Smoke-isolating airtight steel fireproof door

Abstract

The utility model belongs to the technical field of fireproof doors, and particularly relates to a smoke-isolating airtight steel fireproof door which comprises a door frame, a fireproof door body is rotatably arranged in the door frame, and a hinge seat is arranged between one side of the fireproof door body and the door frame; the sealing structures are embedded in the inner wall of the door frame, the sealing structures are arranged on the inner wall of the door frame, each sealing structure comprises a containing groove, the containing grooves are formed in the inner wall of the door frame, a water bag and a supply structure are arranged in each containing groove, and the supply structures are connected with the water bags and used for filling the water bags with substances to enable the water bags to expand; the water bag abuts against the side face of the fireproof door; the water bag arranged between the door frame and the fireproof door is arranged in a split mode. The effects of improving the sealing performance between the fireproof door and the door frame and improving the smoke isolation performance of the fireproof door are achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of fireproof doors, and in particular relates to a smoke-proof and airtight steel fireproof door. Background Art

[0002] Fire doors refer to doors that can meet the requirements of fire resistance stability, integrity and thermal insulation within a certain period of time. They are fireproof partitions with certain fire resistance, located between fire compartments, evacuation stairwells, vertical shafts, etc. They are specially used to isolate fire sources in housing buildings and play a huge role in firefighting work. Once a fire occurs, people can get a chance to escape through fire doors.

[0003] In the traditional design of fire doors, in order to ensure the smooth opening and closing of the door, a certain gap is usually reserved between the fire door and the door frame. Although this design meets the needs of daily use, it has a fatal flaw when a fire occurs: these gaps will become the transmission channel of high-temperature smoke, allowing smoke and harmful gases to pass through the fire door along these gaps, thereby reducing the smoke isolation effect of the fire door and increasing the difficulty and danger of personnel evacuation. Utility Model Content

[0004] The purpose of the utility model is to provide a smoke-proof and airtight steel fire door in response to the above-mentioned technical problems, so as to improve the sealing between the fire door and the door frame and improve the smoke-proof performance of the fire door.

[0005] In view of this, the utility model provides a smoke-tight steel fireproof door, which is characterized by comprising:

[0006] A door frame, wherein a fire door is rotatably arranged inside the door frame, and a hinge seat is arranged between one side of the fire door and the door frame;

[0007] A sealing structure, which is embedded in the inner wall of the door frame, and the inner wall of the door frame is provided with a sealing structure, and the sealing structure includes:

[0008] The receiving groove is provided on the inner wall of the door frame, and a water bag is arranged in the receiving groove.

[0009] The supply structure is connected to the water bag and is used to fill the water bag with substances to expand the water bag until the water bag abuts against the side of the fire door.

[0010] In the present technical solution, when the fire door is closed, the material can be filled into the water bag through the set supply structure, so that the water bag expands and abuts against the side of the fire door, thereby improving the sealing between the fire door and the door frame, which is beneficial to improving the smoke isolation effect of the fire door.

[0011] In the above technical solution, further, the supply structure includes:

[0012] A supply pipe, wherein the supply pipe is arranged inside the door frame and a valve is arranged on the supply pipe;

[0013] A shunt tube is arranged between the supply tube and the water bag, and a joint is arranged between the shunt tube and the supply tube.

[0014] In this technical solution, by opening the valve, the substance can be filled into the water bag through the supply pipe, the joint, and the diversion pipe, causing the water bag to expand and abut against the side wall of the fire door, thereby improving the sealing between the fire door and the door frame.

[0015] In the above technical solution, further, the sealing structure also includes:

[0016] A groove, which is provided on the fitting surface between the fire door and the door frame and cooperates with the water bag;

[0017] A spray structure is connected to the supply structure and is arranged on the front side of the door frame and above the fire door.

[0018] In the present technical solution, when the water bag expands, it can contact the bottom surface of the groove, which is beneficial to increase the contact area between the water bag and the fire door, thereby improving the sealing between the fire door and the door frame, and through the set spray structure, the substance in the water bag or the supply structure can be sprayed onto the surface of the fire door, which is beneficial to reduce the temperature of the surface of the fire door and improve the fire resistance of the fire door.

[0019] In the above technical solution, further, the spray structure includes:

[0020] A flow diverter, the flow diverter is fixedly arranged on the front of the door frame, and a plurality of sprinkler heads are evenly distributed along the length direction of the flow diverter;

[0021] A connecting pipe, which is arranged between the supply structure and the flow divider and is used to transport the substance;

[0022] Wherein, a control structure is arranged between the connecting pipe and the diverter.

[0023] In the present technical solution, by controlling the switch of the structure, the substance can be transported to the diverter through the connecting pipe, and sprayed to the surface of the fire door through the sprinkler head arranged below the diverter, so as to improve the fire resistance of the fire door.

[0024] In the above technical solution, further, the control structure includes:

[0025] A housing, wherein a slide groove is provided through the front of the housing, and limiting grooves are symmetrically provided on both sides of the slide groove;

[0026] A slider, wherein the slider is slidably arranged in the slide groove, and limit blocks matching with the limit grooves are arranged on both sides of the slider;

[0027] A channel, the channel penetrating the housing and the slider, for circulating the spraying material;

[0028] A cover plate, which is detachably arranged on the front side of the housing, and a through hole is arranged at the center of the cover body;

[0029] A connecting rope, one end of which is connected to the end surface of the slider, and the other end of which is arranged in a ring shape and extends out of the cover body from the through hole;

[0030] A limiting strip, wherein the limiting strip passes through the annular connecting rope, and the limiting strip passes through the annular portion of the connecting rope;

[0031] A spring, wherein the spring is arranged between the cover plate and the slider;

[0032] Wherein, the length of the limiting strip is greater than the diameter of the through hole, and the limiting strip can soften or melt as the temperature rises.

[0033] In the technical solution, when the control structure is in the closed state, the limit bar passes through the ring on the connecting rope and is stuck in the through hole. The slider cooperates with the connecting rope so that the channel on the slider is staggered with the channel on the shell, thereby playing a role of partition. In the event of a fire, the limit bar gradually softens or melts as the temperature rises, so that the connecting rope loses its restriction. The spring is set to push the slider to slide inward, so that the channel on the slider is connected with the channel on the shell, so that the substance can flow through the control structure and spray out from the spray structure. Through the cooperation between the limit bar, the connecting rope, the spring, and the slider, the spray structure can be controlled to automatically spray the fire door without manual intervention, which is beneficial to improving the fire resistance of the fire door.

[0034] In the above technical solution, further, the substance provided by the supply structure is water or a fire extinguishing agent containing perfluorohexanone.

[0035] In the above technical solution, further, a stopper is provided on the inner wall of the door frame on the side opposite to the opening and closing direction of the fire door, and a slot matching the stopper is provided at a corresponding position of the fire door.

[0036] In this technical solution, the cooperation between the stopper and the slot can improve the impact resistance of the fire door and improve the safety of personnel during escape.

[0037] The beneficial effects of the utility model are:

[0038] 1. When the fire door is closed, the material can be filled into the water bag through the set supply structure, so that the water bag expands and abuts against the side of the fire door, thereby improving the sealing between the fire door and the door frame, which is beneficial to improving the smoke isolation effect of the fire door.

[0039] 2. When the water bag expands, it can contact the bottom surface of the groove, which is beneficial to increase the contact area between the water bag and the fire door, thereby improving the sealing between the fire door and the door frame. In addition, the spray structure can spray the substance in the water bag or the supply structure onto the surface of the fire door, which is beneficial to reduce the temperature of the surface of the fire door and improve the fire resistance of the fire door. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] Figure 1 It is a three-dimensional schematic diagram of the utility model;

[0041] Figure 2 It is a three-dimensional schematic diagram of the utility model from another angle;

[0042] Figure 3 It is a schematic diagram of the supply structure of the utility model;

[0043] Figure 4 It is a three-dimensional cross-sectional view of the utility model;

[0044] Figure 5 This utility model Figure 4 A magnified image of area A;

[0045] Figure 6 This utility model Figure 4 Enlarged view of area B;

[0046] Figure 7 This utility model Figure 6 Enlarged view of area C in the middle;

[0047] The symbols in the figure are:

[0048] 1. Door frame; 2. Fire door; 3. Articulated seat; 4. Sealing structure; 401. Receiving groove; 402. Water bag; 403. Groove; 5. Supply structure; 501. Supply pipe; 502. Joint; 503. Diverter pipe; 504. Valve; 6. Spraying structure; 601. Connecting pipe; 602. Diverter; 603. Spraying head; 7. Control structure; 701. Shell; 702. Slide; 703. Limiting groove; 704. Slider; 705. Channel; 706. Cover plate; 707. Through hole; 708. Connecting rope; 709. Limiting strip; 710. Spring; 8. Stopper; 9. Slot. DETAILED DESCRIPTION

[0049] The following will be combined with the drawings in the embodiments of the present application to clearly describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments in the present application belong to the scope of protection of this application.

[0050] In the description of the present application, it should be noted that the terms used herein are only for describing specific embodiments, and are not intended to limit the exemplary embodiments according to the present application. For ease of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship. The technology, methods and equipment known to ordinary technicians in the relevant field may not be discussed in detail, but in appropriate cases, the technology, methods and equipment should be regarded as part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as merely exemplary, rather than as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0051] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first", "second", etc. are generally of one type, and the number of objects is not limited. For example, the first object can be one or more. In addition, "and / or" in the specification and claims represents at least one of the connected objects, and the character " / " generally indicates that the objects associated with each other are in an "or" relationship.

[0052] It should be noted that, in the description of the present application, the orientation or positional relationship indicated by terms such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description. Unless otherwise stated, these orientation words do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the scope of protection of the present application; the orientation words "inside and outside" refer to the inside and outside relative to the contour of each component itself.

[0053] It should be noted that, in the present application, the terms "comprise", "include" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises one..." does not exclude the presence of other identical elements in the process, method, article or device including the element. In addition, it should be noted that the scope of the method and device in the embodiment of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in reverse order according to the functions involved, for example, the described method may be performed in an order different from that described, and various steps may also be added, omitted, or combined. In addition, the features described with reference to certain examples may be combined in other examples.

[0054] Embodiment 1:

[0055] Depend on Figure 1-Figure 6 As shown, the present embodiment provides a smoke-proof and airtight steel fire door 2, comprising: a door frame 1, wherein the fire door 2 is rotatably arranged inside the door frame 1, and a hinge seat 3 is arranged between one side of the fire door 2 and the door frame 1; a sealing structure 4, wherein the sealing structure 4 is embedded in the inner wall of the door frame 1, and the inner wall of the door frame 1 is provided with the sealing structure 4, and the sealing structure 4 comprises: a receiving groove 401, wherein the receiving groove 401 is opened on the inner wall of the door frame 1, and a water bag 402 is arranged in the receiving groove 401, and a supply structure 5, wherein the supply structure 5 is connected to the water bag 402, and is used for filling the water bag 402 with substances to expand the water bag 402 until the water bag 402 abuts against the side of the fire door 2.

[0056] When the fire door 2 is closed, the material can be filled into the water bag 402 through the supply structure 5, so that the water bag 402 expands and abuts against the side of the fire door 2, thereby improving the sealing between the fire door 2 and the door frame 1, which is beneficial to improving the smoke isolation effect of the fire door 2. The material of the water bag 402 is rubber.

[0057] Furthermore, the supply structure 5 includes: a supply pipe 501, which is arranged inside the door frame 1, and a valve 504 is provided on the supply pipe 501; a diverter pipe 503, which is arranged between the supply pipe 501 and the water bag 402, and a joint 502 is provided between the diverter pipe 503 and the supply pipe 501.

[0058] By opening the valve 504 , the substance can be filled into the water bag 402 through the supply pipe 501 , the joint 502 , and the diversion pipe 503 , so that the water bag 402 expands and abuts against the side wall of the fire door 2 , thereby improving the sealing between the fire door 2 and the door frame 1 .

[0059] Furthermore, the sealing structure 4 also includes: a groove 403, which is arranged on the fitting surface of the fire door 2 and the door frame 1, and cooperates with the water bag 402; a spray structure 6, which is connected to the supply structure 5, arranged on the front of the door frame 1 and located above the fire door 2.

[0060] In the present technical solution, when the water bag 402 expands, it can contact the bottom surface of the groove 403, which is beneficial to increase the contact area between the water bag 402 and the fire door 2, thereby improving the sealing between the fire door 2 and the door frame 1, and the substance in the water bag 402 or the supply structure 5 can be sprayed onto the surface of the fire door 2 through the set spray structure 6, which is beneficial to reduce the temperature of the surface of the fire door 2 and improve the fire resistance of the fire door 2.

[0061] Embodiment 2:

[0062] Depend on Figure 1-Figure 7 As shown, this embodiment provides a smoke-tight steel fireproof door 2, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0063] Furthermore, the spray structure 6 includes: a diverter 602, which is fixedly arranged on the front side of the door frame 1, and a plurality of spray heads 603 are evenly distributed along the length direction of the diverter 602; a connecting pipe 601, which is arranged between the supply structure 5 and the diverter 602 for transporting substances; wherein a control structure 7 is arranged between the connecting pipe 601 and the diverter 602.

[0064] By controlling the switch of the structure 7 , the substance can be transported to the diverter 602 through the connecting pipe 601 , and sprayed onto the surface of the fire door 2 through the sprinkler head 603 arranged below the diverter 602 , so as to improve the fire resistance of the fire door 2 .

[0065] Furthermore, the control structure 7 includes: a shell 701, a slide groove 702 is provided on the front of the shell 701, and limit grooves 703 are symmetrically provided on both sides of the slide groove 702; a slider 704, the slider 704 is slidably provided in the slide groove 702, and limit blocks matching the limit grooves 703 are provided on both sides of the slider 704; a channel 705, the channel 705 passes through the shell 701 and the slider 704, and is used to circulate the spraying material; a cover plate 706, the cover plate 706 is detachably provided on the front of the shell 701, and a limit plate 703 is provided in the center of the cover body. There is a through hole 707; a connecting rope 708, one end of which is connected to the end face of the slider 704, and the other end is arranged in a ring shape and extends out of the cover body from the through hole 707; a limiting strip 709, which passes through the ring-shaped connecting rope 708, and the limiting strip 709 passes through the ring-shaped part of the connecting rope 708; a spring 710, which is arranged between the cover plate 706 and the slider 704; wherein, the length of the limiting strip 709 is greater than the diameter of the through hole 707, and the limiting strip 709 can soften or melt as the temperature rises.

[0066] When the control structure 7 is in the closed state, the limit bar 709 passes through the ring on the connecting rope 708 and is stuck at the through hole 707. The slider 704 cooperates with the connecting rope 708 to make the channel 705 on the slider 704 intersect with the channel 705 on the shell 701, which plays a role of partition. In the event of a fire, the limit bar 709 gradually softens or melts as the temperature rises, so that the connecting rope 708 loses its restriction. The spring 710 pushes the slider 704 to slide inward, so that the channel 705 on the slider 704 is connected with the channel 705 on the shell 701, so that the material can flow through the control structure 7 and spray out from the spray structure 6. Through the cooperation between the limit bar 709, the connecting rope 708, the spring 710, and the slider 704, the spray structure 6 can be controlled to automatically spray the fire door 2 without manual intervention, which is conducive to improving the fire resistance of the fire door 2.

[0067] Furthermore, the substance provided by the supply structure 5 is water or a fire extinguishing agent containing perfluorohexanone.

[0068] Furthermore, a stopper 8 is provided on the inner wall of the door frame 1 on the side opposite to the opening and closing direction of the fire door 2 , and a slot 9 matching with the stopper 8 is provided at a corresponding position of the fire door 2 .

[0069] The cooperation between the stopper 8 and the slot 9 can improve the impact resistance of the fire door 2 and improve the safety of people escaping.

[0070] The embodiments of the present application are described above in conjunction with the accompanying drawings. In the absence of conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present application, ordinary technicians in this field can also make many forms without departing from the purpose of the present application and the scope of protection of the claims, all of which are within the protection of the present application.

Claims

1. A smoke-tight steel fire door (2), characterized in that ,include: A door frame (1), wherein a fire door (2) is rotatably arranged inside the door frame (1), and a hinge seat (3) is arranged between one side of the fire door (2) and the door frame (1); A sealing structure (4), wherein the sealing structure (4) is embedded in the inner wall of the door frame (1), and the inner wall of the door frame (1) is provided with a sealing structure (4), and the sealing structure (4) comprises: A receiving groove (401), wherein the receiving groove (401) is provided on the inner wall of the door frame (1), and a water bag (402) is arranged in the receiving groove (401). A supply structure (5) is connected to the water bag (402) and is used to fill the water bag (402) with substances to expand the water bag (402) until the water bag (402) abuts against the side of the fire door (2).

2. A smoke-tight steel fire door (2) according to claim 1, characterized in that: The supply structure (5) comprises: A supply pipe (501), wherein the supply pipe (501) is arranged inside the door frame (1), and a valve (504) is arranged on the supply pipe (501); A shunt tube (503) is provided between the supply tube (501) and the water bag (402), and a joint (502) is provided between the shunt tube (503) and the supply tube (501).

3. A smoke-tight steel fire door (2) according to claim 1, characterized in that: The sealing structure (4) further comprises: A groove (403), wherein the groove (403) is provided on the mating surface between the fire door (2) and the door frame (1) and cooperates with the water bag (402); A spray structure (6) is connected to the supply structure (5) and is arranged on the front of the door frame (1) and above the fire door (2).

4. A smoke-tight steel fire door (2) according to claim 3, characterized in that: The spray structure (6) comprises: A flow diverter (602), wherein the flow diverter (602) is fixedly arranged on the front side of the door frame (1), and a plurality of spray heads (603) are evenly distributed along the length direction of the flow diverter (602); A connecting pipe (601), the connecting pipe (601) is arranged between the supply structure (5) and the diverter (602) for conveying substances; A control structure (7) is provided between the connecting pipe (601) and the flow divider (602).

5. A smoke-tight steel fire door (2) according to claim 4, characterized in that: The control structure (7) comprises: A housing (701), wherein a slide groove (702) is provided through the front of the housing (701), and limiting grooves (703) are symmetrically provided on both sides of the slide groove (702); A slider (704), wherein the slider (704) is slidably disposed in the slide groove (702), and limit blocks matching the limit grooves (703) are disposed on both sides of the slider (704); A channel (705), the channel (705) penetrates the housing (701) and the slider (704) for circulating the spraying material; A cover plate (706), the cover plate (706) is detachably arranged on the front side of the housing (701), and a through hole (707) is arranged at the center of the cover body; A connecting rope (708), one end of which is connected to the end surface of the slider (704), and the other end of which is arranged in a ring shape and extends out of the cover body from the through hole (707); A limiting strip (709), wherein the limiting strip (709) passes through the connecting rope (708) arranged in an annular shape, and the limiting strip (709) passes through the annular portion of the connecting rope (708); A spring (710), wherein the spring (710) is disposed between the cover plate (706) and the slider (704); The length of the limiting strip (709) is greater than the diameter of the through hole (707), and the limiting strip (709) can soften or melt as the temperature rises.

6. The smoke-tight steel fire door (2) according to claim 1, characterized in that: The substance provided by the supply structure (5) is water or a fire extinguishing agent containing perfluorohexanone.

7. The smoke-tight steel fire door (2) according to claim 1, characterized in that: A stopper (8) is provided on the inner wall of the door frame (1) on the side opposite to the opening and closing direction of the fire door (2), and a slot (9) matching the stopper (8) is provided at a corresponding position of the fire door (2).

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