CN113629519A

CN113629519A - Fireproof power distribution cabinet

Info

Publication number: CN113629519A
Application number: CN202111058115.2A
Authority: CN
Inventors: 孙斌
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-09-09
Filing date: 2021-09-09
Publication date: 2021-11-09

Abstract

The invention provides a fireproof power distribution cabinet, and relates to the technical field of power equipment. This fire prevention switch board includes the cabinet body, fire control subassembly and well accuse subassembly. The cabinet body includes the cabinet body and encloses the accommodation chamber that closes the formation by the cabinet body, and the accommodation chamber has a plurality of storage chamber. The fire-fighting assembly comprises a spraying mechanism and an isolation mechanism, the isolation mechanism comprises a plurality of isolation units, the isolation units are arranged between adjacent storage chambers, and the isolation units are arranged to isolate the accommodating chambers so as to seal a single storage chamber. The central control assembly comprises a sensing mechanism and a control mechanism, the control mechanism is simultaneously in signal connection with the sensing mechanism and the fire-fighting assembly so as to control the working state of the fire-fighting assembly through the control mechanism, the sensing mechanism at least comprises a plurality of groups of smoke sensors and temperature sensors, and the groups of smoke sensors and the groups of temperature sensors are respectively arranged in the storage chambers so as to respectively detect the smoke concentration and the temperature in the corresponding storage chambers.

Description

Fireproof power distribution cabinet

Technical Field

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

Background

The power distribution cabinet is divided into a power distribution cabinet, a lighting distribution cabinet and a metering cabinet, and is the final-stage equipment of the power distribution system. The power distribution cabinet is a general name of a motor control center. The power distribution cabinet is used in the occasions with dispersed loads and less loops; the motor control center is used for occasions with concentrated loads and more loops.

All electrical elements and circuits in the power distribution cabinet are in good contact and reliable in connection; the phenomena of serious heating and burning loss can not occur. The following fire protection requirements exist in the existing power distribution cabinet: 1) the box body materials of the distribution box and the switch box generally adopt steel plates or insulating plates, but wood materials are not suitable for the selection; 2) the electric box and the switch box are required to be installed rightly and firmly and are not required to be inclined or inverted. The vertical distance between the lower bottoms of the fixed distribution box and the switch box and the ground is more than or equal to 1.3m and less than or equal to 1.5 m; the vertical distance between the lower bottoms of the movable distribution electric box and the switch box and the ground is more than or equal to 0.6m and less than or equal to 1.5 m; 3) the power line enters the switch box, and the bolt connection is strictly forbidden; 4) the distance between the electric boxes is not too far; 5) the distance between the distribution electric box and the switch box is not more than 30 m. The horizontal distance between the switch box and the fixed electric equipment is not more than 3 m; 6) each electric equipment should have a switch box special for each. Each electric device in a construction site is provided with a special switch box, the regulation of 'one machine, one brake and one leakage' must be met, and the same switch electric appliance is strictly forbidden to directly control two or more electric devices (including sockets). A leakage protector is required to be arranged in the switch box, the rated leakage action current of the leakage protector is not more than 30mA, and the leakage action time is not more than 0.1 s. (ii) a 7) All distribution box doors are required to be locked, other temporary electric equipment cannot be hung or plugged in the distribution box and the switch box, and sundries are strictly forbidden to be placed in the switch box.

However, if a fire occurs in the existing power distribution cabinet, the fire is controlled and the timely fire prevention early warning is difficult to achieve. In the prior art, fire is generally put out manually, and fire control and early warning are slow and have certain dangerousness.

The inventor finds in research that at least the following disadvantages exist in the prior related art:

the fire control and early warning are slow.

Disclosure of Invention

The invention aims to provide a fireproof power distribution cabinet, which overcomes the defects of the prior art, has the functions of fire early warning and quickly controlling fire, avoids the spread of fire, controls the fire to a certain extent at the first time and improves the fireproof effect.

The embodiment of the invention is realized by the following steps:

the embodiment of the application provides a fire prevention switch board, this fire prevention switch board includes:

the cabinet body comprises a cabinet body and an accommodating chamber formed by enclosing the cabinet body, and the accommodating chamber is provided with a plurality of storage chambers;

the fire-fighting assembly comprises a spraying mechanism and an isolation mechanism, the spraying mechanism is arranged in any one storage chamber, and the spraying mechanism is used for spraying flame retardant into the storage chamber; the isolation mechanism comprises a plurality of isolation units, the isolation units are arranged between adjacent storage chambers and are used for isolating the accommodating chambers so as to seal the single storage chamber;

the isolation unit comprises a path plate, a transmission mechanism, a fixed bin door and a movable bin door, wherein the transmission mechanism is arranged for driving the movable bin door to slide along a preset direction so as to enable the isolation unit to be mutually switched between a locking state and a separating state;

the central control assembly comprises a sensing mechanism and a control mechanism, the control mechanism is simultaneously connected with the sensing mechanism and the fire-fighting assembly through signals, the control mechanism controls the working state of the fire-fighting assembly, the sensing mechanism at least comprises a plurality of groups of smoke sensors and temperature sensors, and the smoke sensors and the temperature sensors are respectively arranged in the storage chambers and respectively detect smoke concentration and temperature in the storage chambers correspondingly.

The fireproof power distribution cabinet is provided with a plurality of storage chambers, each storage chamber operates independently, and electronic equipment can be stored and operated independently. The central control component monitors the working condition environment of each storage chamber at any time, the temperature sensor and the smoke sensor can carry out early warning and fire judgment on fire conditions in real time, and if the fire conditions occur, the fire control component can be controlled through the central control component to prevent the fire conditions from spreading in time, so that the danger caused by fire catching is reduced. Wherein, isolated mechanism can separate the holding chamber and break off, forms a plurality of inclosed storage chambers for the intensity of a fire can not spread, improves fire prevention effect, and simultaneously, oxygen content can reduce more in the inclosed storage chamber, and other gases can get rid of the air and surround on the surface of burning object or distribute in more inclosed space, reduce around the combustible substance or the oxygen concentration in the protection space, produce the effect of suffocating and put out a fire. The spraying mechanism can spray flame-retardant substances into the storage cavity, so that fire conditions are controlled, fire is timely extinguished, and the fire prevention and safety performance of the fire-prevention power distribution cabinet is improved.

In some embodiments of the present invention, the path plate is a hollow plate-like structure having two path through grooves, the cross-sectional shapes of the two path through grooves are the same and are parallel to each other;

the movable bin gate is movably connected with the path through groove and can relatively slide along the extending path of the path through groove; the transmission mechanism comprises a transmission unit and a control panel, the control panel can slide relatively under the driving of the transmission unit, and the control panel is fixedly connected with the movable bin gate;

the path through groove comprises a linear part and a corner part which are integrally formed, the arc at the connecting part of the linear part and the corner part is excessive, and when the movable bin gate moves to the corner part, the isolation unit is positioned in the locking state; when the movable bin gate moves to the linear portion, the isolation unit is in the separated state.

The path plate with the two path through grooves can enable the movable bin door to slide along the path of the movable bin door so as to set the isolation unit in a locking state at any time. Meanwhile, the path through groove has certain guiding accuracy, the sealing performance can be improved, the partition effect of the isolation unit is improved, and the sealing effect is prevented from being influenced by the large gap between the fixed bin gate and the movable bin gate. The structural design of the corner can ensure that the fixed bin door and the movable bin door are mutually overlapped in a separation state, reduce the occupancy rate of the bin door to the space, save the space in the accommodating chamber, improve the space utilization rate of the accommodating chamber and facilitate the storage of more electrical equipment.

In some embodiments of the invention, the movable door comprises a door body, a connecting rod and two steering wheels,

any one of the steering wheels comprises a steering wheel body, a rotating shaft and a rolling wheel, the two steering wheels are respectively arranged in the two path through grooves, and the rolling wheel of the steering wheel is in rolling fit with the path through groove so that the steering wheel can relatively slide in the path through groove;

the rotating shaft is arranged on the steering wheel body and is rotatably connected with one end of the connecting rod, and the other end of the connecting rod is fixedly connected with the bin gate body.

The steering wheel in the movable bin gate can be matched with the path through groove in a rolling manner, and has high sensitivity, and the coefficient of dynamic friction and static friction of the steering wheel is very different, so that the steering wheel is stable in movement and is not easy to creep when moving at low speed; the positioning precision is high; the friction resistance is small, the movement is light, the abrasion is small, and the precision retentivity is good. Furthermore, when the isolation unit needs to be locked, the gap between the fixed bin door and the movable bin door is extremely small, the sealing performance of the isolation unit is good, the fire can be prevented from spreading more quickly, and the fire-proof effect is improved.

In some embodiments of the present invention, the transmission unit includes a central gear and a rack member, the rack member includes a rack and pinion and a height adjustment portion, the rack and pinion and the height adjustment rod are connected to each other, and the rack and pinion and the central gear are engaged with each other, the height adjustment portion includes a mating rod and two support rods, the two support rods are parallel to each other, and ends of the two support rods, which are away from the rack member, are connected to each other through the mating rod;

the control panel is further provided with a sleeve, the sleeve is sleeved on the supporting rod and can slide relative to the supporting rod in the extending direction.

The structural design of the sleeve and the height adjusting part enables the fixed bin gate and the movable bin gate to move longitudinally and overlap with each other, the occupancy rate of the bin gate to the space is reduced, the space in the accommodating chamber is saved, the space utilization rate of the accommodating chamber is improved, and more electrical equipment can be stored conveniently. Two bracing pieces that are parallel to each other, its structure is more stable, can guarantee the precision of control panel operation.

In some embodiments of the present invention, the path plate is provided with a guide rail, the tooth member is provided with a groove which is matched with the guide rail, the groove is a dovetail groove, the guide rail is a dovetail block matched with the dovetail groove, and the tooth member can slide along the extending direction of the guide rail.

The dovetail guide rail has the advantages that the dovetail guide rail can bear overturning moment, is a structure with the least contact surface in a closed guide rail, is convenient to adjust the gap, is high in guiding precision, avoids the phenomenon of creeping of the gear teeth, and guarantees the sealing effect in a locking state.

In some embodiments of the invention, the central control assembly further comprises an alarm, the alarm is in signal connection with the smoke sensor and the temperature sensor simultaneously,

when the temperature sensor detects that the temperature in the storage chamber reaches a first preset temperature value, and when the smoke sensor detects that the smoke concentration in the storage chamber reaches a first preset concentration value, the control mechanism controls the alarm to give an alarm.

When the temperature sensor detects that the temperature in the storage chamber reaches a first preset temperature value, and when the smoke sensor detects that the smoke concentration in the storage chamber reaches a first preset concentration value, the control mechanism controls the alarm to give an alarm. After the alarm is given, early warning can be timely carried out, external personnel are reminded, and the fire condition is judged and monitored in time.

In some embodiments of the present invention, the fire fighting module further comprises a smoke exhausting mechanism, the smoke exhausting mechanism comprises a smoke exhausting port and an exhaust fan, and a sealing plate electrically connected to the control mechanism is disposed on the smoke exhausting port;

when the alarm gives an alarm, the control mechanism controls the sealing plate to open and close so as to open the smoke exhaust port, and the control mechanism simultaneously controls the exhaust fan to work;

when the temperature sensor detects that the temperature in the storage chamber reaches a second preset temperature value, the sealing plate is closed, the fire valve in the exhaust fan is automatically closed to stop exhausting, and the control mechanism moves the isolation unit to a locking state at the same time; the first preset temperature value is smaller than the second preset temperature value.

The first preset temperature value is smaller than the second preset temperature value, so that different fireproof operations can be performed by the control mechanism according to different fire conditions, and the fireproof effect is improved.

In some embodiments of the present invention, the spraying mechanism includes a nozzle, a conduit and a gas storage tank, the conduit is simultaneously connected with the nozzle and the gas storage tank, the nozzle includes a nozzle body, a spray head and a splash plate, one end of the nozzle body is connected with the conduit, the other end of the nozzle body is connected with the spray head, the splash plate is arranged in the spray head, and a plurality of through holes are arranged in the circumferential direction of the splash plate.

In some embodiments of the invention, the gas reservoir is provided with a fire suppressing gas therein, the fire suppressing gas comprising one or more of carbon dioxide and heptafluoropropane.

The carbon dioxide fire extinguishing agent is a fire extinguishing agent with a history of more than one hundred years, is low in price and easy to obtain and prepare, and extinguishes fire mainly by virtue of a suffocation effect and a partial cooling effect. Carbon dioxide has a relatively high density, about 1.5 times that of air. At atmospheric pressure, the liquid carbon dioxide is immediately vaporized, and typically 1kg of liquid carbon dioxide can produce about 0.5 cubic meter of gas. Therefore, when fire is extinguished, the carbon dioxide gas can be exhausted to surround the surface of a burning object or be distributed in a relatively closed space, the oxygen concentration around the combustible or in a protective space is reduced, and the fire is extinguished by a suffocation effect. In addition, when the carbon dioxide is sprayed out of the storage container, the liquid is quickly vaporized into gas, and partial heat is absorbed from the periphery to play a cooling role.

In some embodiments of the present invention, the nozzle body, the spray head, and the splash plate are integrally formed, and the nozzle body, the spray head, and the splash plate are all brass.

Compared with the prior art, the embodiment of the invention has at least the following advantages or beneficial effects:

1) the fireproof power distribution cabinet is provided with a plurality of storage chambers, each storage chamber operates independently, and electronic equipment can be stored and operated independently. The central control component monitors the working condition environment of each storage chamber at any time, the temperature sensor and the smoke sensor can carry out early warning and fire judgment on fire conditions in real time, and if the fire conditions occur, the fire control component can be controlled through the central control component to prevent the fire conditions from spreading in time, so that the danger caused by fire catching is reduced.

2) The insulating mechanism can separate the holding chamber and break off to form a plurality of closed storage chambers, so that the fire can not spread, the fireproof effect is improved, meanwhile, the oxygen content in the closed storage chambers can be reduced more and more, other gases can be exhausted to surround the surface of a burning object or be distributed in a closed space, the oxygen concentration around the combustible or in the protective space is reduced, and the fire is extinguished by suffocation.

3) The spraying mechanism can spray flame-retardant substances into the storage cavity, so that fire conditions are controlled, fire is timely extinguished, and the fire prevention and safety performance of the fire-prevention power distribution cabinet is improved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a schematic structural diagram of a fire-proof power distribution cabinet according to an embodiment of the present invention;

fig. 2 is another schematic structural diagram of the fireproof power distribution cabinet according to the embodiment of the present invention;

FIG. 3 is a schematic structural diagram of an isolation unit in a locked state according to an embodiment of the present invention;

FIG. 4 is a schematic structural diagram of an isolation unit in a separated state according to an embodiment of the present invention;

FIG. 5 is a schematic diagram of a structure at a path board according to an embodiment of the present invention;

fig. 6 is a schematic diagram of a central control assembly according to an embodiment of the present invention.

Icon: 100. a fireproof power distribution cabinet; 10. a cabinet body; 101. a storage chamber; 111. a spraying mechanism; 112. an isolation mechanism; 1121. a path plate; 1122. a control panel; 1123. fixing a bin gate; 1124. A path through groove; 1125. a bin gate body; 1126. a connecting rod; 1127. a steering wheel; 12. a central control component; 121. a sensing mechanism; 122. a control mechanism; 123. an alarm; 131. a sun gear; 132. tooth condition; 1321. a mating rod; 1322. a support bar; 1323. a guide rail.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the embodiments of the present invention, it should be noted that, if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or the orientations or positional relationships that the products of the present invention are usually placed in when used, the orientations or positional relationships are only used for convenience of describing the present invention and simplifying the description, but the terms do not indicate or imply that the devices or elements indicated must have specific orientations, be constructed in specific orientations, and operate, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal", "vertical", "overhang" and the like do not require that the components be absolutely horizontal or overhang, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the embodiments of the present invention, "a plurality" represents at least 2.

In the description of the embodiments of the present invention, it should be further noted that unless otherwise explicitly stated or limited, the terms "disposed," "mounted," "connected," and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

Examples

Referring to fig. 1 to fig. 6, fig. 1 is a schematic structural diagram of a fire-proof power distribution cabinet 100 according to an embodiment of the present invention, and fig. 2 is a schematic structural diagram of another fire-proof power distribution cabinet 100 according to an embodiment of the present invention. The embodiment provides a fire protection power distribution cabinet 100, and the fire protection power distribution cabinet 100 comprises a cabinet body 10, a fire-fighting assembly and a central control assembly 12. The cabinet body 10 includes a cabinet body and an accommodating chamber defined by the cabinet body, and the accommodating chamber has a plurality of storage chambers 101. The fire-fighting assembly comprises a spraying mechanism 111 and an isolation mechanism 112, wherein the spraying mechanism 111 is arranged in any storage chamber 101, and the spraying mechanism 111 is used for spraying flame retardant into the storage chamber 101; the isolation mechanism 112 includes a plurality of isolation units, which are disposed between adjacent storage chambers 101 and configured to isolate the accommodating chambers to seal the individual storage chambers 101; the isolation unit comprises a path plate 1121, a transmission mechanism, a fixed bin gate 1123 and a movable bin gate, wherein the transmission mechanism is arranged for driving the movable bin gate to slide along a preset direction so as to enable the isolation unit to be switched between a locking state and a separating state, when the isolation unit is in the locking state, the fixed bin gate 1123 is axially matched with the movable bin gate, and when the isolation unit is in the separating state, the fixed bin gate 1123 is longitudinally overlapped with the movable bin gate. The central control assembly 12 comprises a sensing mechanism 121 and a control mechanism 122, the control mechanism 122 is simultaneously in signal connection with the sensing mechanism 121 and the fire-fighting assembly so as to control the working state of the fire-fighting assembly through the control mechanism 122, the sensing mechanism 121 at least comprises a plurality of groups of smoke sensors and temperature sensors, and the plurality of groups of smoke sensors and the plurality of groups of temperature sensors are respectively arranged in the plurality of storage chambers 101 so as to respectively detect the smoke concentration and the temperature in the corresponding storage chambers 101.

It is worth mentioning that the fire protection distribution cabinet 100 has a plurality of storage chambers 101, and each storage chamber 101 operates independently, and can store and operate electronic devices independently. The central control component 12 monitors the working condition environment of each storage chamber 101 at any time, and the temperature sensor and the smoke sensor can perform early warning and fire judgment on fire conditions in real time, and if the fire conditions occur, the central control component 12 can control the fire-fighting component to prevent the fire conditions from spreading in time, so that the danger caused by fire is reduced. The insulating mechanism 112 can separate the accommodating chamber to form a plurality of closed storage chambers 101, so that the fire can not spread, the fireproof effect is improved, meanwhile, the oxygen content in the closed storage chambers 101 is reduced more and more, other gases can be exhausted to surround the surface of a burning object or be distributed in a closed space, the oxygen concentration around the combustible or in the protective space is reduced, and the fire is extinguished due to the suffocation effect. The spraying mechanism 111 can spray flame retardant into the storage chamber 101, control fire, extinguish fire in time, and improve the fire prevention and safety performance of the fire-proof power distribution cabinet 100.

Referring to fig. 3 and 4, the path plate 1121 has a hollow plate-shaped structure having two path through slots 1124, the cross-sectional shapes of the two path through slots 1124 are the same, and the two path through slots 1124 are parallel to each other;

the movable bin gate is movably connected with the path through groove 1124 and can slide relatively along the extending path of the path through groove 1124; the transmission mechanism comprises a transmission unit and a control panel 1122, the control panel 1122 can slide relatively under the driving of the transmission unit, and the control panel 1122 is fixedly connected with the movable bin gate;

the path through groove 1124 includes a linear portion and a corner portion which are integrally formed, the connection of the linear portion and the corner portion is in arc transition, and when the movable door moves to the corner portion, the isolation unit is in a locking state; when the movable bin gate moves to the straight portion, the isolation unit is in a separated state.

It should be noted that the path plate 1121 with the two path through slots 1124 can allow the movable door to slide along its path to set the isolation unit in the locked state at any time, and the structural design has high transmission stability, thereby avoiding the problem of seal failure caused by transmission failure. Meanwhile, the path through groove 1124 has certain guiding accuracy, so that the sealing performance can be improved, the partition effect of the isolation unit is improved, and the sealing effect is prevented from being influenced by the large gap between the fixed bin gate 1123 and the movable bin gate. Due to the structural design of the corners, the fixed bin door 1123 and the movable bin door can be overlapped with each other in a separation state, the occupancy rate of the bin door to space is reduced, the space in the accommodating chamber is saved, the space utilization rate of the accommodating chamber is improved, and more electrical equipment can be stored conveniently.

In this embodiment, the movable door includes a door body 1125, a connecting rod 1126 and two turning wheels 1127,

any steering wheel 1127 comprises a steering wheel 1127 body, a rotating shaft and a rolling wheel, the two steering wheels 1127 are respectively arranged in the two path through grooves 1124, and the rolling wheel of the steering wheel 1127 is in rolling fit with the path through groove 1124, so that the steering wheel 1127 can relatively slide in the path through groove 1124;

the rotating shaft is arranged on the body of the steering wheel 1127 and is rotatably connected with one end of the connecting rod 1126, and the other end of the connecting rod 1126 is fixedly connected with the bin gate body 1125.

It can be understood that the steering wheel 1127 in the movable bin gate can be matched with the path through groove 1124 in a rolling manner, and has high sensitivity and very small difference between the dynamic friction coefficient and the static friction coefficient, so that the movable bin gate is stable in movement and is not easy to creep when moving at low speed; the positioning precision is high; the friction resistance is small, the movement is light, the abrasion is small, and the precision retentivity is good. Furthermore, when the isolation unit needs to be locked, the gap between the fixed bin door 1123 and the movable bin door is extremely small, the sealing performance of the isolation unit is good, the fire can be more quickly prevented from spreading, and the fire-proof effect is improved.

Referring to fig. 5, the transmission unit includes a central gear 131 and a rack member 132, the rack member 132 includes a rack and pinion and a height adjustment portion, the rack and pinion and the height adjustment portion are connected to each other, and the rack and pinion and the central gear 131 are engaged with each other, the height adjustment portion includes a matching rod 1321 and two support rods 1322, the two support rods 1322 are parallel to each other, and ends of the two support rods 1322 far away from the rack member 132 are connected to each other through the matching rod 1321;

the control plate 1122 is further provided with a sleeve, which is sleeved on the support rod 1322 and can slide relatively along the extending direction of the support rod 1322.

It is worth to say that the structural design of the sleeve and the height adjusting portion enables the fixed bin gate 1123 and the movable bin gate to move longitudinally and overlap with each other, so that the occupancy rate of the bin gate to the space is reduced, the space in the accommodating chamber is saved, the space utilization rate is improved, and more electrical devices can be stored conveniently. The two support rods 1322, which are parallel to each other, have more stable structures, and can ensure the accuracy of the operation of the control board 1122.

Optionally, a guide rail 1323 is disposed on the path plate 1121, a groove which is matched with the guide rail 1323 is disposed on the rack 132, the groove is a dovetail groove, the guide rail 1323 is a dovetail block matched with the dovetail groove, and the rack 132 can slide along the extending direction of the guide rail 1323.

Specifically, the dovetail guide rail 1323 has a structure capable of bearing overturning moment, the contact surface is the least in the closed guide rail 1323, the gap adjustment is convenient, the guiding precision is high, the phenomenon of creeping of the gear teeth is avoided, and the sealing effect of the locking state is ensured.

Referring to fig. 6, the central control unit 12 further includes an alarm 123, the alarm 123 is in signal connection with the smoke sensor and the temperature sensor,

when the temperature sensor detects that the temperature in the storage chamber 101 reaches a first preset temperature value, and when the smoke sensor detects that the smoke concentration in the storage chamber 101 reaches a first preset concentration value, the control mechanism 122 controls the alarm 123 to alarm.

It should be noted that when the temperature sensor detects that the temperature in the storage chamber 101 reaches the first preset temperature value, and when the smoke sensor detects that the smoke concentration in the storage chamber 101 reaches the first preset concentration value, the control mechanism 122 controls the alarm 123 to alarm. After the alarm is given, early warning can be timely carried out, external personnel are reminded, and the fire condition is judged and monitored in time.

Meanwhile, the fire-fighting assembly also comprises a smoke exhaust mechanism, the smoke exhaust mechanism comprises a smoke exhaust port and an exhaust fan, and a sealing plate electrically connected with the control mechanism 122 is arranged on the smoke exhaust port;

after the alarm 123 gives an alarm, the control mechanism 122 controls the sealing plate to open and close so as to open the smoke exhaust port, and the control mechanism 122 controls the exhaust fan to work at the same time;

when the temperature sensor detects that the temperature in the storage chamber 101 reaches a second preset temperature value, the sealing plate is closed, the fire damper in the exhaust fan is automatically closed to stop exhausting, and the control mechanism 122 simultaneously isolates the unit from moving to a locking state; the first preset temperature value is smaller than the second preset temperature value.

It can be understood that the first preset temperature value is smaller than the second preset temperature value, so that the control mechanism 122 can be ensured to perform different fire prevention operations according to different fire conditions, and the fire prevention effect is improved. The temperature sensor can be a JBF4111-Ex sensor, and the smoke sensor is a JTY-GF-JBF-VH76 sensor.

In this embodiment, spray mechanism 111 includes nozzle, pipe and gas holder, and the pipe simultaneously with nozzle and gas holder interconnect, the nozzle includes nozzle body, shower nozzle and splash the dish, the one end and the pipe interconnect of nozzle body, the other end and the shower nozzle of nozzle body are connected, are provided with the splash dish in the shower nozzle, the circumferencial direction of splash dish is provided with a plurality of perforation.

The gas storage tank is filled with fire extinguishing gas, and the fire extinguishing gas comprises one or more of carbon dioxide and heptafluoropropane.

The nozzle body, the spray head and the splash plate are integrally formed and are all made of brass materials.

In summary, the embodiment of the present invention provides a fireproof power distribution cabinet 100. The fire protection power distribution cabinet 100 comprises a cabinet body 10, a fire-fighting assembly and a central control assembly 12. The cabinet body 10 includes a cabinet body and an accommodating chamber defined by the cabinet body, and the accommodating chamber has a plurality of storage chambers 101. The fire-fighting assembly comprises a spraying mechanism 111 and an isolation mechanism 112, wherein the spraying mechanism 111 is arranged in any storage chamber 101, and the spraying mechanism 111 is used for spraying flame retardant into the storage chamber 101; the isolation mechanism 112 includes a plurality of isolation units, which are disposed between adjacent storage chambers 101 and configured to isolate the accommodating chambers to seal the individual storage chambers 101; the isolation unit comprises a path plate 1121, a transmission mechanism, a fixed bin gate 1123 and a movable bin gate, wherein the transmission mechanism is arranged for driving the movable bin gate to slide along a preset direction so as to enable the isolation unit to be switched between a locking state and a separating state, when the isolation unit is in the locking state, the fixed bin gate 1123 is axially matched with the movable bin gate, and when the isolation unit is in the separating state, the fixed bin gate 1123 is longitudinally overlapped with the movable bin gate. The central control assembly 12 comprises a sensing mechanism 121 and a control mechanism 122, the control mechanism 122 is simultaneously in signal connection with the sensing mechanism 121 and the fire-fighting assembly so as to control the working state of the fire-fighting assembly through the control mechanism 122, the sensing mechanism 121 at least comprises a plurality of groups of smoke sensors and temperature sensors, and the plurality of groups of smoke sensors and the plurality of groups of temperature sensors are respectively arranged in the plurality of storage chambers 101 so as to respectively detect the smoke concentration and the temperature in the corresponding storage chambers 101.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a fire prevention switch board which characterized in that includes:

2. The fire protection power distribution cabinet according to claim 1, wherein the path plate is a hollow plate-shaped structure having two path through grooves, and the cross sections of the two path through grooves are identical and are parallel to each other;

3. The fireproof power distribution cabinet according to claim 2, wherein the movable door comprises a door body, a connecting rod and two steering wheels,

4. The fireproof power distribution cabinet according to claim 3, wherein the transmission unit comprises a central gear and a rack member, the rack member comprises a rack and pinion and a height adjustment portion, the rack and pinion and the height adjustment rod are connected with each other, the rack and pinion and the central gear are meshed with each other, the height adjustment portion comprises a matching rod and two support rods, the two support rods are parallel to each other, and one ends of the two support rods, which are far away from the rack member, are connected with each other through the matching rod;

5. The fireproof power distribution cabinet according to claim 4, wherein a guide rail is arranged on the path plate, a groove matched with the guide rail is arranged on the tooth member, the groove is a dovetail groove, the guide rail is a dovetail block matched with the dovetail groove, and the tooth member can slide along the extending direction of the guide rail.

6. The fire protection power distribution cabinet according to claim 1, wherein the central control assembly further comprises an alarm, the alarm is in signal connection with the smoke sensor and the temperature sensor simultaneously,

7. The fireproof power distribution cabinet according to claim 6, wherein the fire protection assembly further comprises a smoke exhaust mechanism, the smoke exhaust mechanism comprises a smoke exhaust port and an exhaust fan, and a sealing plate electrically connected with the control mechanism is arranged on the smoke exhaust port;

8. The fireproof power distribution cabinet according to claim 1, wherein the spraying mechanism comprises a nozzle, a conduit and an air storage tank, the conduit is simultaneously connected with the nozzle and the air storage tank, the nozzle comprises a nozzle body, a spray head and a splash plate, one end of the nozzle body is connected with the conduit, the other end of the nozzle body is connected with the spray head, the splash plate is arranged in the spray head, and a plurality of perforations are arranged in the circumferential direction of the splash plate.

9. The fire protection switch board of claim 8, wherein the gas storage tank is filled with a fire suppressing gas comprising one or more of carbon dioxide and heptafluoropropane.

10. The flameproof power distribution cabinet of claim 8, wherein the nozzle body, the sprinkler head, and the splash plate are integrally formed, and the nozzle body, the sprinkler head, and the splash plate are all brass materials.