CN217518709U - Tunnel cross passage fire-proof flood-proof door - Google Patents

Abstract

The utility model discloses a tunnel cross aisle fire prevention flood gate, including guard gate board, action drive arrangement and action trigger system. The protective door plate is arranged at a door opening arranged in the transverse channel. The action triggering system is arranged between the protective door plate and the main hole on the corresponding side and is used for triggering the action driving device to act when the water burst depth in the transverse channel reaches a set value or the smoke concentration in the main hole reaches a set value. Action drive arrangement sets up in the top of cross passage and links to each other with guard gate board to be used for making the rolling to transfer in the guard gate board of door opening top and seal the door opening under action trigger system's triggering, and then block gushing water in the cross passage and smog through the main hole of cross passage entering opposite side. The utility model discloses a fire prevention flood gate can realize the self-closing of tunnel cross passageway protective door board, can be applied to tunnel construction period cross passageway manger plate and operation period cross passageway fire prevention under the special hydrogeological condition simultaneously, "facing forever and combining" requirement advocated during the realization tunnel engineering construction.

Description

Tunnel cross passage fire-proof flood-proof door

Technical Field

The utility model relates to a tunnel engineering technical field especially relates to a tunnel cross gate that prevents fires and flood gate.

Background

With the continuous development of national infrastructure and the demand of high-quality urban development, high-risk projects such as river-crossing tunnels and complex mountain tunnels containing a large amount of water are increased gradually. The existing tunnel construction scheme is generally a left-right tunnel scheme with separated up and down, and when the construction period is short, a tunnel room constructed in advance is often used for increasing the construction working surface through a transverse passage, and the allocation and transportation of vehicles, personnel and materials are facilitated. When a river, a lake, a reservoir and a stratum containing a large amount of water are penetrated downwards, an extreme condition that the tunnel is submerged by a large amount of water leakage due to stratum mutation can be caused, for example, when a certain tunnel penetrates through a reservoir section, a water permeable accident happens to a cavern at one side, the water enters the cavern at the other side rapidly, and a plurality of casualties are caused.

As the fire protection requirements of the left and right caverns of the tunnel in the operation period are only specified in the current stage specification, and the flood prevention in the construction and operation periods is not clearly specified, a tunnel transverse passage fire-proof flood-proof door with dual functions of emergency flood prevention and fire and smoke prevention is temporarily absent in the market, and the two functional requirements of water-retaining flood prevention in the construction period and fire and smoke prevention in the operation period cannot be realized by utilizing one set of protection door system, so that the permanent combination of the tunnel transverse passage fire-proof flood-proof door and the flood prevention door in the operation period can be realized.

SUMMERY OF THE UTILITY MODEL

The utility model provides a tunnel cross aisle fire prevention flood gate to solve the technical problem that one set of guard gate system now can not realize the manger plate during the construction and prevent flooding, the fire prevention of operation phase separates two functional demands of cigarette.

The utility model adopts the technical scheme as follows:

a tunnel cross passage fire-proof flood-proof door is characterized in that the cross passage is communicated between main holes on the left side and the right side, and the fire-proof flood-proof door is respectively arranged in two ends of the cross passage and close to the main holes on the corresponding side; the fire-proof and flood-proof door comprises a protective door plate for water retaining and fire proofing, an action driving device for driving the protective door plate to act, and an action triggering system for triggering the action driving device to act; the protective door plate is arranged at a door opening arranged in the transverse channel; the action triggering system is arranged between the protective door plate and the main hole on the corresponding side and is used for triggering the action driving device to act when the water burst depth in the transverse channel reaches a set value or the smoke concentration in the main hole reaches a set value; action drive arrangement sets up in the top of cross passage and links to each other with guard gate board to be used for making the rolling to transfer in the guard gate board of door opening top and seal the door opening under action trigger system's triggering, and then block gushing water in the cross passage and smog through the main hole of cross passage entering opposite side.

Further, the action triggering system comprises a water triggering device and a smoke triggering device; the water-meeting triggering device is arranged at the lower part of the transverse channel and is close to the main hole at the corresponding side, so as to trigger the action driving device when the water-inrush depth in the transverse channel reaches a set value; the smoke trigger device is arranged at the top of the main hole and connected with the action driving device on the corresponding side, so as to trigger the action driving device when the smoke concentration in the main hole reaches a set value.

Furthermore, the action driving device comprises a scroll arranged above the door opening, a winding wheel arranged on the scroll at intervals in sequence along the length direction of the scroll, and an external motor connected to one end of the scroll; the winding shaft is arranged along the width direction of the door opening and is used for winding the protective door plate in cooperation with the winding wheel in the construction period of the tunnel; the external motor is arranged at the top of the transverse passage between the two protective door panels and is connected with the water-meeting trigger device.

Furthermore, the water-encountering triggering device comprises an outer box body arranged on the wall at the bottom end of the transverse channel, a water-absorbing expansion block, a limiting strip, a connecting spring, a jacking strip, a wheel shaft wound with silk threads and an iron block arranged outside the outer box body, wherein the water-absorbing expansion block, the limiting strip, the connecting spring, the jacking strip and the wheel shaft are arranged in the outer box body; the outer box body is hollowed out, so that water gushing in the transverse channel can flow into the outer box body; one end of the limiting strip is rotatably arranged, and the other opposite end of the limiting strip is lapped on the top of the water-absorbing expansion block; one end of the connecting spring is connected with the inner wall surface of the outer box body, the other end opposite to the connecting spring props against the limiting strip, the jacking strip is coaxially arranged opposite to the connecting spring at intervals, the wheel shaft is rotatably arranged, and a connecting block which is sleeved on the excircle of the jacking strip in a sliding manner extends outwards from one end of the jacking strip; the silk thread is wound on the wheel shaft, the free end of the silk thread extends out of the outer box body and then suspends the iron block, and the iron block is suspended right above the starting switch of the external motor.

Furthermore, the water-encountering triggering device comprises an upper liquid level detector, a lower liquid level detector and a controller, wherein the upper liquid level detector and the lower liquid level detector are arranged on the wall at the bottom end of the transverse channel and are sequentially arranged from top to bottom, and the controller is respectively connected with the upper liquid level detector and the lower liquid level detector; the controller is connected with the external motor; or the water-meeting triggering device comprises a liquid level detector arranged on the wall at the bottom end of the transverse passage and a controller connected with the liquid level detector; the controller is connected with the external motor.

Furthermore, the door opening is square, the periphery of the door opening is provided with an inwards concave water bleeding door groove which is communicated with the square frame, and the water bleeding door groove comprises a top door groove positioned at the top of the door opening, side door grooves positioned at two sides of the door opening and a bottom door groove positioned at the bottom of the door opening; the action driving device is arranged in the top door groove; the periphery of the lowered protective door plate is arranged in the bleeding door groove on the corresponding side; the bottom gate slot is connected with a drain pipe for draining accumulated water.

Furthermore, the tunnel transverse passage fireproof and flood-proof door also comprises a groove sealing soft strip for sealing the bleeding door groove, and the groove sealing soft strip is adhered to the periphery of the door opening along the extending direction of the bleeding door groove; the flexible strip of the sealing groove is provided with an easy-to-fold structure extending along the length direction of the flexible strip, so that the protective door plate can be smoothly placed under the condition of stress disconnection when the protective door plate falls, and two disconnected edges of the flexible strip of the sealing groove are respectively tightly attached to two opposite surfaces of the protective door plate for sealing.

Furthermore, the tunnel transverse channel fireproof and flood-proof door also comprises an expansion sealing strip paved on the bottom surfaces of the side door grooves and the bottom door groove; the expansion sealing tape is used for expanding and coating the corresponding side edge of the protective door plate after absorbing water so as to seal the gap between the protective door plate and the bleeding door groove on the corresponding side.

Furthermore, the protective door plate comprises a roller shutter door body matched with the door opening, two rows of rollers which are arranged at two sides of the roller shutter door body at intervals in sequence, and a support frame for mounting each roller; the rolling shutter door body is used for rolling on the action driving device in the tunnel construction period; the roller rolls and supports on the expansion sealing belt on the corresponding side.

Furthermore, the rolling shutter door body comprises a square plate-shaped central framework body, fireproof cloth adhered to two opposite surfaces of the central framework body, and a waterproof coiled material adhered to the fireproof cloth and removed in the tunnel operation period; the central framework body comprises a heat insulation material filled inside, built-in steel chains which are arranged at intervals in sequence along the width direction of the central framework body and extend along the height direction, nested circular pipes which are arranged horizontally and are respectively arranged at the upper end and the lower end of the central framework body, and built-in steel strips which are laid on two surfaces of the heat insulation material in sequence along the height direction; two ends of the built-in steel chain are respectively connected with the nested ring pipes of the corresponding ends; the built-in steel strips extend along the horizontal direction, and the built-in steel strips on the two surfaces of the heat insulation material are correspondingly arranged and connected to form a segment of the central framework body.

The utility model discloses following beneficial effect has:

the utility model provides a water-retaining and fireproof dual-purpose protective door which can be mainly used for retaining water in the transverse channel during the tunnel construction period and can also realize the partition fireproof function during the operation period, aiming at the problems that the transverse channel fireproof flood-preventing door is required by the high-risk tunnel engineering construction period such as temporarily not passing through rivers, lakes, reservoirs and strata containing a large amount of water bodies on the market and the tunnel flood-preventing and fireproof dual-purpose protective door combined with the construction period and the operation period; the fireproof and flood-proof door is in a rolling state during normal construction at ordinary times, normal construction is not affected, but when a large amount of seepage water disasters or fire disasters happen suddenly in one cavern, the fireproof and flood-proof door can be automatically put down and closed, so that a transverse passage is cut off, and water burst or smoke is prevented from entering the other cavern through the transverse passage, so that the operation safety in the construction period is improved, and property loss is reduced; meanwhile, the fireproof flood gate also has the functions of smoke isolation and fire prevention, so that the fireproof flood gate can meet the functional requirements of two stages of a tunnel construction period and an operation period, and realizes 'temporary and permanent combination' advocated by engineering construction; the utility model discloses a fire prevention flood gate adopts the integration of small-size device, realize tunnel cross passageway protective door board 30's self-closing, simultaneously through designing a new fire prevention flood gate structural system of roll curtain formula, make this protective door can be applied to tunnel construction period cross passageway manger plate and operation period cross passageway fire prevention under the special hydrogeological condition, realize "facing forever and combining" requirement advocated during the tunnel engineering construction, better economic value and practical value have, along with the further expansion in infrastructure construction market, this protective door has better market prospect.

In addition to the above-described objects, features and advantages, the present invention has other objects, features and advantages. The present invention will be described in further detail with reference to the drawings.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification. In the drawings:

FIG. 1 is a front view of a tunnel cross passage fire-proof flood-proof door according to a preferred embodiment of the present invention;

FIG. 2 is a schematic sectional view taken along line I-I in FIG. 1;

FIG. 3 is a schematic sectional view taken along line II-II in FIG. 1;

FIG. 4 is a side view of the tunnel cross passage fire and flood prevention door according to the preferred embodiment of the present invention;

FIG. 5 is a schematic diagram of a fourth embodiment of the water-triggered device of FIG. 1.

Description of the drawings

10. A transverse channel; 101. a perimeter; 20. a main hole; 30. a protective door panel; 31. a roller shutter door body; 311. a central skeleton body; 3111. a thermal insulation material; 3112. a steel chain is arranged inside; 3113. nesting a ring pipe; 3114. internally arranging a steel strip; 312. fireproof cloth; 313. waterproof coiled materials; 32. a roller; 33. a support frame; 40. an action driving device; 41. a reel; 42. a winding wheel; 43. an external motor; 50. a water-encountering trigger device; 51. an outer case; 52. a water-absorbing expansion column; 53. the limiting strip can be moved; 54. a connecting spring; 55. a pulley block; 56. a silk thread; 57. a wheel axle; 58. an iron block; 61. a top gate slot; 62. a side door slot; 63. a bottom door slot; 70. a drain pipe; 80. sealing the groove soft strip; 90. an expansion seal tape; 110. and a limiting baffle.

Detailed Description

The embodiments of the invention will be described in detail below with reference to the drawings, but the invention can be implemented in many different ways, which are defined and covered below.

Referring to fig. 1, the preferred embodiment of the present invention provides a tunnel cross passage fire-proof flood gate, the cross passage 10 is connected between the main holes 20 at the left and right sides, and the fire-proof flood gate is respectively located in the two ends of the cross passage 10 and close to the main holes 20 at the corresponding sides. The fire-proof and flood-proof door comprises a protective door plate 30 for water and fire prevention, an action driving device 40 for driving the protective door plate 30 to act, and an action triggering system for triggering the action driving device 40 to act. The security door panel 30 is installed at a door opening provided in the cross passage 10. The action triggering system is arranged between the protective door panel 30 and the main hole 20 on the corresponding side, and is used for triggering the action driving device 40 to act when the water burst depth in the transverse channel 10 reaches a set value or the smoke concentration in the main hole 20 reaches a set value. The action driving device 40 is arranged at the top of the transverse channel 10 and connected with the guard door panel 30, so as to enable the guard door panel 30 wound above the door opening to be lowered to seal the door opening under the triggering of the action triggering system, and further block water gushing and smoke in the transverse channel 10 from entering the main opening 20 on the other side through the transverse channel 10.

The utility model discloses a tunnel cross passage fire prevention flood gate is in tunnel construction period, when one side initiative 20 gushes water and leads to the cross passage 10 that links to each other to intake, or when main hole 20 takes place the conflagration and leads to smog to produce, when waiting to gush the water degree of depth and reach the setting value or main hole 20 in smog concentration reaches the setting value, action trigger system starts trigger action drive arrangement 40, action drive arrangement 40 makes the protective door panel 30 who rolls up in the door opening top transfer and seal the door opening, thereby block in time that intake and smog in the cross passage 10 get into the main hole 20 of opposite side through cross passage 10, thereby realize emergent manger plate and fire prevention of tunnel construction period; the utility model discloses a tunnel cross gate fire prevention flood gate is in tunnel operation phase, and protection door plant 30 transfers and seals or semi-closed door opening to wear to establish cross gate 10 in case the driving a vehicle, protection door plant 30 mainly used fire prevention this moment, nevertheless when corresponding side main entrance 20 gushes water, also can be used to emergent manger plate equally.

The utility model provides a water-retaining and fireproof dual-purpose protective door which can be mainly used for retaining water in a transverse channel in a tunnel construction period and can also realize a partition fireproof function in an operation period, aiming at the problems that the transverse channel fireproof and flood-preventing door is temporarily arranged in the market and is needed in the construction period of high-risk tunnel engineering such as rivers, lakes, reservoirs and strata containing a large amount of water bodies and the like, and the flooding-preventing and fireproof dual-purpose protective door is combined with the construction period and the operation period; the fireproof and flood-proof door is in a rolling state during normal construction at ordinary times, normal construction is not affected, but when a large amount of seepage water disasters or fire disasters happen suddenly in one cavern, the fireproof and flood-proof door can be automatically put down and closed, so that the transverse passage 10 is cut off, and water burst or smoke is prevented from entering the other cavern through the transverse passage 10, so that the operation safety in the construction period is improved, and property loss is reduced; meanwhile, the fireproof flood-proof door also has the functions of smoke isolation and fire prevention, so that the fireproof flood-proof door can meet the functional requirements of two stages of a tunnel construction period and an operation period, and the 'temporary and permanent combination' advocated by engineering construction is realized; the utility model discloses a fire prevention flood gate adopts the integration of small-size device, realize tunnel cross passageway protective door board 30's self-closing, simultaneously through designing a new fire prevention flood gate structural system of roll curtain formula, make this protective door can be applied to tunnel construction period cross passageway manger plate and operation period cross passageway fire prevention under the special hydrogeological condition, realize "facing forever and combining" requirement advocated during the tunnel engineering construction, better economic value and practical value have, along with the further expansion in infrastructure construction market, this protective door has better market prospect.

Optionally, the action-triggering system includes a water-trigger device 50 and a smoke-trigger device. Water-encountering activation device 50 is disposed at a lower portion of cross-channel 10, near main hole 20 on the corresponding side, for activating motion-driving device 40 when the depth of water inrush in cross-channel 10 reaches a set value. The smoke trigger device is disposed at the top of the main hole 20 and connected to the corresponding action driving device 40, so as to trigger the action driving device 40 when the smoke concentration in the main hole 20 reaches a set value.

In this alternative, as shown in fig. 1, the operation driving device 40 includes a winding shaft 41 disposed above the door opening, a winding wheel 42 mounted on the winding shaft 41 at intervals in the longitudinal direction of the winding shaft 41, and an external motor 43 connected to one end of the winding shaft 41. The winding shaft 41 is laid in the width direction of the door opening for winding the guard door panel 30 in cooperation with the winding wheel 42 during construction of the tunnel. The external motor 43 is disposed on the top of the transverse channel 10 between the two guard door panels 30 and is connected to the water-encountering trigger device 50. In this alternative, the external motor 43 is disposed at the top of the transverse passage 10 between the two guard door panels 30, so as to prevent the motor from being damaged due to flooding, and improve the reliability, safety and service life of the operation of the motion driving device 40.

In this alternative, the smoke trigger device includes an ion-type smoke sensor and a controller connected to the ion-type smoke sensor, and the external motor 43 is connected to the controller; the ionic smoke sensor is attached to the top of the main hole 20 at the intersection with the cross channel 10. When dense smoke released in the initial stage of fire disaster is suddenly on the top of the main tunnel, an ion field generated in the sensor loses stability, the electric balance state is broken, a detection electric signal is output and is identified and processed by the controller, the external motor 43 is excited to be opened by the electric switch, the protective door plate 30 is lowered and closed, and the fire and smoke diffusion is cut off. The ion type smoke sensor can be installed and debugged after the project is finished and before the project is operated.

In this alternative, a first embodiment of the water-triggering device 50, not shown, the water-triggering device 50 includes an upper liquid level detector and a lower liquid level detector which are arranged on the wall of the bottom end of the cross passage 10 and are arranged in sequence from top to bottom, and a controller respectively connected to the upper liquid level detector and the lower liquid level detector. The controller is connected to an external motor 43. In this alternative, the upper and lower level detectors are conventional level sensors. During operation, when gushing water and reaching the height that liquid level detector detected in the cross passage 10, go up liquid level detector and send liquid level signal for the controller, the controller controls external motor 43 action according to the last liquid level signal that receives correspondingly, makes the protective door panel 30 of rolling transfer and seals the door opening, and then blocks in time that gushes water and smog and get into the main hole 20 of opposite side through cross passage 10 to realize emergent manger plate and the fire prevention of tunnel construction period. When the water burst height in the transverse channel 10 is reduced to the detection height of the lower liquid level detector, the lower liquid level detector sends a lower liquid level signal to the controller, the controller correspondingly controls the external motor 43 to act according to the received lower liquid level signal, when the external motor 43 controls the protective door plate 30 to be in a rolling state, the controller controls the external motor 43 to continue to keep the current action, so that the protective door plate 30 keeps rolling, and when the external motor 43 controls the protective door plate 30 to be in a releasing state, the controller controls the external motor 43 to act, so that the released protective door plate 30 is gradually rolled upwards until the door opening is completely opened, thereby realizing the automatic rolling of the protective door plate 30; in addition, the action driving device 40 can be further connected with a starting switch, the starting switch is installed on the inner wall of the transverse channel 10 between the two protective door panels 30 and is higher than the water contact triggering height of the water contact triggering device 50, so that after water burst or fire prevention, the starting switch can be manually triggered to enable the lowered protective door panels 30 to be rolled upwards.

In this alternative, a second embodiment of water-stop apparatus 50, not shown, includes a liquid level detector disposed on the bottom wall of cross-channel 10, and a controller coupled to the liquid level detector, and is also included in water-stop apparatus 50. The controller is connected to an external motor 43. In this alternative, the liquid level detector is a hydraulic pressure sensor, or other sensors that generate different electrical signals according to the liquid level. When the tunnel emergency water retaining and fire preventing device works, when water gushes in the transverse passage 10, the liquid level detector continuously sends a liquid level height signal to the controller, when the liquid level height signal received by the controller reaches a system preset maximum value, the controller starts a signal to control the external motor 43 to start, the rolled protective door plate 30 is lowered to seal the door opening, and then the water gushing or smoke is blocked in time to enter the main opening 20 on the other side through the transverse passage 10, so that emergency water retaining and fire preventing in the tunnel construction period are realized; when the liquid level height signal received by the controller is the system preset minimum value, if the external motor 43 controls the protective door plate 30 to be in the rolling state, the controller controls the external motor 43 to continue to keep the current action, the protective door plate 30 keeps rolling, and if the external motor 43 controls the protective door plate 30 to be in the lowering state, the controller controls the external motor 43 to act, so that the lowered protective door plate 30 is gradually rolled upwards until the door opening is completely opened, and the protective door plate 30 is automatically rolled; in addition, the action driving device 40 can be further connected with a starting switch, the starting switch is installed on the inner wall of the transverse channel 10 between the two protective door panels 30 and is higher than the water contact triggering height of the water contact triggering device 50, so that after water burst or fire prevention, the starting switch can be manually triggered to enable the lowered protective door panels 30 to be rolled upwards.

In this alternative, the third embodiment of the water-contacting triggering device 50, not shown, includes an outer box disposed on the wall of the bottom end of the transverse passage 10, a water-absorbing expansion block disposed inside the outer box, a limiting bar, a connecting spring, a top moving bar, a wheel axle wound with silk threads, and an iron block disposed outside the outer box. The outer box body is hollowed out, so that the water gushing in the transverse channel 10 can flow into the outer box body. One end of the limiting strip is rotatably arranged, and the other opposite end of the limiting strip is lapped on the top of the water absorption expansion block. One end of the connecting spring is connected with the inner wall surface of the outer box body, the other opposite end of the connecting spring abuts against the limiting strip, the ejection moving strip is arranged coaxially and at intervals relative to the connecting spring, the wheel shaft is arranged in a rotating mode, and the connecting block on the excircle of the ejection moving strip is arranged at the outer end of the wheel shaft in a sliding sleeved mode. The silk thread is wound on the wheel shaft, the free end of the silk thread extends out of the outer box body and then suspends the iron block, and the iron block is suspended right above the starting switch of the external motor 43. When water gushes from the transverse channel 10 and enters the outer box body, the water-absorbing expansion block absorbs water to expand, the top of the water-absorbing expansion block is propped up the limiting strip, so that the limiting strip rotates upwards around the hinged end of the limiting strip in a vertical plane, when the limit strip rotates for a set angle, the compressed connecting spring is released, and at the moment of releasing the connecting spring, the end part of the top moving strip impacts a top moving strip which is coaxially arranged, the top moving strip slides out of a limiting hole which is arranged on a connecting block, after the top moving strip slides out of the limiting hole, the wheel shaft is unlocked, and under the action of the self weight of the iron block, the wheel shaft rotates and the iron block is lowered under the pulling action of the silk thread wound on the wheel shaft, the lowered iron block touches a starting switch of the external motor 43 right below, the external motor 43 is started, the rolled protective door plate 30 is lowered to close the door opening, further blocking water and smoke from entering the main hole 20 at the other side through the transverse channel 10 in time, and realizing emergency water retaining and fire prevention during the tunnel construction period; and gush the water after, change new chance water trigger device 50 again, and action drive arrangement 40 still is connected with starting switch, and starting switch installs on the inner wall of cross passage 10 between two guard door panels 30, and is higher than the chance water trigger height who meets water trigger device 50 to gush water or after preventing fires, can artifical manual trigger starting switch make the guard door panel 30 of transferring roll up.

Alternatively, a fourth embodiment of the water-triggering device 50, as shown in fig. 4 and 5, the water-triggering device 50 includes an outer case 51 disposed on the bottom wall of the cross passage 10, two water-absorbing expansion columns 52 disposed in the outer case 51 at an opposite interval, a movable stopper 53 connected to the top ends of the two water-absorbing expansion columns 52, a connecting spring 54, a wheel shaft 57 wound with a wire 56, a pulley block 55, and an iron block 58 disposed outside the outer case 51. The outer box 51 is hollowed out so that the water gushing from the transverse channel 10 can flow into the outer box 51. The axle 57 is rotatably provided with a connecting block with a groove, the connecting spring 54 is positioned above the movable limiting strip 53, one end of the connecting spring 54 is connected with the inner wall surface of the outer box body 51, and the other opposite end is hooked in the groove of the connecting block to limit the rotation of the axle 57. The pulley block 55 is arranged inside and outside the outer box body 51, the silk thread 56 is wound on the wheel axle 57, the free ends of the silk thread are respectively wound on the rear end parts of the pulley block 55 to be connected with the iron block 58 in a hanging way, and the iron block 58 is hung over the starting switch of the external motor 43. In this alternative, the water-absorbing expansion column 52 includes a hollow cylindrical limiting outer hoop column and water-swelling strips disposed in the limiting outer hoop column, and the movable limiting strip 53 is connected to the top ends of the two water-swelling strips.

When water gushes from the transverse channel 10 and enters the outer box body 51, the water-swellable strip inside the water-swellable column 52 absorbs water and swells, extends upwards along the vertical direction under the limit of the limit outer hoop column, so as to drive the connecting spring 54 to deflect upwards, the free end of the connecting spring 54 is separated from the groove of the connecting block in the upward deflection process, the wheel shaft 57 is unlocked, under the self-weight action of the iron block 58, the wheel shaft 57 rotates under the pulling action of the silk thread 56 wound on the wheel shaft 57, the iron block 58 is lowered, the lowered iron block 58 touches the starting switch of the external motor 43 right below, the external motor 43 is started, the rolled protective door plate 30 is lowered to close the door hole, and the gushing water is blocked from entering the main hole 20 on the other side through the transverse channel 10 in time, so as to realize emergency water blocking in the tunnel construction period; gush the water after the back, the water trigger device 50 is met to more renewal new again, and action drive arrangement 40 still is connected with starting switch, and starting switch installs on the inner wall of cross passage 10 between two protective door panels 30, and is higher than meeting water trigger device 50 and meet water trigger height to gush the water after the back, but artifical manual trigger starting switch makes the protective door panel 30 of transferring upwards rolling.

Optionally, as shown in fig. 1, the door opening is square, and the periphery 101 of the door opening is provided with recessed and communicated square bleeding door slots, which include a top door slot 61 located at the top of the door opening, side door slots 62 located at both sides of the door opening, and a bottom door slot 63 located at the bottom of the door opening. The operation driving device 40 is installed in the top door groove 61. The outer periphery of the lowered guard door plate 30 is installed in the bleeding door groove on the corresponding side. The bottom gate groove 63 is connected with a drain pipe 70 for draining accumulated water.

Preferably, as shown in fig. 1, the tunnel cross passage fire and flood prevention door further comprises a groove sealing soft strip 80 for sealing the bleeding door groove, and the groove sealing soft strip 80 is adhered to the periphery of the door opening along the extending direction of the bleeding door groove. The soft strip 80 of the sealing groove is provided with an easy-to-break structure extending along the length direction thereof, so that the protective door plate 30 is smoothly placed when the protective door plate 30 falls, and two broken edges of the soft strip 80 of the sealing groove are respectively sealed by clinging to two opposite surfaces of the protective door plate 30. In this preferred scheme, as shown in fig. 1, seal soft strip in groove 80 thick 2 ~ 4mm for prevent that the foreign matter from filling the bleeding door groove, and be used for guaranteeing to transfer when protection door plant 30 and tear the soft strip in groove 80 after, two break edges of the soft strip in groove 80 of seal hug closely the two sides that protection door plant 30 is relative respectively, thereby reach the manger plate effect. Further, as shown in fig. 2 and fig. 3, the fire and flood protection door for tunnel cross passage further includes two limit baffles 110 respectively disposed at each side door slot 62, the two limit baffles 110 are oppositely disposed at intervals and fixed on the corresponding periphery of the door opening, and the groove sealing soft strip 80 is adhered to the limit baffles 110. The limiting baffle 110 is used for ensuring that the position of the protective door does not deviate when the protective door bears water pressure, and the waterproof effect is ensured.

In this preferred scheme, the first embodiment of easy book structure, easy book structure is including the center that is located the soft strip 80 width direction of a groove and along the fracture that the soft strip 80 length direction of a groove interval set gradually, the fracture runs through the soft strip 80 of a groove along the thickness direction of the soft strip 80 of a groove, owing to the fracture effect that the interval set up in proper order on the soft strip 80 of a groove, reduce the structural strength of the soft strip 80 of a groove in this department, make easy breaking of easy book structure department during the soft strip 80 atress of a groove.

In this alternative, the second embodiment of easy book structure, easy book structure is including being located the center of the soft strip 80 width direction of a sealing groove and along the incision seam that the soft strip 80 length direction of a sealing groove extends, the incision seam is formed by the processing of the lower surface indent of the soft strip 80 of a sealing groove, because the effect of the incision seam that indent processing set up on the soft strip 80 lower surface of a sealing groove, reduce the structural strength of the soft strip 80 of a sealing groove in this department, make easy breaking in easy book structure department during the soft strip 80 atress of a sealing groove.

Preferably, as shown in fig. 2 and 3, the tunnel cross-channel fire and flood prevention door further comprises an expansion sealing strip 90 laid on the bottom surfaces of the side door grooves 62 and the bottom door groove 63. The expansion sealing tape 90 is used for expanding and covering the corresponding side edge of the protective door panel 30 after absorbing water so as to seal the gap between the protective door panel 30 and the bleeding door groove on the corresponding side. In the preferred embodiment, the expansion sealing tape 90 is a water-swellable rubber strip, and when the rubber strip is soaked in water, the material is expanded to wrap the corresponding side edge of the protective door panel 30, so as to form secondary bleeding; and a soft water-swellable rubber strip is arranged in the bottom door groove 63, when the protective door panel 30 is lowered and pressed on the rubber strip, swelling bulges are formed on two sides of the rubber strip, and a secondary bleeding effect of the bottom door groove 63 is formed.

Alternatively, as shown in fig. 1, the security door panel 30 includes a rolling door body 31 corresponding to the door opening, two rows of rollers 32 disposed at two sides of the rolling door body 31 and spaced in sequence, and a support frame 33 for each roller 32. The rolling shutter door 31 is used to roll up on the motion driving device 40 during tunnel construction. The roller 32 is roll-supported on the expansion seal band 90 on the corresponding side. The rollers are arranged on two sides of the protective door plate 30, so that sliding friction between the protective door plate 30 and the expansion sealing belt 90 can be reduced, and the protective door plate 30 can be conveniently and smoothly transferred and rolled.

In this alternative, as shown in fig. 1, the rolling door 31 includes a central skeleton body 311 in a square plate shape, fire-proof cloths 312 adhered to opposite surfaces of the central skeleton body 311, and a waterproof roll 313 adhered to the fire-proof cloths 312 and removed during a tunnel operation period. The central frame body 311 includes a heat insulating material 3111 filled inside, built-in steel chains 3112 arranged in the width direction of the central frame body 311 at intervals in sequence and extending in the height direction, nested collars 3113 arranged horizontally and respectively at the upper and lower ends of the central frame body 311, and built-in steel strip 3114 laid in the height direction on both surfaces of the heat insulating material 3111 in sequence. Both ends of the built-in steel chain 3112 are connected to the nested collars 3113 of the corresponding ends, respectively. The built-in steel strips 3114 extend in the horizontal direction, and the built-in steel strips 3114 on both surfaces of the heat insulating material 3111 are disposed correspondingly and connected to form segments of the central skeleton body 311.

In the specific embodiment of this alternative, the internal steel chains 3112 arranged at intervals are used as the soft chains vertically connected to the rolling shutter door body 31, the central skeleton body 311 of the rolling shutter door body 31 is formed by combining the nested ring pipes 3113 arranged at the two ends of the rolling shutter door body 31, the steel edges at the periphery and the internal steel strips 3114, and the central skeleton body 311 is filled with heat insulation cotton or other heat insulation materials 3111 to form a heat insulation layer; fireproof cloth 312 is bonded outside the heat insulation layer to realize fireproof, and the periphery of the fireproof cloth 312 is compressed by steel edges; and a waterproof coiled material 313 is adhered to the outer side of the fireproof cloth 312 to form a waterproof layer, so that the protective door panel with the double functions of fire prevention and water retaining is formed, and the thickness of the panel is 6-10 cm. Further, because the tunnel operation no longer needs the manger plate function, and waterproofing membrane 313 on top layer can influence the fire prevention function of guard gate, finishes, before beginning the operation in tunnel construction period, need tear the waterproof material on guard gate surface, and guard gate panel 30 is by manger plate flood prevention function conversion fire prevention function.

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

Claims (10)

1. A tunnel cross passage fire-proof flood-proof door, a cross passage (10) is communicated between main holes (20) at the left and right sides, characterized in that the fire-proof flood-proof door is respectively arranged in the two ends of the cross passage (10) and close to the main holes (20) at the corresponding side;

the fire-proof and flood-proof door comprises a protective door plate (30) for water and fire prevention, an action driving device (40) for driving the protective door plate (30) to act, and an action triggering system for triggering the action of the action driving device (40);

the protective door plate (30) is arranged at a door opening arranged in the transverse channel (10);

the action triggering system is arranged between the protective door panel (30) and the main hole (20) on the corresponding side and is used for triggering the action driving device (40) to act when the water burst depth in the transverse channel (10) reaches a set value or the smoke concentration in the main hole (20) reaches a set value;

the action driving device (40) is arranged at the top of the transverse channel (10) and connected with the protective door plate (30) so as to enable the protective door plate (30) wound above the door opening to be lowered and seal the door opening under the triggering of the action triggering system, and then water burst and smoke in the transverse channel (10) are blocked from entering the main opening (20) on the other side through the transverse channel (10).

2. The fire and flood protection door for tunnel cross-channel of claim 1,

the action-triggering system includes a water-triggering device (50) and a smoke-triggering device;

the water-meeting triggering device (50) is arranged at the lower part of the transverse channel (10) and is close to the main hole (20) at the corresponding side, so as to trigger the action driving device (40) when the water-rushing depth in the transverse channel (10) reaches a set value;

the smoke trigger device is arranged at the top of the main hole (20) and is connected with the action driving device (40) on the corresponding side, so that the action driving device (40) is triggered when the smoke concentration in the main hole (20) reaches a set value.

3. The fire and flood protection door for a transverse tunnel of a tunnel according to claim 2,

the action driving device (40) comprises a scroll (41) arranged above the door opening, a winding wheel (42) sequentially arranged on the scroll (41) at intervals along the length direction of the scroll (41), and an external motor (43) connected to one end of the scroll (41);

the winding shaft (41) is arranged along the width direction of the door opening and is used for matching with the winding wheel (42) to wind the protective door plate (30) in the construction period of the tunnel;

the external motor (43) is arranged at the top of the transverse channel (10) between the two protective door panels (30) and is connected with the water contact trigger device (50).

4. The fire and flood protection door for tunnel cross-channel of claim 3,

the water-encountering trigger device (50) comprises an outer box body arranged on the wall at the bottom end of the transverse channel (10), a water-absorbing expansion block, a limiting strip, a connecting spring, a top moving strip, a wheel shaft wound with silk threads and an iron block arranged outside the outer box body, wherein the water-absorbing expansion block, the limiting strip, the connecting spring, the top moving strip and the wheel shaft are arranged in the outer box body;

the outer box body is hollowed out, so that water gushing in the transverse channel (10) can flow into the outer box body;

one end of the limiting strip is rotatably arranged, and the other opposite end of the limiting strip is lapped on the top of the water-absorbing expansion block;

one end of the connecting spring is connected with the inner wall surface of the outer box body, the other end opposite to the connecting spring props against the limiting strip, the jacking strip is coaxially arranged opposite to the connecting spring at intervals, the wheel shaft is rotatably arranged, and a connecting block sleeved on the excircle of the jacking strip in a sliding manner extends out of one end of the jacking strip;

the silk thread is wound on the wheel shaft, the free end of the silk thread extends out of the outer box body and then suspends the iron block, and the iron block is suspended right above a starting switch of the external motor (43).

5. The fire and flood protection door for the transverse tunnel of claim 3,

the water-meeting triggering device (50) comprises an upper liquid level detector and a lower liquid level detector which are arranged on the wall at the bottom end of the transverse channel (10) and are sequentially arranged from top to bottom, and controllers which are respectively connected with the upper liquid level detector and the lower liquid level detector; the controller is connected with the external motor (43); or alternatively

The water-meeting triggering device (50) comprises a liquid level detector arranged on the wall of the bottom end of the transverse passage (10) and a controller connected with the liquid level detector; the controller is connected with the external motor (43).

6. The fire and flood protection door for tunnel cross-channel of claim 3,

the door opening is square, concave bleeding door slots which are communicated with the square frame are arranged on the periphery (101) of the door opening, and each bleeding door slot comprises a top door slot (61) positioned at the top of the door opening, side door slots (62) positioned at two sides of the door opening and a bottom door slot (63) positioned at the bottom of the door opening;

the action driving device (40) is internally installed in the top door slot (61);

the outer periphery of the lowered protective door plate (30) is arranged in the bleeding door groove on the corresponding side;

the bottom gate slot (63) is connected with a drain pipe (70) for draining accumulated water.

7. The fire and flood protection door for a transverse tunnel of a tunnel according to claim 6,

the tunnel transverse channel fireproof and flood-proof door further comprises a groove sealing soft strip (80) used for sealing the bleeding door groove, and the groove sealing soft strip (80) is adhered to the periphery of the door opening along the extending direction of the bleeding door groove;

the soft groove sealing strip (80) is provided with an easy-to-break structure extending along the length direction of the soft groove sealing strip, so that the protective door plate (30) is broken by force when falling to enable the protective door plate (30) to be smoothly placed, and two broken edges of the soft groove sealing strip (80) are respectively tightly attached to two opposite surfaces of the protective door plate (30) to be sealed.

8. The fire and flood protection door for tunnel cross-channel of claim 6,

the tunnel transverse channel fireproof and flood-proof door further comprises an expansion sealing strip (90) paved on the bottom surfaces of the side door grooves (62) and the bottom door groove (63);

the expansion sealing tape (90) is used for expanding and coating the corresponding side edge of the protective door panel (30) after absorbing water so as to seal the gap between the protective door panel (30) and the bleeding door groove on the corresponding side.

9. The fire and flood protection door for tunnel cross-channel of claim 8,

the protective door plate (30) comprises a roller shutter door body (31) corresponding to the door opening, two rows of rollers (32) arranged on two sides of the roller shutter door body (31) at intervals in sequence, and a support frame (33) used for mounting each roller (32);

the rolling shutter door body (31) is used for rolling on the action driving device (40) in the tunnel construction period;

the roller (32) is roll-supported on the expansion sealing band (90) on the corresponding side.

10. The fire and flood protection door for a transverse tunnel of a tunnel according to claim 9,

the rolling shutter door body (31) comprises a square plate-shaped central framework body (311), fireproof cloth (312) adhered to two opposite surfaces of the central framework body (311), and a waterproof coiled material (313) adhered to the fireproof cloth (312) and removed in a tunnel operation period;

the central framework body (311) comprises a heat insulation material (3111) filled inside, built-in steel chains (3112) which are arranged at intervals in sequence along the width direction of the central framework body (311) and extend along the height direction, nested circular pipes (3113) which are arranged horizontally and are respectively arranged at the upper end and the lower end of the central framework body (311), and built-in steel strips (3114) which are laid on the two surfaces of the heat insulation material (3111) in sequence along the height direction;

two ends of the built-in steel chain (3112) are respectively connected with the nested ring pipes (3113) at corresponding ends;

the built-in steel strips (3114) extend in a horizontal direction, and the built-in steel strips (3114) on both sides of the heat insulating material (3111) are correspondingly arranged and connected to form segments of the central skeleton body (311).

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