CN217925581U - Underground works are with fire prevention manger plate door - Google Patents

Abstract

The utility model discloses an underground works is with fire prevention manger plate door, include: two protective door plates are arranged along the width direction of the emergency escape passage, the two protective door plates are respectively connected with the door stacks on two sides in a rotating mode, and a normally closed limiting structure is arranged between each protective door plate and each door stack, so that the protective door plates are in a normally closed state and can only open the door in a single direction. The emergency water retaining device is arranged in the lower end of each protective door plate, the lower end of the protective door plate with the opening direction consistent with the incoming flow direction in the two protective door plates is filled with water, so that the emergency water retaining device in the protective door plate automatically falls down and is inserted into the installation slot below the protective door plate when the weight of water stored in the emergency water retaining device after water is filled reaches a set quantitative value, and the emergency water retaining device is further used for moving up under the action of manpower and being taken into the protective door plate. This neotype fire prevention manger plate door makes originally only have the guard gate of the single function of fire prevention and has the manger plate simultaneously and prevent flooding function, and then when the guarantee flood calamity takes place, people's life and property safety, and simple structure, cost are lower, have good economic benefits.

Description

Underground works are with fire prevention manger plate door

Technical Field

The utility model relates to a tunnel and underground works technical field, in particular to underground works is with fire prevention manger plate door.

Background

With the vigorous urban construction and underground space development in China, more and more river-crossing tunnels, underground shopping malls, underground parking lots and other projects are built and operated. At present, the national regional fire prevention of tunnels and underground projects sets up relevant requirements, and all specifications clearly set up that fire doors are arranged among all regions to carry out regional isolation protection, so that the large fire of the whole underground project caused by small fire in partial regions is avoided, the property loss is reduced, and all underground projects are provided with fire doors to carry out regional protection and isolation of the fire. However, no relevant standard is drawn up for the partition isolation protection of the flood disaster, the arrangement of the flood gate in the underground engineering is relatively lacked, and when the flood disaster happens, the property loss and the casualties of the underground engineering area are larger than the loss of the fire disaster.

At present, the protective door with the water retaining function on the market is complex in operation, heavy, multiple in matched electromechanical equipment and high in manufacturing cost, and during power-off protection, non-professionals or non-managers can not conveniently open and close by hands, so that emergency evacuation of personnel is prevented, and fewer flood-proof doors with the fire prevention function are provided.

SUMMERY OF THE UTILITY MODEL

The utility model provides an underground works is with fire prevention manger plate door to solve not having the manger plate function that current guard gate exists, or though have the manger plate function but operate complicated, heavy, supporting electromechanical device more, the technical problem that the cost is high, non professional or non-managers can not convenient bare-handed open and shut.

The utility model adopts the technical scheme as follows:

a fire-proof water retaining door for underground engineering, comprising: the emergency escape passage comprises two protective door plates with fireproof and waterproof functions, wherein the two protective door plates are arranged in an abutting mode side by side along the width direction of the emergency escape passage and are respectively in rotating connection with door stacks on two sides of the emergency escape passage, and a normally closed limiting structure is arranged between each protective door plate and the door stack on the corresponding side, so that the protective door plates are in a normally closed state and can only open the door in one direction towards the emergency escape direction; be equipped with emergent water retaining device in each protection door plant lower extreme, correspond in the terrace of protection door plant bottom below and be equipped with the installation slot that is used for the emergent water retaining device of holding, two protection door plant middle opening door direction and the unanimous protection door plant lower extreme of incoming flow direction intake, in the installation slot that inserts the below in order to make the emergent water retaining device in it automatic whereabouts when the water weight of depositing the dress after intaking reaches and establishes the quantitative value, open by the water effort with the restriction protection door plant, and emergent water retaining device still is used for shifting up under the human action in the income protection door plant.

Furthermore, the normally closed limiting structure comprises a door closer, wherein the door closer is arranged on the side, which cannot be opened, of the corresponding protective door panel and is connected between the protective door panel and the door stack on the corresponding side, so that the protective door panel is kept normally closed and can be opened only in one direction in the emergency escape direction; or the normally closed limiting structure comprises a door closer and a resistance spring; the door closer is arranged on the side, which can not be opened, of the corresponding protective door plate and is connected between the protective door plate and the door buttress on the corresponding side so as to keep the protective door plate normally closed and only open the door in one direction towards the emergency escape direction; and two ends of the resistance spring are respectively connected with the door closer and the door jamb so as to be used for pulling the protective door plate to return automatically.

Furthermore, the normally closed limiting structure comprises a coil spring arranged on a door shaft between the protective door plate and the door stack on the corresponding side, and a limiting block used for limiting the protective door plate to open the door in the direction opposite to the emergency escape direction; the limiting block is arranged on the door opening side of the protective door plate and abuts against the protective door plate on the corresponding side; the limiting strips at the two ends of the coil spring respectively support against the door stack and the side, which cannot be opened, of the protective door plate so as to keep the protective door plate normally closed; or the normally closed limiting structure comprises a spring and a limiting block; the limiting block is arranged on the door opening side of the protective door plate and abuts against the protective door plate on the corresponding side; the spring sets up in the side that can not open the door of guard gate board, and both ends are connected the door buttress respectively and are prevented opening the door side of door of guard gate board to be used for making guard gate board keep the normal close.

Furthermore, the bottom end of the protective door plate is provided with an installation cavity extending inwards, and a bearing surface on the door opening side of the protective door plate is provided with an outer water inlet hole communicated with the installation cavity; the emergency water retaining device comprises a water retaining box which is arranged in the mounting cavity in a vertically sliding manner, a pull ring and a lock nose of the lock bead lock which are connected to the water retaining box, and a lock catch of the lock bead lock which is connected to the inside of the protective door plate; the water retaining box is in a hollow box body shape and is connected into the protective door plate through the matching of the lock nose of the ball latch lock and the lock catch of the ball latch lock on the water retaining box, and an inner water inlet hole for allowing water overflowing from the outer water inlet hole to enter the water retaining box for temporary storage is formed in the water inlet surface, which is close to the bearing surface of the protective door plate, on the water retaining box; the pull ring extends out of the bearing surface of the protective door plate to move the water retaining box upwards under the action of external force.

Furthermore, a water outlet for the stored water to leak out is arranged at the bottom of the water retaining box, the drainage speed of the water outlet is lower than the water inlet speed of the inner water inlet hole, so that the weight of the stored water in the water retaining box is not lower than the gravity required for separating the lock nose of the snap bead lock from the lock catch of the snap bead lock when flood occurs; the bottom of the installation slot is also communicated with a drain pipe for discharging the water body leaking from the water retaining box to the outside out of the installation slot; the bearing surface of the protective door plate is also provided with two sliding grooves which are arranged side by side at intervals and extend along the height direction, the pull ring is in a notch ring shape, and two notch ends of the pull ring are respectively inserted into the two sliding grooves and then are connected with the water inlet surface of the water retaining box.

Furthermore, a lock nose of the latch bead lock is connected to the top of the water retaining box, a lock catch of the latch bead lock is connected to the protective door plate above the lock nose of the latch bead lock, and the lock nose of the latch bead lock and the lock catch of the latch bead lock are combined to form the latch bead lock; the number of the lock sets is multiple groups, and the multiple groups of lock sets are arranged at intervals along the width direction of the water retaining box.

Furthermore, the fireproof water retaining door for the underground engineering also comprises a groove sealing soft plate used for sealing and installing the inserting groove when the water retaining box is accommodated in the protective door plate; the two sides of the soft sealing groove plate are connected to the terraces on the two sides of the installation slot, the soft sealing groove plate is provided with an easy-to-break structure extending along the length direction of the soft sealing groove plate, so that the water baffle box is inserted into the installation slot when the water baffle box falls, and the two break ends of the soft sealing groove plate are respectively tightly attached to the water baffle box for sealing.

Furthermore, the easily-folded structure comprises fractures which are positioned in the center of the width direction of the sealing groove soft board and are sequentially arranged at intervals along the length direction of the sealing soft board, and the fractures penetrate through the sealing groove soft board along the thickness direction of the sealing groove soft board; or the easy-folding structure comprises a notch seam which is positioned in the center of the width direction of the groove sealing soft board and extends along the length direction of the groove sealing soft board, and the notch seam is formed by the concave processing of the lower surface of the groove sealing soft board.

Furthermore, the protective door plate comprises a framework layer positioned in the center, waterproof layers adhered to the front surface and the rear surface of the framework layer and used for preventing water, heat insulation layers laid on the waterproof layers and used for heat insulation, and fireproof layers laid on the heat insulation layers and used for preventing fire; the framework layer extends downwards to the middle lower part of the protective door plate, so that the lower part of the protective door plate forms an installation cavity, and the front wall surface and the rear wall surface of the installation cavity are provided with inner layer covers pasted with the inner side wall of the waterproof layer.

Furthermore, the fireproof water retaining door for the underground engineering further comprises a water retaining strip which is arranged along the peripheral edge of the protective door plate in an extending mode, the water retaining strip is used for expanding after absorbing water so as to seal gaps between the protective door plate and the periphery and between the protective door plate and the two protective door plates, and the water retaining strip is also used for shrinking after water loss; the fireproof water retaining door for the underground engineering also comprises an expansion sealing strip which extends along the length direction of the bottom of the installation slot and is laid on the bottom surface of the installation slot; the expansion sealing strip is used for absorbing water and expanding to seal a gap between the bottom end of the water retaining tank and the bottom surface of the mounting slot groove.

The utility model discloses following beneficial effect has:

the utility model discloses a fire prevention manger plate door for underground works adopts conventional device and material to prevent the transformation of fire door to utilize the protection door plant lower extreme to intake and make the principle that the emergent manger plate device weight increases after automatic whereabouts, realize that personnel can smoothly pass through when sudden flood disasters, and underground works are with fire prevention manger plate door automatic locking to block a large amount of floods and pass through this fire prevention manger plate door, and then make the protection door that originally only has fire prevention single function have the manger plate to prevent flooding function simultaneously, and then when guaranteeing flood disasters, people's lives and property safety; compared with the existing flood-proof door, the utility model has the advantages that the structure of the flood-proof door is greatly simplified by the fireproof water-retaining gate pole for the underground engineering, the matched electromechanical or mechanical equipment is not needed, the structure is simple, the preparation is easy, the manufacturing cost is lower, and the economic benefit is good; the utility model discloses an underground works is with fire prevention manger plate door simple structure, the laborsaving convenience of operation, non-professional personage's light opening and close of doing, use under the specially adapted emergency situation, have practical value and market prospect that are showing.

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 schematic view of the underground engineering fire-proof water-retaining door in a normal closed state according to the preferred embodiment of the present invention;

FIG. 2 is a schematic view illustrating a water blocking state of the fire-proof water-blocking door for the underground works of FIG. 1;

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

FIG. 4 is a schematic view in section III-III of FIG. 1;

FIG. 5 is an enlarged view of region VI of FIG. 1;

FIG. 6 is a cross-sectional view of IV-IV in soil 1;

FIG. 7 is a cross-sectional view taken along line V-V in FIG. 2;

FIG. 8 is a plan view of a guard door panel;

fig. 9 is a schematic view of the opening and closing directions of two guard door panels.

Description of the figures

10. A protective door panel; 101. a mounting cavity; 102. a bearing surface; 103. a chute; 11. a framework layer; 12. a waterproof layer; 13. a thermal insulation layer; 14. a fire barrier layer; 15. an inner cover; 20. a door jamb; 30. an emergency water retaining device; 31. a water retaining tank; 32. a pull ring; 33. a lock nose of the spring bead lock; 34. locking the lock catch of the ball latch; 40. a terrace; 401. installing a slot; 50. a drain pipe; 60. sealing the groove soft board; 601. a structure easy to break; 70. a normally closed limit structure; 71. a door closer; 72. a resistance spring; 80. a water stop strip; 90. the sealing strip is inflated.

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 and 2, a preferred embodiment of the present invention provides a fire prevention and water retaining door for underground works, including: two protective door panels 10 with fireproof and waterproof functions are arranged side by side and closely along the width direction of the emergency escape passage, the two protective door panels 10 are respectively and rotatably connected with door stacks 20 on two sides of the emergency escape passage, and a normally closed limiting structure 70 is arranged between each protective door panel 10 and the door stack 20 on the corresponding side, so that the protective door panels 10 are in a normally closed state and can only open the door in one direction towards the emergency escape direction. Be equipped with emergent water retaining device 30 in each protective door panel 10 lower extreme, correspond in the terrace 40 of protective door panel 10 bottom below and be equipped with the installation slot 401 that is used for the emergent water retaining device 30 of holding, open the door direction and the unanimous protective door panel 10 lower extreme of incoming flow direction is intake in two protective door panels 10, in order to make the emergent water retaining device 30 in it reach the installation slot 401 of automatic whereabouts below of setting up when quantitative value the water weight of depositing after intaking, open with restriction protective door panel 10 receives the water body effort, and emergent water retaining device 30 still is used for shifting up under the human action and takes in protective door panel 10.

The utility model discloses an underground works is with fire prevention manger plate door daily work, as shown in FIG. 8 and FIG. 9, two protective door panel 10 are the normally closed state, and emergent manger plate device 30 adduction is in corresponding protective door panel 10, when the people passes through, only need the application of force promote open the door direction with emergent escape direction unanimous one of them protective door panel 10 can, thereby make personnel can unobstructed through this fire prevention manger plate door, and the atress rotates protective door panel 10 of opening under normal close limit structure 70's effect, can reply to daily normally closed state automatically, thereby this daily normally closed state, can be used for emergent fire prevention. When a flood occurs on the left side as shown in fig. 9, the lower end of the first protective door plate 10, which is opened in the opposite direction to the incoming flow direction of the flood, is not filled with water, so that the first protective door plate 10 is not affected by the flood on the left side, and a daily normally closed working state is maintained, and the second protective door plate 10, which is matched with the first protective door plate 10, is opened in the same direction as the incoming flow direction of the flood due to the stress, so that the lower end of the second protective door plate 10 is filled with water, when the water filled in the lower end of the second protective door plate 10 does not make the weight of the water stored in the emergency water retaining device 30 reach a set quantitative value, the emergency water retaining device 30 is kept being held in the protective door plate 10, and a person on the left side can push the second protective door plate 10 by applying force to safely pass through the fire-proof water retaining door; when water enters from the lower end of the second protective door plate 10 to cause the weight of water stored in the emergency water retaining device 30 to reach a set value, the emergency water retaining device 30 automatically falls and the bottom end of the emergency water retaining device is inserted into the mounting slot 401 below, so that the second protective door plate 10 can be effectively prevented from being opened by the action of incoming flow, and the fireproof water retaining door for underground engineering of the utility model plays a role in emergency closing of water retaining; when emergent whereabouts of emergent water retaining device 30 insert installation slot 401, this emergent water retaining device 30 still can move up under the left side manpower effect in the back income guard gate board 10 to the emergent water retaining door that passes through of left side personnel of being convenient for, and personnel pass through the back, emergent water retaining device 30 will fall again under the effect that gets into the water and insert installation slot 401 in, thereby play the emergent effect of closing the manger plate once more.

The utility model discloses a fire prevention manger plate door for underground works adopts conventional device and material to prevent the transformation of fire door, and utilizes the principle that emergency manger plate device 30 weight increase automatic whereabouts after intaking under the protection door plant 10, realizes that personnel can smoothly pass through when sudden flood disasters, and underground works are with fire prevention manger plate door automatic locking to block a large amount of floods and pass through this fire prevention manger plate door, and then make the protection door that originally only has fire prevention single function have the manger plate anti-flooding function concurrently, and then when guaranteeing flood disasters, people's lives and properties safety; compared with the existing flood-proof door, the utility model has the advantages that the structure of the flood-proof door is greatly simplified by the fireproof water-retaining gate pole for the underground engineering, the matched electromechanical or mechanical equipment is not needed, the structure is simple, the preparation is easy, the manufacturing cost is lower, and the economic benefit is good; the utility model discloses an underground works is with fire prevention manger plate door simple structure, the laborsaving convenience of operation, non-professional personage's light opening and close of doing, use under the specially adapted emergency situation, have practical value and market prospect that are showing.

Optionally, in the first embodiment of the normally closed limiting structure 70, not shown in the drawings, the normally closed limiting structure 70 includes a door closer 71, and the door closer 71 is disposed on the non-openable side of the corresponding protective door panel 10 and is connected between the protective door panel 10 and the door stack 20 on the corresponding side, so as to enable the protective door panel 10 to keep normally closed and only open the door in one direction toward the emergency escape direction. In this alternative, the door closer 71 adopts a conventional device for keeping the door in a daily closed state and can only open the door in one direction towards a specific side, and the material is simple and easy to implement.

Alternatively, a second embodiment of the normally closed check structure 70, as shown in fig. 8 and 9, the normally closed check structure 70 includes a door closer 71 and a resistance spring 72. The door closer 71 is disposed on the non-openable side of the corresponding security door panel 10, and is connected between the security door panel 10 and the door pillar 20 on the corresponding side, so as to keep the security door panel 10 normally closed and only open the door in one direction in the emergency escape direction. The resistance spring 72 has both ends connected to the door closer 71 and the door stack 20, respectively, for pulling the security door panel 10 to be automatically returned. During operation, when the protective door panel 10 is stressed to be opened, the extrusion door closer 71 deforms, so that the door closer 71 stretches the resistance spring 72, after the acting force on the protective door panel 10 disappears, the door closer 71 automatically returns by means of self structure setting, and simultaneously returns under the contraction action of the resistance spring 72, so that the protective door panel 10 is ensured to stably return, and the normally closed limiting structure 70 is simple in material taking and easy to implement.

Alternatively, in a third embodiment of the normally closed position limiting structure 70, not shown, the normally closed position limiting structure 70 includes a coil spring mounted on the door shaft between the security door panel 10 and the door stack 20 on the corresponding side, and a limiting block for limiting the opening of the security door panel 10 in the direction opposite to the emergency escape direction. The limiting block is arranged on the door opening side of the protective door plate 10 and abuts against the protective door plate 10 on the corresponding side. The limiting strips at the two ends of the coil spring respectively support against the door stack 20 and the unopened side of the security door panel 10, so that the security door panel 10 keeps normally closed. In operation, when the door opening side of the security door panel 10 is stressed, the coil spring on the back side of the security door panel is pressed relatively to the door stack 20 in cooperation with the door stack so as to open the door; after the effort of the side of opening the door of protection door plant 10 disappeared, the effort of accumulation when the coil spring release opened the door promotes protection door plant 10 return, and protection door plant 10 because its stopper that the side of opening the door set up block the effect, make protection door plant 10 can not open the door towards one side that the stopper set up to the unilateral that realizes protection door plant 10 opens the door, normally closed limit structure 70 draws materials simply, sets up easily.

Optionally, a fourth embodiment of the normally closed stop structure 70, not shown, the normally closed stop structure 70 comprises a spring and a stop. The limiting block is arranged on the door opening side of the protective door plate 10 and abuts against the protective door plate 10 on the corresponding side. The spring is arranged on the side of the security door panel 10 which can not be opened, and two ends of the spring are respectively connected with the door pillar 20 and the side of the security door panel 10 which can not be opened, so as to keep the security door panel 10 normally closed. When the protective door plate 10 works, when the door opening side of the protective door plate is stressed, the spring arranged on the back side of the protective door plate is pressed to open the door; after the effort of the side of opening the door of protection door plant 10 disappeared, the effort of saving when the spring release opened the door promotes protection door plant 10 return, and protection door plant 10 because its stopper that the side set up that opens the door stops the effect, makes protection door plant 10 can not open the door towards one side that the stopper set up to the unilateral that realizes protection door plant 10 opens the door, and normally closed limit structure 70 draws materials simply, sets up easily.

In this alternative, the normally closed position limiting structure 70 according to the first, second, third and fourth embodiments of the present invention, the normally closed position limiting structure 70 not only has the function of automatically closing the opened door, but also needs to open the guard door panel 10 under the action of a certain pushing force, so as to realize that the guard door panel 10 is in the normally closed state, and the guard door panel 10 can bear a certain water pressure under the closed condition. The protective door plate 10 needs certain manpower to be pushed away along the advancing direction of people under the emergency condition, a bolt does not need to be pulled away or the door is not needed to be unlocked, and the requirements of initial water retaining and fire emergency evacuation can be met. Preferably, the initial resistance of the normally closed position limiting structure 70 should be greater than the water pressure acting on the security door panel 10 before the emergency water guard 30 falls down.

Optionally, as shown in fig. 4 to fig. 7, a concave extending installation cavity 101 is provided at the bottom end of the guard door panel 10, and an external water inlet hole communicated with the installation cavity 101 is provided on the bearing surface 102 on the opening side of the guard door panel 10. The emergency water retaining device 30 comprises a water retaining box 31 which is arranged in the installation cavity 101 in a vertically sliding manner, a pull ring 32 and a lock nose 33 of a lock bead lock which are connected to the water retaining box 31, and a lock bead lock catch 34 connected to the inside of the protective door panel 10. The water retaining box 31 is hollow box-shaped and is connected in the protective door plate 10 through the matching of the lock nose 33 of the lock bead lock and the lock catch 34 of the lock bead lock, and the water inlet surface of the water retaining box 31 close to the bearing surface 102 of the protective door plate 10 is provided with an inner water inlet hole for the water body overflowed from the outer water inlet hole to enter the water retaining box 31 for temporary storage. The pull ring 32 extends outwards from the bearing surface 102 of the guard door panel 10 and is used for pulling the water baffle box 31 to move upwards under the action of external force. In a daily state, the water retaining box 31 is accommodated in the inner cavity of the protective door plate 10 through the clamping fit of the lock nose 33 of the lock bead lock and the lock catch 34 of the lock bead lock; when a flood disaster occurs, external flood flows through the outer water inlet hole formed in the bearing surface 102 of the protective door plate 10 and the inner water inlet hole formed in the water inlet surface of the water retaining box 31 in sequence and enters the water retaining box 31, and when the weight of the water retaining box 31 and the water body contained therein reaches a preset weight value, the lock nose 33 of the water retaining box 31 is separated from the lock catch 34 of the ball latch lock under the action of gravity, so that the water retaining box 31 falls and is inserted into the installation slot 401 below.

In this alternative, as shown in fig. 5, an inward concave receiving groove is provided on the outer surface of the latch lock catch 34, and the latch lock catch 34 is made of an elastic material, when the water blocking tank 31 is forced to move up, the latch lock nose 33 thereon deforms by squeezing the receiving groove, and then is inserted into the receiving groove, thereby realizing the connection between the latch lock nose 33 and the latch lock catch 34; similarly, when the total weight of the water baffle 31 reaches a preset value, the lock nose 33 of the lock bead lock is pulled to slide out of the accommodating groove of the lock catch 34 of the lock bead lock, so that the water baffle 31 automatically falls.

Furthermore, a drain hole for the stored water to leak out is further arranged at the bottom of the water retaining box 31, and the drainage speed of the drain hole is smaller than the water inlet speed of the inner water inlet hole, so that the weight of the water stored in the water retaining box 31 is not smaller than the gravity required for separating the lock nose 33 of the latch bead lock from the lock catch 34 of the latch bead lock when flood occurs. The drain hole is used for enabling water stored in the water retaining tank 31 to be drained into the installation slot 401 after the flood disaster, so that the protective door panel 10 and the water retaining tank 31 can be restored to a normal working state. The bottom of the installation slot 401 is further communicated with a drain pipe 50 for discharging the water leaking from the water retaining tank 31 to the outside out of the installation slot 401. Further, as shown in fig. 5, two sliding grooves 103 which are arranged side by side at intervals and extend in the height direction are further formed in the bearing surface 102 of the protective door plate 10, the pull ring 32 is in a shape of a notch ring, and two notched ends of the pull ring are respectively inserted into the two sliding grooves 103 and then connected with the water inlet surface of the water retaining box 31. In actual design, the length of the chute 103 is designed according to the height and the lowering depth of the water baffle box 31.

In this alternative, as shown in fig. 5 and 7, the lock nose 33 of the latch bead lock is connected to the top of the water blocking box 31, and the lock catch 34 of the latch bead lock is connected to the protective door panel 10 above the lock nose 33 of the latch bead lock, so that after the water blocking box 31 moves upwards, the lock nose 33 of the latch bead lock can be easily inserted upwards into the lock catch 34 of the latch bead lock above. And the lock nose 33 and the lock catch 34 of the lock catch form the lock catch. The quantity of lock is the multiunit, and multiunit lock sets up along the width direction of manger plate 31 interval in proper order to guarantee daily work, manger plate 31 can be stably adducted in protection door board 10. In this alternative, the water retaining box 31 adopts the moderate steel case of weight or plastic case to do not influence the normal opening and shutting of guard gate board 10, and make things convenient for bare-handed lifting the water retaining box 31 of transferring to reset, so that clean up work after the calamity, or personnel under emergency can bare-handed lifting the water retaining box 31 when current reset, easy and simple to handle.

Alternatively, as shown in fig. 6 and 7, the fire-proof watertight door for underground works further includes a soft groove sealing plate 60 for sealing the installation slot 401 when the watertight box 31 is received in the guard door panel 10. The two sides of the soft slot sealing plate 60 are connected to the terraces 40 on the two sides of the installation slot 401, and the soft slot sealing plate 60 is provided with an easy-folding structure 601 extending along the length direction thereof, so that the water blocking tank 31 is inserted into the installation slot 401 when the water blocking tank 31 falls, and the two disconnected ends of the soft slot sealing plate 60 are respectively tightly attached to the water blocking tank 31 for sealing.

In this alternative, in the first embodiment of the easy-to-break structure 601, the easy-to-break structure 601 includes the fracture that is located the center of the width direction of the soft board 60 of the seal groove and set up along the length direction of the soft board 60 of the seal groove at intervals in proper order, the fracture runs through the soft board 60 of the seal groove along the thickness direction of the soft board 60 of the seal groove, because the fracture effect that sets up at intervals in proper order on the soft board 60 of the seal groove reduces the structural strength of the soft board 60 of the seal groove at this place, make the soft board 60 of the seal groove break off at the easy-to-break structure 601 when the atress.

In this alternative, the second embodiment of the easy-to-break structure 601, the easy-to-break structure 601 includes the notch seam that is located the center of the width direction of the soft board 60 and extends along the length direction of the soft board 60, the notch seam is formed by the concave processing of the lower surface of the soft board 60, the lower surface of the soft board 60 is provided with the notch seam due to the concave processing, the structural strength of the soft board 60 at this position is reduced, and the easy-to-break structure 601 is disconnected when the soft board 60 is stressed.

In the first and second embodiments of this alternative, the mounting slot 401 is sized to match the manger box 31; the thickness of the soft groove sealing board 60 is 2-4 mm, the soft groove sealing board 60 is a rubber soft board, and the two sides of the soft groove sealing board are adhered to the tops of the two sides of the installation slot 401 through strong glue so as to seal the installation slot 401 under normal conditions, and further prevent foreign matters from filling the installation slot 401.

Alternatively, as shown in fig. 3 and 4, the protective door panel 10 includes a skeleton layer 11 at the center, waterproof layers 12 adhered to front and rear surfaces of the skeleton layer 11 for waterproofing, insulating layers 13 laid on the waterproof layers 12 for insulating heat, and fire-proof layers 14 laid on the insulating layers 13 for fire-proofing. The framework layer 11 extends downwards to the middle lower part of the protective door panel 10, so that a mounting cavity 101 is formed below the framework layer, and inner layer covers 15 adhered to the inner side wall of the waterproof layer 12 are arranged on the front wall surface and the rear wall surface of the mounting cavity 101. The utility model discloses this structure setting of guard gate board 10 makes it have fire prevention, waterproof function simultaneously, and overall structure is simple, easy preparation to whole cost is low. In the alternative, the thickness of the guard door plate 10 is 10-20 cm.

Optionally, as shown in fig. 1 and fig. 2, the fireproof and watertight door for underground engineering further comprises a watertight strip 80 extending along the peripheral edge of the guard gate panel 10, the watertight strip 80 is used for expanding after absorbing water to seal the gap between the guard gate panel 10 and the periphery and between the two guard gate panels 10, and the watertight strip 80 is also used for contracting after losing water.

Optionally, as shown in fig. 6, the fireproof and watertight door for underground engineering further includes an expansion sealing strip 90 laid on the bottom surface of the installation slot 401 in a direction extending along the length of the bottom surface of the installation slot 401. The swell seal tape 90 is used to swell by absorbing water to seal the gap between the bottom end of the watertight box 31 and the bottom surface of the mounting socket 401. In this alternative, as shown in fig. 6, when the watertight box 31 is lowered against the expansion seal strip 90, the expansion seal strip 90 bulges on both sides of the watertight box 31, thereby providing a watertight effect.

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. The utility model provides an underground works is with fire prevention manger plate door which characterized in that includes:

the emergency escape passage comprises two protective door panels (10) which are arranged side by side and are abutted against each other along the width direction of the emergency escape passage and have fireproof and waterproof functions, the two protective door panels (10) are respectively and rotatably connected with door stacks (20) on two sides of the emergency escape passage, and a normally closed limiting structure (70) is arranged between each protective door panel (10) and the door stack (20) on the corresponding side, so that the protective door panels (10) are in a normally closed state and can only open a door in a one-way direction towards the emergency escape direction;

each be equipped with emergent water retaining device (30) in protective door board (10) lower extreme, correspond in floor (40) of protective door board (10) bottom below and be equipped with and be used for the holding installation slot (401) of emergent water retaining device (30), two open the door orientation in protective door board (10) and come the flow direction unanimous protective door board (10) lower extreme is intake, so that in it emergent water retaining device (30) are automatic when the water weight of depositing after intaking reaches and establishes the quantitative value and fall and insert the below installation slot (401) in, in order to restrict protective door board (10) are opened by the water effort, and emergent water retaining device (30) still are used for shifting up income under the human action in protective door board (10).

2. The fire-proof and water-retaining door for underground works according to claim 1,

the normally closed limiting structure (70) comprises a door closer (71), the door closer (71) is arranged on the side, which cannot be opened, of the corresponding protective door panel (10) and is connected between the protective door panel (10) and the door stack (20) on the corresponding side, so that the protective door panel (10) is kept normally closed and can be opened only in one direction towards the emergency escape direction; or alternatively

The normally closed limiting structure (70) comprises a door closer (71) and a resistance spring (72); the door closer (71) is arranged on the side, which cannot be opened, of the corresponding protective door panel (10) and is connected between the protective door panel (10) and the door stack (20) on the corresponding side, so that the protective door panel (10) is kept normally closed and can be opened only in one direction towards the emergency escape direction; two ends of the resistance spring (72) are respectively connected with the door closer (71) and the door stack (20) so as to be used for pulling the protective door plate (10) to automatically return.

3. The fire prevention and water stop door for underground works according to claim 1,

the normally closed limiting structure (70) comprises a coil spring arranged on a door shaft between the protective door plate (10) and the door stack (20) on the corresponding side, and a limiting block used for limiting the protective door plate (10) to open towards the direction opposite to the emergency escape direction; the limiting blocks are arranged on the door opening side of the protective door plate (10) and abut against the protective door plate (10) on the corresponding side; the limiting strips at the two ends of the coil spring respectively prop against the door stack (20) and the side, which cannot be opened, of the protective door panel (10) so as to keep the protective door panel (10) normally closed; or

The normally closed limiting structure (70) comprises a spring and a limiting block; the limiting blocks are arranged on the door opening side of the protective door plate (10) and abut against the protective door plate (10) on the corresponding side; the spring set up in the side that can not open the door of guard gate board (10), and both ends are connected respectively door buttress (20) with the side that can not open the door of guard gate board (10) for make guard gate board (10) keep the normal close.

4. The fire-proof and water-retaining door for underground works according to claim 1,

the bottom end of the protective door plate (10) is provided with an inwards concave extending installation cavity (101), and a bearing surface (102) on the door opening side of the protective door plate (10) is provided with an outer water inlet hole communicated with the installation cavity (101);

the emergency water retaining device (30) comprises a water retaining box (31) which is arranged in the installation cavity (101) in a vertically sliding mode, a pull ring (32) and a latch bead lock locking nose (33) which are connected to the water retaining box (31), and a latch bead lock latch (34) which is connected to the inside of the protective door panel (10);

the water retaining box (31) is in a hollow box shape and is connected into the protective door panel (10) through the matching of the lock nose (33) of the lock bead lock and the lock catch (34) of the lock bead lock, and an inner water inlet hole for water overflowing from the outer water inlet hole to enter the water retaining box (31) and temporarily stored in the water retaining box is formed in the water inlet surface, close to the bearing surface (102) of the protective door panel (10), of the water retaining box (31);

the pull ring (32) extends out of a bearing surface (102) of the guard door plate (10) to be used for pulling the water retaining box (31) to move upwards under the action of external force.

5. The fire prevention and water stop door for underground works according to claim 4,

a water drainage hole for the stored water to leak is further formed in the bottom of the water retaining box (31), the drainage speed of the water drainage hole is smaller than the water inlet speed of the inner water inlet hole, so that the weight of the water stored in the water retaining box (31) is not smaller than the gravity required for separating the lock nose (33) of the latch lock from the lock catch (34) of the latch lock when flood occurs;

the bottom of the installation slot (401) is also communicated with a drain pipe (50) for discharging the water body leaking out of the water retaining tank (31) out of the installation slot (401);

the protective door plate (10) is characterized in that the bearing surface (102) is further provided with two sliding grooves (103) which are arranged side by side at intervals and extend along the height direction, the pull ring (32) is in a gap ring shape, and two gap ends of the pull ring are respectively inserted into the two sliding grooves (103) and then connected with the water inlet surface of the water retaining box (31).

6. The fire prevention and water stop door for underground works according to claim 4,

the latch bead lock nose (33) is connected to the top of the water retaining box (31), the latch bead lock catch (34) is connected to the protective door plate (10) above the latch bead lock nose (33), and the latch bead lock nose (33) and the latch bead lock catch (34) are combined to form a latch bead lock;

the number of the lock balls is multiple, and the lock balls are arranged at intervals along the width direction of the water retaining box (31).

7. The fire-proof and water-retaining door for underground works according to claim 4,

the fireproof water retaining door for the underground engineering further comprises a groove sealing soft plate (60) used for sealing the installation slot (401) when the water retaining box (31) is accommodated in the protective door plate (10);

the two sides of the soft groove sealing plate (60) are connected to the two sides of the installation slot (401) on the terrace (40), and the soft groove sealing plate (60) is provided with an easy-folding structure (601) extending along the length direction of the soft groove sealing plate, so that the water baffle box (31) is disconnected under stress when falling, the water baffle box (31) is inserted into the installation slot (401), and two disconnected ends of the soft groove sealing plate (60) are respectively tightly attached to the water baffle box (31) in a sealing mode.

8. The fire prevention and water stop door for underground works according to claim 7,

the easy-to-break structure (601) comprises fractures which are positioned at the center of the groove sealing soft board (60) in the width direction and are sequentially arranged at intervals along the length direction of the groove sealing soft board (60), and the fractures penetrate through the groove sealing soft board (60) along the thickness direction of the groove sealing soft board (60); or

The easily roll over structure (601) is including being located seal groove soft board (60) width direction's center and follow seal the incision seam that groove soft board (60) length direction extended, the incision seam by the lower surface indent processing of sealing groove soft board (60) forms.

9. The fire prevention and water stop door for underground works according to claim 4,

the protective door plate (10) comprises a framework layer (11) positioned in the center, waterproof layers (12) which are pasted on the front surface and the rear surface of the framework layer (11) and used for preventing water, heat insulation layers (13) which are laid on the waterproof layers (12) and used for insulating heat, and fireproof layers (14) which are laid on the heat insulation layers (13) and used for preventing fire;

the framework layer (11) extends downwards to the middle lower part of the protective door panel (10) to form the mounting cavity (101) below, and inner layer covers (15) adhered to the inner side walls of the waterproof layer (12) are arranged on the front wall surface and the rear wall surface of the mounting cavity (101).

10. The fire prevention and water stop door for underground works according to claim 4,

the fireproof water retaining door for the underground engineering further comprises a water retaining strip (80) which extends along the peripheral edge of the protective door panel (10), the water retaining strip (80) is used for expanding after absorbing water so as to seal a gap between the protective door panel (10) and the periphery and between two protective door panels (10), and the water retaining strip (80) is also used for contracting after losing water;

the fireproof water retaining door for the underground engineering further comprises an expansion sealing strip (90) which extends along the length direction of the bottom of the installation slot (401) and is laid on the bottom surface of the installation slot (401); the expansion sealing strip (90) is used for absorbing water and expanding to seal a gap between the bottom end of the water retaining box (31) and the bottom surface of the installation slot (401).

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