CN113309453A

CN113309453A - Humidifying flame-retardant fireproof door

Info

Publication number: CN113309453A
Application number: CN202110622771.4A
Authority: CN
Inventors: 崔显龙; 黄宇
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-06-04
Filing date: 2021-06-04
Publication date: 2021-08-27

Abstract

The invention relates to the field of fire safety, in particular to a humidifying flame-retardant fireproof door, which comprises a door body, a water spraying control mechanism, a flame-retardant mechanism and a locking mechanism, wherein when a fire condition occurs near the door body, the flame-retardant mechanism is heated to transfer heat to expandable graphite in a storage box, the expandable graphite is heated to expand and is rapidly decomposed to generate a large amount of gas, a piston plate is expanded by the expandable graphite at the bottom of the piston plate to move upwards to drive the water spraying control mechanism to enable a valve plate not to seal a water spraying pipe any more, water at the top of the piston plate is extruded by the piston plate to pass through the water spraying pipe and is sprayed out from a spray head, the sprayed water mist can slow down the fire spread near the fireproof door, meanwhile, the temperature of the door body is reduced, the flame-retardant effect is improved, the graphite which has certain expansion in the storage box is sprayed out from the water spraying pipe to expand the expandable graphite rapidly, partial flame is suffocated, and the generated graphite expanded material covers the surface of combustible substances near the door body, the contact between the thermal energy radiation and the oxygen is isolated.

Description

Humidifying flame-retardant fireproof door

Technical Field

The invention relates to the field of fire safety, in particular to a humidifying flame-retardant fireproof door.

Background

Even if the fireproof door is a heat insulation fireproof door, the fireproof integrity and the heat insulation performance can be simultaneously met within a certain time, and meanwhile, the fireproof door also needs to have smoke prevention performance when being closed, so that the sealing performance is high after the fireproof door is closed; in general, a fire door is installed in a firewall, a stairwell entrance, or a tube well opening, and plays an important role in preventing fire and smoke and reducing loss.

However, when a fire occurs, if the fire is great or the duration is long, the stability of the ordinary wooden fire door cannot be maintained for a long time, and the effect of preventing the fire from spreading is also weakened quickly, so that a fire-retardant fire door capable of maintaining the integrity and the fire-retardant effect of the door body for a long time is urgently needed.

Disclosure of Invention

Aiming at the problems in the prior art, the invention provides a humidifying flame-retardant fireproof door.

The technical scheme adopted by the invention for solving the technical problems is as follows: a humidifying flame-retardant fireproof door comprises a door body, a water spraying control mechanism and a flame-retardant mechanism, wherein a plurality of storage boxes for storing water and expandable graphite are arranged in the door body, a first cavity is arranged in the door body and is arranged at the top of the storage box, the water spraying control mechanism is arranged in the first cavity, a first groove body is arranged on one side of the door body and is arranged on one side of the storage box, the first groove body is communicated with the first cavity, the flame-retardant mechanism is arranged in the first groove body and the first cavity, a water spraying pipe is fixedly arranged on one side of the top of the storage box and penetrates through the door body and extends out of one side of the door body, a water adding pipe is fixedly arranged on the other side of the storage box and penetrates through the door body and extends out of the other side of the door body, and a cover for sealing is arranged at the tail end of the water adding pipe, store one side bottom of box and be equipped with first opening, fixed mounting has first stopper on the inside wall of storage box, the top of first stopper is equipped with the piston board, the piston board is connected with the inside wall sliding seal who stores the box, the top of piston board is equipped with first spring, the mausoleum of first spring is contradicted with the top of piston board and the interior roof of storing the box respectively and is connected, the bottom of piston board is equipped with expandable graphite in the storage box, the top of piston board is equipped with water in the storage box. When the condition of a fire takes place near the door body, the temperature risees, fire-retardant mechanism is heated to with the heat transfer expandable graphite in the storage box, expandable graphite is heated the thermal expansion and decomposes rapidly, produces a large amount of gas, the piston board receives the expandable graphite inflation of its bottom and produces gaseous pressure rebound and extrudees first spring and makes its shrink, the piston board drives water spray control mechanism when upwards moving and makes the interior valve plate of spray pipe no longer seal up the spray pipe, the water at piston board top receives the extrusion of piston board in the storage box and spouts through the spray pipe and the shower nozzle from the spray pipe, and spun water smoke can slow down near the intensity of a fire of preventing fire and stretch, cools down the door body simultaneously, increases the time that the door body maintained stability, has promoted fire-retardant effect.

Specifically, the water spray control mechanism comprises a first connecting rod, a first ejector block, a rack, a first gear, a first rotating shaft and a valve plate, the first connecting rod is a bent rod, one end of the first connecting rod is fixedly connected with the top of the piston plate, the other end of the first connecting rod penetrates through the top wall of the storage box and extends into the first cavity, the other end of the first connecting rod is fixedly connected with one end of the first ejector rod, a second groove body with a wedge-shaped cross section is arranged in the first ejector block, the other end of the first ejector rod is hemispherical, the other end of the first ejector rod is in abutting connection with the second groove body in the first ejector block, the first ejector block is fixedly installed at the top of the rack, a second connecting rod penetrates through the length direction of the rack, the second connecting rod is in sliding connection with the rack, a third spring is sleeved on the second connecting rod, and the two ends of the third spring are respectively fixedly connected with the side wall of the first cavity and the side wall of the storage box, the first gear and the rack are wanted to be kneaded, the middle of the bottom end of the rack is fixedly connected with one end of a first rotating shaft, the other end of the first rotating shaft penetrates through the side wall of the water spraying pipe and is fixedly connected with the side face of the valve plate, the first rotating shaft is in sealed rotating connection with the water spraying pipe, the valve plate is arranged in the water spraying pipe, and the valve plate is in sealed movable connection with the inner wall of the water spraying pipe. When a fire occurs near the door body, the temperature rises, the expanded graphite expands by heat and is rapidly decomposed to generate a large amount of gas, the piston plate is expanded by the expandable graphite at the bottom of the piston plate and moves upwards under the pressure of the generated gas to extrude the first spring to contract, the piston plate drives the first connecting rod to move upwards when moving upwards, the first ejector rod moves upwards and does not push against the first ejector block any more, the rack moves rightwards along the second connecting rod under the action of the elastic force of the third spring, the rack drives the first gear meshed with the rack to rotate, the first rotating shaft rotates and drives the valve plate to not seal the water spray pipe any more, water at the top of the piston plate in the storage box is extruded by the piston plate to pass through the water spray pipe and is sprayed out from the spray head on the water spray pipe, the sprayed water mist can slow down the spread of the fire near the fire door, meanwhile, the temperature of the door body is reduced, and the time for maintaining the stability of the door body is increased, the flame retardant effect is improved.

Specifically, the flame-retardant mechanism comprises a heat-conducting block, a third connecting rod, a first top plate, a second limiting block and a locking mechanism, the heat-conducting block comprises a metal block, a sliding plate and a material spraying pipe, one side of the storage box is provided with a sliding groove, the bottom of the sliding groove is communicated with a first opening, the sliding groove is connected with the sliding plate in a sliding manner, one side of the sliding plate is fixedly connected with the metal block and the material spraying pipe, the metal block is arranged at the top of the material spraying pipe and corresponds to the first opening, the sliding plate is provided with a second opening, the second opening is communicated with one end of the material spraying pipe, the size and shape of the second opening correspond to the first opening, one end of the metal block and one end of the material spraying pipe both extend out of the first groove body, the metal block is fixedly connected with one end of the third connecting rod, and the other end of the third connecting rod is fixedly connected with the top of the first top plate, the second limiting block is fixedly installed on the side wall of the first cavity and abutted against the bottom edge of the first top plate, and the locking mechanism is installed on the side wall of the first cavity. When a fire occurs near the door body, the temperature rises, the metal block is heated by the temperature of the nearby fire and transmits the temperature to the expandable graphite in the storage box through the first opening, the expandable graphite is heated to expand and is rapidly decomposed to generate a large amount of gas, the piston plate is expanded by the expandable graphite at the bottom of the piston plate and moves upwards under the pressure of the generated gas to extrude the first spring to contract, the piston plate drives the first connecting rod to move upwards when moving upwards, when water in the storage box is discharged and the piston plate moves to the top of the inner cavity of the storage box, the first connecting rod is propped against the first top plate, the first top plate moves upwards and is clamped by the locking mechanism and cannot move downwards, the first top plate drives the heat-conducting block to move upwards through the third connecting rod when moving upwards, the sliding plate moves upwards along the sliding groove, the position of the material spraying pipe moves upwards along with the first connecting rod, and the second opening is communicated with the first opening, the graphite which is expanded to a certain extent in the storage box is sprayed to a fire source near the door body from the material spraying pipe through the first opening and the second opening under the wrapping of gas generated by the graphite, and part of the graphite is attached to the surface of the door body, meanwhile, the piston plate moves downwards under the action of the elastic force of the first spring until the piston plate is abutted against the first limiting block, the expandable graphite expands rapidly to extinguish part of flame, meanwhile, the generated graphite expanded material covers the surface of combustible near the door body, the contact between heat energy radiation and oxygen is isolated, acid radicals in an interlayer of the expandable graphite are released during expansion, the carbonization of the combustible near the door body is promoted, and therefore, a good effect is achieved through multiple flame-retardant modes; move down until contradicting with first stopper when the piston plate, first connecting rod drives the second cell body of the first kicking block of one end conflict of first ejector pin downwards, first kicking block moves left and drives the rack and move left, the rack drives rather than the first gear revolve of meshing, first pivot is rotated and is driven the sealed spray pipe of valve plate, treats the intensity of a fire and is extinguished completely the back, opens the lid of filler pipe, stores the box through the filler pipe case and adds water, can be with equipment used repeatedly, has saved the resource, accords with green's advocation.

Specifically, locking mechanical system includes locking piece, second spring, fourth connecting rod and locking switch, be equipped with the third cell body on the lateral wall of first cavity, the second spring sets up in the third cell body, the both ends of second spring are contradicted with the third cell body and locking piece respectively and are connected, the cross-section of locking piece is triangle-shaped, the one end of locking piece and the one end fixed connection of fourth connecting rod, the other end of fourth connecting rod run through the door body and with locking switch fixed connection. When the first top plate moves upwards to the top of the first cavity, the side face of the first top plate extrudes the locking block, the locking block is extruded to shrink into the third groove body, when the first top plate reaches the top of the locking block, the locking block extends out of the third groove body under the action of the elastic force of the second spring, the first top plate is clamped by the locking block, and the position of the material spraying pipe is aligned to the first opening and the second opening is continuously communicated with the first opening through the connecting action of the third connecting rod; when the fire is extinguished and the door body still keeps intact, the remaining expandable graphite in the storage box is cleared away and the unused expandable graphite is added through the material spraying pipe, the locking switch is pulled outwards, the locking block is driven to shrink into the third groove body through the fourth connecting rod, the first top plate and the heat conducting block reset under the action of gravity, the first opening is sealed by the metal block again and is matched with the metal block, the repeated use is realized, the resource is saved, and the advocation of green environmental protection is met.

The invention has the beneficial effects that:

(1) when a fire occurs near a door body, the temperature rises, the expandable graphite expands under heat and is rapidly decomposed to generate a large amount of gas, the piston plate expands under the expandable graphite at the bottom and the pressure of the generated gas moves upwards and extrudes the first spring to contract, the piston plate drives the first connecting rod to move upwards when moving upwards, the first ejector rod moves upwards and does not push against the first ejector block any more, the rack moves rightwards along the second connecting rod under the action of the elasticity of the third spring, the rack drives the first gear meshed with the rack to rotate, the first rotating shaft rotates and drives the valve plate to not seal the water spray pipe any more, water at the top of the piston plate in the storage box is extruded by the piston plate to pass through the water spray pipe and is sprayed out from a spray head on the water spray pipe, and sprayed water mist can slow down the fire spread near the fire door, meanwhile, the door body is cooled, so that the time for maintaining the stability of the door body is prolonged, and the flame-retardant effect is improved.

(2) When a fire condition occurs near a door body, the temperature rises, the metal block is heated by the temperature of the nearby fire condition and transmits the temperature to the expandable graphite in the storage box through the first opening, the expandable graphite is heated to expand and is rapidly decomposed to generate a large amount of gas, the piston plate is expanded by the expandable graphite at the bottom of the piston plate and moves upwards under the pressure of the generated gas to extrude the first spring to contract, the piston plate drives the first connecting rod to move upwards when moving upwards, when water in the storage box is discharged and the piston plate moves to the top of the inner cavity of the storage box, the first connecting rod pushes the first top plate, the first top plate moves upwards and is clamped by the locking mechanism and cannot move downwards, and the first top plate drives the heat conducting block to move upwards through the third connecting rod when moving upwards, the sliding plate moves upwards along the sliding groove, the position of the material spraying pipe moves upwards along with the sliding plate, the second opening is communicated with the first opening, the graphite which is expanded to a certain extent in the storage box is coated by the gas generated by the graphite and is sprayed out to a fire source near the door body through the first opening and the second opening, and part of the graphite is attached to the surface of the door body, meanwhile, the piston plate moves downwards under the action of the elastic force of the first spring until the piston plate is abutted against the first limiting block, the expandable graphite expands rapidly, part of flame is extinguished, meanwhile, the generated expanded graphite material covers the surface of combustible near the door body, contact between heat energy radiation and oxygen is isolated, acid radicals in an interlayer of the expandable graphite are released during expansion, carbonization of the combustible near the door body is promoted, and good effect is achieved through multiple flame-retardant modes.

(3) According to the humidifying flame-retardant fireproof door, the flame-retardant mechanism, the locking mechanism and the water spraying control mechanism are used in a matched mode, after the fire is completely extinguished, the cover of the water adding pipe is opened, water is added into the storage box through the water adding pipe box, the residual expandable graphite in the storage box is removed, the unused expandable graphite is added through the water spraying pipe, the locking switch is pulled outwards, the locking block is driven to shrink into the third groove body through the fourth connecting rod, the first top plate and the heat conducting block reset under the action of gravity, the first opening is sealed by the metal block again and used with the metal block, the humidifying flame-retardant fireproof door can be used repeatedly, resources are saved, and the advocation of green and environment protection is met.

Drawings

The invention is further illustrated with reference to the following figures and examples.

Figure 1 is a schematic view of the overall structure of a wet fire-retardant fire door according to the present invention;

FIG. 2 is a schematic view of the internal structure shown in FIG. 1;

FIG. 3 is a schematic view of the internal structure of the storage case shown in FIG. 2;

FIG. 4 is a schematic view of the attachment of the fire retardant mechanism and the storage case shown in FIG. 3;

FIG. 5 is an enlarged view of portion A of FIG. 3;

FIG. 6 is an enlarged view of the portion B shown in FIG. 4;

fig. 7 is an enlarged view of the portion C shown in fig. 4.

In the figure: 1. a door body; 11. a first cavity; 111. a third tank body; 12. a first tank body; 2. a storage box; 21. a water spray pipe; 211. a spray head; 22. a water feeding pipe; 221. a cover; 23. a first opening; 24. a first stopper; 25. a piston plate; 26. a first spring; 27. a chute; 3. a water spray control mechanism; 31. a first link; 32. a first ejector rod; 33. a first top block; 331. a second tank body; 34. a rack; 341. a second link; 342. a third spring; 35. a first gear; 36. a first rotating shaft; 37. a valve plate; 4. a flame retardant mechanism; 41. a heat conducting block; 411. a metal block; 412. a sliding plate; 4121. a second opening; 413. a material spraying pipe; 42. a third link; 43. a first top plate; 44. a second limiting block; 45. a locking mechanism; 451. a locking block; 452. a second spring; 453. a fourth link; 454. and locking the switch.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.

As shown in fig. 1-7, the humidifying flame-retardant fireproof door of the invention comprises a door body 1, a water spray control mechanism 3 and a flame-retardant mechanism 4, wherein a plurality of storage boxes 2 for storing water and expandable graphite are arranged in the door body 1, a first cavity 11 is arranged in the door body 1, the first cavity 11 is arranged at the top of the storage boxes 2, the water spray control mechanism 3 is arranged in the first cavity 11, a first groove body 12 is arranged at one side of the door body 1, the first groove body 12 is arranged at one side of the storage boxes 2, the first groove body 12 is communicated with the first cavity, the flame-retardant mechanism 4 is arranged in the first groove body 12 and the first cavity 11, a water spray pipe 21 is fixedly arranged at one side of the top of the storage boxes 2, the water spray pipe 21 penetrates through the door body 1 and extends out from one side of the door body 1, a water adding pipe 22 is fixedly arranged at the other side of the storage boxes 2, the filler pipe 22 runs through the door body 1 and stretches out from the opposite side of the door body 1, the lid 221 that plays sealed effect is installed to the end of filler pipe 22, one side bottom of storing box 2 is equipped with first opening 23, fixed mounting has first stopper 24 on the inside wall of storing box 2, the top of first stopper 24 is equipped with piston plate 25, piston plate 25 is connected with the inside wall sliding seal who stores box 2, piston plate 25's top is equipped with first spring 26, first spring 26's mausoleum contradicts with piston plate 25's top and the interior roof of storing box 2 respectively and is connected, the bottom of storing box 2 interior piston plate 25 is equipped with expandable graphite, the top of storing box 2 interior piston plate 25 is equipped with water. When a fire occurs near the door body 1, the temperature rises, the flame retardant mechanism 4 is heated and transfers heat to the expandable graphite in the storage box 2, the expandable graphite expands when being heated and is rapidly decomposed to generate a large amount of gas, the piston plate 25 expands due to the expandable graphite at the bottom and moves upwards under the pressure of the generated gas to extrude the first spring 26 to contract, the piston plate 25 moves upwards to drive the water spray control mechanism 3 to enable the valve plate 37 in the water spray pipe 21 not to seal the water spray pipe 21, water on the top of the piston plate 25 in the storage box 2 is extruded by the piston plate 25 to pass through the water spray pipe 21 and is sprayed out from the spray head 211 on the water spray pipe 21, and the sprayed water mist can slow down the fire spread near the fire door body 1, and meanwhile, the temperature of the door body 1 is reduced, the time for maintaining the stability is increased, and the flame retardant effect is improved.

Specifically, the water spray control mechanism 3 includes a first connecting rod 31, a first ejector rod 32, a first top block 33, a rack 34, a first gear 35, a first rotating shaft 36 and a valve plate 37, the first connecting rod 31 is a bent rod, one end of the first connecting rod 31 is fixedly connected with the top of the piston plate 25, the other end of the first connecting rod 31 penetrates through the top wall of the storage box 2 and extends into the first cavity 11, the other end of the first connecting rod 31 is fixedly connected with one end of the first ejector rod 32, a second groove body 331 with a wedge-shaped cross section is arranged in the first top block 33, the other end of the first ejector rod 32 is hemispherical, the other end of the first ejector rod 32 is abutted against and connected with the second groove body 331 in the first top block 33, the first top block 33 is fixedly mounted at the top of the rack 34, a second connecting rod 341 is arranged in the length direction of the rack 34 in a penetrating manner, and the second connecting rod 341 is connected with the rack 34 in a sliding manner, the second connecting rod 341 is sleeved with a third spring 342, two ends of the third spring 342 are respectively and fixedly connected with the side wall of the first cavity 11 and the side wall of the storage box 2, the first gear 35 is engaged with the rack 34, the middle of the bottom end of the rack 34 is fixedly connected with one end of a first rotating shaft 36, the other end of the first rotating shaft 36 penetrates through the side wall of the spray pipe 21 and is fixedly connected with the side surface of a valve plate 37, the first rotating shaft 36 is rotatably connected with the spray pipe 21 in a sealing manner, the valve plate 37 is arranged in the spray pipe 21, and the valve plate 37 is movably connected with the inner wall of the spray pipe 21 in a sealing manner. When a fire occurs near the door body 1, the temperature rises, the expanded graphite expands by heat and is rapidly decomposed to generate a large amount of gas, the piston plate 25 is expanded by the expandable graphite at the bottom thereof and moves upwards under the pressure of the generated gas to press the first spring 26 to contract, the piston plate 25 moves upwards to drive the first connecting rod 31 to move upwards, the first ejector rod 32 moves upwards and no longer contacts the first ejector block 33, the rack 34 moves rightwards along the second connecting rod 341 under the action of the elastic force of the third spring 342, the rack 34 drives the first gear 35 engaged with the rack to rotate, the first rotating shaft 36 rotates and drives the valve plate 37 to no longer seal the water spray pipe 21, water at the top of the piston plate 25 in the storage box 2 is pressed by the piston plate 25 to pass through the water spray pipe 21 and is sprayed out from the spray nozzle 211 on the water spray pipe 21, and the sprayed water mist can slow down the spread of the fire nearby, meanwhile, the door body 1 is cooled, so that the time for maintaining the stability of the door body 1 is prolonged, and the flame retardant effect is improved.

Specifically, the flame retardant mechanism 4 includes a heat conducting block 41, a third connecting rod 42, a first top plate 43, a second limiting block 44 and a locking mechanism 45, the heat conducting block 41 includes a metal block 411, a sliding plate 412 and a spraying pipe 413, one side of the storage box 2 is provided with a sliding groove 27, the groove bottom of the sliding groove 27 is communicated with the first opening 23, the sliding groove 27 is slidably connected with the sliding plate 412, one side of the sliding plate 412 is fixedly connected with the metal block 411 and the spraying pipe 413, the metal block 411 is arranged at the top of the spraying pipe 413, the metal block 411 corresponds to the first opening 23, the sliding plate 412 is provided with a second opening 4121, the second opening 4121 is communicated with one end of the spraying pipe 413, the size and shape of the second opening 4121 correspond to the first opening 23, one end of the metal block 411 and one end of the spraying pipe 413 both extend out of the first groove body 12, and the metal block 411 is fixedly connected with one end of the third connecting rod 42, the other end of the third connecting rod 42 is fixedly connected with the top of the first top plate 43, the second limiting block 44 is fixedly mounted on the side wall of the first cavity 11, the second limiting block 44 abuts against the bottom edge of the first top plate 43, and the locking mechanism 45 is mounted on the side wall of the first cavity 11. When a fire occurs near the door body 1, the temperature rises, the metal block 411 is heated by the temperature of the nearby fire and transmits the temperature to the expandable graphite in the storage box 2 through the first opening 23, the expandable graphite expands when heated and rapidly decomposes to generate a large amount of gas, the piston plate 25 is expanded by the expandable graphite at the bottom thereof and moves upward under the pressure of the generated gas and presses the first spring 26 to contract, the piston plate 25 moves upward to drive the first connecting rod 31 to move upward, when the water in the storage box 2 is discharged and the piston plate 25 moves to the top of the inner cavity of the storage box 2, the first connecting rod 31 contacts the first top plate 43, the first top plate 43 moves upward and is blocked and cannot move downward by the locking mechanism 45, the heat conduction block 41 is driven by the third connecting rod 42 to move upward when the first top plate 43 moves upward, the sliding plate 412 moves upward along the sliding groove 27, the position of the spraying pipe 413 moves upwards along with the position of the spraying pipe 413, the second opening 4121 is communicated with the first opening 23, certain expanded graphite in the storage box 2 is sprayed out from the spraying pipe 413 to a fire source near the door body 1 through the first opening 23 and the second opening 4121 under the wrapping of gas generated by the graphite, and part of the graphite is attached to the surface of the door body 1, meanwhile, the piston plate 25 moves downwards under the elastic action of the first spring 26 until the piston plate collides with the first limiting block 24, the expandable graphite expands rapidly to extinguish partial flame, meanwhile, the generated graphite expanding material covers the surface of combustible near the door body 1, the contact of heat energy radiation and oxygen is isolated, acid radicals in the interlayer are released during expansion, the carbonization of the combustible near the door body is promoted, and therefore, a good effect is achieved through various flame-retardant modes; when piston plate 25 moves down until contradicting with first stopper 24, first connecting rod 31 drives the second cell body 331 of the one end conflict first kicking block 33 of first ejector pin 32 downwards, first kicking block 33 moves left and drives rack 34 and move left, rack 34 drives and rotates rather than the first gear 35 of meshing, first pivot 36 rotates and drives valve plate 37 sealed spray pipe 21, treats that the intensity of a fire is extinguished completely, opens the lid 221 of filler pipe 22, stores box 2 through filler pipe 22 case and adds water, can use equipment repeatedly, has saved the resource, accords with green's advocation.

Specifically, the locking mechanism 45 includes a locking block 451, a second spring 452, a fourth link 453 and a locking switch 454, the side wall of the first cavity 11 is provided with a third groove 111, the second spring 452 is arranged in the third groove 111, two ends of the second spring 452 are respectively connected with the third groove 111 and the locking block 451 in an abutting manner, the cross section of the locking block 451 is triangular, one end of the locking block 451 is fixedly connected with one end of the fourth link 453, and the other end of the fourth link 453 penetrates through the door body 1 and is fixedly connected with the locking switch 454. When the first top plate 43 moves upwards to the top of the first cavity 11, the side surface of the first top plate 43 presses the locking block 451, the locking block 451 is pressed to contract towards the inside of the third groove body 111, when the first top plate 43 reaches the top of the locking block 451, the locking block 451 extends out of the third groove body 111 under the action of the elastic force of the second spring 452, the first top plate 43 is clamped by the locking block 451, and the position of the spray pipe 413 is aligned with the first opening 23 and the second opening 4121 is continuously communicated with the first opening 23 through the connecting action of the third connecting rod 42; when the fire is extinguished and the door body 1 is still kept complete, the remaining expandable graphite in the storage box 2 is removed, the unused expandable graphite is added through the material spraying pipe 413, the locking switch 454 is pulled outwards, the locking block 451 is driven by the fourth connecting rod 453 to shrink into the third groove body 111, the first top plate 43 and the heat conducting block 41 are reset under the action of gravity, the first opening 23 is sealed by the metal block 411 again and used for the metal block, the resource is saved, and the environment-friendly advocation is met.

When a fire occurs near the door body 1, the temperature rises, the metal block 411 is heated by the temperature of the nearby fire and transmits the temperature to the expandable graphite in the storage box 2 through the first opening 23, the expandable graphite is expanded by heat and rapidly decomposed to generate a large amount of gas, the piston plate 25 is expanded by the expandable graphite at the bottom thereof and moves upwards under the pressure of the generated gas and presses the first spring 26 to contract, the piston plate 25 moves upwards to drive the first connecting rod 31 to move upwards, the first push rod 32 moves upwards and no longer contacts the first jacking block 33, the rack 34 moves rightwards along the second connecting rod 341 under the elastic force of the third spring 342, the rack 34 drives the first gear 35 engaged with the rack to rotate, the first rotating shaft 36 rotates and drives the valve plate 37 to unseal the water spray pipe 21, the water on the top of the piston plate 25 in the storage box 2 is extruded by the piston plate 25 to pass through the water spraying pipe 21 and is sprayed out from the spray head 211 on the water spraying pipe 21, the sprayed water mist can slow down the fire spread near the fire door, simultaneously the temperature of the door body 1 is reduced, the piston plate 25 moves upwards to drive the first connecting rod 31 to move upwards, when the water in the storage box 2 is discharged and the piston plate 25 moves to the top of the inner cavity of the storage box 2, the first connecting rod 31 is pressed against the first top plate 43, the first top plate 43 moves upwards and is clamped by the locking mechanism 45 and cannot move downwards, the first top plate 43 moves upwards to drive the heat conducting block 41 to move upwards through the third connecting rod 42, the sliding plate 412 moves upwards along the sliding groove 27, the position of the material spraying pipe 413 moves upwards along with the position, the second opening 4121 is communicated with the first opening 23, and the expanded graphite in the storage box 2 passes through the first opening 23 under the wrapping of the generated gas, The second opening 4121 is sprayed to a fire source near the door body 1 from the spraying pipe 413 and part of the fire source is attached to the surface of the door body 1, meanwhile, the piston plate 25 moves downwards under the action of the elastic force of the first spring 26 until the piston plate collides with the first limiting block 24, the expandable graphite expands rapidly, part of flame is extinguished, meanwhile, the generated graphite expanded material covers the surface of combustible near the door body 1, contact between heat energy radiation and oxygen is isolated, acid radicals in an interlayer of the expandable graphite are released during expansion, carbonization of the combustible near the door body is promoted, and therefore a good effect is achieved through various flame-retardant modes; when the piston plate 25 moves downwards until abutting against the first stopper 24, the first connecting rod 31 drives one end of the first push rod 32 downwards to abut against the second groove 331 of the first push block 33, the first push block 33 moves leftwards and drives the rack 34 to move leftwards, the rack 34 drives the first gear 35 engaged therewith to rotate, the first rotating shaft 36 rotates and drives the valve plate 37 to seal the water spraying pipe 21, after the fire is completely extinguished, the cover 221 of the water feeding pipe 22 is opened, water is added into the storage box 2 through the water feeding pipe 22, the remaining expandable graphite in the storage box 2 is removed, unused expandable graphite is added through the water spraying pipe 413, the locking switch 454 is pulled outwards, the locking block 451 is driven by the fourth connecting rod 453 to shrink into the third groove 111, the first top plate 43 and the heat conducting block 41 are reset under the action of gravity, the first opening 23 is sealed again by the metal block 411 and abuts against the same, can be repeatedly used, saves resources and conforms to the advocation of green environmental protection.

The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and the embodiments and descriptions given above are only illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which fall within the scope of the claims. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a fire-retardant fire door of humidifying which characterized in that: the water spraying device comprises a door body (1), a water spraying control mechanism (3) and a flame retardant mechanism (4), wherein a plurality of storage boxes (2) used for storing water and expandable graphite are arranged in the door body (1), a first cavity (11) is arranged in the door body (1), the first cavity (11) is arranged at the top of each storage box (2), the water spraying control mechanism (3) is arranged in the first cavity (11), a first groove body (12) is arranged on one side of the door body (1), the first groove body (12) is arranged on one side of each storage box (2), the first groove body (12) is communicated with the first cavity, and the flame retardant mechanism (4) is arranged in the first groove body (12) and the first cavity (11);

store top one side fixed mounting of box (2) have spray pipe (21), spray pipe (21) run through the door body (1) and stretch out from one side of the door body (1), the opposite side fixed mounting who stores box (2) has filler pipe (22), filler pipe (22) run through the door body (1) and stretch out from the opposite side of the door body (1), lid (221) that play sealed effect are installed to the end of filler pipe (22), one side bottom of storing box (2) is equipped with first opening (23), fixed mounting has first stopper (24) on the inside wall of storing box (2), the top of first stopper (24) is equipped with piston plate (25), piston plate (25) and the inside wall sliding seal who stores box (2) are connected, the top of piston plate (25) is equipped with first spring (26), the mausoleum of first spring (26) respectively with the top of piston plate (25) and the interior roof of storing conflict box (2) even And (6) connecting.

2. The wet fire resistant fire rated door as recited in claim 1, further comprising: the water spraying control mechanism (3) comprises a first connecting rod (31), a first ejector rod (32), a first ejector block (33), a rack (34), a first gear (35), a first rotating shaft (36) and a valve plate (37), the first connecting rod (31) is a bent rod, one end of the first connecting rod (31) is fixedly connected with the top of the piston plate (25), the other end of the first connecting rod (31) penetrates through the top wall of the storage box (2) and extends into the first cavity (11), the other end of the first connecting rod (31) is fixedly connected with one end of the first ejector rod (32), a second groove body (331) with a wedge-shaped cross section is arranged in the first ejector block (33), the other end of the first ejector rod (32) is in a hemispherical shape, the other end of the first ejector rod (32) is abutted against the second groove body (331) in the first ejector block (33), and the first ejector block (33) is fixedly installed at the top of the rack (34), a second connecting rod (341) penetrates through the length direction of the rack (34), the second connecting rod (341) is connected with the rack (34) in a sliding manner, a third spring (342) is sleeved on the second connecting rod (341), and two ends of the second spring (342) are respectively fixedly connected with the side wall of the first cavity (11) and the side wall of the storage box (2), the first gear (35) is engaged with the rack (34), the middle part of the bottom end of the rack (34) is fixedly connected with one end of the first rotating shaft (36), the other end of the first rotating shaft (36) penetrates through the side wall of the spray pipe (21) and is fixedly connected with the side surface of the valve plate (37), the first rotating shaft (36) is connected with the spray pipe (21) in a sealing and rotating way, the valve plate (37) is arranged in the spray pipe (21), and the valve plate (37) is movably connected with the inner wall of the spray pipe (21) in a sealing way.

3. A wet fire retardant fire rated door as claimed in claim 2, further comprising: the flame-retardant mechanism (4) comprises a heat-conducting block (41), a third connecting rod (42), a first top plate (43), a second limiting block (44) and a locking mechanism (45), wherein the heat-conducting block (41) comprises a metal block (411), a sliding plate (412) and a material spraying pipe (413);

a sliding groove (27) is arranged on one side of the storage box (2), the groove bottom of the sliding groove (27) is communicated with a first opening (23), the sliding groove (27) is connected with a sliding plate (412) in a sliding manner, one side of the sliding plate (412) is fixedly connected with a metal block (411) and a material spraying pipe (413), the metal block (411) is arranged at the top of the material spraying pipe (413), a second opening (4121) is arranged on the sliding plate (412), the second opening (4121) is communicated with one end of the material spraying pipe (413), the size and shape of the second opening (4121) correspond to those of the first opening (23), one end of the metal block (411) and one end of the material spraying pipe (413) both extend out of the first groove body (12), the metal block (411) is fixedly connected with one end of a third connecting rod (42), and the other end of the third connecting rod (42) is fixedly connected with the top of a first top plate (43), the second limiting block (44) is fixedly installed on the side wall of the first cavity (11), the second limiting block (44) is abutted to the bottom edge of the first top plate (43), and the locking mechanism (45) is installed on the side wall of the first cavity (11).

4. A wet fire retardant fire rated door as claimed in claim 3, wherein: the locking mechanism (45) comprises a locking block (451), a second spring (452), a fourth connecting rod (453) and a locking switch (454), a third groove body (111) is arranged on the side wall of the first cavity (11), the second spring (452) is arranged in the third groove body (111), two ends of the second spring (452) are respectively abutted against and connected with the third groove body (111) and the locking block (451), the cross section of the locking block (451) is triangular, one end of the locking block (451) is fixedly connected with one end of the fourth connecting rod (453), and the other end of the fourth connecting rod (453) penetrates through the door body (1) and is fixedly connected with the locking switch (454).