Flame-retardant heat-insulation steel fireproof door

Abstract

The utility model discloses a flame-retardant heat-insulation steel fireproof door which comprises a door frame, a steel door body is installed on the inner wall of the door frame through hinges, a spraying mechanism is arranged on the top of the outer wall of the steel door body, the outer wall of the steel door body is rotationally connected with a rotating handle, and a water storage tank is fixed to the outer wall, away from the rotating handle, of the steel door body. An extrusion device for extruding the water storage tank is arranged below the water storage tank, an adjusting mechanism for adjusting the extrusion device is arranged below the extrusion device, a heat insulation assembly is arranged on the outer wall, away from the steel door, of the water storage tank, and the adjusting mechanism comprises a rotating rod fixed to one end of a rotating handle; and a first gear is fixed at the other end of the rotating rod. The spraying device is arranged, when the extrusion block is extruded by the extrusion plate, water in the water storage tank can be extruded out of the connecting hose, the water flows to the water outlet pipe at the moment, then the water is sprayed out through the spraying head, and then the cooling and heat insulation effects on the outer wall of the steel door are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of steel fireproof doors, in particular to a flame-retardant and heat-insulating steel fireproof door. Background Art

[0002] Steel fire doors are a type of fire door made of steel, used to prevent the spread of fire and protect the safety of people and property. Steel fire doors are usually composed of steel plates, fireproof materials and fireproof sealing strips. Steel fire doors have the characteristics of good fire resistance, solid structure and long service life. They are widely used in commercial buildings, industrial plants, public places and other places that require fire isolation.

[0003] However, the existing flame-retardant and heat-insulating steel fire doors do not have very good thermal insulation performance in the event of a fire. If the heat conduction is very fast in a fire, the heat can easily pass through the steel fire doors into the stairwell, thereby reducing the time for users to escape. Therefore, there is an urgent need to solve this problem. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and provides a flame retardant and heat insulating steel fireproof door.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A flame-retardant heat-insulating steel fireproof door, comprising a door frame, a steel door is installed on the inner wall of the door frame through hinges, a spraying mechanism is provided on the top of the outer wall of the steel door, a rotating handle is rotatably connected to the outer wall of the steel door, a water storage tank is fixed on the outer wall of the steel door away from the rotating handle, a squeezing device for squeezing the water storage tank is provided below the water storage tank, an adjusting mechanism for adjusting the squeezing device is provided below the squeezing device, and a heat insulation component is provided on the outer wall of the water storage tank away from the steel door;

[0007] The adjusting mechanism includes a rotating rod fixed to one end of the rotating handle, a first gear is fixed to the other end of the rotating rod, a first slide rail is fixed to the outer wall of the steel door away from the rotating handle, a first slider adapted thereto is slidably provided on the first slide rail, racks are fixed to the top two ends of the first slider, the racks are meshed with the first gear, a limit block is provided on the top of the first slider, the limit block cooperates with the first gear, the outer wall of the first slider is rotatably connected to a connecting rod, and the other end of the connecting rod is connected to the extrusion device.

[0008] As a further solution of the utility model, a notch is provided on the top of the first sliding block, and two limit blocks are provided in the notch through a torsion spring. One end of the limit block is arc-shaped, and the other end of the limit block is meshed with the first gear. When the first gear rotates counterclockwise, it will slide over the arc-shaped surface at one end of the limit block, and when the first gear rotates clockwise, it will mesh with the other end of the limit block.

[0009] As a further solution of the utility model, the extrusion device includes a second slide rail fixed on the outer wall of the steel door, the outer wall of the second slide rail is provided with a second slider adapted thereto, the outer wall of the second slider is fixed with a first fixed block, the bottom of the outer wall of the first fixed block is rotatably connected to a connecting rod, the top of the first fixed block is fixed with an extrusion plate, the top of the extrusion plate passes through one end of the water tank and is connected to an extrusion block, and the extrusion block can squeeze the water inside the water tank out of the connecting hose.

[0010] As a further solution of the utility model, a connecting hose is provided on the top of the inner wall of the water storage tank, and the other end of the connecting hose passes through the steel door and is connected to the spraying mechanism.

[0011] As a further solution of the utility model, the spraying mechanism includes a water outlet pipe fixed on the outer wall of the steel door away from the water tank, a plurality of spray heads are provided at the bottom of the water outlet pipe, the other end of the water outlet pipe is connected to the water outlet of the connecting hose, and a water inlet pipe is provided on the side of the outer wall of the steel door close to the water outlet pipe, a sealing plug is provided at one end of the water inlet pipe, and the water inlet pipe can be used to fill the water tank with water.

[0012] As a further solution of the utility model, the insulation assembly includes an insulation board fixed on the outer wall of the water tank away from the extrusion block, the insulation board is filled with insulation filler, and the outer wall of the insulation board is fixed with a fireproof board, which can block the spread of fire.

[0013] The beneficial effects of the utility model are:

[0014] The utility model is provided with a spraying device, when the extrusion block is squeezed by the extrusion plate, the water inside the water storage tank will be squeezed out from the connecting hose, and then the water will flow to the water outlet pipe, and then sprayed out through the sprinkler head, thereby achieving the effect of cooling and heat insulating the outer wall of the steel door.

[0015] The utility model is provided with a heat insulation component. When a fire occurs, the heat insulation board fixed on the outer wall of the water tank will also block the fire to a certain extent. At the same time, the fireproof board will prevent the fire from igniting it and can block the advance of the fire, thereby realizing the fire blocking and heat insulation effects of the steel door. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1This is a three-dimensional structural schematic diagram of a flame-retardant and heat-insulating steel fire door proposed by the utility model;

[0017] Figure 2 A schematic diagram of a three-dimensional explosion structure of a flame-retardant and heat-insulating steel fire door proposed by the utility model;

[0018] Figure 3 This is a partial structural schematic diagram of a flame-retardant and heat-insulating steel fire door proposed by the utility model;

[0019] Figure 4 The utility model provides a flame retardant and heat-insulating steel fireproof door. Figure 3 Enlarged structural diagram at A in the middle.

[0020] In the figure: 1. door frame; 2. steel door; 3. hinge; 4. turning handle; 5. sealing plug; 6. water inlet pipe; 7. water outlet pipe; 8. sprinkler head; 9. water storage tank; 10. insulation board; 11. insulation filler; 12. fireproof board; 13. connecting hose; 14. rotating rod; 15. first gear; 16. first slide rail; 17. first slider; 18. connecting rod; 19. second slide rail; 20. first fixed block; 21. extrusion plate; 22. extrusion block; 23. second slider; 24. rack; 25. limit block; 26. notch. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0022] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present utility model will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0023] Reference Figure 1-Figure 4 A flame retardant heat-insulating steel fireproof door comprises a door frame 1, a steel door 2 is mounted on the inner wall of the door frame 1 through a hinge 3, a spray mechanism is arranged on the top of the outer wall of the steel door 2, a rotating handle 4 is rotatably connected to the outer wall of the steel door 2, a water storage tank 9 is fixed to the outer wall of the steel door 2 away from the rotating handle 4, a squeezing device for squeezing the water storage tank 9 is arranged below the water storage tank 9, an adjusting mechanism for adjusting the squeezing device is arranged below the squeezing device, and a heat insulation component is arranged on the outer wall of the water storage tank 9 away from the steel door 2;

[0024] The adjusting mechanism includes a rotating rod 14 fixed to one end of the rotating handle 4, a first gear 15 is fixed to the other end of the rotating rod 14, a first slide rail 16 is fixed to the outer wall of the steel door 2 away from the rotating handle 4, the first slide rail 16 is slidably provided with a first slider 17 adapted thereto, racks 24 are fixed to the top two ends of the first slider 17, the racks 24 are meshed with the first gear 15, a limit block 25 is provided on the top of the first slider 17, the limit block 25 cooperates with the first gear 15, the outer wall of the first slider 17 is rotatably connected to the connecting rod 18, and the other end of the connecting rod 18 is connected to the extrusion device.

[0025] In this embodiment, a slot 26 is provided at the top of the first slider 17, and two limit blocks 25 are provided in the slot 26 through a torsion spring. One end of the limit block 25 is arc-shaped, and the other end of the limit block 25 is meshed with the first gear 15. When the first gear 15 rotates clockwise, it will slide over the arc at one end of the limit block 25. When the first gear 15 rotates counterclockwise, it will mesh with the other end of the limit block 25.

[0026] In this embodiment, the extrusion device includes a second slide rail 19 fixed on the outer wall of the steel door 2, the outer wall of the second slide rail 19 is provided with a second slider 23 adapted thereto, the outer wall of the second slider 23 is fixed with a first fixed block 20, the bottom of the outer wall of the first fixed block 20 is rotatably connected with a connecting rod 18, the top of the first fixed block 20 is fixed with an extrusion plate 21, the top of the extrusion plate 21 passes through one end of the water tank 9 and is connected with an extrusion block 22, and the extrusion block 22 can squeeze the water inside the water tank 9 out of the connecting hose 13.

[0027] In this embodiment, a connecting hose 13 is provided on the top of the inner wall of the water storage tank 9, and the other end of the connecting hose 13 passes through the steel door 2 and is connected to the spraying mechanism.

[0028] In this embodiment, the spraying mechanism includes a water outlet pipe 7 fixed on the outer wall of the steel door 2 away from the water storage tank 9, a plurality of spray heads 8 are provided at the bottom of the water outlet pipe 7, the other end of the water outlet pipe 7 is connected to the water outlet of the connecting hose 13, and a water inlet pipe 6 is provided on the side of the outer wall of the steel door 2 close to the water outlet pipe 7, and a sealing plug 5 is provided at one end of the water inlet pipe 6, and water can be injected into the water storage tank 9 through the water inlet pipe 6.

[0029] In this embodiment, the insulation assembly includes an insulation board 10 fixed on the outer wall of the water storage tank 9 away from the extrusion block 22. The insulation board 10 is filled with an insulation filler 11. The outer wall of the insulation board 10 is fixed with a fireproof board 12, which can block the advance of fire.

[0030] Working principle: When in use, if a fire occurs indoors, due to the strong thermal conductivity of the steel door 2, after being burned by fire for a long time, some heat will pass through the steel door 2 and enter the stairwell, increasing the danger for people when escaping. At this time, when the rotating handle 4 is turned counterclockwise, the rotating rod 14 connected to the rotating handle 4 will drive the first gear 15 to rotate. When the first gear 15 rotates, the first gear 15 will mesh with the end of the limit block 25 without an arc. At this time, the first gear 15 will mesh with the rack 24. At this time, the rack 24 will drive the first slider 17 to slide on the first slide rail 16. When the first slider 17 moves, the connecting rod 18 rotatably connected to the first slider 17 will move upward. When the connecting rod 18 moves upward, the connecting rod 18 will drive the second slider 23 to slide on the second slide rail 19. At this time, the second slider 23 will drive the first fixed block 20 to slide. At this time, when the first fixed block 20 slides upward, it will drive the extrusion plate 21 to squeeze the block 22. When the squeezing block 22 is squeezed, the water inside the water tank 9 will be squeezed out from the connecting hose 13. At this time, the water will flow to the water outlet pipe 7, and then spray the water out through the sprinkler head 8. At this time, the steel door 2 can be effectively cooled and the surrounding fire can be controlled. At this time, the heat insulation board 10 fixed on the outer wall of the water tank 9 will also block the fire to a certain extent. At the same time, the fireproof board 12 fixed on the outer wall of the heat insulation board 10 will also block the fire. When the rotation of the rotating handle 4 is stopped, the rotating handle 4 will be reset due to its characteristics. At this time, the first slider 17 will be reset to its original position. When it is necessary to open the door to leave, the rotating handle 4 is rotated clockwise at this time. At this time, the steel door 2 will be opened and then escape. When the rotating handle 4 is rotated clockwise, the first gear 15 will slide with the arc surface at the other end of the limit block 25 to prevent the first slider 17 from continuing to slide. When the water in the water tank 9 is used up, the sealing plug 5 is opened at this time, and then the water tank 9 is filled with water through the water inlet pipe 6.

[0031] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0032] 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. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0033] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein, for example. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0034] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A flame retardant and heat-insulating steel fire door, comprising a door frame (1), characterized in that: The inner wall of the door frame (1) is provided with a steel door (2) via a hinge (3); the top of the outer wall of the steel door (2) is provided with a spraying mechanism; the outer wall of the steel door (2) is rotatably connected with a rotating handle (4); a water storage tank (9) is fixed to the outer wall of the steel door (2) away from the rotating handle (4); a squeezing device for squeezing the water storage tank (9) is provided below the water storage tank (9); an adjusting mechanism for adjusting the squeezing device is provided below the squeezing device; and a heat insulation component is provided on the outer wall of the water storage tank (9) away from the steel door (2); The adjustment mechanism comprises a rotating rod (14) fixed to one end of the rotating handle (4), a first gear (15) being fixed to the other end of the rotating rod (14), a first slide rail (16) being fixed to the outer wall of the steel door (2) away from the rotating handle (4), a first slider (17) being slidably provided on the first slide rail (16) and adapted thereto, racks (24) being fixed to the top two ends of the first slider (17), the racks (24) being meshed with the first gear (15), a limit block (25) being provided on the top of the first slider (17), the limit block (25) being matched with the first gear (15), the outer wall of the first slider (17) being rotatably connected to a connecting rod (18), the other end of the connecting rod (18) being connected to an extrusion device.

2. A flame retardant and heat insulating steel fire door according to claim 1, characterized in that: A notch (26) is provided at the top of the first sliding block (17), and two limit blocks (25) are provided in the notch (26) via a torsion spring. One end of the limit block (25) is arc-shaped, and the other end of the limit block (25) is meshed with the first gear (15).

3. The flame retardant and heat insulating steel fire door according to claim 1, characterized in that: The extrusion device comprises a second slide rail (19) fixed on the outer wall of the steel door (2); the outer wall of the second slide rail (19) is provided with a second sliding block (23) adapted thereto; the outer wall of the second sliding block (23) is fixed with a first fixed block (20); the bottom of the outer wall of the first fixed block (20) is rotatably connected to a connecting rod (18); the top of the first fixed block (20) is fixed with an extrusion plate (21); the top of the extrusion plate (21) passes through one end of the water storage tank (9) and is connected to an extrusion block (22).

4. The flame retardant and heat insulating steel fire door according to claim 1, characterized in that: A connecting hose (13) is provided on the top of the inner wall of the water storage tank (9), and the other end of the connecting hose (13) passes through the steel door (2) and is connected to the spraying mechanism.

5. The flame retardant and heat insulating steel fire door according to claim 4, characterized in that: The spraying mechanism comprises a water outlet pipe (7) fixed on the outer wall of the steel door (2) away from the water storage tank (9), a plurality of spray heads (8) are arranged at the bottom of the water outlet pipe (7), the other end of the water outlet pipe (7) is connected to the water outlet of the connecting hose (13), and a water inlet pipe (6) is arranged on the side of the outer wall of the steel door (2) close to the water outlet pipe (7), and a sealing plug (5) is arranged at one end of the water inlet pipe (6).

6. The flame retardant and heat insulating steel fire door according to claim 1, characterized in that: The heat insulation component comprises a heat insulation board (10) fixed on the outer wall of the water storage tank (9) away from the extrusion block (22), the interior of the heat insulation board (10) is filled with a heat insulation filler (11), and the outer wall of the heat insulation board (10) is fixed with a fireproof board (12).

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