CN114597832A

CN114597832A - Fireproof cable bridge

Info

Publication number: CN114597832A
Application number: CN202210248648.5A
Authority: CN
Inventors: 张融; 王雪峰
Original assignee: Hefei Canheng Electric Technology Co ltd
Current assignee: Hefei Canheng Electric Technology Co ltd
Priority date: 2022-03-14
Filing date: 2022-03-14
Publication date: 2022-06-07

Abstract

The invention discloses a fireproof cable bridge, which relates to the technical field of cable racks and comprises a mounting seat and a cover plate buckled at the top of the mounting seat, wherein the middle part of the top surface of the cover plate is provided with an accommodating box communicated with the cover plate, a dry powder bag is arranged inside the accommodating box, the inner wall of the mounting seat is provided with a fireproof layer, and a stabilizing pipe is provided with a plugging mechanism; a closing mechanism is arranged in the mounting port; a locking mechanism is arranged in the transmission cavity; according to the invention, through the matching of the plugging mechanism, the closing mechanism and the ventilation seat, the ventilation effect at the bottom of the mounting seat is improved, the fireproof effect of the mounting seat is also improved, and when the mounting seat is burnt by external flame, double sealing operation can be rapidly carried out on the ventilation opening, so that the fireproof effect on a cable is enhanced, the fireproof and heat insulation effects of the mounting seat are effectively improved, and meanwhile, an alarm can be given to prompt the position of fire; the efficiency of putting out to the ignition has been improved by a wide margin, improves fire prevention warning effect and high efficiency to the cable simultaneously.

Description

Fireproof cable bridge

Technical Field

The invention relates to the technical field of cable racks, in particular to a fireproof cable bridge.

Background

The cable bridge is divided into structures of a groove type, a tray type, a ladder type, a grid type and the like, and consists of a bracket, a supporting arm, an installation accessory and the like; the inner bridge frame of the building can be independently erected, or laid on various buildings (structures) and pipe gallery brackets and installed on an outdoor bridge frame outside the building, and the fireproof cable bridge frame is one of cable bridge frames;

when the existing fireproof cable bridge is used, the common cable bridge is provided with ventilation openings so as to ventilate cables in the bridge, but when a fire disaster occurs and the like, a flame ventilation groove is easy to enter the cable bridge to burn the cables; the existing cable bridge cannot rapidly close the ventilation opening and alarm the fire point when the existing cable bridge encounters fire; meanwhile, the existing cable bridge has poor fireproof, flame-retardant and heat-insulating effects, and when a fire breaks out inside the cable bridge, the fire is not convenient to extinguish, so that the safety performance of the cable bridge in actual use is influenced; therefore, there is a need for an improved approach to the above problems.

Disclosure of Invention

The invention aims to solve the defects in the prior art and provides a fireproof cable bridge.

In order to achieve the purpose, the invention adopts the following technical scheme: a fireproof cable bridge comprises a mounting seat and a cover plate buckled at the top of the mounting seat, wherein a containing box communicated with the cover plate is arranged in the middle of the top surface of the cover plate, a dry powder bag used for extinguishing fire in the mounting seat is arranged in the containing box, a fireproof layer is arranged on the inner wall of the mounting seat, L-shaped overlapping strips are longitudinally arranged at the lower parts of the inner walls on the two sides of the mounting seat, a bearing plate is arranged between the two overlapping strips, and partition plates used for separating cables are vertically arranged on the two sides of the middle of the top surface of the bearing plate; the middle part of the bottom surface of the mounting seat is provided with a ventilation seat, two sides of the middle part of the bottom surface in the mounting seat are longitudinally provided with butt joint pipes in a penetrating manner, two sides of the top surface of the ventilation seat are provided with L-shaped ventilation openings, and the bottom ends of the butt joint pipes are inserted into the tops of the ventilation openings;

a stable pipe is vertically arranged in the middle of the inner bottom surface of the mounting seat, and a plugging mechanism for plugging the pipe is arranged on the stable pipe; an installation opening is formed in the ventilation seat between the middle parts of the two ventilation openings, and a closing mechanism for closing the ventilation openings is arranged in the installation opening; all seted up the transmission chamber in the bottom of ventilation seat both sides, be equipped with the locking mechanism who is used for shutoff mechanism lifting in the transmission chamber.

Preferably, the bottom surface of the bearing plate is provided with a rectangular groove, a movable mesh plate is horizontally arranged in the rectangular groove, the inner ends of the lap joint strips are all inserted into the rectangular groove, the top end of the stabilizing pipe movably penetrates through the movable mesh plate, the top surface of the bearing plate is uniformly provided with a plurality of through holes, the top surface of the movable mesh plate is uniformly provided with a plurality of chock blocks matched with the through holes, and the top of the chock blocks is in a trapezoidal shape; the pipe body at the upper part of the stabilizing pipe is fixedly sleeved with a bearing ring, and a return spring is movably sleeved on the stabilizing pipe between the movable screen plate and the bearing ring.

Preferably, shutoff mechanism includes that the level activity cover establishes the shutoff board on the stabilizator pipe, vertically locates the shutoff strip of shutoff board bottom surface both sides, fixed rings of locating shutoff board top surface middle part both sides, fixed hanging wheel and the vertical rolling axle of locating in the vent lower part of locating movable otter board bottom surface middle part both sides, two all incline on the inner wall of vent lower part and be equipped with the guide pulley, the rolling axle rolling has the stay cord, the equal vertical running through in both sides at shutoff board top surface middle part is equipped with to wearing the mouth, the one end of stay cord is in proper order through the guide pulley, to wearing behind mouthful and the hanging wheel and fix on rings.

Preferably, the opening closing mechanism comprises fire retardant turning plates longitudinally and rotatably arranged on two sides of the upper part of the mounting opening, a rack plate vertically and movably arranged in the stabilizing pipe and driven teeth arranged on the outer wall of the top of the fire retardant turning plate, and the teeth on the rack plate are positioned in the middle of two side surfaces of the plate body; rectangular strip openings are vertically formed in the upper portions of two sides of the stabilizing pipe, connecting plates are transversely and fixedly connected to the tops of two side faces of the rack plate, and the outer ends of the connecting plates extend out of the rectangular strip openings and are fixedly connected with the inner wall of the plugging plate; a falling port communicated with the mounting port is vertically formed in the inner bottom surface of the mounting seat at the bottom of the stabilizing pipe, and the bottom end of the rack plate extends into the mounting port from the falling port; and the rack plate is in meshing transmission with the fire-retardant turnover plate.

Preferably, the locking mechanism comprises a worm which is transversely and rotatably arranged in the transmission cavity, a trapezoidal groove which is longitudinally formed in the middle of the bottom surface of the ventilating seat and a handle which is transversely arranged in the trapezoidal groove, the handle is in a crank rod shape, and the inner end of the worm movably penetrates into the trapezoidal groove to be fixedly connected with the handle; the bottom end of the winding shaft penetrates into the transmission cavity movably and is horizontally and fixedly connected with a worm wheel, and the worm wheel is in meshing transmission with the worm.

Preferably, an alarm is arranged on one side of the inner bottom surface of the mounting seat, a lock-free key switch is arranged on the bottom surface of the mounting seat on one side below the plugging plate, and the lock-free key switch is electrically connected with the alarm.

Preferably, the lower part of the inner wall of the accommodating box is provided with a supporting frame plate for supporting the dry powder bag, and the upper part of the inner wall of the supporting frame plate is transversely provided with a plurality of supporting rubber strips.

Compared with the prior art, the invention has the beneficial effects that: according to the invention, through the matching of the plugging mechanism, the closing mechanism and the ventilation seat, the ventilation effect at the bottom of the mounting seat is improved, the fireproof effect of the mounting seat is also improved, and when the mounting seat is burnt by external flame, double sealing operation can be rapidly carried out on the ventilation opening, so that the fireproof effect on a cable is enhanced, the fireproof and heat insulation effects of the mounting seat are effectively improved, and meanwhile, an alarm can be given to prompt the position of fire; the efficiency of putting out to the ignition has been improved by a wide margin, improves fire prevention warning effect and high efficiency to the cable simultaneously.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention and do not constitute a limitation of the invention. In the drawings:

FIG. 1 is a schematic front view of the present invention;

FIG. 2 is a cross-sectional view of the cover and support plate of the present invention;

FIG. 3 is a sectional view of the mounting seat and cover plate structure of the present invention;

FIG. 4 is a cross-sectional view of a stabilization tube structure of the present invention;

fig. 5 is a structural sectional view of the fire-retardant flap block state structure of the invention.

Number in the figure: 1. a mounting seat; 2. a cover plate; 3. accommodating the box; 4. a fire barrier layer; 5. a lapping strip; 6. a support plate; 7. a ventilation seat; 8. a stabilizer tube; 9. a plugging plate; 10. a dry powder bag; 11. butt-joint pipes; 12. a winding shaft; 13. pulling a rope; 14. a hoisting wheel; 15. a return spring; 16. fire retardant turning plate; 17. a rack plate; 18. a plugging strip; 19. a movable screen plate; 20. a worm; 21. a worm gear; 22. a handle; 23. an alarm; 24. there is no key switch of lock.

Detailed Description

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 only a part of the embodiments of the present invention, and not all of the embodiments.

Example (b): referring to fig. 1-5, a fireproof cable bridge comprises a mounting seat 1 and a cover plate 2 buckled at the top of the mounting seat 1, wherein a containing box 3 communicated with the cover plate 2 is arranged in the middle of the top surface of the cover plate 2, and a dry powder bag 10 for extinguishing a fire inside the mounting seat 1 is arranged inside the containing box 3, so that when the fire inside the mounting seat 1 is prevented from being fired, the dry powder bag 10 is conveniently melted by flame, and then the dry powder inside the dry powder bag is scattered on a cable with the lifting function, and the fire is conveniently extinguished; the inner wall of the mounting seat 1 is provided with a fireproof layer 4, the lower parts of the inner walls at two sides of the mounting seat 1 are longitudinally provided with L-shaped lap strips 5, a bearing plate 6 is arranged between the two lap strips 5, and two sides of the middle part of the top surface of the bearing plate 6 are vertically provided with clapboards for separating cables; the middle part of the bottom surface of the mounting seat 1 is provided with a ventilation seat 7, two sides of the middle part of the bottom surface in the mounting seat 1 are longitudinally provided with butt joint pipes 11 in a penetrating way, two sides of the top surface of the ventilation seat 7 are provided with L-shaped ventilation openings, and the bottom ends of the butt joint pipes 11 are inserted into the tops of the ventilation openings; a stable pipe 8 is vertically arranged in the middle of the inner bottom surface of the mounting seat 1, and a plugging mechanism for plugging the butt pipe 11 is arranged on the stable pipe 8; a mounting opening is formed in the ventilation seat 7 between the middle parts of the two ventilation openings, and a closing mechanism for closing the ventilation openings is arranged in the mounting opening; the bottoms of the two sides of the ventilating seat 7 are respectively provided with a transmission cavity, and a locking mechanism for lifting the plugging mechanism is arranged in the transmission cavities; through the matching of the plugging mechanism, the closing mechanism and the ventilation seat 7, the ventilation effect of the bottom of the installation seat 1 is improved, the fireproof effect of the installation seat 1 is improved, when the installation seat 1 is ignited by external flame, double sealing operation can be rapidly carried out on a ventilation opening, the fireproof effect on a cable is further enhanced, the fireproof and heat insulation effects of the installation seat 1 are effectively improved, and meanwhile, an alarm can be given to prompt the position where a fire is on; the efficiency of putting out to the ignition has been improved by a wide margin, improves fire prevention warning effect and high efficiency to the cable simultaneously.

In the invention, a rectangular groove is formed in the bottom surface of a bearing plate 6, a movable screen plate 19 is horizontally arranged in the rectangular groove, the inner ends of lap joint strips 5 are all inserted in the rectangular groove, the top end of a stabilizing pipe 8 movably penetrates through the movable screen plate 19, a plurality of through holes are uniformly formed in the top surface of the bearing plate 6, a plurality of plug blocks matched with the through holes are uniformly arranged on the top surface of the movable screen plate 19, and the tops of the plug blocks are in a trapezoidal shape; the pipe body at the upper part of the stabilizing pipe 8 is fixedly sleeved with a bearing ring, and the stabilizing pipe 8 between the movable mesh plate 19 and the bearing ring is movably sleeved with a return spring 15, so that a through hole at the bottom of the bearing plate 6 can be conveniently plugged when a fire breaks out.

In the invention, the plugging mechanism comprises a plugging plate 9 horizontally movably sleeved on the stabilizing pipe 8, plugging strips 18 longitudinally arranged on two sides of the bottom surface of the plugging plate 9, hanging rings fixedly arranged on two sides of the middle of the top surface of the plugging plate 9, hanging wheels 14 fixedly arranged on two sides of the middle of the bottom surface of the movable mesh plate 19 and a winding shaft 12 vertically rotatably arranged in the lower parts of the ventilation openings, guide wheels are obliquely arranged on the inner walls of the lower parts of the two ventilation openings, a pull rope 13 is wound on the winding shaft 12, the pull rope 13 is made of nylon wire, opposite penetrating openings are vertically arranged on two sides of the middle of the top surface of the plugging plate 9 in a penetrating way, one end of the pull rope 13 sequentially passes through the guide wheels, the opposite penetrating openings and the hanging wheels 14 and is fixed on the hanging rings, so that the butt pipe 11 can be rapidly plugged, and flames can be prevented from entering the mounting seat 1.

In the invention, the closing mechanism comprises fire-retardant turning plates 16 longitudinally and rotatably arranged on two sides of the upper part of the mounting opening, a rack plate 17 vertically and movably arranged in the stabilizing pipe 8 and driven teeth arranged on the outer wall of the top of the fire-retardant turning plates 16, wherein the teeth on the rack plate 17 are positioned in the middle of two side surfaces of the plate body; rectangular strip openings are vertically formed in the upper portions of two sides of the stabilizing pipe 8, connecting plates are transversely and fixedly connected to the tops of two side faces of the rack plate 17, and the outer ends of the connecting plates extend out of the rectangular strip openings and are fixedly connected with the inner wall of the plugging plate 9; a falling port communicated with the mounting port is vertically formed in the inner bottom surface of the mounting seat 1 at the bottom of the stabilizing pipe 8, and the bottom end of the rack plate 17 extends into the mounting port from the falling port; the rack plate 17 and the fire-retardant turnover plate 16 are in meshed transmission, so that the ventilation opening is further plugged.

In the invention, the locking mechanism comprises a worm 20 transversely rotatably arranged in the transmission cavity, a trapezoidal groove longitudinally formed in the middle of the bottom surface of the ventilating seat 7 and a handle 22 transversely arranged in the trapezoidal groove, the handle 22 is in the shape of a crank rod, and the inner ends of the worm 20 movably penetrate into the trapezoidal groove and are fixedly connected with the handle 22; the bottom end of the winding shaft 12 is movably penetrated into the transmission cavity and horizontally and fixedly connected with a worm wheel 21, the worm wheel 21 is meshed with the worm 20 for transmission, the rotating winding shaft 12 is conveniently limited and locked, and the loosening condition of the pull rope 13 is avoided.

In the invention, an alarm 23 is arranged on one side of the inner bottom surface of the mounting seat 1, a non-lock key switch 24 is arranged on the bottom surface of the mounting seat 1 on one side below the plugging plate 9, and the non-lock key switch 24 is electrically connected with the alarm 23; the point position that appears on fire is convenient for report to the police and indicate.

In the invention, the lower part of the inner wall of the accommodating box 3 is provided with a supporting frame plate for supporting the dry powder bag 10, and the upper part of the inner wall of the supporting frame plate is transversely provided with a plurality of supporting rubber strips, so that the supporting effect on the dry powder bag 10 is improved.

The working principle is as follows: in this embodiment, the present invention further provides a method for using a fireproof cable tray, including the following steps:

firstly, splicing an end mounting seat 1, then electrically connecting an alarm 23 with external control equipment through a wire, then mounting the mounting seat 1 on a bracket which is fixed externally in advance, then horizontally placing a plurality of cables on a bearing plate 6, then buckling a cover plate 2 at the top of the mounting seat 1, and fixing the cover plate 2 through bolts;

step two, the worm 20 is driven to rotate through the rotating handle 22, the worm wheel 21 meshed with the worm 20 drives the winding shaft 12 to rotate to wind the pulling rope 13, the plugging plate 9 is driven to ascend on the stabilizing pipe 8 through winding of the pulling rope 13, meanwhile, under the action of the gravity of the plugging plate 9, the movable screen plate 19 is driven to descend through the hanging wheel 14, the movable screen plate 19 is made to exit out of the rectangular groove, the plug block is made to exit out of the through hole, so that the bottom of the bearing plate 6 can be ventilated, the return spring 15 is compressed through the descending movable screen plate 19, further, the through holes in the butt joint pipe 11 and the bearing plate 6 are opened, so that air can be blown into the lower portion of the mounting seat 1 from the through holes, and the ventilation effect in the lower portion of the mounting seat 1 is improved;

thirdly, when a fire breaks out at the bottom of one mounting seat 1, the flame can melt and break the pull rope 13 on the winding shaft 12, at the moment, the pull rope 13 is broken, the plugging plate 9 can lose lifting force, the plugging plate 9 can fall, the plugging strip 18 can be conveniently plugged in the top of the butt joint pipe 11 by the falling of the plugging plate 9, meanwhile, the rack plate 17 is driven to fall when the plugging plate 9 falls, the top of the fire-retardant turning plate 16 can be meshed and driven by the falling rack plate 17, the bottom end of the fire-retardant turning plate 16 is reversely rotated into the ventilation opening by taking the top end as a circle center, the fire-retardant turning plate 16 is in a horizontal state at the moment, the ventilation opening can be conveniently plugged, the ventilation opening at the bottom of the mounting seat 1 can be plugged, and the flame can be prevented from entering the mounting seat 1 along with wind; the effect of preventing the flame from entering the mounting base 1 is effectively enhanced, and the fireproof effect of the mounting base 1 is further improved;

step four, when the stay cord 13 is fused and disconnected, the hanging wheel 14 is convenient to lift the movable screen plate 19 back under the action of the return spring 15 after losing the pull-down force, so that the movable screen plate 19 is lifted back into the rectangular groove, and the plug block is plugged in the through hole, so that the through hole in the bearing plate 6 is plugged, the fireproof effect on the cable is further enhanced, the heat is prevented from rising above the bearing plate 6, and the heat insulation and fireproof effects of the mounting seat 1 are enhanced;

step five, when the plugging plate 9 loses lifting force and descends, the non-lock key switch 24 is conveniently pressed through the falling plugging plate 9, then the alarm 23 is started through the non-lock key switch 24 to perform alarm operation on the place where fire occurs, the worker can conveniently know the fire place of a certain mounting seat 1 in time, and the warning effect and the efficiency of cable fire prevention are improved.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.

Claims

1. The utility model provides a fire prevention type cable testing bridge, includes mount pad (1) and detains apron (2) of establishing at mount pad (1) top, its characterized in that: the middle of the top surface of the cover plate (2) is provided with an accommodating box (3) communicated with the cover plate (2), a dry powder bag (10) used for extinguishing fire inside the mounting seat (1) is arranged inside the accommodating box (3), a fireproof layer (4) is arranged on the inner wall of the mounting seat (1), L-shaped overlapping strips (5) are longitudinally arranged on the lower portions of the inner walls on the two sides of the mounting seat (1), a supporting plate (6) is arranged between the two overlapping strips (5), and partition plates used for separating cables are vertically arranged on the two sides of the middle of the top surface of the supporting plate (6); a ventilation seat (7) is arranged in the middle of the bottom surface of the installation seat (1), butt joint pipes (11) longitudinally penetrate through two sides of the middle of the bottom surface in the installation seat (1), L-shaped ventilation openings are formed in two sides of the top surface of the ventilation seat (7), and the bottom ends of the butt joint pipes (11) are inserted into the tops of the ventilation openings;

a stable pipe (8) is vertically arranged in the middle of the inner bottom surface of the mounting seat (1), and a plugging mechanism for plugging a butt joint pipe (11) is arranged on the stable pipe (8); an installation opening is formed in the ventilation seat (7) between the middle parts of the two ventilation openings, and a closing mechanism for closing the ventilation openings is arranged in the installation opening; all seted up the transmission chamber in the bottom of ventilation seat (7) both sides, be equipped with the locking mechanism who is used for shutoff mechanism lifting in the transmission chamber.

2. The fire-resistant cable tray according to claim 1, wherein: a rectangular groove is formed in the bottom surface of the bearing plate (6), a movable screen plate (19) is horizontally arranged in the rectangular groove, the inner ends of the lap strips (5) are all inserted into the rectangular groove, the top end of the stabilizing pipe (8) movably penetrates through the movable screen plate (19), a plurality of through holes are uniformly formed in the top surface of the bearing plate (6), a plurality of plug blocks matched with the through holes are uniformly arranged on the top surface of the movable screen plate (19), and the tops of the plug blocks are in a trapezoidal shape; the stable pipe body at the upper part of the stable pipe (8) is fixedly sleeved with a bearing ring, and a return spring (15) is movably sleeved on the stable pipe (8) between the movable net plate (19) and the bearing ring.

3. The fire-resistant cable tray according to claim 2, wherein: plugging plate (9) on stabilizator (8), vertically locate plugging strip (18) of plugging plate (9) bottom surface both sides, fixed rings of locating plugging plate (9) top surface middle part both sides, fixed hanging wheel (14) and the vertical rolling of locating in the vent lower part of locating movable otter board (19) bottom surface middle part both sides of locating plugging mechanism include that the level activity cover is established, two all slope on the inner wall of vent lower part is equipped with the guide pulley, rolling axle (12) rolling has stay cord (13), the equal vertical running-through in both sides at plugging plate (9) top surface middle part is equipped with to the wearing hole, the one end of stay cord (13) is in proper order through the guide pulley, behind wearing hole and hanging wheel (14) and fix on rings.

4. The fire-resistant cable tray according to claim 3, wherein: the opening closing mechanism comprises fire retardant turning plates (16) which are longitudinally and rotatably arranged on two sides of the upper part of the mounting opening, a rack plate (17) which is vertically and movably arranged in the stabilizing pipe (8) and driven teeth which are arranged on the outer wall of the top of the fire retardant turning plates (16), and the teeth on the rack plate (17) are positioned in the middle parts of two side surfaces of the plate body; rectangular strip openings are vertically formed in the upper portions of two sides of the stabilizing pipe (8), connecting plates are transversely and fixedly connected to the tops of two side faces of the rack plate (17), and the outer ends of the connecting plates extend out of the rectangular strip openings to be fixedly connected with the inner wall of the plugging plate (9); a falling opening communicated with the mounting opening is vertically formed in the inner bottom surface of the mounting seat (1) at the bottom of the stabilizing pipe (8), and the bottom end of the rack plate (17) extends into the mounting opening from the falling opening; the rack plate (17) is in meshed transmission with the fire-retardant turnover plate (16).

5. The fire-resistant cable tray according to claim 4, wherein: the locking mechanism comprises a worm (20) which is transversely and rotatably arranged in the transmission cavity, a trapezoidal groove which is longitudinally formed in the middle of the bottom surface of the ventilating seat (7), and a handle (22) which is transversely arranged in the trapezoidal groove, the handle (22) is in the shape of a crank rod, and the inner end of the worm (20) movably penetrates into the trapezoidal groove and is fixedly connected with the handle (22); the bottom of the winding shaft (12) is movably penetrated into the transmission cavity and horizontally and fixedly connected with a worm wheel (21), and the worm wheel (21) is meshed with the worm (20) for transmission.

6. The fire-resistant cable tray according to claim 3, wherein: the alarm device is characterized in that an alarm device (23) is arranged on one side of the inner bottom surface of the mounting seat (1), a non-lock key switch (24) is arranged on the bottom surface of the mounting seat (1) on one side below the plugging plate (9), and the non-lock key switch (24) is electrically connected with the alarm device (23).

7. The fire-resistant cable tray according to claim 1, wherein: the inner wall lower part of the accommodating box (3) is provided with a bearing frame plate for bearing the dry powder bag (10), and the upper part of the inner wall of the bearing frame plate is transversely provided with a plurality of bearing rubber strips.