A folding fire door

Abstract

The present invention discloses a folding fire door, belonging to the technical field of fire fighting equipment. The folding fire door comprises a main door, a leg component, a folding door mechanism and a longitudinal support component. The main door can be fixed on the ground. The leg components are multiple, and the leg components are symmetrically hinged on the main door. The folding door mechanism is fixedly connected to the top of the main door. The longitudinal support components are two groups, and the longitudinal support components are fixedly connected to the main door. A ventilation mechanism is arranged on the main door. Sealing curtains are fixedly connected on both sides of the main door and the folding door mechanism, and the sealing curtains are fixed on the side wall through the transverse support component. The present invention can be quickly deployed and used at any passage position in a building, quickly block the fire source, reduce economic losses, and improve fire extinguishing efficiency.

Description

Technical Field

[0001] The invention belongs to the technical field of fire-fighting equipment, and in particular relates to a folding fireproof door. Background Art

[0002] Fire doors are doors specially designed to stop the spread of fire and control the spread of smoke. They are usually installed in key locations of buildings, such as stairwells, elevator vestibules, pipe shafts, and places where fire and smoke need to be isolated. The main function of fire doors is to buy precious escape time for people and reduce property losses when a fire occurs.

[0003] Traditional fire doors are basically fixed at specific locations in buildings. When a fire occurs, the fire point may be anywhere in the building. If there is no fire door near the fire point, the existing fire door cannot be used to control the fire point, which may increase property losses. At the same time, the fire source and smoke cannot be quickly isolated, which is easy to damage the health of escaping personnel. Therefore, a folding fire door that can be quickly used at any passage position in the building is needed to block the fire source in the smallest range. Summary of the invention

[0004] The technical problem to be solved by the present invention is to overcome the shortcomings of the above-mentioned prior art and provide a foldable fire door. The present invention can be quickly deployed and used at any passage position in a building, quickly block the fire source, and conveniently discharge smoke, effectively improve the fire extinguishing efficiency, reduce property losses, and prevent smoke from damaging the health of escaping personnel.

[0005] The technical solution adopted to solve the above technical problems is: a folding fire door, comprising a main door, a leg component, a folding door mechanism and a longitudinal support component, the main door can be fixed on the ground, the leg components are multiple, the leg components are symmetrically hinged on the main door, the folding door mechanism is fixedly connected to the top of the main door, the longitudinal support components are two groups, the longitudinal support components are fixedly connected to the main door, the main door is provided with a ventilation mechanism, the main door and the folding door mechanism are fixedly connected on both sides with sealing curtains, and the sealing curtains are fixed to the side walls through transverse support components;

[0006] The longitudinal support member can fix the folding door mechanism on the top wall.

[0007] Through the above technical scheme, when a fire occurs, after the people at the fire source have evacuated, the main door is moved to the passage near the fire source, and then the main door is fixed on the ground in the middle of the passage, the folding door mechanism is unfolded, and then the longitudinal support component is started. The longitudinal support component lifts up the folding door mechanism, and finally the top of the folding door mechanism is fixed on the top wall, and then the sealing curtains on the sides of the main door and the folding door mechanism are unfolded, and the transverse support components are used to fix the two sides of the sealing curtains on the side walls, and finally the passage is completely sealed, thereby blocking the spread of the fire source, and the smoke generated by the fire is blocked behind the fire door, effectively preventing nearby escapees from inhaling smoke and damaging their health.

[0008] Furthermore, a receiving groove is symmetrically arranged at the bottom of the main door, an electric lifting rod is fixedly connected in the receiving groove, and a universal wheel is fixedly connected to the bottom of the electric lifting rod.

[0009] Through the above technical solution, since the bottom of the main door is symmetrically provided with a receiving groove, an electric lifting rod is fixedly connected in the receiving groove, and the bottom of the electric lifting rod is fixedly connected with a universal wheel, when the main door needs to be moved, the electric lifting rod is started, the universal wheel extends out of the receiving groove, and the main door can be easily moved, thereby improving the movement efficiency of the main door and gaining precious time for fire rescue. When the main door does not need to be moved, the electric lifting rod is started, the universal wheel is returned to the receiving groove, and the main door can be conveniently fixed and stored.

[0010] Furthermore, the front and rear sides of the main door are symmetrically provided with supporting leg parts, the main door is provided with a longitudinal groove, the top of the longitudinal groove is fixedly connected with a hinge seat, the supporting leg parts are hinged on the hinge seat, the supporting leg parts include a diagonal support rod, a support rod sleeve and a support block, the top of the diagonal support rod is hinged with the hinge seat, the bottom of the diagonal support rod is provided with a thread, the support rod sleeve is threadedly connected to the diagonal support rod, and the bottom of the support rod sleeve is hinged with a support block.

[0011] According to the above technical solution, since the front and rear sides of the main door are symmetrically provided with leg parts, a longitudinal groove is provided on the main door, a hinge seat is fixedly connected to the top of the longitudinal groove, and the leg parts are hinged on the hinge seat, so that after all the leg parts are unfolded from the longitudinal groove, the leg parts can fix the main door on the ground, and when the main door does not need to be fixed on the ground, the leg parts can be stored in the longitudinal groove;

[0012] Since the top of the diagonal support rod is hinged to the hinge seat, the bottom of the diagonal support rod is provided with a thread, the support rod sleeve is threadedly connected to the diagonal support rod, and the bottom of the support rod sleeve is hinged with a support block, so that after the diagonal support rod is unfolded from the longitudinal groove, the support rod sleeve can be rotated to adjust the distance between the support block and the diagonal support rod, and finally the bottom of the support block is fixed on the ground, the leg parts and the main door form a stable triangular structure, and the main door can be fixed on the ground after all the leg parts are unfolded.

[0013] Furthermore, the folding door mechanism is composed of a plurality of door panels and a flexible connecting cloth, the door panels are fixedly connected to adjacent door panels via the flexible connecting cloth, and the bottom of the folding door mechanism is fixedly connected to the top of the main door via the flexible connecting cloth.

[0014] Through the above technical solution, since the folding door mechanism is composed of multiple door panels and flexible connecting cloth, the door panels are fixedly connected to adjacent door panels by the flexible connecting cloth, and the bottom of the folding door mechanism is fixedly connected to the top of the main door by the flexible connecting cloth, so that the door panels can be folded and stacked on the top of the main door, and the folding door mechanism can be unfolded by pulling the stacked door panels apart, which is convenient and quick.

[0015] Furthermore, the longitudinal supporting component includes a hydraulic lifting rod and a top block, the bottom of the hydraulic lifting rod is fixedly connected to the main door, the top block is fixedly connected to the top of the hydraulic lifting rod, and the top block is rotatably connected to a roller on one side close to the folding door mechanism.

[0016] Through the above technical scheme, since the bottom of the hydraulic lifting rod is fixedly connected to the main door, the top block is fixedly connected to the top of the hydraulic lifting rod, and the top block is rotatably connected to the side of the folding door mechanism close to the top block, the hydraulic lifting rod can drive the top block to rise and fall, and the folding door mechanism is unfolded and covered on the top of the top block. The hydraulic lifting rod drives the top block to rise, and the folding door mechanism can be gradually raised. When the top block finally reaches the top wall, the top block presses the door panel at the top of the folding door mechanism on the top wall. The setting of the roller can change the sliding friction between the folding door mechanism and the top block into rolling friction during the rising process of the folding door mechanism, thereby improving the rising efficiency of the folding door mechanism, effectively fixing the folding door mechanism on the top wall, and the folding door mechanism can be fixed to the top wall without the operator using ladders or other tools to climb up. The operation is simple and convenient, and the fire rescue time is effectively saved.

[0017] Furthermore, a ventilation plate is fixedly connected to the front side of the ventilation mechanism, a ventilation fan is rotatably connected inside the ventilation mechanism, an air outlet is arranged at the bottom of the ventilation mechanism, a foldable air duct is fixedly connected to the bottom of the ventilation mechanism, and the foldable air duct is connected to the air outlet.

[0018] Through the above technical scheme, since a ventilation plate is fixedly connected to the front side of the ventilation mechanism, a ventilation fan is rotatably connected inside the ventilation mechanism, an air outlet is arranged at the bottom of the ventilation mechanism, a folding air duct is fixedly connected to the bottom of the ventilation mechanism, and the folding air duct is connected to the air outlet, when the fire door closes the passage to block the fire source, the ventilation mechanism can inhale the smoke, and then discharge it out of the building through the air outlet along the folding air duct, thereby effectively reducing the smoke and oxygen content at the fire source and effectively controlling the fire.

[0019] Furthermore, the ventilation plate is rotatably connected to a plurality of ventilation plates, the ventilation plate is fixedly connected to a plurality of wind shields, the wind shields are equidistantly arranged on the ventilation plate, the wind shields are arranged between two adjacent ventilation plates, the bottom of the ventilation plate is fitted with the wind shields, and the wind shields are arranged on the front side of the bottom of the ventilation plate.

[0020] Through the above technical scheme, since multiple ventilation plates are rotatably connected to the ventilation plate, multiple wind shields are fixedly connected to the ventilation plate, the wind shields are equidistantly arranged on the ventilation plate, the wind shields are arranged between two adjacent ventilation plates, the bottom of the ventilation plate is fitted with the wind shield, and the wind shield is arranged on the front side of the bottom of the ventilation plate, so that when the smoke passes through the ventilation plate, the ventilation plate can be flipped into the ventilation mechanism to allow the smoke to enter the ventilation mechanism, and then the ventilation mechanism can discharge the smoke from the air outlet, and after the air behind the main door enters the ventilation mechanism in the opposite direction, the bottom of the ventilation plate is fitted with the wind shield to prevent air from entering the fire source, reduce the oxygen content at the fire source, and effectively control the fire.

[0021] Furthermore, the ventilation fan shaft passes through the rear side wall of the ventilation mechanism, and a driving joint is provided at the rear end of the ventilation fan shaft.

[0022] Through the above technical solution, since the ventilation fan shaft passes through the rear side wall of the ventilation mechanism, a drive joint is provided at the rear end of the ventilation fan shaft, and the ventilation fan is arranged in the ventilation mechanism, so that the ventilation fan can rotate to quickly suck the smoke at the fire source into the ventilation mechanism, and then discharge the smoke from the air outlet. The setting of the drive joint can install a handle so that the ventilation fan can be started manually, and the drive motor can be connected when conditions permit, so that the ventilation mechanism is suitable for various rescue conditions.

[0023] Furthermore, the lateral supporting component includes a first connecting frame, a second connecting frame, an adjusting sleeve, an adjusting rod and a latch, the first connecting frame and the second connecting frame are rotatably connected, the adjusting sleeve and the adjusting rod are two groups, and the adjusting sleeve and the adjusting rod are symmetrically arranged on both sides of the first connecting frame and the second connecting frame.

[0024] Through the above technical solution, since the first connecting frame and the second connecting frame are rotatably connected, the transverse supporting component can be folded in half and stored when not in use, and can be opened and used when in use.

[0025] Furthermore, a threaded rod is fixedly connected to one side of the first connecting frame, and a threaded rod is symmetrically fixedly connected to the other side of the second connecting frame. One end of the adjusting sleeve is threadedly connected to the threaded rod, and the other end of the adjusting sleeve is slidably connected to the adjusting rod. One end of the adjusting rod is fixedly connected to a support plate, and an adjusting spring is sleeved on the adjusting rod. One end of the adjusting spring is fixedly connected to the support plate, and the other end of the adjusting spring is fixedly connected to the adjusting sleeve. A first positioning hole is provided on the first connecting frame, and a second positioning hole is provided on the second connecting frame, and the pin can pass through the first positioning hole and the second positioning hole.

[0026] Through the above technical scheme, since one end of the adjusting sleeve is threadedly connected to the threaded rod, the other end of the adjusting sleeve is slidably connected with the adjusting rod, one end of the adjusting rod is fixedly connected to the supporting plate, an adjusting spring is sleeved on the adjusting rod, one end of the adjusting spring is fixedly connected to the supporting plate, and the other end of the adjusting spring is fixedly connected to the adjusting sleeve, so that when the transverse supporting component is in use, it is only necessary to align the supporting plates on both sides with the side walls, rotate the first connecting frame and the second connecting frame, so that the first connecting frame and the second connecting frame are at an angle of 180 degrees, and the transverse supporting component is fully opened. At this time, the supporting plates on both sides are fixed on the side walls, and the supporting plates press the sealing curtain to the side walls. In the process of opening the transverse supporting component, the adjusting rod gradually slides into the adjusting sleeve. The setting of the adjusting spring ensures that after the transverse supporting component is fully opened, the adjusting rod slides to an appropriate distance in the adjusting sleeve, that is, the distance between the supporting plate and the adjusting sleeve is ensured to be appropriate, so that the transverse supporting component can be quickly deployed, and the supporting plate can conveniently press the sealing curtain to the side wall, effectively improving the operating efficiency;

[0027] One end of the adjusting sleeve is threadedly connected to the threaded rod, so that by rotating the adjusting sleeve, the distance between the adjusting sleeve and the first connecting frame or the second connecting frame can be adjusted, so that the total length of the lateral support component can be adjusted, which facilitates the lateral support component to adapt to different channel widths;

[0028] Since the first connecting frame is provided with a first positioning hole and the second connecting frame is provided with a second positioning hole, the pin can pass through the first positioning hole and the second positioning hole, so that after the transverse supporting component is fully unfolded, the first positioning hole and the second positioning hole overlap. At this time, inserting the pin can lock the positions of the first connecting frame and the second connecting frame, that is, the transverse supporting component is locked.

[0029] The beneficial effects of the present invention are as follows:

[0030] (1) In the present invention, the stacked door panels are pulled apart to allow the folding door mechanism to unfold. The hydraulic lifting rod can drive the top block to rise and fall. After the folding door mechanism is unfolded, it covers the top block. The hydraulic lifting rod drives the top block to rise, allowing the folding door mechanism to gradually rise. When the top block finally reaches the top wall, the top block presses the door panel on the top of the folding door mechanism against the top wall. Then, the sealing curtains on the sides of the main door and the folding door mechanism are unfolded, and the two sides of the sealing curtains are fixed to the side walls using transverse supporting components, so as to achieve rapid and complete sealing of the passage, thereby blocking the spread of the fire source and blocking the smoke generated by the fire behind the fire door, effectively preventing nearby escapees from inhaling smoke and damaging their health;

[0031] (2) In the present invention, the ventilation fan is started and rotated to quickly draw the smoke at the fire source into the ventilation mechanism. When the smoke passes through the ventilation plate, the ventilation plate can be flipped into the ventilation mechanism to allow the smoke to enter the ventilation mechanism. Then the ventilation mechanism can discharge the smoke from the air outlet. After the air behind the main door enters the ventilation mechanism in the opposite direction, the bottom of the ventilation plate fits with the wind shield to prevent air from entering the fire source, thereby reducing the oxygen content at the fire source and effectively controlling the fire. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a structural schematic diagram of a foldable fire door of the present invention from a first perspective;

[0033] Figure 2 is a structural schematic diagram of a foldable fire door of the present invention from a second viewing angle;

[0034] Figure 3 It is a schematic structural diagram of a main door of a folding fire door according to the present invention from a first perspective;

[0035] Figure 4 It is a structural schematic diagram of a main door of a foldable fire door of the present invention from a second viewing angle;

[0036] Figure 5 The present invention is a folding fire door Figure 4 A partial enlarged view of point B in the middle;

[0037] Figure 6 The invention discloses a folding fireproof door. Figure 3 A partial enlarged view of the middle A;

[0038] Figure 7 It is a structural schematic diagram of a leg component of a folding fire door of the present invention;

[0039] Figure 8 It is a schematic diagram of the exploded structure of a leg component of a folding fire door of the present invention;

[0040] Fig. 9It is a structural schematic diagram of the cooperation between a folding door mechanism and a longitudinal support component of a folding fire door of the present invention;

[0041] Fig.10 It is a schematic diagram of the exploded structure of a folding door mechanism and a longitudinal support component of a folding fire door of the present invention;

[0042] Fig.11 It is a structural schematic diagram of a longitudinal supporting component of a foldable fire door of the present invention;

[0043] Fig.12 It is a structural schematic diagram of a ventilation mechanism of a folding fire door of the present invention;

[0044] Fig.13 It is a schematic diagram of the internal structure of a ventilation mechanism of a folding fire door of the present invention;

[0045] Fig.14 It is a structural schematic diagram of a ventilation plate of a folding fire door of the present invention;

[0046] Fig.15 It is a schematic diagram of the exploded structure of a ventilation plate of a folding fire door of the present invention;

[0047] Fig.16 It is a structural schematic diagram of a transverse supporting component and a sealing curtain of a foldable fire door of the present invention;

[0048] Fig.17 It is a structural schematic diagram of a transverse supporting component of a foldable fire door of the present invention;

[0049] Fig.18 The present invention is a schematic diagram of the exploded structure of a transverse support component of a foldable fire door.

[0050] 1. The folding door mechanism includes the following: 1. main door; 2. ventilation mechanism; 3. leg member; 4. folding door mechanism; 5. longitudinal support member; 6. sealing curtain; 7. transverse support member; 11. receiving groove; 12. electric lifting rod; 13. universal wheel; 14. longitudinal groove; 141. hinge seat; 21. ventilation plate; 22. ventilation fan; 23. air outlet; 211. air exchange plate; 212. wind shield strip; 221. driving joint; 231. folding air guide duct; 31. diagonal support rod; 32. support rod sleeve; 33. support block; 41. door panel; 42. flexible connecting cloth; 51. top block; 52. hydraulic lifting rod; 511. roller; 71. first connecting frame; 72. second connecting frame; 73. adjusting sleeve; 74. adjusting rod; 75. latch; 711. first positioning hole; 721. second positioning hole; 741. adjusting spring; 742. support plate. DETAILED DESCRIPTION

[0051] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0052] like Figure 1 - Figure 2 As shown, a folding fire door comprises a main door 1, a leg member 3, a folding door mechanism 4 and a longitudinal support member 5. The main door 1 can be fixed on the ground. There are multiple leg members 3, which are symmetrically hinged on the main door 1. The folding door mechanism 4 is fixedly connected to the top of the main door 1. There are two groups of longitudinal support members 5, which are fixedly connected to the main door 1. The main door 1 is provided with a ventilation mechanism 2. Sealing curtains 6 are fixedly connected on both sides of the main door 1 and the folding door mechanism 4. The sealing curtains 6 are fixed to the side walls through transverse support members 7.

[0053] The longitudinal support member 5 can fix the folding door mechanism 4 on the top wall.

[0054] In this embodiment, when a fire occurs, after the people at the fire source have evacuated, the main door 1 is moved to the passage near the fire source, and then the main door 1 is fixed on the ground in the middle of the passage, the folding door mechanism 4 is unfolded, and then the longitudinal support component 5 is started, the longitudinal support component 5 lifts up the folding door mechanism 4, and finally the top of the folding door mechanism 4 is fixed to the top wall, and then the sealing curtains 6 on the sides of the main door 1 and the folding door mechanism 4 are unfolded, and the transverse support components 7 are used to fix the two sides of the sealing curtains 6 to the side walls, and finally the passage is completely sealed, thereby blocking the spread of the fire source, and blocking the smoke generated by the fire behind the fire door, effectively preventing nearby escapees from inhaling smoke and damaging their health.

[0055] like Figure 3 - Figure 5 As shown, a receiving groove 11 is symmetrically arranged at the bottom of the main door 1, an electric lifting rod 12 is fixedly connected in the receiving groove 11, and a universal wheel 13 is fixedly connected at the bottom of the electric lifting rod 12.

[0056] In this embodiment, when the main door 1 needs to be moved, the electric lifting rod 12 is started, and the universal wheel 13 extends out of the receiving slot 11, and the main door 1 can be easily moved, thereby improving the movement efficiency of the main door 1 and buying precious time for fire rescue. When the main door 1 does not need to be moved, the electric lifting rod 12 is started, and the universal wheel 13 is returned to the receiving slot 11, and the main door 1 can be conveniently fixed and stored.

[0057] like Figure 3 - Figure 8As shown, the front and rear sides of the main door 1 are symmetrically provided with supporting leg parts 3, a longitudinal groove 14 is provided on the main door 1, a hinge seat 141 is fixedly connected to the top of the longitudinal groove 14, the supporting leg part 3 is hinged on the hinge seat 141, the supporting leg part 3 includes an oblique support rod 31, a support rod sleeve 32 and a support block 33, the top of the oblique support rod 31 is hinged to the hinge seat 141, the bottom of the oblique support rod 31 is provided with a thread, the support rod sleeve 32 is threadedly connected to the oblique support rod 31, and the bottom of the support rod sleeve 32 is hinged to the support block 33.

[0058] In this embodiment, after the diagonal support rod 31 is unfolded from the longitudinal groove 14, the support rod sleeve 32 can be rotated to adjust the distance between the support block 33 and the diagonal support rod 31, and finally the bottom of the support block 33 is fixed on the ground, and the leg member 3 and the main door 1 form a stable triangular structure. After all the leg members 3 are unfolded, the main door 1 can be fixed on the ground;

[0059] Finally, after all the leg parts 3 are unfolded from the longitudinal groove 14 , the leg parts 3 can fix the main door 1 on the ground, and when the main door 1 does not need to be fixed on the ground, the leg parts 3 can be stored in the longitudinal groove 14 .

[0060] like Fig. 9 - Fig.11 As shown, the folding door mechanism 4 is composed of a plurality of door panels 41 and a flexible connecting cloth 42. The door panels 41 are fixedly connected to adjacent door panels 41 by the flexible connecting cloth 42. The bottom of the folding door mechanism 4 is fixedly connected to the top of the main door 1 by the flexible connecting cloth 42.

[0061] The longitudinal supporting component 5 includes a hydraulic lifting rod 52 and a top block 51. The bottom of the hydraulic lifting rod 52 is fixedly connected to the main door 1, and the top block 51 is fixedly connected to the top of the hydraulic lifting rod 52. The top block 51 is rotatably connected to a roller 511 on one side close to the folding door mechanism 4.

[0062] In this embodiment, the door panels 41 can be folded and stacked on the top of the main door 1, and the stacked door panels 41 can be pulled apart to allow the folding door mechanism 4 to unfold, which is convenient and quick. The hydraulic lifting rod 52 can drive the top block 51 to rise and fall, and the folding door mechanism 4 is covered on the top of the top block 51 after unfolding. The hydraulic lifting rod 52 drives the top block 51 to rise, so that the folding door mechanism 4 can be gradually raised. When the top block 51 finally reaches the top wall, the top block 51 presses the door panel 41 on the top of the folding door mechanism 4 on the top wall. The setting of the roller 511 can change the sliding friction between the folding door mechanism 4 and the top block 51 into rolling friction during the rising process of the folding door mechanism 4, thereby improving the rising efficiency of the folding door mechanism 4, effectively fixing the folding door mechanism 4 on the top wall, and the folding door mechanism 4 can be fixed to the top wall without the operator using ladders or other tools to climb up. The operation is simple and convenient, and the fire rescue time is effectively saved.

[0063] like Figure 3 - Figure 4as well as Fig.12 - Fig.15 As shown, a ventilation plate 21 is fixedly connected to the front side of the ventilation mechanism 2, a ventilation fan 22 is rotatably connected inside the ventilation mechanism 2, an air outlet 23 is arranged at the bottom of the ventilation mechanism 2, a folding air guide 231 is fixedly connected to the bottom of the ventilation mechanism 2, and the folding air guide 231 is communicated with the air outlet 23;

[0064] A plurality of ventilation plates 211 are rotatably connected to the ventilation plate 21, and a plurality of windshield strips 212 are fixedly connected to the ventilation plate 21. The windshield strips 212 are equidistantly arranged on the ventilation plate 21, and the windshield strips 212 are arranged between two adjacent ventilation plates 211. The bottom of the ventilation plate 211 is in contact with the windshield strips 212, and the windshield strips 212 are arranged at the front side of the bottom of the ventilation plate 211.

[0065] The rotating shaft of the ventilation fan 22 passes through the rear wall of the ventilation mechanism 2 , and a driving joint 221 is provided at the rear end of the rotating shaft of the ventilation fan 22 .

[0066] In this embodiment, the ventilation fan 22 rotates to quickly draw smoke from the fire source into the ventilation mechanism 2. The drive joint 221 is provided with a handle so that the ventilation fan 22 can be manually started. When conditions permit, a drive motor can be connected, so that the ventilation mechanism 2 is suitable for various rescue conditions.

[0067] When smoke passes through the ventilation plate 21, the ventilation plate 211 can be turned toward the ventilation mechanism 2 to allow smoke to enter the ventilation mechanism 2, and then the ventilation mechanism 2 can discharge the smoke from the air outlet 23. After the air behind the main door 1 enters the ventilation mechanism 2 in the reverse direction, the bottom of the ventilation plate 211 fits with the wind shield 212 to prevent air from entering the fire source, reduce the oxygen content at the fire source, and effectively control the fire.

[0068] The ventilation mechanism 2 is located at a lower position in the passage, and the hotter smoke is at a higher position where the fire occurs. The ventilation mechanism 2 inhales the smoke with a lower temperature at the bottom, which effectively prevents the ventilation mechanism 2 from heating up quickly and damaging the ventilation mechanism 2, and prevents the ventilation mechanism 2 from being overheated and burning the operator.

[0069] When the fire door finally closes the passage and blocks the fire source, the ventilation mechanism 2 can inhale the smoke, and then discharge it out of the building through the air outlet 23 along the folded air duct 231, effectively reducing the smoke and oxygen content at the fire source and preventing the fire from getting bigger.

[0070] like Fig.16 - Fig.18 As shown, the transverse support member 7 includes a first connecting frame 71, a second connecting frame 72, an adjusting sleeve 73, an adjusting rod 74 and a latch 75. The first connecting frame 71 and the second connecting frame 72 are rotatably connected. The adjusting sleeve 73 and the adjusting rod 74 are two groups, and the adjusting sleeve 73 and the adjusting rod 74 are symmetrically arranged on both sides of the first connecting frame 71 and the second connecting frame 72.

[0071] A threaded rod is fixedly connected to one side of the first connecting frame 71, and a threaded rod is symmetrically fixedly connected to the other side of the second connecting frame 72. One end of the adjusting sleeve 73 is threadedly connected to the threaded rod, and the other end of the adjusting sleeve 73 is slidably connected to the adjusting rod 74. One end of the adjusting rod 74 is fixedly connected to a support plate 742. An adjusting spring 741 is sleeved on the adjusting rod 74. One end of the adjusting spring 741 is fixedly connected to the support plate 742, and the other end of the adjusting spring 741 is fixedly connected to the adjusting sleeve 73. A first positioning hole 711 is provided on the first connecting frame 71, and a second positioning hole 721 is provided on the second connecting frame 72. The pin 75 can pass through the first positioning hole 711 and the second positioning hole 721.

[0072] When the lateral support member 7 is in use, it is only necessary to align the support plates 742 on both sides with the side walls, rotate the first connection frame 71 and the second connection frame 72, so that the first connection frame 71 and the second connection frame 72 are at an angle of 180 degrees, and the lateral support member 7 is fully opened. At this time, the support plates 742 on both sides are fixed on the side walls, and the support plates 742 press the sealing curtain 6 against the side walls. During the opening of the lateral support member 7, the adjustment rod 74 gradually slides into the adjustment sleeve 73. The setting of the adjustment spring 741 ensures that after the lateral support member 7 is fully opened, the adjustment rod 74 slides to an appropriate distance in the adjustment sleeve 73, that is, the distance between the support plates 742 and the adjustment sleeve 73 is ensured to be appropriate, so that the lateral support member 7 can be quickly deployed, and the support plates 742 can easily press the sealing curtain 6 against the side walls, effectively improving the operating efficiency.

[0073] One end of the adjusting sleeve 73 is threadedly connected to the threaded rod, so that by rotating the adjusting sleeve 73, the distance between the adjusting sleeve 73 and the first connecting frame 71 or the second connecting frame 72 can be adjusted, so that the total length of the lateral support member 7 can be adjusted, which facilitates the lateral support member 7 to adapt to different channel widths;

[0074] Since the first connecting frame 71 is provided with a first positioning hole 711 and the second connecting frame 72 is provided with a second positioning hole 721, the latch 75 can penetrate the first positioning hole 711 and the second positioning hole 721, so that after the transverse support component 7 is fully unfolded, the first positioning hole 711 and the second positioning hole 721 overlap. At this time, inserting the latch 75 can lock the positions of the first connecting frame 71 and the second connecting frame 72, that is, the transverse support component 7 is locked, so that the transverse support component 7 can be folded in half for storage when not in use, and can be opened to quickly complete the transverse support when in use.

[0075] Working principle:

[0076] During operation, when a fire occurs, after the personnel at the fire source have evacuated, the electric lifting rod 12 is started, the universal wheel 13 extends out of the receiving slot 11, and the main door 1 can be moved. The main door 1 is moved to the passage near the fire source, the electric lifting rod 12 is started, the universal wheel 13 is returned to the receiving slot 11, and then the diagonal support rod 31 is unfolded from the longitudinal slot 14, and the support rod sleeve 32 is rotated to adjust the distance between the support block 33 and the diagonal support rod 31, and finally the bottom of the support block 33 is fixed on the ground, and the leg member 3 and the main door 1 form a stable triangular structure. After all the leg members 3 are unfolded, the main door 1 can be fixed on the ground;

[0077] Pulling the stacked door panels 41 apart allows the folding door mechanism 4 to unfold, and the hydraulic lifting rod 52 can drive the top block 51 to rise and fall. After the folding door mechanism 4 is unfolded, it covers the top block 51. The hydraulic lifting rod 52 drives the top block 51 to rise, and the folding door mechanism 4 can be gradually raised. When the top block 51 finally reaches the top wall, the top block 51 presses the door panel 41 on the top of the folding door mechanism 4 against the top wall.

[0078] The setting of the roller 511 can change the sliding friction between the folding door mechanism 4 and the top block 51 into rolling friction during the rising process of the folding door mechanism 4, thereby improving the rising efficiency of the folding door mechanism 4 and effectively fixing the folding door mechanism 4 on the top wall. The folding door mechanism 4 can be fixed without the operator using a ladder or other tools to climb up, which is simple and convenient to operate, and effectively saves fire rescue time.

[0079] Then unfold the sealing curtain 6 on the side of the main door 1 and the folding door mechanism 4, use the transverse support component 7, align the support plates 742 on both sides with the side wall, rotate the first connecting frame 71 and the second connecting frame 72, so that the first connecting frame 71 and the second connecting frame 72 are at an angle of 180 degrees, and the transverse support component 7 is fully opened. At this time, the support plates 742 on both sides are fixed on the side wall, and the support plates 742 press the sealing curtain 6 to the side wall. During the opening of the transverse support component 7, the adjustment rod 74 gradually slides into the adjustment sleeve 73. The setting of the adjustment spring 741 ensures that after the transverse support component 7 is fully opened, the adjustment rod 74 slides to an appropriate distance in the adjustment sleeve 73, that is, the distance between the support plate 742 and the adjustment sleeve 73 is ensured to be appropriate, so that the transverse support component 7 can be quickly unfolded, and the support plate 742 can easily press the sealing curtain 6 to the side wall;

[0080] After the transverse support member 7 is fully unfolded, the first positioning hole 711 and the second positioning hole 721 overlap, and the latch 75 is inserted at this time to lock the positions of the first connection frame 71 and the second connection frame 72, that is, the transverse support member 7 is locked, and finally the channel is completely sealed, thereby blocking the spread of the fire source;

[0081] At this time, the ventilation fan 22 is started, and the rotation of the ventilation fan 22 can quickly draw the smoke at the fire source into the ventilation mechanism 2. The drive joint 221 can be provided with a handle so that the ventilation fan 22 can be started manually, and the drive motor can be connected when conditions permit, so that the ventilation mechanism 2 is suitable for various rescue conditions;

[0082] When smoke passes through the ventilation plate 21, the ventilation plate 211 can be turned toward the ventilation mechanism 2 to allow smoke to enter the ventilation mechanism 2, and then the ventilation mechanism 2 can discharge the smoke from the air outlet 23. After the air behind the main door 1 enters the ventilation mechanism 2 in the reverse direction, the bottom of the ventilation plate 211 fits with the wind shield 212 to prevent air from entering the fire source, reduce the oxygen content at the fire source, and effectively control the fire.

[0083] The ventilation mechanism 2 is located at a lower position in the passage, and the hotter smoke is at a higher position where the fire occurs. The ventilation mechanism 2 inhales the smoke with a lower temperature at the bottom, which effectively prevents the ventilation mechanism 2 from heating up quickly and damaging the ventilation mechanism 2, and prevents the ventilation mechanism 2 from being overheated and burning the operator.

[0084] When the fire door finally closes the passage and blocks the fire source, the ventilation mechanism 2 can inhale the smoke, and then discharge it out of the building through the air outlet 23 along the folded air guide 231, effectively reducing the smoke and oxygen content at the fire source and preventing the fire from spreading;

[0085] After the fire is extinguished, the ventilation fan 22 is turned off, the latch 75 is removed, the transverse support member 7 is folded in half and stored, the hydraulic lifting rod 52 is lowered, and the folding door mechanism 4 is lowered accordingly, and the door panels 41 are folded and stacked on the top of the main door 1, and the electric lifting rod 12 is started, and the universal wheel 13 extends out of the receiving groove 11, so that the main door 1 can be moved, and the closed passage is opened, which is convenient for the subsequent work.

[0086] The above description is only a preferred embodiment of the present invention and is not intended to limit the protection scope of the present invention.

Claims

1. A folding fire door, comprising a main door (1), a leg member (3), a folding door mechanism (4) and a longitudinal support member (5), characterized in that: The main door (1) can be fixed on the ground, the leg parts (3) are multiple, the leg parts (3) are symmetrically hinged on the main door (1), the folding door mechanism (4) is fixedly connected to the top of the main door (1), the longitudinal support parts (5) are two groups, the longitudinal support parts (5) are fixedly connected to the main door (1), the main door (1) is provided with a ventilation mechanism (2), and sealing curtains (6) are fixedly connected on both sides of the main door (1) and the folding door mechanism (4), and the sealing curtains (6) are fixed to the side walls through transverse support parts (7); The longitudinal support component (5) is capable of fixing the folding door mechanism (4) on the top wall; The folding door mechanism (4) is composed of a plurality of door panels (41) and a flexible connecting cloth (42); the door panels (41) are fixedly connected to adjacent door panels (41) via the flexible connecting cloth (42); and the bottom of the folding door mechanism (4) is fixedly connected to the top of the main door (1) via the flexible connecting cloth (42); The longitudinal support component (5) comprises a hydraulic lifting rod (52) and a top block (51); the bottom of the hydraulic lifting rod (52) is fixedly connected to the main door (1); the top block (51) is fixedly connected to the top of the hydraulic lifting rod (52); and a roller (511) is rotatably connected to a side of the top block (51) close to the folding door mechanism (4); A ventilation plate (21) is fixedly connected to the front side of the ventilation mechanism (2), a ventilation fan (22) is rotatably connected inside the ventilation mechanism (2), an air outlet (23) is provided at the bottom of the ventilation mechanism (2), a foldable air guide duct (231) is fixedly connected to the bottom of the ventilation mechanism (2), and the foldable air guide duct (231) is in communication with the air outlet (23); The ventilation plate (21) is rotatably connected to a plurality of ventilation plates (211), and the ventilation plate (21) is fixedly connected to a plurality of windshield strips (212), the windshield strips (212) are equidistantly arranged on the ventilation plate (21), the windshield strips (212) are arranged between two adjacent ventilation plates (211), the bottom of the ventilation plate (211) is in contact with the windshield strips (212), and the windshield strips (212) are arranged on the front side of the bottom of the ventilation plate (211).

2. A folding fire door according to claim 1, characterized in that: The bottom of the main door (1) is symmetrically provided with a receiving groove (11), an electric lifting rod (12) is fixedly connected in the receiving groove (11), and a universal wheel (13) is fixedly connected at the bottom of the electric lifting rod (12).

3. A folding fire door according to claim 1, characterized in that: The front and rear sides of the main door (1) are symmetrically provided with leg parts (3), the main door (1) is provided with a longitudinal groove (14), the top of the longitudinal groove (14) is fixedly connected to a hinge seat (141), the leg part (3) is hinged on the hinge seat (141), the leg part (3) comprises an oblique support rod (31), a support rod sleeve (32) and a support block (33), the top of the oblique support rod (31) is hinged to the hinge seat (141), the bottom of the oblique support rod (31) is provided with a thread, the support rod sleeve (32) is threadedly connected to the oblique support rod (31), and the bottom of the support rod sleeve (32) is hinged to the support block (33).

4. A folding fire door according to claim 1, characterized in that: The rotating shaft of the ventilation fan (22) passes through the rear side wall of the ventilation mechanism (2), and a driving joint (221) is provided at the rear end of the rotating shaft of the ventilation fan (22).

5. A folding fire door according to claim 1, characterized in that: The transverse supporting member (7) comprises a first connecting frame (71), a second connecting frame (72), an adjusting sleeve (73), an adjusting rod (74) and a latch (75); the first connecting frame (71) and the second connecting frame (72) are rotatably connected; the adjusting sleeve (73) and the adjusting rod (74) are two groups; the adjusting sleeve (73) and the adjusting rod (74) are symmetrically arranged on both sides of the first connecting frame (71) and the second connecting frame (72).

6. A folding fire door according to claim 5, characterized in that: A threaded rod is fixedly connected to one side of the first connection frame (71), and a threaded rod is symmetrically fixedly connected to the other side of the second connection frame (72). One end of the adjustment sleeve (73) is threadedly connected to the threaded rod, and the other end of the adjustment sleeve (73) is slidably connected to the adjustment rod (74). One end of the adjustment rod (74) is fixedly connected to a support plate (742). An adjustment spring (741) is sleeved on the adjustment rod (74). One end of the adjustment spring (741) is fixedly connected to the support plate (742), and the other end of the adjustment spring (741) is fixedly connected to the adjustment sleeve (73). A first positioning hole (711) is provided on the first connection frame (71), and a second positioning hole (721) is provided on the second connection frame (72). The latch (75) can pass through the first positioning hole (711) and the second positioning hole (721).

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