CN112103892A

CN112103892A - Cable pit is with fire prevention cigarette device of entering room

Info

Publication number: CN112103892A
Application number: CN202010966192.7A
Authority: CN
Inventors: 陈鹏鹏; 杨李强
Original assignee: 陈鹏鹏
Current assignee: Quanzhou Taiwanese Investment Zone Shengyi Technology Co.,Ltd.
Priority date: 2020-09-15
Filing date: 2020-09-15
Publication date: 2020-12-18
Anticipated expiration: 2040-09-15
Also published as: CN112103892B

Abstract

The invention belongs to the field of cable trenches, and particularly relates to a smoke and fire prevention indoor device for a cable trench, which comprises a wall body and a cable trench, wherein a cover plate is arranged at the upper end of the cable trench, one end of the cable trench is fixedly connected with the wall body, a storage cavity is formed in the cover plate, silver bromide powder is filled in the storage cavity, corrugated pipes are fixedly connected between the lower bottom surfaces of the two sides of the cover plate and the upper side wall of the cable trench, each corrugated pipe is communicated with the storage cavity through a guide pipe arranged in the cover plate, a communication hole communicated with the cable trench is formed in the wall body, a vertically arranged baffle is fixedly connected to the inner bottom surface of the communication hole, a vertically arranged push rod is fixedly connected to the lower side wall of the cover plate, and the lower end of. According to the invention, the exhaust fan is arranged, and the rack can drive the exhaust fan to rotate in the downward movement process of the cover plate, so that the suction effect on the smoke in the transparent cover can be generated, a small amount of smoke entering the room can be sucked out, and the smoke isolation effect is further improved.

Description

Cable pit is with fire prevention cigarette device of entering room

Technical Field

The invention belongs to the field of cable ducts, and particularly relates to a smoke and fire preventing indoor device for a cable duct.

Background

The cable trench is a trench for accommodating cables, some cable trenches have the function of drainage, some cable trenches are specially used for accommodating the cables and are generally arranged below the ground, and a plurality of cover plates which are mutually spliced together are arranged at the port parts.

Most traditional cable pit and building wall's juncture all can set up the intercommunicating pore, so that the cable penetrates indoor, however the cable in the cable pit is difficult to avoid can be because local overheat and conflagration take place at the in-process of long-term use, the cable pit upper end is sealed there is the apron, therefore the flue gas that the burning produced just will enter into indoor through the intercommunicating pore very easily, contain multiple harmful substance in the gas that the cable burning produced, can harm indoor personnel's health, some traditional cable pits often can be plugged up the intercommunicating pore and only reserve the perforation of cable conductor and prevent that the flue gas of conflagration from getting into indoor, however, the ventilation cooling effect of whole cable pit has also been influenced greatly so, light then reduce cable life, seriously then cause the conflagration.

Therefore, a smoke and fire preventing device for a cable trench is provided to solve the above problems.

Disclosure of Invention

The invention aims to provide a smoke-fire-preventing indoor device for a cable trench, which has higher automation degree and aims at solving the problem that smoke in fire easily enters a building in most of traditional cable trenches.

In order to achieve the purpose, the invention adopts the following technical scheme: a smoke and fire prevention indoor device for a cable trench comprises a wall body and the cable trench, wherein a cover plate is arranged at the upper end of the cable trench, one end of the cable trench is fixedly connected with the wall body, a storage cavity is arranged in the cover plate, silver bromide powder is filled in the storage cavity, corrugated pipes are fixedly connected between the lower bottom surfaces of the two sides of the cover plate and the upper side wall of the cable trench, each corrugated pipe is communicated with the storage cavity through a guide pipe arranged in the cover plate, the wall body is provided with a communicating hole communicated with the cable trench, the inner bottom surface of the communicating hole is fixedly connected with a vertically arranged baffle, the lower side wall of the cover plate is fixedly connected with a vertically arranged push rod, the lower end of the push rod extends into the baffle plate, a vertical cavity matched with the push rod is arranged in the baffle plate, a sealing mechanism is arranged on the baffle plate, the wall body lateral wall fixedly connected with translucent cover, the translucent cover lower extreme and the lateral wall fixed connection of cable pit upper end mouth.

In foretell cable pit is with preventing that cigarette fire enters room device, sealing mechanism is including setting up a plurality of through wires holes on the baffle, every the equal fixedly connected with annular bag of through wires hole inside wall, erect the chamber and communicate with a plurality of annular bags through many communicating pipes.

In the above-mentioned cable pit is with preventing that cigarette fire enters room device, the storage chamber upper side wall is the transparence.

In foretell cable pit is with preventing that the cigarette fire enters indoor device, the rack of the vertical setting of lateral wall fixedly connected with on the apron, the rack upper end extends to the outside setting of translucent cover and fixedly connected with warning flag, fixed mounting has the air discharge fan in the translucent cover lateral wall, the pivot of air discharge fan extend to set up in the translucent cover and with wall body fixed connection, fixed cover is equipped with the gear of being connected with rack toothing in the pivot of air discharge fan.

In foretell cable pit is with preventing that cigarette fire enters room device, be equipped with the nozzle stub that matches the setting with the air discharge fan on the translucent cover lateral wall, install the check valve in the nozzle stub.

Compared with the prior art, this cable pit is with preventing that cigarette fire enters room device's advantage lies in:

1. according to the invention, the storage cavity is arranged, and the silver bromide powder is filled in the storage cavity, and can generate decomposition reaction when being exposed to light to generate a large amount of gas and generate reverse reaction when being shielded from light, so that the automatic opening and closing of the communicating hole are realized, and sensitive reaction can be generated on the flue gas.

2. According to the invention, the transparent cover is arranged, so that light can pass through the transparent cover, when smoke is generated, the smoke can be firstly gathered in the transparent cover, and the smoke can shield the light at the upper end of the storage cavity, so that the whole cover plate can be driven to move downwards to seal the whole communicating hole.

3. According to the invention, by arranging the annular bags, when the push rod moves downwards along with the cover plate, gas in the vertical cavity can be extruded into the plurality of annular bags through the communicating pipes, and the annular bags are arranged on the inner side wall of the threading hole, so that the gas-introduced annular bags can be tightly wrapped on the cable wire, smoke can be effectively prevented from entering a room through a gap between the threading hole and the cable, and the smoke isolation effect is better.

4. According to the invention, the exhaust fan is arranged, and the rack can drive the exhaust fan to rotate in the downward movement process of the cover plate, so that the suction effect on the smoke in the transparent cover can be generated, a small amount of smoke entering the room can be sucked out, and the smoke isolation effect is further improved.

Drawings

Fig. 1 is a schematic front internal structure view of a smoke and fire preventing device for a cable trench according to an embodiment 1 of the present invention;

FIG. 2 is a schematic side view of an embodiment 1 of a smoke and fire preventing device for a cable trench according to the present invention;

FIG. 3 is a schematic front view of the smoke and fire protection device for cable ducts according to the present invention, shown in FIG. 2;

fig. 4 is a schematic side view of a smoke and fire preventing device for a cable trench according to embodiment 1 of the present invention.

In the figure, 1 wall body, 2 cable trench, 3 cover plates, 4 storage chambers, 5 corrugated pipes, 6 guide pipes, 7 communication holes, 8 baffles, 9 push rods, 10 vertical chambers, 11 transparent covers, 12 threading holes, 13 annular bags, 14 racks, 15 warning flags, 16 exhaust fans, 17 gears and 18 short pipes.

Detailed Description

The following examples are for illustrative purposes only and are not intended to limit the scope of the present invention.

Example 1

As shown in fig. 1-2, a smoke and fire prevention device for cable trench comprises a wall 1 and a cable trench 2, wherein a cover plate 3 is disposed at an upper end of the cable trench 2, and one end of the cable trench 2 is fixedly connected to the wall 1.

Open in the apron 3 and have stored chamber 4, contain the silver bromide powder in the storage chamber 4, the silver bromide powder meets light and can take place decomposition reaction, produces a large amount of gases, and the reverse reaction takes place again during the light-resistant, and what need notice is that the lateral wall is transparent on the storage chamber 4.

Equal fixedly connected with bellows 5 between the lower bottom surface of apron 3 both sides and the lateral wall on the cable pit 2, every bellows 5 all through setting up pipe 6 and the storage chamber 4 intercommunication in apron 3, set up the intercommunicating pore 7 with cable pit 2 intercommunication on the wall body 1, the baffle 8 of the vertical setting of bottom surface fixedly connected with in the intercommunicating pore 7 leaves great hole between the top surface in baffle 8 and the intercommunicating pore 7, the ventilation and heat dissipation of the cable of being convenient for.

The catch bar 9 of the vertical setting of lateral wall fixedly connected with under the apron 3, catch bar 9 lower extreme extend to 8 inside settings of baffle, are equipped with in the baffle 8 to match the perpendicular chamber 10 that sets up with catch bar 9, catch bar 9 with perpendicular 10 inside wall sealing sliding connection in chamber.

Be equipped with sealing mechanism on baffle 8, it is concrete, sealing mechanism is including setting up a plurality of through wires holes 12 on the baffle, and the equal fixedly connected with annular bag 13 of 12 inside walls in every through wires hole erects chamber 10 and communicates through many communicating pipes and a plurality of annular bags 13, can prevent through sealing mechanism that the flue gas from getting into indoorly through the gap between through wires hole 12 and the cable.

1 lateral wall fixedly connected with translucent cover 11 of wall body, the lateral wall fixed connection of port on 11 lower extremes of translucent cover and the cable pit 2, translucent cover 11 can allow light to pass, and when the flue gas produced, the flue gas can be at first gathered in translucent cover 11, and the flue gas can shelter from the light of storing chamber 4 upper end to can drive whole apron 3 downstream messenger whole intercommunicating pore 7 and seal.

The invention can be illustrated by the following operating modes:

when the invention is used, sunlight can irradiate the storage cavity 4 under normal conditions to enable the silver bromide powder to generate decomposition reaction, a large amount of gas is generated, and at the moment, the corrugated pipe 5 can support the whole cover plate 3 upwards for a certain distance under the action of air pressure.

Thereby when having the flue gas to produce when the conflagration emergence, the flue gas can be at first gathered and keep off the light of storage chamber 4 upper end in translucent cover 11, can take place the adverse reaction in the storage chamber 4 this moment, and gas wherein can reduce rapidly, and whole apron 3 can move down, seals the great gap between baffle 8 and the interior top surface of intercommunicating pore 7.

At catch bar 9 along with the in-process of apron 3 downstream, can will erect in the gaseous a plurality of annular bags 13 of extruding through communicating pipe in the chamber 10, annular bag 13 sets up on the inside wall of through wires hole 12, therefore lets in gaseous annular bag 3 and can tightly wrap up on the cable conductor, can prevent effectively that the flue gas from getting into indoorly through the gap between through wires hole 12 and the cable, separates the cigarette effect better.

Example 2

As shown in fig. 3 to 4, the present embodiment is different from embodiment 1 in that: the side wall fixedly connected with rack 14 of vertical setting on apron 3, the rack 14 upper end extends to the outside setting of translucent cover 11 and fixedly connected with warning flag 15, plays the warning effect.

An exhaust fan 16 is fixedly installed in the side wall of the transparent cover 11, a rotating shaft of the exhaust fan 16 extends into the transparent cover 11 and is arranged in the transparent cover and fixedly connected with the wall body 1, and a gear 17 meshed with the rack 14 is fixedly sleeved on the rotating shaft of the exhaust fan 16.

It should be noted that the outer side wall of the transparent cover 11 is provided with a short tube 18 matched with the exhaust fan 16, and a one-way valve is installed in the short tube 18 and can prevent outside air from entering the transparent cover 11 to cause delayed backflow.

In this embodiment, in the process that the cover plate 3 moves downwards, the rack 14 drives the exhaust fan 16 to rotate through the gear 17, so that the suction effect on the smoke in the transparent cover 11 can be generated, a small amount of smoke entering the room can be sucked out, and the smoke isolating effect is further improved.

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, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims

1. The utility model provides a cable pit is with preventing that fire from smoking enters room device, includes wall body (1) and cable pit (2), cable pit (2) upper end is equipped with apron (3), cable pit (2) one end and wall body (1) fixed connection, its characterized in that, seted up storage chamber (4) in apron (3), contain silver bromide powder in storage chamber (4), equal fixedly connected with bellows (5) between the lower bottom surface of apron (3) both sides and the lateral wall on cable pit (2), every bellows (5) all communicate with storage chamber (4) through pipe (6) that set up in apron (3), intercommunicating pore (7) with cable pit (2) intercommunication is seted up on wall body (1), bottom surface fixedly connected with baffle (8) of vertical setting in intercommunicating pore (7), side wall fixedly connected with vertical setting promotes pole (9) under apron (3), the utility model discloses a cable trench, including catch bar (9), baffle (8), be equipped with in baffle (8) perpendicular chamber (10) that set up with catch bar (9) matching, be equipped with sealing mechanism on baffle (8), wall body (1) lateral wall fixedly connected with translucent cover (11), the lateral wall fixed connection of port is gone up with cable pit (2) to translucent cover (11) lower extreme.

2. The cable trench smoke and fire prevention chamber entering device according to claim 1, wherein the sealing mechanism comprises a plurality of threading holes (12) formed in the baffle, each inner side wall of each threading hole (12) is fixedly connected with an annular bag (13), and the vertical cavity (10) is communicated with the annular bags (13) through a plurality of communicating pipes.

3. The device for preventing the smoke and fire from entering the chamber for the cable trench according to claim 2, wherein the upper side wall of the storage chamber (4) is transparent.

4. The utility model discloses a cable pit is with preventing that smoke and fire enters room device, according to claim 3, the vertical rack (14) that sets up of lateral wall fixedly connected with on apron (3), rack (14) upper end extends to translucent cover (11) outside setting and fixedly connected with warning flag (15), fixed mounting has air discharge fan (16) in translucent cover (11) lateral wall, the pivot of air discharge fan (16) extend to set up in translucent cover (11) and with wall body (1) fixed connection, fixed cover is equipped with gear (17) of being connected with rack (14) meshing in the pivot of air discharge fan (16).

5. The device for preventing the smoke and fire from entering the room for the cable trench according to claim 4, wherein a short pipe (18) matched with the exhaust fan (16) is arranged on the outer side wall of the transparent cover (11), and a one-way valve is installed in the short pipe (18).