CN115021194B - Fire-proof and error-proof device for cable pit - Google Patents
Fire-proof and error-proof device for cable pit Download PDFInfo
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- CN115021194B CN115021194B CN202210767902.2A CN202210767902A CN115021194B CN 115021194 B CN115021194 B CN 115021194B CN 202210767902 A CN202210767902 A CN 202210767902A CN 115021194 B CN115021194 B CN 115021194B
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- partition plate
- fixed
- fireproof isolation
- baffle
- fireproof
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G9/00—Installations of electric cables or lines in or on the ground or water
- H02G9/02—Installations of electric cables or lines in or on the ground or water laid directly in or on the ground, river-bed or sea-bottom; Coverings therefor, e.g. tile
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C2/00—Fire prevention or containment
- A62C2/06—Physical fire-barriers
- A62C2/18—Sliding dampers
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C3/00—Fire prevention, containment or extinguishing specially adapted for particular objects or places
- A62C3/16—Fire prevention, containment or extinguishing specially adapted for particular objects or places in electrical installations, e.g. cableways
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- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Laying Of Electric Cables Or Lines Outside (AREA)
Abstract
The invention belongs to the technical field of electric power. The fire-proof and error-entry-preventing device for the cable pit is characterized by comprising a front fire-proof isolation device, a rear fire-proof isolation device, a bolt, a locking fixed block and a cross bar; the front fireproof isolation device comprises a liftable front fireproof isolation part, a fixed left front fireproof isolation part and a fixed right front fireproof isolation part; the liftable front fireproof isolation part is positioned at the rear side of the fixed left front fireproof isolation part and the fixed right front fireproof isolation part, and the liftable front fireproof isolation part is positioned at the front side of the wellhead; the rear fireproof isolation device comprises a liftable rear fireproof isolation part, a fixed left rear fireproof isolation part and a fixed right rear fireproof isolation part; the liftable rear fireproof isolation part is positioned at the front side of the fixed rear front fireproof isolation part and the fixed right rear fireproof isolation part, and is positioned at the rear side of the wellhead; the strips are located between the liftable front fire barrier and the liftable rear fire barrier. The fire-proof and anti-false-entry device has the characteristics of fire prevention, false-entry prevention, simple operation and low cost.
Description
Technical Field
The invention belongs to the technical field of electric power, and particularly relates to a fireproof and anti-misoperation device of a cable trench.
Background
The cable trench is used for laying and replacing an underground pipeline of an electric power or telecommunication cable facility, as shown in fig. 1 and 2, a plurality of support frames are arranged at intervals in the extending direction (front-back direction) in the cable trench, the support frames are used for supporting cables, and a well cover is covered on a well mouth of the cable trench. The fire-retarding capability of the cable trench is often the key for ensuring the safety performance of cable communication, and the existing cable trench has poor fire-retarding capability, which brings unsafe factors. The existing cable trench is not provided with a device for preventing personnel from entering the cable trench by mistake.
Disclosure of Invention
The invention aims to provide a fireproof and anti-false-entry device for a cable pit, which has the characteristics of fireproof and anti-false-entry.
In order to achieve the above purpose, the invention adopts the following technical scheme: the fire-proof and error-entry-preventing device for the cable pit is characterized by comprising a front fire-proof isolation device, a rear fire-proof isolation device, a bolt 12, a locking fixed block 13 and a transverse bar 14;
the front fireproof isolation device comprises a liftable front fireproof isolation part, a fixed left front fireproof isolation part 9 and a fixed right front fireproof isolation part; the liftable front fireproof isolation part is positioned at the rear side of the fixed left front fireproof isolation part and the fixed right front fireproof isolation part, and the liftable front fireproof isolation part is positioned at the front side of the wellhead 4; the liftable front fireproof isolation part comprises a right front chute 7, a left front chute 8 and a liftable front fireproof partition plate 6, wherein the left front chute 8 consists of a left front baffle 15 and a left rear baffle 16, the left front baffle 15 is positioned at the front side of the left rear baffle 16, the left front baffle 15 and the left rear baffle 16 of the left front chute 8 are positioned at the upper part of the front end of the left side of the wellhead 4 of the cable pit body 1, the left front baffle 15 and the left rear baffle 16 are respectively fixedly connected with the cable pit body 1, and a left front slideway is reserved between the left front baffle 15 and the left rear baffle 16; the upper part of the left end of the liftable front fireproof partition plate 6 is inserted into the left front slideway; the right front chute 7 consists of a right front baffle and a right rear baffle, the right front baffle is positioned at the front side of the right rear baffle, the right front baffle and the right rear baffle of the right front chute 7 are positioned at the upper part of the front end of the right side of the wellhead 4 of the cable trench body 1, the right front baffle and the right rear baffle are respectively fixedly connected with the cable trench body 1, and a right front slideway is reserved between the right front baffle and the right rear baffle; the upper part of the right end of the liftable front fireproof partition plate 6 is inserted into the right front slideway; the fixed left front fireproof isolation part is positioned at the left part in the cable trench body 1, the fixed left front fireproof isolation part is positioned at the front side of the wellhead 4, the fixed left front fireproof isolation part consists of 1-4 fixed single-layer fireproof isolation plates, a single-layer fireproof isolation plate is arranged at each cable layer at the left front part in the cable trench body 1, and adjacent single-layer fireproof isolation plates are arranged at upper and lower positions; the fixed single-layer fireproof isolation plate consists of an upper partition plate 10 and a lower partition plate 11, wherein the upper partition plate 10 is positioned above the lower partition plate 11, 1-10 arc-shaped notches 17 are arranged at the lower end of the upper partition plate 10, 1-10 arc-shaped notches are arranged at the upper end of the lower partition plate 11, the positions of the arc-shaped notches on the lower partition plate 11 correspond to the positions of the arc-shaped notches on the upper partition plate 10, the arc-shaped notches on the lower partition plate 11 and the arc-shaped notches on the upper partition plate 10 form cable through holes, the upper partition plate 10 and the lower partition plate 11 are respectively fixed on a fixed mounting plate through bolts, and the fixed mounting plate is fixed on the cable trench body 1; the fixed right front fireproof isolation part is positioned at the right part in the cable trench body 1, and is positioned at the front side of the wellhead 4, and consists of 1-4 fixed single-layer fireproof isolation plates, wherein a single-layer fireproof isolation plate is arranged at each cable layer at the right front part in the cable trench body 1, and the adjacent single-layer fireproof isolation plates are arranged at upper and lower positions; the fixed single-layer fireproof isolation plate consists of an upper partition plate and a lower partition plate, wherein the upper partition plate is positioned above the lower partition plate, the lower end of the upper partition plate is provided with 1-10 arc-shaped notches, the upper end of the lower partition plate is provided with 1-10 arc-shaped notches, the positions of the arc-shaped notches on the lower partition plate correspond to the positions of the arc-shaped notches on the upper partition plate, the arc-shaped notches on the lower partition plate and the arc-shaped notches on the upper partition plate form cable through holes, the upper partition plate and the lower partition plate are respectively fixed on a fixed mounting plate through bolts, and the fixed mounting plate is fixed on a cable trench body;
the rear fireproof isolation device comprises a liftable rear fireproof isolation part, a fixed left rear fireproof isolation part and a fixed right rear fireproof isolation part; the liftable rear fireproof isolation part is positioned at the front side of the fixed rear front fireproof isolation part and the fixed right rear fireproof isolation part, and the liftable rear fireproof isolation part is positioned at the rear side of the wellhead 4; the liftable rear fireproof isolation part comprises a right rear chute, a left rear chute and a liftable rear fireproof partition plate 18, wherein the left rear chute consists of a left front baffle and a left rear baffle, the left front baffle is positioned at the front side of the left rear baffle, the left front baffle and the left rear baffle of the left rear chute are positioned at the upper part of the rear end of the left side of the wellhead 4 of the cable trench body 1, the left front baffle and the left rear baffle are respectively fixedly connected with the cable trench body 1, and a left rear slideway is reserved between the left front baffle and the left rear baffle; the upper part of the left end of the liftable rear fireproof partition board is inserted into the left rear slideway; the right back chute consists of a right front baffle and a right back baffle, the right front baffle is positioned at the front side of the right back baffle, the right front baffle and the right back baffle of the right back chute are positioned at the upper part of the right back end of the wellhead 4 of the cable pit body 1, the right front baffle and the right back baffle are respectively fixedly connected with the cable pit body 1, and a right back slideway is reserved between the right front baffle and the right back baffle; the upper part of the right end of the liftable rear fireproof partition board is inserted into the right rear slideway; the fixed left rear fireproof isolation part is positioned at the left part in the cable trench body 1, the fixed left rear fireproof isolation part is positioned at the rear side of the wellhead 4, the fixed left rear fireproof isolation part consists of 1-4 fixed single-layer fireproof isolation plates, a single-layer fireproof isolation plate is arranged at each cable layer at the left rear part in the cable trench body 1, and adjacent single-layer fireproof isolation plates are arranged at upper and lower positions; the fixed single-layer fireproof isolation plate consists of an upper partition plate and a lower partition plate, wherein the upper partition plate is positioned above the lower partition plate, 1-10 arc-shaped notches are arranged at the lower end of the upper partition plate, 1-10 arc-shaped notches are arranged at the upper end of the lower partition plate, the positions of the arc-shaped notches on the lower partition plate correspond to the positions of the arc-shaped notches on the upper partition plate, the arc-shaped notches on the lower partition plate and the arc-shaped notch on the upper partition plate form cable through holes, the upper partition plate and the lower partition plate are respectively fixed on a fixed mounting plate through bolts, and the fixed mounting plate is fixed on the cable pit body 1; the fixed right rear fireproof isolation part is positioned at the right part in the cable trench body 1, and is positioned at the rear side of the wellhead 4, and consists of 1-4 fixed single-layer fireproof isolation plates, wherein a single-layer fireproof isolation plate is arranged at each cable layer at the right rear part in the cable trench body 1, and the adjacent single-layer fireproof isolation plates are arranged at upper and lower positions; the fixed single-layer fireproof isolation plate consists of an upper partition plate and a lower partition plate, wherein the upper partition plate is positioned above the lower partition plate, the lower end of the upper partition plate is provided with 1-10 arc-shaped notches, the upper end of the lower partition plate is provided with 1-10 arc-shaped notches, the positions of the arc-shaped notches on the lower partition plate correspond to the positions of the arc-shaped notches on the upper partition plate, the arc-shaped notches on the lower partition plate and the arc-shaped notches on the upper partition plate form cable through holes, the upper partition plate and the lower partition plate are respectively fixed on a fixed mounting plate through bolts, and the fixed mounting plate is fixed on the cable pit body 1;
a front locking fixing block 13 is fixed on the middle surface of the rear upper end of the liftable front fireproof partition plate 6, a rear locking fixing block is fixed on the middle surface of the front upper end of the liftable rear fireproof partition plate 18, and insertion holes are formed in the front locking fixing block 13 and the rear locking fixing block; the front end part and the rear end part of the cross bar 14 are respectively provided with an inserting hole, the upper end part of the front bolt 12 is provided with a cap, the lower end part of the front bolt 12 is provided with a lock hole, the upper end part of the rear bolt is provided with a cap, and the lower end part of the rear bolt is provided with a lock hole; the cross bar 14 is positioned between the liftable front fireproof partition 6 and the liftable rear fireproof partition 18, and after the lower end part of the front bolt 12 passes through the jack at the front end part of the cross bar 14 and the jack on the front locking position fixing block 13, a lock hole at the lower end part of the front bolt 12 is hung and locked; the lower end of the rear bolt passes through the jack at the rear end of the cross bar 14 and the jack on the rear locking fixing block, and then the lock hole at the lower end of the rear bolt is hung and locked.
According to the above technical solution, the liftable front fire barrier 6 is T-shaped, and the liftable rear fire barrier 18 is T-shaped.
According to the above technical scheme, the fire prevention and false entry prevention device of the cable pit further comprises a fire alarm detector 19, an intrusion alarm detector 20, a display, a controller and a storage battery, wherein the fire alarm detector 19, the intrusion alarm detector 20 and the display are respectively and electrically connected with the controller, the storage battery is connected with a power input end of the controller, the controller is provided with a signal transmitting module and a signal receiving module, the signal receiving module is in wireless communication or optical fiber connection with a background, and the fire alarm detector 19, the intrusion alarm detector 20, the display, the controller and the storage battery are installed in a wellhead of the cable pit.
The invention has the beneficial effects that: the fire-proof and anti-false-entry device has the characteristics of fire prevention, false-entry prevention, simple operation and low cost. The problem that some units can release cables at will is solved, and the current practical problem of the cable pit is solved.
Drawings
Fig. 1 is a transverse cross-sectional view of a prior art raceway.
Fig. 2 is a longitudinal (front-rear) cross-sectional view of a conventional raceway.
Fig. 3 is a transverse view of the fire-resistant, false entry-resistant assembly of the cable pit of the present invention.
Fig. 4 is a cross-sectional view taken along line A-A in fig. 3.
Fig. 5 is a schematic view of a liftable front fire barrier according to the invention.
Fig. 6 is a schematic structural view of a fixed single-layer fireproof isolation plate according to the present invention.
In the figure: 1-cable pit body, 2-support frame, 3-cable, 4-well head, 5-well cover plate, 6-liftable front fireproof partition, 7-right front chute, 8-left front chute, 9-fixed left front fireproof partition, 10-upper partition, 11-lower partition, 12-front bolt, 13-front locking fixed block, 14-horizontal bar, 15-left front baffle, 16-left rear baffle, 17-arc notch, 18-liftable rear fireproof partition, 19-fire alarm detector and 20-intrusion alarm detector.
Detailed Description
Preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
The well mouth (the place that supplies maintainer to get in and out) 4 upper end caps of cable pit body 1 have well lid board 5, and the lower left portion in the cable pit body 1, lower right portion are equipped with 1-4 cable layers from supreme respectively down, and the cable layer is shelved and is installed on support frame 2 (this embodiment adopts 3 layers, and the space between left cable layer and the right cable layer is the passageway, and the space cross section in the cable pit body 1 is "T" shape), and every cable layer comprises 1-10 cables 3 (this embodiment adopts 3 cables 3).
As shown in fig. 3-6, the fire-proof and false entry-proof device of the cable pit comprises a front fire-proof isolation device, a rear fire-proof isolation device, a bolt 12, a locking fixing block 13 and a cross bar 14;
the front fire-proof isolation device comprises a liftable front fire-proof isolation part, a fixed left front fire-proof isolation part (for convenience of description, the left side of fig. 3 is left, the right side is right, the left side of fig. 4 is front, the right side is rear) 9 and a fixed right front fire-proof isolation part; the liftable front fireproof isolation part is positioned at the rear side of the fixed left front fireproof isolation part and the fixed right front fireproof isolation part, and the liftable front fireproof isolation part is positioned at the front side of the wellhead 4; the liftable front fireproof isolation part comprises a right front chute 7, a left front chute 8 and a liftable front fireproof partition plate 6, wherein the left front chute 8 consists of a left front baffle 15 and a left rear baffle 16, the left front baffle 15 is positioned at the front side of the left rear baffle 16, the left front baffle 15 and the left rear baffle 16 of the left front chute 8 are positioned at the upper part of the front end of the left side of the wellhead 4 of the cable pit body 1, the left front baffle 15 and the left rear baffle 16 are respectively fixedly connected with the cable pit body 1, and a left front slideway (or chute) is reserved between the left front baffle 15 and the left rear baffle 16; the liftable front fireproof partition 6 is T-shaped (as shown in fig. 5, the upper part of the liftable front fireproof partition 6 is a wide part, the lower part is a narrow part, the width of the wide part is smaller than the width of the wellhead 4 by 2-80mm, the width of the narrow part is larger than the interval between the fixed left front fireproof isolation part and the fixed right front fireproof isolation part by 0-80 mm), and the upper part of the left end of the liftable front fireproof partition 6 is inserted into the left front slideway; the right front chute 7 consists of a right front baffle and a right rear baffle, the right front baffle is positioned at the front side of the right rear baffle, the right front baffle and the right rear baffle of the right front chute 7 are positioned at the upper part of the front end of the right side of the wellhead 4 of the cable trench body 1, the right front baffle and the right rear baffle are respectively fixedly connected with the cable trench body 1, and a right front slideway (or chute) is reserved between the right front baffle and the right rear baffle; the upper part of the right end of the liftable front fireproof partition plate 6 is inserted into the right front slideway; the fixed left front fireproof isolation part is positioned at the left part in the cable trench body 1, the fixed left front fireproof isolation part is positioned at the front side of the wellhead 4, the fixed left front fireproof isolation part consists of 1-4 fixed single-layer fireproof isolation plates (the fixed single-layer fireproof isolation plates correspond to the number of layers of cables in the left part in the cable trench body 1 and also correspond to the number of layers of supporting frames on the left), a single-layer fireproof isolation plate is arranged at each cable layer at the left front part in the cable trench body 1, and the adjacent single-layer fireproof isolation plates are arranged at upper and lower positions; the fixed single-layer fireproof isolation plate consists of an upper partition plate 10 and a lower partition plate 11, the upper partition plate 10 is positioned above the lower partition plate 11, 1-10 arc-shaped notches 17 are arranged at the lower end of the upper partition plate 10, 1-10 arc-shaped notches are arranged at the upper end of the lower partition plate 11, the positions of the arc-shaped notches on the lower partition plate 11 correspond to the positions of the arc-shaped notches on the upper partition plate 10, the arc-shaped notches on the lower partition plate 11 and the arc-shaped notches on the upper partition plate 10 form cable through holes (the left cable 3 passes through the cable through holes), the upper partition plate 10 and the lower partition plate 11 are respectively fixed on a fixed mounting plate through bolts (the upper partition plate 10 and the lower partition plate 11 are convenient to detach and mount), and the fixed mounting plate is fixed on the cable trench body 1; the fixed right front fireproof isolation part is positioned at the right part in the cable trench body 1, the fixed right front fireproof isolation part is positioned at the front side of the wellhead 4, the fixed right front fireproof isolation part consists of 1-4 fixed single-layer fireproof isolation plates (the fixed single-layer fireproof isolation plates correspond to the number of cable layers in the right part in the cable trench body 1 and also correspond to the number of supporting frame layers on the right), a single-layer fireproof isolation plate is arranged at each cable layer at the right front part in the cable trench body 1, and the adjacent single-layer fireproof isolation plates are arranged at the upper and lower positions; the fixed single-layer fireproof isolation plate consists of an upper partition plate 10 and a lower partition plate 11, wherein the upper partition plate 10 is positioned above the lower partition plate 11, 1-10 arc-shaped notches 17 are formed in the lower end of the upper partition plate 10, 1-10 arc-shaped notches are formed in the upper end of the lower partition plate 11, the positions of the arc-shaped notches on the lower partition plate 11 correspond to the positions of the arc-shaped notches on the upper partition plate 10, the arc-shaped notches on the lower partition plate 11 and the arc-shaped notches on the upper partition plate 10 form cable through holes (the right cable 3 passes through the cable through holes), the upper partition plate 10 and the lower partition plate 11 are respectively fixed on a fixed mounting plate through bolts (bolts are adopted, the upper partition plate 10 and the lower partition plate 11 are convenient to detach and mount), and the fixed mounting plate is fixed on the cable trench body 1;
the rear fireproof isolation device comprises a liftable rear fireproof isolation part, a fixed left rear fireproof isolation part and a fixed right rear fireproof isolation part; the liftable rear fireproof isolation part is positioned at the front side of the fixed rear front fireproof isolation part and the fixed right rear fireproof isolation part, and the liftable rear fireproof isolation part is positioned at the rear side of the wellhead 4; the liftable rear fireproof isolation part comprises a right rear chute, a left rear chute and a liftable rear fireproof partition plate 18, wherein the left rear chute consists of a left front baffle and a left rear baffle, the left front baffle is positioned at the front side of the left rear baffle, the left front baffle and the left rear baffle of the left rear chute are positioned at the upper part of the rear end of the left side of the wellhead 4 of the cable trench body 1, the left front baffle and the left rear baffle are respectively fixedly connected with the cable trench body 1, and a left rear slideway (or chute) is reserved between the left front baffle and the left rear baffle; the liftable rear fireproof partition board is T-shaped (as shown in fig. 5, the upper part of the liftable rear fireproof partition board 18 is a wide part, the lower part is a narrow part, the width of the wide part is smaller than the width of the wellhead 4 by 2-80mm, the width of the narrow part is larger than the interval between the fixed left rear fireproof isolation part and the fixed right rear fireproof isolation part by 0-80 mm), and the upper part of the left end of the liftable rear fireproof partition board is inserted into the left rear slideway; the right rear chute consists of a right front baffle and a right rear baffle, the right front baffle is positioned at the front side of the right rear baffle, the right front baffle and the right rear baffle of the right rear chute are positioned at the upper part of the right rear end of the wellhead 4 of the cable pit body 1, the right front baffle and the right rear baffle are respectively fixedly connected with the cable pit body 1, and a right rear slideway (or chute) is reserved between the right front baffle and the right rear baffle; the upper part of the right end of the liftable rear fireproof partition board is inserted into the right rear slideway; the fixed left rear fireproof isolation part is positioned at the left part in the cable pit body 1, the fixed left rear fireproof isolation part is positioned at the rear side of the wellhead 4, the fixed left rear fireproof isolation part consists of 1-4 fixed single-layer fireproof isolation plates (the fixed single-layer fireproof isolation plates correspond to the number of layers of cables in the left part in the cable pit body 1 and also correspond to the number of layers of supporting frames on the left), a single-layer fireproof isolation plate is arranged at each cable layer at the left rear part in the cable pit body 1, and the adjacent single-layer fireproof isolation plates are arranged at upper and lower positions; the fixed single-layer fireproof isolation plate consists of an upper partition plate 10 and a lower partition plate 11, the upper partition plate 10 is positioned above the lower partition plate 11, 1-10 arc-shaped notches 17 are arranged at the lower end of the upper partition plate 10, 1-10 arc-shaped notches are arranged at the upper end of the lower partition plate 11, the positions of the arc-shaped notches on the lower partition plate 11 correspond to the positions of the arc-shaped notches on the upper partition plate 10, the arc-shaped notches on the lower partition plate 11 and the arc-shaped notches on the upper partition plate 10 form cable through holes (the left cable 3 passes through the cable through holes), the upper partition plate 10 and the lower partition plate 11 are respectively fixed on a fixed mounting plate through bolts (the upper partition plate 10 and the lower partition plate 11 are convenient to detach and mount), and the fixed mounting plate is fixed on the cable trench body 1; the fixed right rear fireproof isolation part is positioned at the right part in the cable trench body 1, the fixed right rear fireproof isolation part is positioned at the rear side of the wellhead 4, the fixed right rear fireproof isolation part consists of 1-4 fixed single-layer fireproof isolation plates (the fixed single-layer fireproof isolation plates correspond to the number of layers of cables in the right part in the cable trench body 1 and also correspond to the number of layers of supporting frames on the right), a single-layer fireproof isolation plate is arranged at each cable layer at the right rear part in the cable trench body 1, and the adjacent single-layer fireproof isolation plates are arranged at upper and lower positions; the fixed single-layer fireproof isolation plate consists of an upper partition plate 10 and a lower partition plate 11, wherein the upper partition plate 10 is positioned above the lower partition plate 11, 1-10 arc-shaped notches 17 are formed in the lower end of the upper partition plate 10, 1-10 arc-shaped notches are formed in the upper end of the lower partition plate 11, the positions of the arc-shaped notches on the lower partition plate 11 correspond to the positions of the arc-shaped notches on the upper partition plate 10, the arc-shaped notches on the lower partition plate 11 and the arc-shaped notches on the upper partition plate 10 form cable through holes (the right cable 3 passes through the cable through holes), the upper partition plate 10 and the lower partition plate 11 are respectively fixed on a fixed mounting plate through bolts (bolts are adopted, the upper partition plate 10 and the lower partition plate 11 are convenient to detach and mount), and the fixed mounting plate is fixed on the cable trench body 1;
a front locking fixing block 13 is fixed on the middle surface of the rear upper end of the liftable front fireproof partition plate 6, a rear locking fixing block is fixed on the middle surface of the front upper end of the liftable rear fireproof partition plate 18, and insertion holes are formed in the front locking fixing block 13 and the rear locking fixing block; the front end and the rear end of the cross bar 14 are respectively provided with an inserting hole, the upper end of the front bolt 12 is provided with a cap (playing a role of a baffle), the lower end of the front bolt 12 is provided with a lock hole, the upper end of the rear bolt is provided with a cap (playing a role of a baffle), and the lower end of the rear bolt is provided with a lock hole; the cross bar 14 is positioned between the liftable front fireproof partition 6 and the liftable rear fireproof partition 18 (the cross bar 14 is positioned below the well cover plate, the cross bar 14 is placed on the front locking fixed block 13 and the rear locking fixed block), and the lower end part of the front bolt 12 is hung and locked through a lock hole at the lower end part of the front bolt 12 after passing through a jack at the front end part of the cross bar 14 and a jack on the front locking fixed block 13; the lower end of the rear bolt passes through the jack at the rear end of the cross bar 14 and the jack on the rear locking fixing block, and then the lock hole at the lower end of the rear bolt is hung and locked.
According to the above technical scheme, the fire prevention and false entry prevention device of the cable pit further comprises a fire alarm detector 19, an intrusion alarm detector 20, a display, a controller and a storage battery, wherein the fire alarm detector (or called as smoke detector, temperature sensor and smoke sensor are existing equipment) 19, the intrusion alarm detector (or called as intrusion detector, induction people entrance alarm and intrusion alarm sensor are existing equipment) 20 and the display is respectively and electrically connected with the controller (a microprocessor and a singlechip are existing equipment), the storage battery is connected with the power supply input end of the controller (the storage battery provides power supply and is the existing equipment), the controller is provided with a signal transmitting module and a signal receiving module, the signal receiving module is in wireless communication or optical fiber connection with a background (a computer and an information receiving workstation), and the fire alarm detector 19, the intrusion alarm detector 20, the display, the controller and the storage battery are arranged in the wellhead of the cable pit.
The method comprises the following steps: 1. the front fireproof isolation device and the rear fireproof isolation device are arranged in the wellhead of each cable pit, and the cable pit can be sectionally isolated by the front fireproof isolation device and the rear fireproof isolation device so as to control the fire condition in a certain area.
2. The provision of the cross bar 14 prevents the entry of irrelevant persons (i.e., prevents false entry); when the staff needs to enter, the lock is opened and taken down, the front bolt 12 and the rear bolt are pulled out, the transverse bar 14 is taken down, and the staff can enter the wellhead of the cable trench.
3. Lifting the liftable front fireproof partition plate 6 and the liftable rear fireproof partition plate 18 from the wellhead of the cable pit to the ground, and enabling workers to enter the wellhead of the cable pit to perform operation.
4. When the fixed left front fireproof isolation part 9, the fixed right front fireproof isolation part, the fixed left rear fireproof isolation part and the fixed right rear fireproof isolation part are required to be detached, the upper partition plate 10 and the lower partition plate 11 are convenient to detach and convenient to install due to the adoption of the bolt connection.
5. When fire or human error occurs, a signal is sent to the background (monitoring workstation personnel) to send early warning information to the equipment operation and maintenance department and the 110 duty room, and the staff arrives at the site to rapidly process work.
Claims (3)
1. The fire-proof and error-entry-proof device of the cable pit is characterized by comprising a front fire-proof isolation device, a rear fire-proof isolation device, a bolt (12), a locking fixed block (13) and a cross bar (14);
the front fireproof isolation device comprises a liftable front fireproof isolation part, a fixed left front fireproof isolation part (9) and a fixed right front fireproof isolation part; the liftable front fireproof isolation part is positioned at the rear side of the fixed left front fireproof isolation part and the fixed right front fireproof isolation part, and the liftable front fireproof isolation part is positioned at the front side of the wellhead (4); the liftable front fireproof isolation part comprises a right front chute (7), a left front chute (8) and a liftable front fireproof partition board (6), wherein the left front chute (8) consists of a left front baffle (15) and a left rear baffle (16), the left front baffle (15) is positioned at the front side of the left rear baffle (16), the left front baffle (15) and the left rear baffle (16) of the left front chute (8) are positioned at the upper part of the front end of the left side of a wellhead (4) of the cable pit body (1), the left front baffle (15) and the left rear baffle (16) are fixedly connected with the cable pit body (1) respectively, and a left front slideway is reserved between the left front baffle (15) and the left rear baffle (16); the upper part of the left end of the liftable front fireproof partition board (6) is inserted into the left front slideway; the right front sliding chute (7) consists of a right front baffle and a right rear baffle, the right front baffle is positioned at the front side of the right rear baffle, the right front baffle and the right rear baffle of the right front sliding chute (7) are positioned at the upper part of the front end of the right side of the wellhead (4) of the cable pit body (1), the right front baffle and the right rear baffle are respectively fixedly connected with the cable pit body (1), and a right front slideway is reserved between the right front baffle and the right rear baffle; the upper part of the right end of the liftable front fireproof partition board (6) is inserted into the right front slideway; the fixed left front fireproof isolation part is positioned at the left part in the cable trench body (1), the fixed left front fireproof isolation part is positioned at the front side of the wellhead (4), the fixed left front fireproof isolation part consists of 1-4 fixed single-layer fireproof isolation plates, a single-layer fireproof isolation plate is arranged at each cable layer at the left front part in the cable trench body (1), and adjacent single-layer fireproof isolation plates are arranged at upper and lower positions; the fixed single-layer fireproof isolation plate consists of an upper partition plate (10) and a lower partition plate (11), wherein the upper partition plate (10) is positioned above the lower partition plate (11), 1-10 arc-shaped notches (17) are arranged at the lower end of the upper partition plate (10), 1-10 arc-shaped notches are arranged at the upper end of the lower partition plate (11), the positions of the arc-shaped notches on the lower partition plate (11) correspond to the positions of the arc-shaped notches on the upper partition plate (10), the arc-shaped notches on the lower partition plate (11) and the arc-shaped notch on the upper partition plate (10) form cable through holes, the upper partition plate (10) and the lower partition plate (11) are fixed on a fixed mounting plate through bolts respectively, and the fixed mounting plate is fixed on a cable trench body (1); the fixed right front fireproof isolation part is positioned at the right part in the cable trench body (1), the fixed right front fireproof isolation part is positioned at the front side of the wellhead (4), the fixed right front fireproof isolation part consists of 1-4 fixed single-layer fireproof isolation plates, a single-layer fireproof isolation plate is arranged at each cable layer at the right front part in the cable trench body (1), and adjacent single-layer fireproof isolation plates are arranged at upper and lower positions; the fixed single-layer fireproof isolation plate consists of an upper partition plate and a lower partition plate, wherein the upper partition plate is positioned above the lower partition plate, the lower end of the upper partition plate is provided with 1-10 arc-shaped notches, the upper end of the lower partition plate is provided with 1-10 arc-shaped notches, the positions of the arc-shaped notches on the lower partition plate correspond to the positions of the arc-shaped notches on the upper partition plate, the arc-shaped notches on the lower partition plate and the arc-shaped notches on the upper partition plate form cable through holes, the upper partition plate and the lower partition plate are respectively fixed on a fixed mounting plate through bolts, and the fixed mounting plate is fixed on a cable trench body;
the rear fireproof isolation device comprises a liftable rear fireproof isolation part, a fixed left rear fireproof isolation part and a fixed right rear fireproof isolation part; the liftable rear fireproof isolation part is positioned at the front side of the fixed rear front fireproof isolation part and the fixed right rear fireproof isolation part, and is positioned at the rear side of the wellhead (4); the liftable rear fireproof isolation part comprises a right rear chute, a left rear chute and a liftable rear fireproof partition plate (18), wherein the left rear chute consists of a left front baffle and a left rear baffle, the left front baffle is positioned at the front side of the left rear baffle, the left front baffle and the left rear baffle of the left rear chute are positioned at the upper part of the rear end of the left side of a wellhead (4) of the cable pit body (1), the left front baffle and the left rear baffle are respectively fixedly connected with the cable pit body (1), and a left rear slideway is reserved between the left front baffle and the left rear baffle; the upper part of the left end of the liftable rear fireproof partition board is inserted into the left rear slideway; the right rear chute consists of a right front baffle and a right rear baffle, the right front baffle is positioned at the front side of the right rear baffle, the right front baffle and the right rear baffle of the right rear chute are positioned at the upper part of the right rear end of the wellhead (4) of the cable pit body (1), the right front baffle and the right rear baffle are respectively fixedly connected with the cable pit body (1), and a right rear slideway is reserved between the right front baffle and the right rear baffle; the upper part of the right end of the liftable rear fireproof partition board is inserted into the right rear slideway; the fixed left rear fireproof isolation part is positioned at the left part in the cable trench body (1), the fixed left rear fireproof isolation part is positioned at the rear side of the wellhead (4), the fixed left rear fireproof isolation part consists of 1-4 fixed single-layer fireproof isolation plates, a single-layer fireproof isolation plate is arranged at each cable layer at the left rear part in the cable trench body (1), and adjacent single-layer fireproof isolation plates are arranged at upper and lower positions; the fixed single-layer fireproof isolation plate consists of an upper partition plate and a lower partition plate, wherein the upper partition plate is positioned above the lower partition plate, 1-10 arc-shaped notches are arranged at the lower end of the upper partition plate, 1-10 arc-shaped notches are arranged at the upper end of the lower partition plate, the positions of the arc-shaped notches on the lower partition plate correspond to the positions of the arc-shaped notches on the upper partition plate, the arc-shaped notches on the lower partition plate and the arc-shaped notch on the upper partition plate form cable through holes, the upper partition plate and the lower partition plate are respectively fixed on a fixed mounting plate through bolts, and the fixed mounting plate is fixed on a cable trench body (1); the fixed right rear fireproof isolation part is positioned at the right part in the cable trench body (1), and is positioned at the rear side of the wellhead (4), and consists of 1-4 fixed single-layer fireproof isolation plates, wherein a single-layer fireproof isolation plate is arranged at each cable layer at the right rear part in the cable trench body (1), and adjacent single-layer fireproof isolation plates are arranged at upper and lower positions; the fixed single-layer fireproof isolation plate consists of an upper partition plate and a lower partition plate, wherein the upper partition plate is positioned above the lower partition plate, the lower end of the upper partition plate is provided with 1-10 arc-shaped notches, the upper end of the lower partition plate is provided with 1-10 arc-shaped notches, the positions of the arc-shaped notches on the lower partition plate correspond to the positions of the arc-shaped notches on the upper partition plate, the arc-shaped notches on the lower partition plate and the arc-shaped notches on the upper partition plate form cable through holes, the upper partition plate and the lower partition plate are respectively fixed on a fixed mounting plate through bolts, and the fixed mounting plate is fixed on a cable trench body (1);
a front locking fixing block (13) is fixed on the middle surface of the rear upper end of the liftable front fireproof partition plate (6), a rear locking fixing block is fixed on the middle surface of the front upper end of the liftable rear fireproof partition plate (18), and insertion holes are formed in the front locking fixing block (13) and the rear locking fixing block; the front end part and the rear end part of the cross bar (14) are respectively provided with an inserting hole, the upper end part of the front bolt (12) is provided with a cap, the lower end part of the front bolt (12) is provided with a lock hole, the upper end part of the rear bolt is provided with a cap, and the lower end part of the rear bolt is provided with a lock hole; the cross bar (14) is positioned between the liftable front fireproof partition plate (6) and the liftable rear fireproof partition plate (18), and after the lower end part of the front bolt (12) passes through the jack at the front end part of the cross bar (14) and the jack on the front locking fixed block (13), a lock hole at the lower end part of the front bolt (12) is hung and locked; the lower end part of the rear bolt passes through the jack at the rear end part of the cross bar (14) and the jack on the rear locking position fixing block, and then the lock hole at the lower end part of the rear bolt is hung and locked.
2. The fire and false entry preventing device for a cable trench according to claim 1, wherein: the liftable front fireproof partition plate (6) is T-shaped, and the liftable rear fireproof partition plate (18) is T-shaped.
3. The fire and false entry preventing device for a cable trench according to claim 1, wherein: the fire prevention of cable pit, mistake income device are still including fire alarm detector (19), intrusion alarm detector (20), display, controller, battery, fire alarm detector (19), intrusion alarm detector (20), display respectively with controller electric connection, the battery links to each other with the power input of controller, the controller is equipped with signal transmission module and signal receiving module, signal receiving module and backstage wireless communication or fiber connection, fire alarm detector (19), intrusion alarm detector (20), display, controller, battery are installed in the well head of cable pit.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210767902.2A CN115021194B (en) | 2022-06-30 | 2022-06-30 | Fire-proof and error-proof device for cable pit |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210767902.2A CN115021194B (en) | 2022-06-30 | 2022-06-30 | Fire-proof and error-proof device for cable pit |
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| Publication Number | Publication Date |
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| CN115021194A CN115021194A (en) | 2022-09-06 |
| CN115021194B true CN115021194B (en) | 2023-06-02 |
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| CN202210767902.2A Active CN115021194B (en) | 2022-06-30 | 2022-06-30 | Fire-proof and error-proof device for cable pit |
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| CN112103892A (en) * | 2020-09-15 | 2020-12-18 | 陈鹏鹏 | Cable pit is with fire prevention cigarette device of entering room |
| JP2021087256A (en) * | 2019-11-26 | 2021-06-03 | 古河電気工業株式会社 | Cable housing container having isolation plate |
| CN113765042A (en) * | 2021-09-13 | 2021-12-07 | 中国电建集团贵州电力设计研究院有限公司 | Special-shaped cable trench cover plate building device and method |
| CN114412012A (en) * | 2022-03-09 | 2022-04-29 | 国网湖北省电力有限公司随州供电公司 | Firewall is prevented to power cable ditch assembled |
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| CN102013654A (en) * | 2010-11-18 | 2011-04-13 | 江苏省电力公司泗洪县供电公司 | Novel firewall of cable trench of substation and construction method thereof |
| CN102537523A (en) * | 2011-12-16 | 2012-07-04 | 浙江省电力设计院 | Drawer-type fireproof clapboard and cable bracket system of cable duct or tunnel |
| CN204012608U (en) * | 2014-06-04 | 2014-12-10 | 达诺尔电气(集团)有限公司 | Cable trough fire prevention division board |
| CN206619892U (en) * | 2017-03-29 | 2017-11-07 | 国家电网公司 | One kind separation fire-proof type cable channel |
| CN208782447U (en) * | 2018-10-26 | 2019-04-23 | 广东电网有限责任公司 | Cable trench anti-theft device |
| JP2021087256A (en) * | 2019-11-26 | 2021-06-03 | 古河電気工業株式会社 | Cable housing container having isolation plate |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN115021194A (en) | 2022-09-06 |
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