Heat insulation steel door

Abstract

The utility model discloses a heat insulation steel door which comprises a door frame and a door plate, the door plate is rotatably installed on the door frame, the door plate is provided with an installation groove, an air inlet pipeline, an air blowing box and a cooling pipeline are fixedly installed on the door plate, the air inlet pipeline and the air blowing box are located in the installation groove, and the cooling pipeline is fixedly installed in the door plate. A first sealing strip and a second sealing strip are connected to the top of the door plate in a sliding mode, the first sealing strip and the second sealing strip abut against the door frame, and the position, communicated with the door slot, of the air inlet pipeline is located between the first sealing strip and the second sealing strip. The heat dissipation door plate has the advantages that heat dissipation can be continuously conducted on the door plate, the active heat dissipation effect is achieved, and the heat insulation effect is improved. The door plate can be cooled without water in a fire disaster, so that water supply is not needed during use, normal heat dissipation can be achieved under the condition of water shortage, and the advantage of good reliability is achieved.

Description

Technical Field

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

[0002] Insulated steel doors are composed of door leaves and door frames. They are made of steel plates and have fireproof and soundproof effects. They are widely used in large-scale building facilities. Since steel plates are thermally conductive, when encountering a fire, the temperature of the steel door is likely to be too high, which is not only easy to burn people, but also easy to cause the steel door to deform.

[0003] The Chinese utility model with announcement number CN214787003U discloses a heat-insulating and fire-proof steel door, including a door body and a door frame, the door body is connected to the side wall of the door frame by hinge rotation, the door body includes an outer door and an inner door, both of which are provided with heat-insulating panels and fire-proof panels in the inner cavity, a pipe groove is provided on the side close to the outer door and the inner door, a water pipeline is provided in the pipe groove after the outer door and the inner door are combined, an upper electric push rod and a lower electric push rod are provided in the inner cavity at one end of the door frame and the door body, the telescopic end of the upper electric push rod is provided with an upper pipe base, the inner cavity of the upper pipe base is provided with a water inlet pipe connected to the municipal water network, the telescopic end of the lower electric push rod is provided with a lower pipe base, and the inner cavity of the lower pipe base is provided with a water outlet pipe. On the basis of the traditional heat-insulating and fire-proof steel door, by adding a water cooling device, in the event of a fire hazard, the heat absorbed by the door body is taken away by flowing water flowing through the inside of the door body, thereby greatly improving the upper limit of the fireproof ability of the heat-insulating and fire-proof steel door.

[0004] In the above-mentioned heat-insulating and fire-proof steel doors, cooling water needs to be injected from the outside into the door body to cool the door body. However, during a fire, the water demand is large, and it is difficult to meet the cooling water demand of the steel door. It is not convenient to use in a fire, and when water is scarce, its reliability will be seriously affected. Therefore, the steel door in the prior art has the problem of poor reliability. Utility Model Content

[0005] In order to solve the above technical problems, the purpose of the utility model is to provide a heat-insulating steel door, which includes a door frame and a door panel. The heat-insulating steel door has the advantage of good reliability.

[0006] In order to achieve the above utility model purpose, the technical solution adopted by the utility model is as follows:

[0007] An insulated steel door comprises a door frame and a door panel, wherein the door panel can be rotatably mounted on the door frame, the door panel is provided with a mounting groove, an air intake duct, an air blower box and a cooling duct are fixedly mounted on the door panel, the air intake duct and the air blower box are located in the mounting groove, a door gap is provided between the upper end of the door panel and the door frame, the air intake duct is communicated with the door gap and the air blower box respectively, the cooling duct is fixedly mounted in the door panel, the door panel is provided with an air outlet, the cooling duct is communicated with the air blower box and the air outlet respectively, a first sealing strip and a second sealing strip are slidably connected to the top of the door panel, the first sealing strip and the second sealing strip abut against the door frame, and the position where the air intake duct is communicated with the door gap is located between the first sealing strip and the second sealing strip.

[0008] Through such a setting, the door panel can be continuously cooled, achieving the effect of active cooling and improving the heat insulation effect. In a fire, the door panel can be cooled without water, so there is no need for water supply during use. In the absence of water, the heat can be normally dissipated, achieving the advantage of better reliability.

[0009] Preferably, the blower box comprises a box body, an impeller, a first air cavity and a second air cavity. The impeller is rotatably mounted in the box body, and the impeller is located between the first air cavity and the second air cavity.

[0010] Through such an arrangement: the function of driving air circulation through the blower box is achieved.

[0011] Preferably, the box body is provided with a first connecting pipe and a second connecting pipe, wherein both ends of the first connecting pipe are respectively connected to a side of the first sealing strip away from the door frame and the first air cavity, and both ends of the second connecting pipe are respectively connected to a side of the second sealing strip away from the door frame and the second air cavity.

[0012] Through such an arrangement, the function of driving the first sealing strip and the second sealing strip to block the door gap is achieved.

[0013] Preferably, the intake pipe is connected to a first intake manifold and a second intake manifold, the first intake manifold and the second intake manifold are respectively connected to a first air cavity and a second air cavity, the first intake manifold is equipped with a first intake check valve for preventing gas from flowing into the intake pipe, and the second intake manifold is equipped with a second intake check valve for preventing gas from flowing into the intake pipe.

[0014] Through such an arrangement, it is ensured that the impeller can drive air to flow toward the second air supply manifold and the first air supply manifold respectively when rotating forward and reverse.

[0015] Preferably, the cooling pipeline is provided with a first air supply manifold and a second air supply manifold, the two ends of the first air supply manifold are respectively connected to the first air cavity and the cooling pipeline, the two ends of the second air supply manifold are respectively connected to the second air cavity and the cooling pipeline, the first air supply manifold is installed with a first air supply check valve for preventing gas from flowing to the first air cavity, and the second air supply manifold is installed with a second air supply check valve for preventing gas from flowing to the second air cavity.

[0016] Through such an arrangement, it is ensured that the impeller can respectively drive the first air supply manifold and the air in the first air supply manifold to flow into the cooling pipeline when rotating forward and reverse.

[0017] Preferably, the impeller is fixedly connected to a driven pulley.

[0018] Through such an arrangement, it is convenient to drive the impeller to rotate.

[0019] Preferably, a driving member is fixedly mounted on the door panel, an output shaft of the driving member is fixedly connected to a driving pulley, and a transmission belt is wound between the driving pulley and the driven pulley.

[0020] Through such an arrangement, the function of driving the impeller to rotate in the box body is achieved.

[0021] Preferably, the air outlet passes through the door panel, and sealing strips are detachably connected to both ends of the air outlet.

[0022] Through such an arrangement, the thermal insulation performance is ensured.

[0023] Preferably, the exhaust port is located at the lower end of the cooling pipeline.

[0024] Through such an arrangement, the heat dissipation effect of air on the door panel is improved.

[0025] Preferably, the cooling pipeline is provided with a plurality of curved sections.

[0026] Through such an arrangement, the heat dissipation effect of air on the door panel is improved.

[0027] Compared with the prior art, the utility model has achieved beneficial technical effects:

[0028] 1. The blower box drives the air in the air intake pipe to flow to the cooling pipe. The air in the door gap is sucked into the air intake pipe, and the air in the cooling pipe is discharged through the exhaust port. The heat on the door panel is absorbed by the cooling pipe, and then the heat on the cooling pipe is absorbed by the flowing air, and the air after heat absorption is discharged from the exhaust port, so that the door panel can be continuously cooled, achieving the effect of active heat dissipation and improving the heat insulation effect. In a fire, the door panel can be cooled and cooled without water, so there is no need for water supply during use. It can also dissipate heat normally under water shortage conditions, achieving the advantage of good reliability.

[0029] 2. When a fire occurs, a large amount of smoke is usually generated. When the first sealing strip is located on the side of the air intake pipe close to the fire, push the first sealing strip toward the door frame and block the door gap to prevent high-temperature smoke from entering the air intake pipe. When the second sealing strip is located on the side of the air intake pipe close to the fire, push the second sealing strip toward the door frame and block the door gap to prevent high-temperature smoke from entering the air intake pipe. This ensures the heat insulation effect of the door panel. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a structural schematic diagram of a heat-insulating steel door in an embodiment of the utility model;

[0031] Figure 2 It is a schematic diagram of the internal structure of the installation slot in the embodiment of the utility model;

[0032] Figure 3 It is a schematic diagram of the structure of the cooling pipeline in the embodiment of the utility model;

[0033] Figure 4 It is a schematic diagram of the structure of the air outlet and the blocking strip in the embodiment of the utility model.

[0034] The technical features indicated by the reference numerals are as follows:

[0035] 11. Door frame; 12. Door gap; 21. Door panel; 22. Exhaust vent; 23. First sealing strip; 24. Second sealing strip; 25. First connecting pipe; 26. Second connecting pipe; 27. Mounting groove; 28. Cover plate; 29. ​​Sealing strip; 31. Air intake pipe; 32. First air intake manifold; 33. Second air intake manifold; 34. First air intake non-return valve; 35. Second air intake non-return valve; 41. Housing; 42. Impeller; 43. First air cavity; 44. Second air cavity; 45. Driven pulley; 46. Transmission belt; 47. Active pulley; 48. Driving member; 51. Cooling pipeline; 52. First air supply manifold; 53. Second air supply manifold; 54. First air supply non-return valve; 55. Second air supply non-return valve; 56. Bend section. DETAILED DESCRIPTION

[0036] In order to make the purpose, technical solutions and advantages of the utility model more clearly understood, the utility model is further described in detail below in conjunction with embodiments, but the scope of protection claimed in the utility model is not limited to the following specific embodiments.

[0037] refer to Figures 1 to 4A heat-insulating steel door includes a door frame 11 and a door panel 21. The door panel 21 is rotatably mounted on the door frame 11. The door panel 21 is provided with a mounting groove 27. An air intake pipeline 31, an air blower box and a cooling pipeline 51 are fixedly mounted on the door panel 21. The air intake pipeline 31 and the air blower box are located in the mounting groove 27. The door panel 21 is provided with a cover plate 28 that blocks the mounting groove 27. A door gap 12 is provided between the upper end of the door panel 21 and the door frame 11. The air intake pipeline 31 is respectively connected to the door gap 12 and the air blower box. The cooling pipeline 51 is fixedly mounted in the door panel 21. The cooling pipeline 51 is provided with a plurality of curved sections 56. The door panel 21 is provided with an exhaust port 22, and the cooling pipeline 51 is respectively connected to the blower box and the exhaust port 22. The top of the door panel 21 is slidably connected with a first sealing strip 23 and a second sealing strip 24, which abut against the door frame 11, and the position where the air intake pipeline 31 is connected to the door gap 12 is located between the first sealing strip 23 and the second sealing strip 24. The exhaust port 22 is located at the lower end of the cooling pipeline 51, and the exhaust port 22 passes through the door panel 21. The two ends of the exhaust port 22 are respectively detachably connected with blocking strips 29.

[0038] The blower box includes a box body 41, an impeller 42, a first air cavity 43 and a second air cavity 44. The impeller 42 is rotatably mounted in the box body 41, and the impeller 42 is located between the first air cavity 43 and the second air cavity 44. The impeller 42 is driven to rotate in the box body 41, and the impeller 42 drives the air in the box body 41 to flow during the rotation, thereby realizing the function of driving the air circulation through the blower box. The impeller 42 is fixedly connected to a driven pulley 45, and the door panel 21 is fixedly installed with a driving member 48, which is a motor. The output shaft of the driving member 48 is fixedly connected to a driving pulley 47, and a transmission belt 46 is wound between the driving pulley 47 and the driven pulley 45.

[0039] The box body 41 is provided with a first connecting pipe 25 and a second connecting pipe 26. The two ends of the first connecting pipe 25 are respectively connected with the side of the first sealing strip 23 away from the door frame 11 and the first air cavity 43. The two ends of the second connecting pipe 26 are respectively connected with the side of the second sealing strip 24 away from the door frame 11 and the second air cavity 44. The intake pipe 31 is connected with the first intake manifold 32 and the second intake manifold 33. The first intake manifold 32 and the second intake manifold 33 are respectively connected with the first air cavity 43 and the second air cavity 44. The first intake manifold 32 is installed with a first intake check valve 34 to prevent gas from flowing to the intake pipe 31. The second intake manifold 33 is installed with a second intake check valve 35 to prevent gas from flowing to the intake pipe 31. The cooling pipeline 51 is provided with a first air supply manifold 52 and a second air supply manifold 53. The two ends of the first air supply manifold 52 are respectively connected to the first air cavity 43 and the cooling pipeline 51, and the two ends of the second air supply manifold 53 are respectively connected to the second air cavity 44 and the cooling pipeline 51. The first air supply manifold 52 is installed with a first air supply check valve 54 for preventing gas from flowing to the first air cavity 43, and the second air supply manifold 53 is installed with a second air supply check valve 55 for preventing gas from flowing to the second air cavity 44.

[0040] When the impeller 42 rotates forward, the air passes through the intake duct 31, the first intake manifold 32, the first air cavity 43, the second air cavity 44, the second air supply manifold 53, the cooling duct 51, and the exhaust port 22 in sequence. When the impeller 42 rotates reversely, the air passes through the intake duct 31, the second intake manifold 33, the second air cavity 44, the first air cavity 43, the first air supply manifold 52, the cooling duct 51, and the exhaust port 22 in sequence.

[0041] This embodiment has the following advantages:

[0042] The blower box drives the air in the air intake pipe 31 to flow toward the cooling pipe 51, and the air in the door gap 12 is sucked into the air intake pipe 31, and the air in the cooling pipe 51 is discharged through the exhaust port 22. The heat on the door panel 21 is absorbed by the cooling pipe 51, and then the heat on the cooling pipe 51 is absorbed by the flowing air, and the air after heat absorption is discharged from the exhaust port 22, so that the door panel 21 can be continuously cooled, and the effect of active heat dissipation is achieved, and the heat insulation effect is improved. In a fire, the door panel 21 can be cooled and cooled without water, so that no water supply is required during use, and normal heat dissipation can be achieved even under water shortage conditions, achieving the advantage of good reliability.

[0043] When a fire occurs, a large amount of smoke is usually generated. When the first sealing strip 23 is located on the side of the air intake duct 31 close to the fire, the first sealing strip 23 is pushed to move toward the door frame 11 and block the door gap 12 to prevent high-temperature smoke from entering the air intake duct 31. When the second sealing strip 24 is located on the side of the air intake duct 31 close to the fire, the second sealing strip 24 is pushed to move toward the door frame 11 and block the door gap 12 to prevent high-temperature smoke from entering the air intake duct 31. This ensures the heat insulation effect of the door panel 21.

[0044] When the impeller 42 rotates forward, the impeller 42 drives the air in the first air cavity 43 to enter the second air cavity 44 and generates a positive pressure in the second air cavity 44. The air in the second air cavity 44 flows to the second sealing strip 24 through the second connecting pipe 26, so that the second sealing strip 24 can be pushed to move toward the door frame 11 and block the door gap 12 by the positive pressure. When the impeller 42 rotates reversely, the impeller 42 drives the air in the second air cavity 44 to enter the first air cavity 43 and generates a positive pressure in the first air cavity 43. The air in the first air cavity 43 flows to the first sealing strip 23 through the first connecting pipe 25, so that the first sealing strip 23 can be pushed to move toward the door frame 11 and block the door gap 12 by the positive pressure. During a fire, the second sealing strip 24 and the first sealing strip 23 are controlled to block the door gap 12 by adjusting the forward and reverse rotation of the impeller 42, respectively, so as to realize the function of driving the first sealing strip 23 and the second sealing strip 24 to block the door gap 12.

[0045] When the impeller 42 rotates forward, the second intake check valve 35 prevents the air in the second air chamber 44 from flowing toward the second intake manifold 33; when the impeller 42 rotates reversely, the first intake check valve 34 prevents the air in the first air chamber 43 from flowing toward the first intake manifold 32, thereby ensuring that the impeller 42 can drive the air to flow toward the second air supply manifold 53 and the first air supply manifold 52 when rotating forward and reversely, respectively.

[0046] When the impeller 42 rotates forward, the first air supply one-way valve 54 prevents the air in the first air supply manifold 52 from flowing into the first air cavity 43; when the impeller 42 rotates reversely, the second air supply one-way valve 55 prevents the air in the second air supply manifold 53 from flowing into the second air cavity 44, thereby ensuring that the impeller 42 can drive the air in the first air supply manifold 52 and the first air supply manifold 52 to flow into the cooling pipeline 51 when rotating forward and reversely respectively.

[0047] The driven pulley 45 is driven to rotate, which can drive the impeller 42 to rotate in the housing 41, thereby facilitating the driving of the impeller 42 to rotate.

[0048] The driving member 48 drives the driven pulley 45 and the impeller 42 to rotate through the driving pulley 47 and the transmission belt 46 , thereby realizing the function of driving the impeller 42 to rotate in the housing 41 .

[0049] When a fire occurs on one side of the door panel 21, personnel can remove the sealing strip 29 on the side where the fire does not occur, so that the air in the exhaust port 22 can be discharged, while the high-temperature smoke on the side where the fire occurs is blocked by the sealing strip 29 that has not been removed and cannot enter the exhaust port 22, thereby ensuring the thermal insulation performance.

[0050] The air enters the door panel 21 from the upper end of the door panel 21 through the air intake pipe 31 and is then discharged from the lower end of the cooling pipe 51 , so that the air can flow through a longer distance in the door panel 21 , thereby improving the heat dissipation effect of the air on the door panel 21 .

[0051] According to the disclosure and teaching of the above specification, the technicians in the field of the utility model can also change and modify the above implementation. Therefore, the utility model is not limited to the specific implementation methods disclosed and described above, and some modifications and changes to the utility model should also fall within the scope of protection of the claims of the utility model. In addition, although some specific terms are used in this specification, these terms are only for the convenience of description and do not constitute any limitation to the utility model.

Claims

1. A heat-insulating steel door, characterized in that: The invention comprises a door frame (11) and a door panel (21), wherein the door panel (21) is rotatably mounted on the door frame (11), the door panel (21) is provided with a mounting groove (27), an air intake pipeline (31), an air blower box and a cooling pipeline (51) are fixedly mounted on the door panel (21), the air intake pipeline (31) and the air blower box are located in the mounting groove (27), a door gap (12) is provided between the upper end of the door panel (21) and the door frame (11), the air intake pipeline (31) is communicated with the door gap (12) and the air blower box respectively, and the cooling pipeline (51) is connected to the door gap (12) and the air blower box respectively. (51) is fixedly installed in the door panel (21), the door panel (21) is provided with an exhaust port (22), the cooling pipeline (51) is respectively connected to the blower box and the exhaust port (22), the top of the door panel (21) is slidably connected with a first sealing strip (23) and a second sealing strip (24), the first sealing strip (23) and the second sealing strip (24) are in contact with the door frame (11), and the position where the air intake pipeline (31) is connected to the door gap (12) is located between the first sealing strip (23) and the second sealing strip (24).

2. The heat-insulating steel door according to claim 1, characterized in that: The blower box comprises a box body (41), an impeller (42), a first air cavity (43) and a second air cavity (44); the impeller (42) is rotatably mounted in the box body (41); and the impeller (42) is located between the first air cavity (43) and the second air cavity (44).

3. The heat-insulating steel door according to claim 2, characterized in that: The box body (41) is provided with a first connecting pipe (25) and a second connecting pipe (26); two ends of the first connecting pipe (25) are respectively connected to a side of the first sealing strip (23) away from the door frame (11) and the first air cavity (43); two ends of the second connecting pipe (26) are respectively connected to a side of the second sealing strip (24) away from the door frame (11) and the second air cavity (44).

4. The heat-insulating steel door according to claim 2, characterized in that: The intake pipeline (31) is connected to a first intake manifold (32) and a second intake manifold (33); the first intake manifold (32) and the second intake manifold (33) are respectively connected to a first air cavity (43) and a second air cavity (44); the first intake manifold (32) is provided with a first intake check valve (34) for preventing gas from flowing to the intake pipeline (31); the second intake manifold (33) is provided with a second intake check valve (35) for preventing gas from flowing to the intake pipeline (31).

5. The heat-insulating steel door according to claim 2, characterized in that: The cooling pipeline (51) is provided with a first air supply manifold (52) and a second air supply manifold (53); the two ends of the first air supply manifold (52) are respectively connected to the first air cavity (43) and the cooling pipeline (51); the two ends of the second air supply manifold (53) are respectively connected to the second air cavity (44) and the cooling pipeline (51); the first air supply manifold (52) is provided with a first air supply check valve (54) for preventing gas from flowing to the first air cavity (43); the second air supply manifold (53) is provided with a second air supply check valve (55) for preventing gas from flowing to the second air cavity (44).

6. The heat-insulating steel door according to claim 2, characterized in that: The impeller (42) is fixedly connected to a driven pulley (45).

7. The heat-insulating steel door according to claim 6, characterized in that: The door panel (21) is fixedly mounted with a driving member (48), the output shaft of the driving member (48) is fixedly connected with a driving pulley (47), and a transmission belt (46) is wound between the driving pulley (47) and the driven pulley (45).

8. The heat-insulating steel door according to claim 1, characterized in that: The air outlet (22) passes through the door panel (21), and both ends of the air outlet (22) are detachably connected to sealing strips (29).

9. The heat-insulating steel door according to claim 1, characterized in that: The air outlet (22) is located at the lower end of the cooling pipeline (51).

10. The heat-insulating steel door according to claim 1, characterized in that: The cooling pipeline (51) is provided with a plurality of curved sections (56).

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