CN113599744B - Cable fire extinguishing device for underground comprehensive pipe gallery - Google Patents

Cable fire extinguishing device for underground comprehensive pipe gallery Download PDF

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Publication number
CN113599744B
CN113599744B CN202110951110.6A CN202110951110A CN113599744B CN 113599744 B CN113599744 B CN 113599744B CN 202110951110 A CN202110951110 A CN 202110951110A CN 113599744 B CN113599744 B CN 113599744B
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China
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box body
power cable
cable
guide rail
pushing
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CN113599744A (en
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张磊
郑一博
朱占龙
王晗
李明亮
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Hebei GEO University
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Hebei GEO University
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    • AHUMAN NECESSITIES
    • A62LIFE-SAVING; FIRE-FIGHTING
    • A62CFIRE-FIGHTING
    • A62C3/00Fire prevention, containment or extinguishing specially adapted for particular objects or places
    • A62C3/16Fire prevention, containment or extinguishing specially adapted for particular objects or places in electrical installations, e.g. cableways

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  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)

Abstract

The invention provides a cable fire extinguishing device for an underground comprehensive pipe gallery, which belongs to the technical field of underground pipe gallery fire extinguishing equipment and comprises a box body, a pushing mechanism and a groove sealing mechanism; the box body is provided with an accommodating cavity which penetrates through two ends of the box body; an opening communicated with the accommodating cavity is further formed in one side face of the box body; the pushing mechanism is provided with a fixed end suitable for being arranged on the inner wall surface of the underground comprehensive pipe gallery and a pushing end connected with the inner wall surface of the box body; the pushing mechanism is used for pushing the box body to slide in a reciprocating manner so as to wrap or keep away from the cable; the two groove sealing mechanisms are respectively arranged at two ends of the box body; each groove sealing mechanism comprises a pair of sealing plates which can slide along the height direction of the box body, and the two sealing plates are provided with semicircular holes; the semicircular holes on the two seal plates are matched to form a through hole; through the cooperation of box, ejection mechanism and groove sealing mechanism, be convenient for put out a fire to the section of catching fire of electric power cable, reduce because the electric power cable conflagration breaks out and to the influence that other equipment of utility tunnel caused.

Description

Cable fire extinguishing device for underground comprehensive pipe gallery
Technical Field
The invention belongs to the technical field of underground pipe gallery fire extinguishing equipment, and particularly relates to a cable fire extinguishing device for an underground comprehensive pipe gallery.
Background
The urban underground comprehensive pipe gallery is a tunnel space built underground in a city, and various engineering pipelines such as electric power, communication, gas, heat supply, water supply and drainage and the like are integrated; a plurality of rows of support frames are arranged on the inner side wall of the underground comprehensive pipe gallery at intervals along the height direction, each row of support frames is a plurality of support plates arranged at intervals along the length direction, and one end of each support plate is fixed on the inner wall surface of the underground comprehensive pipe gallery; each row of support frames is used for placing power cables; the power cable can be ageing after long-time the use, can conflagration when the power cable overload condition appears, causes the influence to other equipment of utility tunnel easily.
Disclosure of Invention
The embodiment of the invention provides a cable fire extinguishing device for an underground comprehensive pipe gallery, and aims to solve the technical problem that other equipment in the underground comprehensive pipe gallery is affected due to fire of a power cable in the prior art.
In order to realize the purpose, the invention adopts the technical scheme that:
there is provided a cable fire suppression device for an underground utility tunnel, comprising:
the box body is provided with an accommodating cavity, and the accommodating cavity penetrates through two ends of the box body; an opening communicated with the accommodating cavity is further formed in one side face of the box body; the box body can enable part of the power cable to enter the accommodating cavity from the opening, and the power cable extends out of the through end of the accommodating cavity;
the pushing mechanism is provided with a fixed end suitable for being arranged on the inner wall surface of the underground comprehensive pipe gallery and a pushing end connected with the inner wall surface of the box body; the pushing mechanism is used for pushing the box body to slide in a reciprocating manner so as to wrap or keep away from the cable;
the two groove sealing mechanisms are respectively arranged at two ends of the box body; each groove sealing mechanism comprises a pair of sealing plates which can slide along the height direction of the box body, and semicircular holes are formed in the two sealing plates; the semicircular holes on the two close plates are matched to form a through hole suitable for the electric power cable to pass through;
under the pushing action of the pushing mechanism, the box body is provided with a first state that the side face of the opening is in contact with the inner wall face of the underground comprehensive pipe rack so that the accommodating cavity forms a closed space, and a second state that the side face of the opening is separated from the inner wall face of the underground comprehensive pipe rack; when the electric power cable is in the first state, the two sealing plates slide to be mutually butted and wrap the extending part of the electric power cable, so that the fire part of the electric power cable is positioned in the accommodating cavity; in the second state, the two closure plates slide away from each other.
In a possible implementation manner, the box body is further provided with a placing cavity isolated from the accommodating cavity, the placing cavity is suitable for placing the dry powder extinguishing agent, and the placing cavity is provided with a discharge hole communicated with the accommodating cavity;
the outer wall surface of the box body is provided with an air bag which is communicated with the placing cavity through a pipeline; the pipeline is connected with a control valve for controlling the on-off of the inner cavity of the pipeline;
a linkage structure is further arranged on the outer wall surface of the box body and connected with the control valve and the sealing plate;
when the two close plates are butted, the linkage structure drives the control valve to open so as to enable the air bag to be communicated with the placing cavity; when the air bag is communicated with the placing cavity, the dry powder extinguishing agent in the placing cavity is sprayed onto the power cable in the accommodating cavity under the action of air flow.
In some embodiments, the control valve has a rotating shaft, and the linkage structure comprises a rack connected with the sealing plate and a gear engaged with the rack; the rack slides along with the sealing plate synchronously, and the gear and the rotating shaft rotate coaxially.
In a possible implementation manner, the pushing mechanism comprises a first electric push rod which is horizontally arranged, and the axis of the first electric push rod is perpendicular to the axis of the power cable.
In a possible implementation manner, the groove sealing mechanism further comprises two second electric push rods which are vertically arranged, and the two second electric push rods are arranged on the outer wall surface of the box body; the pushing ends of the two second electric push rods are respectively connected with the corresponding sealing plates.
In a possible implementation manner, the box body is detachably connected with the pushing end of the pushing mechanism.
In one possible implementation, the cable fire extinguishing apparatus further includes a guide rail adapted to be provided on an inner wall surface of the underground utility tunnel, the guide rail being provided along an axial direction of the power cable; an avoidance groove suitable for the guide rail to be inserted is formed in the side face of the opening of the box body;
the fixed end of the pushing mechanism is provided with a walking structure which can slide along the guide rail; the guide rail with be equipped with limit structure between the stiff end, limit structure is suitable for the restriction the stiff end is along the perpendicular to the direction of guide rail slides.
In a possible implementation manner, the top and the bottom of the guide rail are both provided with a limiting groove, and the limiting grooves are arranged along the length direction of the guide rail; the limiting structure comprises two bulges arranged on the fixed end, and the bulges are respectively in sliding fit with the limiting grooves in the top and the bottom of the guide rail.
In a possible implementation manner, the walking structure comprises a walking wheel in sliding fit with the guide rail and a driving motor for driving the walking wheel to rotate, and the driving motor is arranged on the fixed end.
In a possible implementation manner, after the guide rail is inserted into the avoiding groove, one side of the guide rail, which is close to the inner wall surface of the underground pipe gallery, and the side surface of the opening of the box body are in the same plane.
In the embodiment of the application, when a certain section of the power cable is in a fire disaster, the pushing end of the pushing mechanism drives the box body to slide towards the inner wall surface of the underground comprehensive pipe gallery, and finally the side surface of the opening of the box body is in contact with the inner wall surface of the underground comprehensive pipe gallery to form a closed space; after the box body forms a closed space, the ignition section of the power cable is positioned in the closed space, and the power cable penetrates through two ends of the box body; two seal plates on the box body can seal two ends of the box body through sliding, so that the box body is in a sealed state, air in an ignition section of the power cable is isolated, and the fire extinguishing effect can be achieved; the through holes formed by matching the two sealing plates are in contact with the outer peripheral wall of the power cable, and the outer peripheral wall of the power cable is mostly made of rubber, so that air entering the box body can be reduced, and the fire extinguishing of the ignition section of the power cable is facilitated; because the power cable needs to be radiated when in use, if the power cable is always sealed by the box body, the radiation of the power cable is not facilitated; therefore, when the power cable is normally used, the box body is pushed away from the power cable through the pushing mechanism, and heat dissipation of the power cable in the using process is facilitated.
Compared with the prior art, the cable fire extinguishing device for the underground comprehensive pipe rack is convenient for extinguishing fire of the firing section of the power cable through the matching of the box body, the pushing mechanism and the groove sealing mechanism, and reduces the influence on other equipment of the underground comprehensive pipe rack caused by the fire of the power cable.
Drawings
Fig. 1 is a schematic view of a first state of a cabinet of a cable fire extinguishing apparatus for an underground utility tunnel according to an embodiment of the present invention;
FIG. 2 is an enlarged view of portion A of FIG. 1;
FIG. 3 is a cross-sectional view of a cabinet portion of a cable fire suppression apparatus for an underground utility tunnel according to an embodiment of the present invention;
fig. 4 is a schematic view illustrating a second state of a cabinet of a cable fire extinguishing apparatus for an underground utility tunnel according to an embodiment of the present invention.
Description of reference numerals: 1. a box body; 11. an open side; 12. an accommodating chamber; 13. a placement chamber; 14. an avoidance groove; 15. a bolt; 2. a pushing mechanism; 21. a fixed end; 22. pushing the top end; 23. a first electric push rod; 24. a protrusion; 25. a traveling wheel; 26. a drive motor; 3. a groove sealing mechanism; 31. closing plates; 311. a semicircular hole; 32. a second electric push rod; 4. a power cable; 5. a control valve; 51. a rack; 52. a gear; 6. a guide rail; 61. a limiting groove.
Detailed Description
In order to make the technical problems, technical solutions and advantageous effects of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and do not limit the invention.
Referring to fig. 1 to 4 together, a cable fire extinguishing apparatus for an underground utility tunnel according to the present invention will now be described. The cable fire extinguishing device for the underground comprehensive pipe gallery comprises a box body 1, a pushing mechanism 2 and two groove sealing mechanisms 3; the box body 1 is provided with an accommodating cavity 12, and the accommodating cavity 12 penetrates through two ends of the box body 1; an opening communicated with the accommodating cavity 12 is further formed in one side face of the box body 1; the box body 1 can enable part of the power cable 4 to enter the accommodating cavity 12 from the opening, and the power cable 4 extends out of the through end of the accommodating cavity 12; the pushing mechanism 2 is provided with a fixed end 21 suitable for being arranged on the inner wall surface of the underground comprehensive pipe gallery and a pushing end 22 connected with the inner wall surface of the box body 1; the pushing mechanism 2 is used for pushing the box body 1 to slide back and forth to wrap or keep away from the cable; the two slot sealing mechanisms 3 are respectively arranged at two ends of the box body 1; each slot sealing mechanism 3 comprises a pair of closing plates 31 which can slide along the height direction of the box body 1, and semicircular holes 311 are formed in each of the two closing plates 31; the semicircular holes 311 on the two close plates 31 are matched to form a through hole suitable for the power cable 4 to pass through; under the pushing action of the pushing mechanism 2, the box body 1 has a first state that an opening side surface 11 is in contact with the inner wall surface of the underground comprehensive pipe gallery to enable the accommodating cavity 12 to form a closed space, and a second state that the opening side surface 11 is separated from the inner wall surface of the underground comprehensive pipe gallery; in the first state, the two closing plates 31 are slid to be butted against each other, and wrap the protruding part of the power cable 4, so that the fire part of the power cable 4 is located in the accommodating cavity 12; in the second position, the closure plates 31 are slid away from each other.
In the embodiment of the application, when a fire disaster occurs at a certain section of the power cable 4, the ejection end 22 of the ejection mechanism 2 drives the box body 1 to slide towards the inner wall surface of the underground comprehensive pipe rack, and finally the opening side surface 11 of the box body 1 is in contact with the inner wall surface of the underground comprehensive pipe rack to form a closed space; after the box body 1 forms a closed space, the fire section of the power cable 4 is positioned in the closed space, and the power cable 4 penetrates through two ends of the box body 1; the two sealing plates 31 on the box body 1 can seal the two ends of the box body 1 through sliding, so that the box body 1 is in a sealed state, air at the ignition section of the power cable 4 is isolated, and the fire extinguishing effect can be achieved; the through holes formed by the two sealing plates 31 in a matched mode are in contact with the outer peripheral wall of the power cable 4, and the outer peripheral wall of the power cable 4 is mostly made of rubber, so that air entering the box body 1 can be reduced, and fire extinguishing of the fire section of the power cable 4 is facilitated; because the power cable 4 needs to be radiated when in use, if the box body 1 is used for sealing the power cable 4 all the time, the radiation of the power cable 4 is not facilitated; therefore, when the power cable 4 is used normally, the box body 1 is pushed away from the power cable 4 through the pushing mechanism 2, so that the heat dissipation of the power cable 4 in the using process is facilitated.
Compared with the prior art, the cable fire extinguishing device for the underground comprehensive pipe gallery has the advantages that the box body 1, the pushing mechanism 2 and the groove sealing mechanism 3 are matched, so that the fire section of the power cable 4 can be conveniently extinguished, and the influence on other equipment of the underground comprehensive pipe gallery due to the fire of the power cable 4 is reduced.
In some embodiments, as shown in fig. 1 to 4, the box body 1 further has a placing cavity 13 isolated from the accommodating cavity 12, the placing cavity 13 is suitable for placing the dry powder extinguishing agent, and the placing cavity 13 has a discharge hole communicated with the accommodating cavity 12; the outer wall surface of the box body 1 is provided with an air bag which is communicated with the placing cavity 13 through a pipeline; the pipeline is connected with a control valve 5 for controlling the on-off of the inner cavity of the pipeline; the outer wall surface of the box body 1 is also provided with a linkage structure, and the linkage structure is connected with the control valve 5 and the closing plate 31; when the two close plates 31 are butted, the linkage structure drives the control valve 5 to be opened so as to enable the air bag to be communicated with the placing cavity 13; when the air bag is communicated with the placing cavity 13, the dry powder extinguishing agent in the placing cavity 13 is sprayed onto the power cable 4 of the accommodating cavity 12 under the action of air flow; the control valve 5 is provided with a rotating shaft, and the linkage structure comprises a rack 51 connected with the closing plate 31 and a gear 52 meshed with the rack 51; the rack 51 slides synchronously along with the sealing plate 31, and the gear 52 rotates coaxially with the rotating shaft; the placing cavity 13 is positioned above the closed space, and after the box body 1 is matched with the inner wall surface of the underground comprehensive pipe gallery to form the closed space, the two sealing plates 31 slide relatively and close the end part of the box body 1; the rack 51 is fixed on one of the closing plates 31, and the rack 51 slides along with the closing plate 31, so that the rack 51 can drive the gear 52 to rotate; the gear 52 rotates coaxially with the rotating shaft, so that the control valve 5 is convenient to open; pressure gas in the air bag enters the placing cavity 13 through the pipeline and the control valve 5, and dry powder extinguishing agent in the placing cavity 13 enters the closed space together from the discharge hole along with the pressure gas, so that the dry powder extinguishing agent covers the position where the power cable 4 is on fire, and the power cable 4 is convenient to extinguish the fire.
It should be noted that each row of power cables 4 of the underground comprehensive pipe gallery is provided with a plurality of box bodies 1, when a fire disaster occurs in the power cables 4, the power supply of the power cables 4 is cut off, and then the fire section of the power cables 4 is sealed; the pressure gas in the air bag is inert gas or carbon dioxide gas; after the fire extinguishing is finished, the box body 1 and the air bag at the position need to be replaced.
In addition, the top of the box body 1 can also be provided with a feed inlet for supplementing the dry powder extinguishing agent, and the feed inlet is opened and closed through a valve; the dry powder extinguishing agent in the box body 1 can be replaced regularly, or the dry powder extinguishing agent is supplemented into the placing cavity 13 after the dry powder extinguishing agent is used, so that the box body 1 can be reused conveniently.
In some embodiments, as shown in fig. 1 to 4, the ejection mechanism 2 includes a horizontally disposed first electric push rod 23, an axis of the first electric push rod 23 is perpendicular to an axis of the power cable 4; the pushing end 22 of the first electric push rod 23 is provided with a threaded hole, and the box body 1 is in threaded fit with the pushing end 22 through the bolt 15, so that the box body 1 and the first electric push rod 23 can be conveniently disassembled; because the first electric push rod 23 is perpendicular to the power cable 4 and is arranged along the horizontal direction, under the pushing action of the first electric push rod 23, the box body 1 is convenient to wrap the fire point of the power cable 4 or the box body 1 is convenient to be away from the power cable 4.
In some embodiments, as shown in fig. 1 to 4, the slot sealing mechanism 3 includes two second electric push rods 32 vertically arranged, and both the two second electric push rods 32 are arranged on the outer wall surface of the box body 1; the pushing ends 22 of the two second electric push rods 32 are respectively fixedly connected with the corresponding sealing plates 31; the second electric push rod 32 is fixed on the outer wall surface of the box body 1, and under the pushing action of the second electric push rod 32, the two close plates 31 can slide towards or away from each other, so that the end part of the box body 1 can be closed conveniently, or the end part of the box body 1 can be opened conveniently.
It should be noted that, because the power cables 4 of the underground utility tunnel are arranged in a plurality of rows, the application extinguishes the fire for one row of the power cables 4; all set up this application on the electric power cable 4 of different rows, can put out a fire to the electric power cable 4 of the different rows of utility tunnel.
In some embodiments, as shown in fig. 1 to 4, the cable fire extinguishing apparatus further includes a guide rail 6 adapted to be provided on an inner wall surface of the underground utility tunnel, the guide rail 6 being provided in an axial direction of the power cable 4; an avoiding groove 14 suitable for the guide rail 6 to be inserted is arranged on the opening side surface 11 of the box body 1; the fixed end 21 of the ejection mechanism 2 is provided with a walking structure which can slide along the guide rail 6; a limiting structure which is suitable for limiting the fixed end 21 to slide along the direction vertical to the guide rail 6 is arranged between the guide rail 6 and the fixed end 21; the guide rail 6 is fixed on the inner wall surface of the underground comprehensive pipe rack, and two ends of the guide rail 6 respectively correspond to two ends of the underground comprehensive pipe rack; the box 1 is a plurality of, and a plurality of box 1 all distributes along guide rail 6, consequently when the ignition of closed cable, can make the box 1 nearest to the ignition slide to the ignition, and then can reduce the sliding distance of box 1, is convenient for improve fire extinguishing efficiency. Because the opening side surface 11 of the box body 1 is provided with the avoiding groove 14, the opening side surface 11 of the box body 1 can be in contact with the inner wall surface of the underground pipe gallery, the guide rail 6 is inserted into the avoiding groove 14, one side of the guide rail 6, which is close to the inner wall surface of the underground pipe gallery, is positioned on the same plane as the opening side surface 11 of the box body 1, the width of the guide rail 6 can be prevented from interfering with the box body 1, and therefore the box body 1 can be convenient for sealing the ignition point of the power cable 4; the pushing mechanism 2 can slide along the guide rail 6 through the traveling structure, so that the box body 1 is conveniently driven to slide to the ignition point of the power cable 4. The fixed end 21 of the ejection mechanism 2 is limited through the limiting structure, and when the ejection mechanism 2 ejects the box body 1, the situation that the ejection mechanism 2 is separated from the guide rail 6 can be avoided, so that the ejection mechanism 2 can eject the box body 1, and the ejection mechanism 2 can slide on the guide rail 6.
In some embodiments, as shown in fig. 1 to 4, the top and the bottom of the guide rail 6 are provided with a limiting groove 61, and the limiting groove 61 is arranged along the length direction of the guide rail 6; the limiting structure comprises two bulges 24 arranged on the fixed end 21, and the two bulges 24 are respectively in sliding fit with the limiting grooves 61 at the top and the bottom of the guide rail 6; the two ejection mechanisms 2 are respectively positioned on two sides in the box body 1; the two protrusions 24 on the ejector mechanism 2 can seal the connection between the stopper groove 61 and the case 1, thereby reducing the air entering the case 1 from the stopper groove 61. The two bulges 24 are respectively fixed at the top and the bottom of the fixed end 21, the fixed end 21 is in sliding limit fit with the two limit grooves 61 on the guide rail 6 through the two bulges 24, and when the ejection mechanism 2 is ejected, the limit along the axis direction of the ejection mechanism 2 can be provided, so that the separation condition of the ejection mechanism 2 and the guide rail 6 is reduced.
In some embodiments, as shown in fig. 1 to 4, the walking structure includes a walking wheel 25 slidably engaged with the guide rail 6 and a driving motor 26 for driving the walking wheel 25 to rotate, the driving motor 26 is fixedly disposed on the fixed end 21; the traveling wheels 25 are driven by the driving motor 26 to slide on the guide rails 6, so that the box body 1 can be driven to slide along the guide rails 6, the box body 1 can slide to a fire point, and the fire point can be conveniently extinguished.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.

Claims (8)

1. A cable extinguishing device for utility tunnel, its characterized in that includes:
the box body is provided with an accommodating cavity, and the accommodating cavity penetrates through two ends of the box body; an opening communicated with the accommodating cavity is further formed in one side face of the box body; the box body can enable part of the power cable to enter the accommodating cavity from the opening, and the power cable extends out of the through end of the accommodating cavity;
the pushing mechanism is provided with a fixed end suitable for being arranged on the inner wall surface of the underground comprehensive pipe gallery and a pushing end connected with the inner wall surface of the box body; the pushing mechanism is used for pushing the box body to slide in a reciprocating manner so as to wrap or keep away from the cable; and
the two groove sealing mechanisms are respectively arranged at two ends of the box body; each groove sealing mechanism comprises a pair of sealing plates which can slide along the height direction of the box body, and the two sealing plates are provided with semicircular holes; the semicircular holes on the two sealing plates are matched to form a through hole suitable for the power cable to pass through;
under the pushing action of the pushing mechanism, the box body is provided with a first state that the side face of the opening is in contact with the inner wall face of the underground comprehensive pipe gallery so that the accommodating cavity forms a closed space, and a second state that the side face of the opening is separated from the inner wall face of the underground comprehensive pipe gallery; when the electric power cable is in the first state, the two sealing plates slide to be mutually butted and wrap the extending part of the electric power cable, so that the fire part of the electric power cable is positioned in the accommodating cavity; in the second state, the two sealing plates slide away from each other;
the box body is also provided with a placing cavity isolated from the accommodating cavity, the placing cavity is suitable for placing the dry powder extinguishing agent, and the placing cavity is provided with a discharge hole communicated with the accommodating cavity;
the outer wall surface of the box body is provided with an air bag which is communicated with the placing cavity through a pipeline; the pipeline is connected with a control valve for controlling the on-off of the inner cavity of the pipeline;
a linkage structure is further arranged on the outer wall surface of the box body and connected with the control valve and the sealing plate;
when the two close plates are butted, the linkage structure drives the control valve to open so as to enable the air bag to be communicated with the placing cavity; when the air bag is communicated with the placing cavity, the dry powder extinguishing agent in the placing cavity is sprayed onto the power cable of the accommodating cavity under the action of air flow;
the control valve is provided with a rotating shaft, and the linkage structure comprises a rack connected with the sealing plate and a gear meshed with the rack; the rack slides synchronously along with the sealing plate, and the gear and the rotating shaft rotate coaxially;
the fixed end of the ejection mechanism is provided with a walking structure capable of sliding along the axis direction of the power cable.
2. The cable fire extinguishing apparatus for an underground utility tunnel according to claim 1, wherein the ejector mechanism includes a first electric push rod horizontally disposed, and an axis of the first electric push rod is perpendicular to an axis of the power cable.
3. The cable fire extinguishing apparatus for the underground utility tunnel according to claim 1, wherein the gutter mechanism further comprises two vertically disposed second electric push rods, both of which are disposed on the outer wall surface of the box body; and the pushing ends of the two second electric push rods are respectively connected with the corresponding sealing plates.
4. The cable fire suppression apparatus for an underground utility tunnel of claim 1, wherein the box is removably connected to the pushing end of the pushing mechanism.
5. The cable fire extinguishing apparatus for the utility tunnel according to any one of claims 1 to 4, wherein the cable fire extinguishing apparatus further comprises a guide rail adapted to be provided on an inner wall surface of the utility tunnel, the guide rail being provided in an axial direction of the power cable; an avoiding groove suitable for the guide rail to be inserted is formed in the side face of the opening of the box body;
the guide rail with be equipped with limit structure between the stiff end, limit structure is suitable for the restriction the stiff end is along the perpendicular to the direction of guide rail slides.
6. The cable fire extinguishing apparatus for an underground utility tunnel according to claim 5, wherein the guide rail is provided with a limiting groove at both the top and the bottom thereof, the limiting groove being provided along the length direction of the guide rail; the limiting structure comprises two bulges arranged on the fixed end, and the bulges are respectively in sliding fit with the limiting grooves in the top and the bottom of the guide rail.
7. The cable fire suppression apparatus for an underground utility tunnel according to claim 5, wherein the traveling structure includes a traveling wheel slidably engaged with the guide rail and a driving motor for driving the traveling wheel to rotate, the driving motor being provided on the fixed end.
8. The cable fire extinguishing apparatus for the underground pipe gallery according to claim 5, wherein after the guide rail is inserted into the avoiding groove, one side of the guide rail close to the inner wall surface of the underground pipe gallery is in the same plane with the side surface of the opening of the box body.
CN202110951110.6A 2021-08-18 2021-08-18 Cable fire extinguishing device for underground comprehensive pipe gallery Active CN113599744B (en)

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CN110416935A (en) * 2019-08-08 2019-11-05 俞园芳 Skyscraper cable shaft structure
CN211606255U (en) * 2020-04-30 2020-09-29 江门市江晟电机厂有限公司 Fire-proof cover for motor fire prevention
CN112057771A (en) * 2020-08-24 2020-12-11 九江职业技术学院 Intelligent communication wire and cable fire extinguishing unmanned aerial vehicle
CN213632469U (en) * 2020-10-14 2021-07-06 安徽津利电力发展有限公司 Cable pit fire prevention detection device
CN112498143A (en) * 2020-11-27 2021-03-16 安徽匠桥新能源科技有限公司 Charging pile system with active isolation module
CN213583461U (en) * 2020-12-30 2021-06-29 安徽广远电器有限公司 Transformer with automatic fire extinguishing function
CN113144468A (en) * 2021-03-18 2021-07-23 苗春雷 Energy storage rack with fire prevention and constant temperature effect

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