operation process of the switch cabinet, a primary circuit short circuit fault is caused due to various reasons, such as short circuit, insulation aging, manual misoperation and the like, high-temperature and high-pressure gas is instantaneously generated under the short circuit current of tens of thousands of amperes, if the high-temperature and high-pressure gas cannot be effectively released in a narrow cabinet body in a very short time, the switch cabinet is burst, the adjacent switch cabinets are damaged, and meanwhile, the personal safety is possibly damaged. Therefore, the switchgear must be designed with consideration for effective pressure relief.

The utility model provides a cubical switchboard with ventilation pressure relief device is authorized in the prior art to public number CN109119911A, including the cabinet body, the lower surface array of the cabinet body distributes there is the stabilizer blade, and the left surface of the cabinet body is equipped with the air intake, and the left surface of the cabinet body is equipped with dustproof filter screen, and dustproof filter screen corresponds the setting with the air intake, and the left surface of dustproof filter screen is equipped with fixed frame, and fixed frame passes through fixed double-screw bolt and cabinet body fixed connection, and the upper surface of the cabinet body is equipped with the pressure release mouth, and the inside of pressure release mouth is equipped with the installing frame, and the installing frame passes through installation double-screw bolt and cabinet body fixed connection.

The left surface of its body is equipped with the air intake, and the left surface of the cabinet body is equipped with dustproof filter screen, and ventilation effect relies on natural wind, is difficult to keep the internal air circumstance of cabinet good, and the inside of pressure release mouth is equipped with the installing frame, and the installing frame passes through installation double-screw bolt and cabinet body fixed connection, and the grid easily causes the destruction around after droing when the pressure release, and needs reinstallation afterwards, and the operation is complicated.

Disclosure of Invention

The utility model aims to overcome the existing defects, and provides the switch cabinet with the pressure relief device, which is provided with the fan, can maintain a good ventilation environment in the cabinet body without natural wind, is movably connected with the ventilation box when the pressure relief box is opened during pressure relief, cannot fall off to cause surrounding damage, is simple to install, and can effectively solve the problems in the background art.

In order to achieve the above purpose, the present utility model provides the following technical solutions: a switch cabinet with a ventilation and pressure relief device comprises a cabinet body, a ventilation unit and a pressure relief unit;

the cabinet body: the box-shaped structure with the front end open is adopted;

ventilation unit: the novel cabinet comprises a vent, a first fan, a connecting plate, a first nut and a vent box, wherein a rectangular vent is formed in the top end of the cabinet body, the lower end of the vent is fixedly connected with the top end of the first fan, the top end of the cabinet body is detachably connected with the bottom end of the connecting plate, four corners of the connecting plate are respectively connected with the first nut in a threaded manner, and the top end of the connecting plate is fixedly connected with the bottom end of the vent box;

pressure relief unit: is arranged at the left end of the ventilating box.

The cabinet body is used for bearing the main structure, and ventilation unit is ventilation at ordinary times keeps the internal air circumstance of cabinet, and when the ventilation, start fan one, fan one upwards blows out the air in the cabinet body, for improving life, accessible nut one is pull down the ventilation unit when idle washs to improve its life, and the pressure release unit is used for being quick pressure release when cabinet is internal because of reasons such as trouble become high temperature high pressure environment and avoids appearing dangerous.

Further, ventilation unit still contains pressure release case, fan two, dust guard and nut two, the right-hand member of left end swing joint pressure release case of ventilation case, the inside fan two of three vertical equidistance arrangements of right-hand member inboard fixed connection of pressure release case, the four corners of four nut two threaded connection dust guard is passed through in the left end four corners of pressure release case. When ventilation is needed, the second fan is started to blow out air in the ventilation box, the whole air environment is kept good, and meanwhile, the dust-proof plate is arranged in front of the second fan, so that dust can be prevented from entering the cabinet body to affect the whole body.

Further, the pressure release unit contains rotation axis, joint board, flexible pillar one and joint post, the left end of ventilation case rotates and connects the rotation axis, the right-hand member fixed connection rotation axis of pressure release case, two horizontal spouts have been seted up on the top of ventilation case, the one end of the inside horizontal sliding connection flexible pillar one of spout, the other end swing joint post of flexible pillar one, the top swing joint board of pressure release case, joint board and the mutual joint of joint post. The telescopic support column is internally provided with a spring, the telescopic support column is supported by the spring to extend at ordinary times, the clamping support column is supported to stand up and is clamped with the clamping plate, when the inside of the cabinet body is in a high-pressure environment, huge pressure pushes the pressure relief box to drive the clamping support column to be closed, the spring in the telescopic support column is shortened, the telescopic support column slides along the sliding chute, the clamping support column is in contact and clamping connection with the clamping plate, the pressure relief box is outwards turned out and opened, pressure is relieved, and the pressure relief box is only required to be upwards turned up during installation, and the clamping plate is turned over and is clamped with the clamping support column.

Further, still include cabinet door, hinge and universal wheel, the one end of two hinges of right surface front end upside and downside fixed connection respectively of the cabinet body, the right surface rear end upside and downside of the other end fixed connection cabinet door of two hinges, four universal wheels of bottom four corners of the cabinet body swing joint respectively. The cabinet door can avoid the inside destruction of box when closing, and the universal wheel makes things convenient for the cabinet body to remove.

Further, still include lock unit, lock unit contains rotatory handle, gear, rack and joint subassembly, the left end rotation of cabinet door connects the gear, gear fixed connection rotatory handle, gear and rack meshing are connected. When the switch is required to be opened or closed, the rotary handle is rotated, the rotary handle drives the gear to rotate, the gear drives the rack to move, and the rack drives the clamping assembly to be opened or closed.

Further, the joint subassembly contains flexible pillar two, spring bolt and bayonet socket, the upper and lower side of the left surface of cabinet door is two telescopic prop's of fixed connection one end respectively, two telescopic prop's the other end fixed connection one end of two racks, the one end of the other end fixed connection spring bolt of rack, two bayonet sockets that correspond with the spring bolt have been seted up respectively to the inside upper and lower extreme of the cabinet body, spring bolt and bayonet socket joint. When needs are opened, rotate the rotatory handle clockwise, rotatory handle drives the gear rotation, the gear drives left rack decline, right rack rises, left rack drives left telescopic prop and shortens, left spring bolt decline and bayonet socket release joint, right rack drives right telescopic prop and shortens, right spring bolt rises and bayonet socket release joint, then anticlockwise rotation rotatory handle can drive two spring bolts and the bayonet socket joint that corresponds when closing and accomplish the operation of closing.

Compared with the prior art, the utility model has the beneficial effects that: this switch cabinet with pressure relief device has following benefits:

1. when ventilation is performed, the first fan is started, the first fan blows air in the cabinet upwards into the ventilation box, and then the second fan is started to blow out air in the ventilation box, so that no requirement is required to the environment during ventilation, and the universality is higher.

2. When the inside high pressure environment that becomes of cabinet body, huge pressure promotes the pressure release case, drives the joint post and closes, and the spring in the flexible pillar one shortens, and flexible pillar one slides along the spout, joint post and joint board contact joint state, and the pressure release case outwards turns out to open, makes pressure release, can not drop and causes damage around, and the installation is simple.

3. The switch cabinet with the pressure relief device is convenient and quick to operate, simple and reliable in structure and high in universality, and can meet the use requirements of people.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic side view of the present utility model;

FIG. 3 is a schematic cross-sectional view of the present utility model;

fig. 4 is a schematic view of a partial enlarged structure at a in fig. 3 according to the present utility model.

In the figure: 1 cabinet body, 2 cabinet door, 3 ventilation unit, 31 vent, 32 fan one, 33 connecting plate, 34 nut one, 35 ventilation case, 36 pressure release case, 37 fan two, 38 dust guard, 39 nut two, 4 pressure release unit, 41 rotation axis, 42 joint board, 43 telescopic prop one, 44 joint post, 5 lock unit, 51 rotatory handle, 52 gear, 53 rack, 54 telescopic prop two, 55 spring bolt, 56 bayonet socket, 6 hinge, 7 universal wheel.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-4, the present embodiment provides a technical solution: a switch cabinet with a ventilation and pressure relief device comprises a cabinet body 1, a ventilation unit 3 and a pressure relief unit 4;

cabinet 1: the box-shaped structure with the front end open is adopted;

ventilation unit 3: the novel cabinet comprises a vent 31, a first fan 32, a connecting plate 33, a first nut 34 and a vent box 35, wherein the top end of the cabinet body 1 is provided with a rectangular vent 31, the lower end of the vent 31 is fixedly connected with the top end of the first fan 32, the top end of the cabinet body 1 is detachably connected with the bottom end of the connecting plate 33, four corners of the connecting plate 33 are respectively connected with the four first nuts 34 in a threaded manner, and the top end of the connecting plate 33 is fixedly connected with the bottom end of the vent box 35; the ventilation unit 3 further comprises a pressure relief box 36, a second fan 37, a dust-proof plate 38 and a second nut 39, the left end of the ventilation box 35 is movably connected with the right end of the pressure relief box 36, the inner side of the right end of the pressure relief box 36 is fixedly connected with the three second fans 37 which are longitudinally arranged at equal intervals, and four corners of the left end of the pressure relief box 36 are in threaded connection with four corners of the dust-proof plate 38 through the four second nuts 39.

The cabinet body 1 is used for bearing the main structure, ventilation unit 3 is ventilation at ordinary times keeps the internal air circumstance of cabinet body 1, when ventilating, start fan one 32, fan one 32 upwards blows out the air in the cabinet body 1, for improving life, accessible nut one 34 is torn down ventilation unit 3 and washs when idle, in order to improve its life, pressure release unit 4 is used for being quick pressure release when cabinet internal portion becomes high temperature high pressure environment because of trouble etc. and avoids appearing dangerous, when needs ventilation, start fan two 37 blows out the air in the ventilation box 35, keep whole air circumstance good, install dust guard 38 in front of fan two 37 simultaneously, can avoid the dust to get into cabinet body 1 and influence whole.

The pressure release unit 4 contains rotation axis 41, joint board 42, flexible pillar one 43 and joint post 44, rotation axis 41 is connected in the left end rotation of ventilation case 35, the right-hand member fixed connection rotation axis 41 of pressure release case 36, two horizontal spouts have been seted up on the top of ventilation case 35, the inside horizontal sliding connection flexible pillar one 43's of spout one end, flexible pillar one 43's the other end swing joint post 44, the top swing joint board 42 of pressure release case 36, joint board 42 and joint post 44 joint each other. The spring is arranged in the first telescopic support column 43, the first telescopic support column 43 is supported by the spring to extend, the supporting clamping column 44 is erected to be clamped with the clamping plate 42, when the inside of the cabinet body is in a high-pressure environment, huge pressure pushes the pressure relief box 36 to drive the clamping column 44 to be closed, the spring in the first telescopic support column 43 is shortened, the first telescopic support column 43 slides along the sliding groove, the clamping column 44 is in contact with the clamping plate 42, the pressure relief box 36 is outwards turned out to be opened, pressure is released, and only the pressure relief box 36 is required to be turned upwards during installation, and the clamping plate 42 is turned over to be clamped with the clamping column 44.

The door lock further comprises a door lock unit 5, the door lock unit 5 comprises a rotary handle 51, a gear 52, a rack 53 and a clamping assembly, the gear 52 is rotatably connected to the left end of the cabinet door 2, the gear 52 is fixedly connected with the rotary handle 51, and the gear 52 is in meshed connection with the rack 53. The clamping assembly comprises a second telescopic support column 54, a lock tongue 55 and a bayonet 56, wherein the upper side and the lower side of the left surface of the cabinet door 2 are fixedly connected with one ends of the second telescopic support column 54 respectively, the other ends of the second telescopic support column 54 are fixedly connected with one ends of the two racks 53, the other ends of the racks 53 are fixedly connected with one end of the lock tongue 55, the upper end and the lower end of the interior of the cabinet body 1 are respectively provided with the two bayonets 56 corresponding to the lock tongue 55, and the lock tongue 55 is clamped with the bayonet 56.

When opening or closing is needed, the rotary handle 51 is rotated, the rotary handle 51 drives the gear 52 to rotate, the gear drives the rack 53 to move, and the rack 53 drives the clamping assembly to complete opening or closing. When the opening is needed, the rotary handle 51 is rotated clockwise, the rotary handle 51 drives the gear 52 to rotate, the gear 52 drives the left rack 53 to descend, the right rack 53 to ascend, the left rack drives the left telescopic strut II 54 to shorten, the left lock tongue 55 descends to be disengaged from the bayonet 56, the right rack drives the right telescopic strut II 54 to shorten, the right lock tongue 55 ascends to be disengaged from the bayonet 56, and when the opening is closed, the rotary handle 51 is rotated anticlockwise, so that the two lock tongues 55 can be driven to be engaged with the corresponding bayonet 56 to complete the closing operation.

The utility model provides a switch cabinet with a pressure relief device, which has the following working principle:

the cabinet body 1 is used for bearing a main structure, the ventilation unit 3 is used for ventilation and keeping the air environment in the cabinet body 1 at ordinary times, when ventilation is carried out, the first fan 32 is started, the first fan 32 blows out the air in the cabinet body 1 upwards, in order to improve the service life, the first nut 34 can be used for disassembling and cleaning the ventilation unit 3 when in idle so as to improve the service life, the pressure relief unit 4 is used for quickly relieving pressure and avoiding danger when the inside of the cabinet body becomes a high-temperature high-pressure environment due to faults and the like, when ventilation is needed, the second fan 37 is started to blow out the air in the ventilation box 35, the whole air environment is kept good, meanwhile, the dust-proof plate 38 is arranged in front of the second fan 37, the influence of dust entering the cabinet body 1 on the whole body can be avoided, the first telescopic strut 43 is internally provided with a spring, the first telescopic strut 43 is supported by the spring at ordinary times to extend, the support clamping post 44 is erected to be clamped with the clamping plate 42, when the inside of the cabinet body is in a high-pressure environment, huge pressure pushes the pressure relief box 36 to drive the clamping column 44 to be closed, a spring in the first telescopic support column 43 is shortened, the first telescopic support column 43 slides along a chute, the clamping column 44 is in contact and clamping connection with the clamping plate 42, the pressure relief box 36 is outwards turned out to be opened, the pressure relief box 36 is upwards turned during installation, the clamping plate 42 is turned to be clamped with the clamping column 44, when the pressure relief box needs to be opened, the rotary handle 51 is rotated clockwise, the rotary handle 51 drives the gear 52 to rotate, the gear 52 drives the left rack 53 to descend, the right rack 53 to ascend, the left rack drives the left telescopic support column II 54 to be shortened, the left lock tongue 55 descends to be released from the clamping opening 56, the right rack drives the right telescopic support column II 54 to be shortened, the right lock tongue 55 ascend to be released from the clamping opening 56, when the lock is closed, the rotary handle 51 is rotated anticlockwise, so that the two lock bolts 55 are driven to be clamped with the corresponding bayonets 56 to finish the closing operation.

It should be noted that the input ends of the first fan 32 and the second fan 37 disclosed in the above embodiment are electrically connected to an external power source through an external switch set, and the external switch set controls the first fan 32 and the second fan 37 to operate by a method commonly used in the prior art.

The foregoing is only illustrative of the present utility model and is not to be construed as limiting the scope of the utility model, and all equivalent structures or equivalent flow modifications which may be made by the teachings of the present utility model and the accompanying drawings or which may be directly or indirectly employed in other related art are within the scope of the utility model.

Claims (6)

1. The utility model provides a band-pass pressure relief device's cubical switchboard which characterized in that: comprises a cabinet body (1), a ventilation unit (3) and a pressure relief unit (4);

cabinet body (1): the box-shaped structure with the front end open is adopted;

ventilation unit (3): the novel cabinet comprises a ventilation opening (31), a first fan (32), a connecting plate (33), first nuts (34) and a ventilation box (35), wherein the rectangular ventilation opening (31) is formed in the top end of the cabinet body (1), the lower end of the ventilation opening (31) is fixedly connected with the top end of the first fan (32), the top end of the cabinet body (1) is detachably connected with the bottom end of the connecting plate (33), four corners of the connecting plate (33) are respectively connected with four first nuts (34) in a threaded mode, and the top end of the connecting plate (33) is fixedly connected with the bottom end of the ventilation box (35);

pressure relief unit (4): is arranged at the left end of the ventilation box (35).

2. A switchgear with pressure relief device according to claim 1, characterized in that: the ventilation unit (3) further comprises a pressure relief box (36), a second fan (37), a dust-proof plate (38) and a second nut (39), the left end of the ventilation box (35) is movably connected with the right end of the pressure relief box (36), the inner side of the right end of the pressure relief box (36) is fixedly connected with the second fan (37) which is longitudinally arranged at equal intervals, and the four corners of the left end of the pressure relief box (36) are connected with the four corners of the dust-proof plate (38) through four second nuts (39) in a threaded mode.

3. A switchgear with pressure relief device according to claim 2, characterized in that: the pressure relief unit (4) comprises a rotating shaft (41), a clamping plate (42), a telescopic strut (43) and a clamping column (44), the left end of the ventilation box (35) is rotationally connected with the rotating shaft (41), the right end of the pressure relief box (36) is fixedly connected with the rotating shaft (41), two transverse sliding grooves are formed in the top end of the ventilation box (35), one end of the telescopic strut (43) is transversely and slidingly connected in the sliding grooves, the other end of the telescopic strut (43) is movably connected with the clamping column (44), the top end of the pressure relief box (36) is movably connected with the clamping plate (42), and the clamping plate (42) is mutually clamped with the clamping column (44).

4. A switchgear with pressure relief device according to claim 1, characterized in that: still include cabinet door (2), hinge (6) and universal wheel (7), the one end of two hinges (6) of right surface front end upside and downside fixed connection respectively of the cabinet body (1), the right surface rear end upside and downside of the other end fixed connection cabinet door (2) of two hinges (6), four universal wheels (7) of bottom four corners swing joint respectively of the cabinet body (1).

5. The switchgear with pressure relief device according to claim 4, wherein: still include lock unit (5), lock unit (5) contain rotatory handle (51), gear (52), rack (53) and joint subassembly, the left end rotation of cabinet door (2) is connected gear (52), gear (52) fixed connection rotatory handle (51), gear (52) and rack (53) meshing are connected.

6. The switchgear with pressure relief device according to claim 5, wherein: the clamping assembly comprises a telescopic strut II (54), a lock tongue (55) and a bayonet (56), wherein the upper side and the lower side of the left surface of the cabinet door (2) are respectively fixedly connected with one ends of the two telescopic struts II (54), the other ends of the two telescopic struts II (54) are fixedly connected with one ends of two racks (53), the other ends of the racks (53) are fixedly connected with one ends of the lock tongue (55), two bayonets (56) corresponding to the lock tongue (55) are respectively arranged at the upper end and the lower end of the inside of the cabinet body (1), and the lock tongue (55) is clamped with the bayonets (56).