A manual swing door with fire prevention, sealing and air pressure adjustment

Abstract

This invention relates to the field of fire-resistant and airtight door technology, and in particular to a manually operated swing door that combines fire resistance, sealing, and air pressure regulation. It includes a fire-resistant door frame made of thermosetting resin-impregnated paper high-pressure laminate installed on the inner wall of a building entrance, and a swing door panel made of thermosetting resin-impregnated paper high-pressure laminate, hinged and movably assembled inside the fire-resistant door frame. The manually operated swing door of this invention, combining fire resistance, sealing, and air pressure regulation, features an embedded lateral airflow adjustment mechanism installed at the top corner of the fire-resistant door frame. This mechanism can draw air in from one side as needed and then discharge it through a strip-shaped air vent on the other side, thereby regulating the air pressure on both sides and enabling adjustment of positive and negative pressure, significantly enhancing its functionality.

Description

Technical Field

[0001] This invention relates to the field of fireproof and sealing door technology, and in particular to a manual swing door that combines fireproofing, sealing and air pressure regulation. Background Technology

[0002] Hinged doors are a widely used type of door, referring to doors with hinges mounted on the side that open inwards or outwards. They mainly consist of a door frame, hinges, door panels, and locks. They are widely installed at entrances and exits of various buildings.

[0003] However, current swing doors require gaps at the top and bottom for easy opening and closing, which severely reduces their airtightness. Current swing doors only provide limited isolation and sealing; they cannot regulate air pressure on both sides when closed, resulting in very limited functionality. Summary of the Invention

[0004] The technical problem that this invention aims to solve is that current swing doors can only provide limited isolation and sealing, and cannot regulate the air pressure on both sides when the swing door is closed, resulting in very limited functionality.

[0005] The technical solution adopted by this invention to solve its technical problem is: a manually operated swing door that takes into account fire prevention, sealing and air pressure regulation, including a fireproof door frame made of thermosetting resin impregnated paper high-pressure laminate installed on the inner wall of the building entrance and a swing door panel made of thermosetting resin impregnated paper high-pressure laminate that is movably assembled inside the fireproof door frame by hinges. An embedded lateral airflow adjustment mechanism is installed at the top corner of the fireproof door frame. Adjustable lateral airtight plates are symmetrically installed on the outer walls of both sides of the fireproof door frame. A built-in electronic control adjustment device for controlling the adjustable lateral airtight plates is installed inside the fireproof door frame. Strip-shaped air vents connected to the interior of the embedded lateral airflow adjustment mechanism are opened on the outer walls of both sides of the fireproof door frame.

[0006] The fire door frame has an embedded corner mounting groove at the top corner for installing an embedded lateral flow adjustment mechanism.

[0007] The embedded lateral airflow adjustment mechanism includes a mounting cover fixed inside the embedded angled assembly slot, an internal mounting frame fixed inside the mounting cover, an electrically controlled airflow guiding fan fixed inside the internal mounting frame, lateral air intakes opened on the outer walls of both sides of the mounting cover, an electrically controlled telescopic guide frame installed inside the lateral air intakes, and an external sealing cover fixed on the outer surface of the electrically controlled telescopic guide frame.

[0008] The fireproof door frame has symmetrically provided side-flipping storage slots on both outer walls, and an internal transmission channel connected to the inside of the side-flipping storage slots is provided inside the fireproof door frame.

[0009] The lateral flip storage slot has symmetrically arranged lateral mounting blind holes on both sides of its inner wall. The adjustable lateral airtight plate includes an external flip arm that is movably connected to the lateral flip storage slot by inserting a lateral rotating shaft into the lateral mounting blind hole and an external sealing cover that is elastically installed on the outer end of the external flip arm.

[0010] The built-in electronic control adjustment device includes a lateral adjustment motor installed inside the internal transmission channel, a transverse adjustment shaft axially fixed to the outer adjustment shaft of the lateral adjustment motor via a coupling, a lateral worm gear connected to one side of the transverse adjustment shaft via a bevel gear set, and a drive worm wheel axially fixed to the outer side of the lateral rotating shaft. The lateral adjustment motor is connected to the lateral worm gear and the drive worm wheel via the transverse adjustment shaft.

[0011] A detachable metal filter frame is fixed inside the outer opening of the strip-shaped air inlet.

[0012] The hinged door panel has symmetrical longitudinal telescopic extrusion grooves on both outer walls, and a transverse telescopic extrusion groove connected to the longitudinal telescopic extrusion grooves is provided on the lower surface of the hinged door panel.

[0013] The longitudinal telescopic extrusion groove is elastically fitted with a longitudinal telescopic extrusion frame, and the transverse telescopic extrusion groove is elastically fitted with a bottom telescopic extrusion frame that cooperates with the longitudinal telescopic extrusion frame. The bottom of the longitudinal telescopic extrusion frame and the two sides of the bottom telescopic extrusion frame are provided with cooperating lateral extrusion slopes.

[0014] An elastic adjustment rod is movably mounted on the inner side of the longitudinal telescopic extrusion frame. An external adjustment block for controlling the height of the longitudinal telescopic extrusion frame is axially sleeved on the outer side of the elastic adjustment rod. An internal control linkage for linkage control of the rotating wrench and the elastic adjustment rod is movably mounted inside the swing door panel.

[0015] The beneficial effects of this invention are: (1) The present invention provides a manual swing door that combines fire prevention, sealing and air pressure regulation. An embedded lateral flow adjustment mechanism is installed at the corner of the top of the fire door frame. It can draw in air from one side as needed and then discharge it from the strip-shaped air duct on the other side, thereby adjusting the air pressure on both sides and making it able to adjust positive and negative pressure, greatly enhancing its functionality. (2) Adjustable side airtight plates are symmetrically installed on the outer walls of both sides of the fire door frame. With the external sealing cover on the outer side of the electrically controlled telescopic guide frame, the outlet and inlet can be closed and sealed when the embedded side flow adjustment mechanism is running, so that the air flow direction can be easily adjusted and the operation mode is more diverse. (3) A longitudinal telescopic extrusion groove for internal installation of a longitudinal telescopic extrusion frame is symmetrically opened on the outer walls of both sides of the swing door panel, and a transverse telescopic extrusion groove for internal installation of a bottom telescopic extrusion frame is opened on the lower surface of the swing door panel. The lateral extrusion slopes on the bottom of the longitudinal telescopic extrusion frame and the two sides of the bottom telescopic extrusion frame are used for linkage control to improve the airtightness of the swing door when it is closed. (4) The lateral extrusion force generated during the flipping and closing can automatically control the longitudinal telescopic extrusion frame and the bottom telescopic extrusion frame, making operation convenient; (5) An internal electric control adjustment device is installed inside the fire door frame to control the adjustable side airtight plate. This device controls the strip air vents on the outer walls of both sides of the fire door frame, so that the gap between the swing door panel and the fire door frame can be closed when the door is closed, and the closure stability of both can be guaranteed. It can also be flipped and attached to both sides of the fire door frame when not in use, thereby closing the strip air vents. (6) By using the position-controllable adjustable side airtight plate, the flow rate and direction of the outer side of the strip air outlet can be controlled, thereby improving the safety and protection of the strip air outlet. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0017] Figure 1 This is a schematic diagram of the structure of the present invention.

[0018] Figure 2 This is a schematic diagram of the internal structure of the embedded lateral flow adjustment mechanism in this invention.

[0019] Figure 3 This is a schematic diagram of the internal structure of the built-in electronic control adjustment device in this invention.

[0020] Figure 4 This is a partial internal schematic diagram of the extrusion surfaces of the longitudinal and lateral telescopic extrusion frames and the bottom telescopic extrusion frame in this invention. Detailed Implementation

[0021] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the invention, and therefore only show the components relevant to the invention.

[0022] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0023] Figure 1 , Figure 2 , Figure 3 and Figure 4 The manual swing door shown here combines fire resistance, sealing and air pressure regulation. It includes a fireproof door frame 1 made of thermosetting resin impregnated paper high-pressure laminate installed on the inner wall of the building entrance and a swing door panel 2 made of thermosetting resin impregnated paper high-pressure laminate that is hinged and mounted inside the fireproof door frame 1. An embedded lateral airflow adjustment mechanism 3 is installed at the top corner of the fireproof door frame 1. Adjustable lateral airtight plates 4 are symmetrically installed on the outer walls of both sides of the fireproof door frame 1. A built-in electronic control adjustment device 5 for controlling the adjustable lateral airtight plates 4 is installed inside the fireproof door frame 1. Strip-shaped air vents 6 are opened on the outer walls of both sides of the fireproof door frame 1 and are connected to the interior of the embedded lateral airflow adjustment mechanism 3.

[0024] Working principle: When operating the swing door panel 2, after closing the swing door panel 2, if it is necessary to create negative pressure inside, then people only need to control the opening of the embedded side flow regulating mechanism 3 to open, and then open the strip-shaped air guide port 6 facing outward. Activate the embedded side flow regulating mechanism 3 to draw the internal air into the outside, and then use the adjustable side airtight plate 4 facing outward to close the outside. At this time, it can be ensured that the outside air will not flow into the inside. After the air pressure stabilizes and reaches the required level, close the opening of the embedded side flow regulating mechanism 3, and then use the adjustable side airtight plates 4 on both sides to squeeze and close the swing door panel 2 from both sides respectively. If positive pressure needs to be formed inside, then people only need to control the opening of the outward-facing embedded side flow adjustment mechanism 3 to open, and then open the strip-shaped air inlet 6 facing inward and outward to activate the embedded side flow adjustment mechanism 3 to draw the outside air into the inside. Then, the inside is closed by using the inward-facing adjustable side airtight plate 4. At this time, it can be ensured that the inside air will not flow into the outside. After the air pressure stabilizes and reaches the required level, the opening of the embedded side flow adjustment mechanism 3 is closed, and then the adjustable side airtight plates 4 on both sides are used to squeeze and close the swing door panel 2 from both sides. When people open the swing door panel 2, they first adjust the handle, then the openings on both sides of the embedded lateral airflow adjustment mechanism 3 open, and then the built-in electronic control adjustment device 5 controls the adjustable lateral airtight plate 4 to flip and reset, without affecting the normal opening of the swing door panel 2.

[0025] To facilitate lateral assembly, an embedded corner mounting slot for installing the embedded lateral flow regulating mechanism 3 is provided at the top corner of the fire door frame 1.

[0026] To facilitate airflow, the embedded lateral airflow adjustment mechanism 3 includes a mounting cover 31 fixed inside the embedded angled assembly slot, an internal mounting frame 32 fixed inside the mounting cover 31, an electrically controlled airflow fan 33 fixed inside the internal mounting frame 32, lateral air intake ports 34 opened on the outer walls of both sides of the mounting cover 31, an electrically controlled telescopic guide frame 35 installed inside the lateral air intake ports 34, and an external sealing cover 36 fixed on the outer surface of the electrically controlled telescopic guide frame 35.

[0027] The electrically controlled air guide fan 33 is existing technology. It draws air from outside the side air intake 34 into the mounting cover 31 by rotating at high speed, and then guides it into the strip air guide 6. The air is then discharged to the other side through the strip air guide 6.

[0028] To facilitate lateral and internal assembly, lateral flip-up storage slots 7 are symmetrically provided on the outer walls of both sides of the fire door frame 1, and an internal transmission flow channel 8 is provided inside the fire door frame 1 that is connected to the interior of the lateral flip-up storage slots 7.

[0029] To facilitate the adjustment of the seal, lateral mounting blind holes are symmetrically opened on the inner walls of both sides of the lateral flip storage groove 7. The adjustable lateral airtight plate 4 includes an external flip arm 41 that is movably connected to the lateral flip storage groove 7 by inserting a lateral rotating shaft into the lateral mounting blind hole, and an external sealing cover 42 that is elastically installed on the outer end of the external flip arm 41.

[0030] To facilitate internal electric control of the tilting mechanism, the built-in electric control adjustment device 5 includes a lateral adjustment motor 51 installed inside the internal transmission channel 8, a transverse adjustment shaft 52 axially fixed to the outer adjustment shaft of the lateral adjustment motor 51 via a coupling, a lateral worm 54 connected to one side of the transverse adjustment shaft 52 via a bevel gear set 53, and a drive worm wheel 55 axially fixed to the outer side of the lateral rotating shaft. The lateral adjustment motor 51 is connected to the transverse adjustment shaft 52, the lateral worm 54, and the drive worm wheel 55 via the transverse adjustment shaft 52.

[0031] The lateral adjustment motor 51 is existing technology. It drives the value adjustment shaft 52 to rotate, thereby controlling the rotation of the lateral worm gear 54. The lateral worm gear 54 then drives the drive worm wheel 55 to rotate, thereby controlling the rotation of the outer flip arm 41 and changing the position of the outer sealing cover 42. Regardless of whether the outer sealing cover 42 is in the uppermost or lowermost attached state, it can always ensure the closure of the external opening of the lateral flip storage slot 7.

[0032] To complement the external filtration, a detachable metal filter frame is snapped into place inside the outer opening of the strip-shaped air inlet 6.

[0033] To facilitate side assembly, longitudinal telescopic extrusion grooves 9 are symmetrically provided on the outer walls of both sides of the hinged door panel 2, and a transverse telescopic extrusion groove 10 connected to the longitudinal telescopic extrusion grooves 9 is provided on the lower surface of the hinged door panel 2.

[0034] In order to coordinate with the extrusion control, the longitudinal telescopic extrusion groove 9 is elastically fitted with a longitudinal telescopic extrusion frame 11, and the transverse telescopic extrusion groove 10 is elastically fitted with a bottom telescopic extrusion frame 12 that cooperates with the longitudinal telescopic extrusion frame 11. The bottom of the longitudinal telescopic extrusion frame 11 and the two sides of the bottom telescopic extrusion frame 12 are provided with corresponding lateral extrusion slopes 13.

[0035] Built-in compression springs are installed between the inner side of the longitudinal telescopic compression groove 9 and the inner side wall of the longitudinal telescopic compression frame 11, and between the inner side of the transverse telescopic compression groove 10 and the inner side wall of the bottom telescopic compression frame 12. These springs can automatically control the longitudinal telescopic compression frame 11 and the bottom telescopic compression frame 12 to elastically compress and reset outward.

[0036] When people close the swing door panel 2, the two sides of the swing door panel 2 will press against the inner wall of the fire door frame 1, and then the longitudinal telescopic compression frame 11 will be squeezed into the longitudinal telescopic compression groove 9. At the same time as the longitudinal telescopic compression frame 11 is squeezed into the longitudinal telescopic compression groove 9, the bottom telescopic compression frame 12 is squeezed by the lateral compression slope 13. Then the bottom telescopic compression frame 12 extends downward, which will close and seal the gap at the bottom. At this time, the built-in electronic control adjustment device 5 controls the adjustable lateral airtight plate 4 to flip downward, and the adjustable lateral airtight plate 4 closes the gap between the upper end of the swing door panel 2 and the fire door frame 1.

[0037] To facilitate linkage control, an elastic adjustment rod 14 is movably mounted on the inner side of the longitudinal telescopic compression frame 11. An external adjustment block 15 for controlling the height of the longitudinal telescopic compression frame 11 is axially sleeved on the outer side of the elastic adjustment rod 14. An internal control linkage 16 for linkage control of the rotary wrench and the elastic adjustment rod 14 is movably mounted inside the swing door panel 2.

[0038] When the wrench is rotated, the internal control linkage 16 connected between the wrench and the elastic adjustment rod 14 is adjusted longitudinally, thereby synchronously controlling the lifting and lowering of the elastic adjustment rod 14. This controls the longitudinal telescopic extrusion frame 11 to rise in the longitudinal telescopic extrusion groove 9. At this time, the lateral extrusion slope 13 at the bottom of the longitudinal telescopic extrusion frame 11 will separate from the two sides of the bottom telescopic extrusion frame 12, and the bottom telescopic extrusion frame 12 will retract upward into the horizontal telescopic extrusion groove 10.

[0039] Based on the above-described preferred embodiments of the present invention, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the inventive concept. The technical scope of this invention is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A pneumatic control device for a manually operated swing door, comprising a fireproof door frame (1) made of thermosetting resin impregnated paper high-pressure laminate installed on the inner wall of a building entrance and a swing door panel (2) made of thermosetting resin impregnated paper high-pressure laminate movably mounted inside the fireproof door frame (1) via hinges, characterized in that: An embedded lateral airflow adjustment mechanism (3) is installed at the top corner of the fireproof door frame (1). Adjustable lateral airtight plates (4) are symmetrically installed on the outer walls of both sides of the fireproof door frame (1). An internal electronic control adjustment device (5) for controlling the adjustable lateral airtight plates (4) is installed inside the fireproof door frame (1). A strip-shaped air vent (6) connected to the interior of the embedded lateral airflow adjustment mechanism (3) is opened on the outer walls of both sides of the fireproof door frame (1). The fireproof door frame (1) has symmetrically provided side-flipping storage grooves (7) on both outer walls, and the fireproof door frame (1) has an internal transmission flow channel (8) that is connected to the inside of the side-flipping storage grooves (7). The lateral flip storage slot (7) has symmetrically opened lateral mounting blind holes on both sides of its inner wall. The adjustable lateral airtight plate (4) includes an external flip arm (41) that is movably connected to the lateral flip storage slot by inserting a lateral rotating shaft into the lateral mounting blind hole and an external sealing cover (42) that is elastically installed on the outer end of the external flip arm (41). The hinged door panel (2) has symmetrical longitudinal telescopic extrusion grooves (9) on both sides of its outer wall, and a horizontal telescopic extrusion groove (10) connected to the longitudinal telescopic extrusion grooves (9) is provided on the lower surface of the hinged door panel (2). The longitudinal telescopic extrusion groove (9) is elastically fitted with a longitudinal telescopic extrusion frame (11), and the transverse telescopic extrusion groove (10) is elastically fitted with a bottom telescopic extrusion frame (12) that cooperates with the longitudinal telescopic extrusion frame (11). The bottom of the longitudinal telescopic extrusion frame (11) and the two sides of the bottom telescopic extrusion frame (12) are provided with matching lateral extrusion slopes (13). An elastic adjustment rod (14) is movably mounted on the inner side of the longitudinal telescopic extrusion frame (11). An external adjustment block (15) for controlling the height of the longitudinal telescopic extrusion frame (11) is axially sleeved on the outer side of the elastic adjustment rod (14). An internal control linkage (16) for linking control of the rotating wrench and the elastic adjustment rod (14) is movably mounted inside the swing door panel (2).

2. The air pressure regulating device for a manually operated vertical hinged door according to claim 1, wherein: The fire door frame (1) has an embedded corner mounting groove at the top corner for installing the embedded side flow adjustment mechanism (3).

3. The air pressure regulating device for a manually operated vertical hinged door according to claim 2, wherein: The embedded lateral flow adjustment mechanism (3) includes a mounting cover (31) fixed inside the embedded angle assembly slot, an internal mounting frame (32) fixed inside the mounting cover (31), an electrically controlled flow guide fan (33) fixed inside the internal mounting frame (32), lateral air intakes (34) opened on the outer walls of both sides of the mounting cover (31), an electrically controlled telescopic guide frame (35) installed inside the lateral air intake (34), and an external sealing cover (36) fixed on the outer side of the electrically controlled telescopic guide frame (35).

4. The air pressure regulating device for a manually operated vertical hinged door according to claim 1, wherein: The built-in electronic control adjustment device (5) includes a lateral adjustment motor (51) installed inside the internal transmission channel, a transverse adjustment shaft (52) axially fixed to the outer adjustment shaft of the lateral adjustment motor (51) via a coupling, a lateral worm (54) connected to one side of the transverse adjustment shaft (52) via a bevel gear set (53), and a drive worm wheel (55) axially fixed to the outer side of the lateral rotation shaft. The lateral adjustment motor (51) is connected to the lateral worm (54) and the drive worm wheel (55) via the transverse adjustment shaft (52).

5. The air pressure regulating device for a manually operated vertical hinged door according to claim 1, wherein: The outer opening of the strip-shaped air inlet (6) is fitted with a detachable metal filter frame.

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