Connecting device of civil engineering air duct

Abstract

The utility model relates to a connecting device of a civil engineering air duct, the connecting device of the civil engineering air duct comprises an evacuation staircase, one side of the evacuation staircase is provided with an air supply transfer unit, and the air supply transfer unit is provided with an air supply piece used for supplying air to the evacuation staircase; the air supply transfer unit is provided with an air supply outlet used for being communicated with an evacuation staircase. The air supply transfer unit is arranged to serve as the air outlet of the air supply pipe of output of the non-human-defense-area pressurization air supplement machine, the pressurization air supplement machine is arranged in the non-human-defense-area air supplement machine room adjacent to the evacuation staircase, and the pressurization air feeder is arranged nearby, so that the air pipe is short, the type selection air pressure is small, and the power consumption is small; and the effective utilization area of the overground building is saved.

Description

Technical Field

[0001] The present application relates to the technical field of stairwell ventilation, and in particular to a connecting device for civil engineering air ducts. Background Art

[0002] An evacuation stairwell is a stairwell specifically designed for evacuating people in an emergency, and is commonly found in high-rise buildings and public places. The main function of an evacuation stairwell is to provide a safe escape route for people in the event of an emergency such as a fire or earthquake. Evacuation stairwells are usually constructed with fireproof materials, and doors and windows are also fireproof to ensure adequate fire protection in the event of a fire. Evacuation stairwells are usually relatively independent from other parts of the building and separated from other areas by fire doors to prevent the intrusion of smoke and flames. Evacuation stairwells are usually designed with ventilation and smoke exhaust methods to ensure that smoke can be quickly discharged in the event of a fire, providing fresh air for escaping people. They are equipped with emergency lighting methods to provide lighting in the event of a power outage, ensuring that people can see the escape route clearly. The stairwells are equipped with obvious evacuation signs and escape route maps to help people quickly find the evacuation exit in an emergency.

[0003] However, when the evacuation stairwell is set in the middle of the civil defense area in the basement and the stairwell cannot be naturally ventilated, the civil defense area in the conventional design cannot be equipped with a pressurized air supply method to supply air to it. It can only be connected to the basement evacuation stairwell through the ground air duct and vertical shaft through the mechanical pressurized air supply method on the ground in the non-civil defense area. Utility Model Content

[0004] Based on this, in order to simplify the setting method of the smoke prevention system of the evacuation stairwell in the civil air defense area, a connection device for the civil engineering air duct is provided.

[0005] In a first aspect, the present application provides a connecting device for a civil engineering air duct, comprising:

[0006] The connection devices of civil engineering air duct include:

[0007] An evacuation stairwell is provided with an air supply transfer unit on one side of the evacuation stairwell, the air supply transfer unit is provided with an air supply part for supplying air to the evacuation stairwell, and the air supply transfer unit is provided with an air supply port for connecting to the evacuation stairwell.

[0008] In one embodiment, the air supply member includes:

[0009] A pressurized air blower is arranged in the air supply room, and the air outlet of the pressurized air blower is connected to an air supply pipe. The end of the air supply pipe away from the air supply room is connected to the air supply transfer unit. The air supply transfer unit is connected to the evacuation stairwell through an air supply hole. The air supply hole is used to transport the airflow from the air supply pipe to the air supply transfer unit to the evacuation stairwell.

[0010] The connecting device of the civil construction air duct also includes:

[0011] The fireproofing member is used to prevent the fire from spreading after the fire occurs. The fireproofing member includes a fire wall. The fire wall passes through the air supply transfer unit and is arranged on the outside of the evacuation stairwell.

[0012] In one embodiment, the fireproof element further comprises:

[0013] A fire door is provided for connecting the air supply transfer unit and the civil defense area. The fire wall is also provided with a civil defense door for connecting the fire wall to separate the air supply transfer unit.

[0014] In one embodiment, the connecting device of the civil air duct further comprises:

[0015] The air supply hood is arranged at one end of the air supply pipe away from the pressurized air supply fan in the non-civil defense area through a fixing part. The cross-section of the air supply hood is set to be trapezoidal. The diameter of the cross-sectional area corresponding to the end of the air supply hood facing the air supply transfer unit is smaller than the diameter of the cross-sectional area corresponding to the end of the air supply hood facing away from the air supply transfer unit.

[0016] In one embodiment, the fixing member includes:

[0017] An elastic sheet is arranged on the outer edge of the air supply hood, and a fixed block is provided at one end of the elastic sheet away from the air supply hood. An air supply hole matching the size of the air supply hood is provided on the side wall of the air supply transfer unit, and a fixing groove matching the size of the fixed block is provided on the hole wall of the air supply hole. The fixed block is tightly pressed in the fixing groove, and the air supply hood and the hole wall of the air supply hole are pressed against each other.

[0018] In one embodiment, the connecting device of the civil air duct further comprises:

[0019] The air supply fan is rotatably connected to the air supply port, and the air supply transfer unit is provided with a driving motor for driving the air supply fan to rotate.

[0020] In one embodiment, the connecting device of the civil air duct further comprises:

[0021] The air supply frame is threadedly connected to the hole wall of the air supply hole, the air supply frame is rotatably connected to a rotating rod, the rotating rod is fixedly connected to the fan blades of the air supply fan, and the output end of the drive motor is connected to the rotating rod.

[0022] The connecting device of the civil engineering air duct includes: an evacuation stairwell, an air supply transfer unit is provided on one side of the evacuation stairwell, an air supply part for supplying air to the evacuation stairwell is provided on the air supply transfer unit, and an air supply port for connecting the evacuation stairwell is opened on the air supply transfer unit. The present application sets the air supply transfer unit as the outlet of the air supply duct of the non-civil defense zone pressurized air supply fan, and sets the pressurized air supply fan in the non-civil defense zone air supply machine room adjacent to the evacuation stairwell. The pressurized air supply fan is set nearby, which not only shortens the air duct, reduces the selected wind pressure, and consumes less power, but also saves the effective utilization area of the ground building. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the conventional technology, the following briefly introduces the drawings required for use in the embodiments or the conventional technology descriptions. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0024] Figure 1 This is a schematic structural diagram of a connecting device for civil air ducts in some embodiments of the present application;

[0025] Figure 2 for Figure 1 Enlarged schematic diagram of point A in the middle.

[0026] 100. Evacuation stairwell; 200. Air supply transfer unit; 300. Air supply components; 310. Pressurized air supply fan in non-civil defense area; 320. Air supply duct; 330. Air supply outlet; 400. Fireproof components; 410. Fire wall; 420. Fire door; 430. Civil defense door; 500. Wartime demarcation line; 600. Peacetime air supply fan in civil defense area. DETAILED DESCRIPTION

[0027] To make the above-mentioned objects, features, and advantages of the present application more clearly understood, the specific embodiments of the present application are described in detail below with reference to the accompanying drawings. The following description sets forth many specific details to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways than those described herein, and those skilled in the art can make similar improvements without violating the scope of the present application. Therefore, the present application is not limited to the specific embodiments disclosed below.

[0028] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0029] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of such features. Throughout the description of this application, "plurality" means at least two, for example, two, three, etc., unless otherwise specifically defined.

[0030] In this application, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in this application based on specific circumstances.

[0031] In this application, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0032] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be an intermediate element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only implementation methods.

[0033] Reference Figure 1 An air supply room for the civil defense area is set up in the civil defense area, and an air supply room for the non-civil defense area is set up at the other end of the air supply room. The air supply room for the civil defense area and the air supply room for the non-civil defense area are arranged opposite to each other, and an evacuation stairwell 100 is set between the air supply room for the civil defense area and the air supply room for the non-civil defense area. One end of the evacuation stairwell 100 is set along the wartime dividing line 500, and the evacuation stairwell 100 extends into the civil defense area, and an air supply transfer unit 200 is set adjacent to the side of the evacuation stairwell 100 facing the air supply room for the non-civil defense area.

[0034] In order to solve the problem in the related art that when the evacuation stairwell 100 is set in the middle of the civil defense area of the basement, and the stairwell cannot be naturally ventilated, the civil defense area cannot be set with a pressurized air supply method to supply air to it, and can only be connected to the side of the basement evacuation stairwell 100 through the ground air duct and the vertical shaft through the mechanical pressurized air supply method on the ground of the non-civil defense area, firstly, an embodiment of the present application provides a pressurized air supply device for the evacuation stairwell 100 in the civil defense area, with reference to Figure 1 and Figure 2 The pressurized air supply device for the evacuation stairwell 100 in the civil air defense area includes:

[0035] The evacuation stairwell 100 is provided with an air supply transfer unit 200 on the side of the evacuation stairwell 100 facing the non-civil defense area air supply room. The air supply transfer unit 200 is arranged adjacent to the evacuation stairwell 100. The air supply transfer unit 200 is provided with an air supply part 300 for supplying air to the evacuation stairwell 100. The air supply transfer unit 200 is provided with an air supply port 330 for connecting to the evacuation stairwell 100. The air supply part 300 supplies air to the evacuation stairwell 100 through the air supply port 330.

[0036] In this embodiment, by setting the air supply transfer unit 200 as the outlet of the air supply duct 320 of the non-civil defense area pressurized air supply fan, and by setting the pressurized air supply fan in the non-civil defense area air supply machine room adjacent to the evacuation stairwell 100, the pressurized air supply fan is set nearby, not only the air duct is short, the selected wind pressure is small, the power consumption is small, but also the effective utilization area of the ground building is saved.

[0037] Reference Figure 1In some embodiments, the specific configuration of the air supply member 300 may include:

[0038] A pressurized air blower is arranged in the air supply room. The air outlet of the pressurized air blower is connected to the air supply pipe 320. The end of the air supply pipe 320 away from the air supply room is connected to the air supply transfer unit 200. The air supply transfer unit 200 is connected to the evacuation stairwell 100 through the air supply hole. The air supply hole is used to transport the airflow from the air supply pipe 320 to the air supply transfer unit 200 to the evacuation stairwell 100.

[0039] Among them, the pressurized air supply fan can be detachably connected in the air supply room, one end of the air supply pipe 320 is set at the air outlet of the pressurized air supply fan, and the air supply pipe 320 passes through the air supply room in the non-civil defense area and extends to the air supply transfer unit 200. The air supply transfer unit 200 is provided with an air supply hole for transmitting the airflow in the air supply transfer unit 200 to the evacuation stairwell 100.

[0040] In this embodiment, by setting the air supply transfer unit 200 as the outlet of the air supply duct 320 of the non-civil defense area pressurized air supply fan, and by setting the pressurized air supply fan in the non-civil defense area air supply machine room adjacent to the evacuation stairwell 100, the pressurized air supply fan is set nearby, not only the air duct is short, the selected wind pressure is small, the power consumption is small, but also the effective utilization area of the ground building is saved.

[0041] Reference Figure 1 and Figure 2 In some embodiments, the pressurized air supply device of the evacuation stairwell 100 in the civil defense zone further includes a fireproof component 400, which specifically includes:

[0042] The fire wall 410 and the fireproof part 400 are used to prevent the fire from spreading after the fire occurs. The fire wall 410 passes through the air supply transfer unit 200 and is arranged on the outside of the evacuation stairwell 100. A fire door 420 is rotatably connected to the fire wall 410. The fire door 420 is used to connect the air supply transfer unit 200 and the civil defense area. The fire wall 410 is also provided with a civil defense door 430 for connecting the fire wall 410 to separate the air supply transfer unit 200.

[0043] In this embodiment, by setting up a firewall 410, the possibility of loopholes in the fire protection performance of the civil defense area due to the setting of the air supply transfer unit 200 is reduced, thereby improving the fire protection effect of the air supply transfer unit 200. By setting up a fire door 420 and a civil defense door 430, not only the flow performance between the air supply transfer unit 200 and the civil defense area is increased, but also it is ensured that the airflow output by the pressurized air supply fan 310 in the non-civil defense area can be transported to the evacuation stairwell 100 through the air supply component 300.

[0044] In some embodiments, the pressurized air supply device of the evacuation stairwell 100 in the civil defense zone further includes:

[0045] The air supply hood is arranged at one end of the air supply pipe 320 away from the non-civil defense area pressurized air supply fan 310 through a fixing part. The cross-section of the air supply hood is set to be trapezoidal, and the diameter of the cross-sectional area corresponding to the end of the air supply hood facing the air supply transfer unit 200 is smaller than the diameter of the cross-sectional area corresponding to the end of the air supply hood facing away from the air supply transfer unit 200.

[0046] In this embodiment, by providing an air supply hood, when the air flow passes through the air supply port 330, it is squeezed by the air supply hood and becomes an air flow with a fast flow rate after being squeezed through the air supply hood, thereby further increasing the air flow efficiency of the evacuation stairwell 100, thereby improving the air supply efficiency of the evacuation stairwell 100.

[0047] In some embodiments, the fixing member specifically includes:

[0048] An elastic sheet, one end of which is fixedly connected to the outer edge of the air supply hood, and one end of the elastic sheet away from the air supply hood is fixedly connected to a fixed block, an air supply hole matching the size of the air supply hood is provided on the side wall of the air supply transfer unit 200, and a fixing groove matching the size of the fixed block is provided on the hole wall of the air supply hole, the fixed block is pressed tightly in the fixing groove, and the air supply hood and the hole wall of the air supply hole are pressed tightly against each other.

[0049] In this embodiment, when the air supply hood needs to be installed, the staff can bend the elastic sheet until it is close to the outer edge of the air supply hood by pressing the fixing block, and push the air supply hood along the air supply hole until the fixing block moves to align with the fixing groove. Under the elastic force of the elastic sheet, the fixing block is pressed tightly in the fixing groove, reducing the possibility of the air supply hood detaching from the air supply hole under the action of external force, thereby improving the connection stability between the air supply hood and the air supply hole.

[0050] In some embodiments, the pressurized air supply device of the evacuation stairwell 100 in the civil defense area also includes: a supply fan, which is rotatably connected in the air supply port 330, and the air supply transfer unit 200 is provided with a drive motor for driving the supply fan to rotate. The supply fan is also connected to an air supply frame, and the air supply frame is threadedly connected to the hole wall of the air supply hole. A rotating rod is rotatably connected to the air supply frame, and the rotating rod is fixedly connected to the blades of the supply fan, and the output end of the drive motor is connected to the rotating rod.

[0051] In this embodiment, when the supply fan needs to be installed, the air supply frame is first fixedly connected to the air supply port 330. Considering that an air supply cover is also provided in the air supply port 330, the air supply frame can be installed in the air supply cover, and then the rotating rod is rotatably connected to the air supply frame. By fixing the rotating rod to the blades of the supply fan, the rotation of the rotating rod drives the blades of the supply fan to rotate. The end of the rotating rod away from the supply fan is connected to the output end of the driving motor, so that the user can drive the rotating rod to rotate by starting the driving motor, and then drive the blades to rotate, so that the supply fan can transport the airflow in the air supply transfer unit 200 to the evacuation stairwell 100 through the supply fan, thereby further increasing the ventilation efficiency of the stairwell.

[0052] This application sets up an air supply transfer unit 200 as the outlet of the air supply duct 320 of the non-civil defense area pressurized air supply fan, and sets the pressurized air supply fan in the non-civil defense area air supply machine room adjacent to the evacuation stairwell 100. The pressurized air supply fan is set nearby, which not only shortens the air duct, reduces the selected wind pressure, and consumes less power, but also saves the effective utilization area of the ground building.

[0053] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0054] The above-described embodiments merely represent several implementation methods of the present application. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that a person of ordinary skill in the art may make various modifications and improvements without departing from the spirit of the present application, and these modifications and improvements fall within the scope of protection of the present application. Therefore, the scope of protection of the present patent application shall be determined by the appended claims.

Claims

1. A connecting device for civil engineering air ducts, characterized in that: The connecting device of the civil construction air duct includes: An evacuation stairwell, wherein an air supply transfer unit is provided on one side of the evacuation stairwell, the air supply transfer unit is provided with an air supply member for supplying air to the evacuation stairwell, and the air supply transfer unit is provided with an air supply port for connecting to the evacuation stairwell; The air supply component includes a pressurized air supply fan, which is arranged in the air supply room. The air outlet of the pressurized air supply fan is connected to an air supply pipe. The end of the air supply pipe away from the air supply room is connected to the air supply transfer unit. The air supply transfer unit is connected to the evacuation stairwell through an air supply hole. The air supply hole is used to transport the airflow from the air supply pipe to the air supply transfer unit to the evacuation stairwell.

2. The connecting device for civil engineering air duct according to claim 1, characterized in that: The connecting device of the civil construction air duct also includes: The fireproofing member is used to prevent the fire from spreading after the fire occurs. The fireproofing member includes a fire wall. The fire wall passes through the air supply transfer unit and is arranged on the outside of the evacuation stairwell.

3. The connecting device for civil engineering air duct according to claim 2, characterized in that: The fireproofing member further comprises: A fire door is provided for connecting the air supply transfer unit and the civil defense area. The fire wall is also provided with a civil defense door for connecting the fire wall to separate the air supply transfer unit.

4. The connecting device for civil engineering air duct according to claim 1, characterized in that: The connecting device of the civil construction air duct also includes: The air supply hood is arranged at one end of the air supply pipe away from the pressurized air supply fan in the non-civil defense area through a fixing part. The cross-section of the air supply hood is set to be trapezoidal. The diameter of the cross-sectional area corresponding to the end of the air supply hood facing the air supply transfer unit is smaller than the diameter of the cross-sectional area corresponding to the end of the air supply hood facing away from the air supply transfer unit.

5. The connecting device for civil engineering air duct according to claim 4, characterized in that: The fixing member includes: An elastic sheet is arranged on the outer edge of the air supply hood, and a fixed block is provided at one end of the elastic sheet away from the air supply hood. An air supply hole matching the size of the air supply hood is provided on the side wall of the air supply transfer unit, and a fixing groove matching the size of the fixed block is provided on the hole wall of the air supply hole. The fixed block is tightly pressed in the fixing groove, and the air supply hood and the hole wall of the air supply hole are pressed against each other.

6. The connecting device for civil engineering air duct according to claim 5, characterized in that: The connecting device of the civil construction air duct also includes: The air supply fan is rotatably connected to the air supply port, and the air supply transfer unit is provided with a driving motor for driving the air supply fan to rotate.

7. The connecting device for civil engineering air duct according to claim 6, characterized in that: The connecting device of the civil construction air duct also includes: The air supply frame is threadedly connected to the hole wall of the air supply hole, the air supply frame is rotatably connected to a rotating rod, the rotating rod is fixedly connected to the fan blades of the air supply fan, and the output end of the drive motor is connected to the rotating rod.

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