Steel fireproof and soundproof door

Abstract

The utility model discloses a steel fireproof soundproof door, and particularly relates to the technical field of fireproof soundproof doors, the steel fireproof soundproof door comprises a door frame, the outer side of the door frame is rotatably connected with a steel door body through a plurality of fireproof hinges, the outer side of the steel door body is provided with a clamping groove, and the outer side of the door frame is respectively provided with a smoke sensor and an alarm. A groove is formed in the door frame, a rack is connected into the groove in a sliding mode, and a first spring is jointly installed between the outer side of the rack and the side wall of the groove. When the door is used, operation is easy, locking of the door frame and the steel door body can be achieved, and the door cannot be opened easily; therefore, a panic person can conveniently check the mark to remind and inform people of not opening the fireproof and soundproof door in case of a fire, and can open the steel door body in case of an emergency, so that the sealing performance and the soundproof effect of the door are improved, and the fireproof and soundproof door is suitable for areas such as studios, music halls, conference rooms and libraries with higher requirements on fire fighting and soundproof.

Description

Technical Field

[0001] The utility model relates to the technical field of fireproof and soundproof doors, and more specifically, to a steel fireproof and soundproof door. Background Art

[0002] Fire and soundproof doors are special doors that combine fireproofing and soundproofing. Made from flame-retardant and sound-insulating materials, they can prevent the spread of fire and reduce sound transmission for a limited period of time. In the event of a fire, they effectively block fire and smoke, buying time for evacuation and protecting life and property.

[0003] Existing fireproof and soundproof doors usually use door closers to keep them closed, thereby preventing the spread of fire. However, door closers cannot completely lock the doors. When a fire occurs, due to the emergency situation on site and the lack of systematic fire emergency training, some people do not know that fire doors should be kept closed to prevent the spread of fire. Instead, they instinctively want to find an exit or flee the scene, and mistakenly open the door, causing the fire to spread faster, destroying the fire compartment, increasing the degree of fire damage and the difficulty of rescue. At the same time, after the door is mistakenly opened, smoke and flames may quickly spread to previously relatively safe areas, threatening the lives of more people. At the same time, most general fireproof and soundproof doors adopt a single-slot design with limited sealing performance, resulting in poor sound insulation effect, which is difficult to meet the needs of venues with high sound insulation requirements such as studios and concert halls. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, an embodiment of the present invention provides a steel fireproof and soundproof door. The technical problem to be solved by the present invention is that the door closer cannot completely lock the door. When a fire occurs, panicked people may easily open the door by mistake, causing the fire to spread faster. At the same time, most general fireproof and soundproof doors adopt a single-slot design with limited sealing performance, resulting in poor sound insulation effect, which is difficult to meet the needs of places with high sound insulation requirements such as studios and concert halls.

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

[0006] A steel fireproof and soundproof door comprises a door frame, the outer side of the door frame is rotatably connected to a steel door body via a plurality of fireproof hinges, a slot is provided on the outer side of the steel door body, a smoke sensor and an alarm are respectively installed on the outer side of the door frame, a groove is provided in the door frame, a rack is slidably connected in the groove, a first spring is commonly installed between the outer side of the rack and the side wall of the groove, a rotating shaft is rotatably connected to the inner wall of the groove, a gear is elastically slidably connected in the rotating shaft, and the gear is meshed with the rack, a pressing column is fixedly installed on the outer side of the gear, two notches are provided on the inner side of the door frame, and each of the notches is filled with a sealing strip.

[0007] like Figure 1-4 As shown, the specific implementation method is: by arranging a rack, a slot, and a gear, when a fire occurs, the gear rotates to drive the rack to be locked in the slot, thereby completing the locking of the door frame and the steel door body. When panicked people try to open the door, the rack blocks the door and prevents it from being easily opened, making it easier for panicked people to check the signs and reminders to inform people not to open the fireproof and soundproof door in case of fire. The double-slot design can greatly improve the sealing performance of the door and effectively reduce the transmission of sound.

[0008] In a preferred embodiment, a slide rail is fixedly installed in the groove, and the rack is slidably connected in the slide rail.

[0009] In a preferred embodiment, a sliding column is slidably connected in the rotating shaft, a second spring is installed between the bottom surface of the sliding column and the bottom wall of the rotating shaft, and the top surface of the sliding column is fixedly connected to the bottom surface of the gear.

[0010] In a preferred embodiment, a square sliding groove is provided in the rotating shaft, and each side surface of the sliding column is in contact with the side wall of the square sliding groove.

[0011] In a preferred embodiment, a motor is fixedly mounted on the side wall of the groove, and the output shaft of the motor is connected to the rotating shaft. A protective plate is fixedly mounted on the outer side of the door frame by bolts, and the pressing column passes through the protective plate and extends outward.

[0012] In a preferred embodiment, a rib is fixedly installed on the inner side of the door frame and the outer side of the steel door body, a fire-retardant sealing strip is installed on each of the ribs, and a handle is fixedly installed on the outer side of the steel door body.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] 1. The utility model is provided with a motor, a rotating shaft, a sliding column, a gear, a rack and other devices, so that when a fire occurs, the motor can be self-started to drive the rotating shaft to rotate, so that the gear and the rack are engaged, driving the gear to slide, thereby inserting it into the card slot of the steel door body, thereby locking the door frame and the steel door body, making it impossible to open the door easily, thereby making it easier for panicked people to check the sign to remind people not to open the fireproof and soundproof door in case of fire.

[0015] 2. The utility model realizes applying external force to the pressing column by setting devices such as a pressing column, a first spring, a second spring, and a sliding column, thereby driving the sliding column to slide inward, causing the gear to disengage from the rack, and then the rack is reset under the action of the first spring, and the rack disengages from the slot, so that the steel door body can be reopened to facilitate the purpose of responding to emergency situations where the steel door body needs to be opened.

[0016] 3. By incorporating notches and other devices, this utility model achieves a significantly improved sealing performance through the use of sealing strips within the double notches. This design significantly reduces sound transmission by increasing the number of barriers and reflections required during sound transmission. This design achieves a sound insulation rating exceeding 50 decibels, significantly superior to traditional single-notch fireproof and soundproof doors.

[0017] To sum up, the utility model is easy to operate when in use, and can lock the door frame and the steel door body, so that the door cannot be easily opened, thereby making it convenient for panicked people to check the signs to remind people not to open the fireproof and soundproof door in case of fire. At the same time, in an emergency, the steel door body can also be opened, while increasing the sealing performance and sound insulation effect of the door. It is suitable for areas with high requirements for fire protection and sound insulation, such as studios, concert halls, conference rooms, libraries, etc. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a structural diagram of a steel fireproof and soundproof door proposed in the utility model;

[0019] Figure 2 This is a schematic diagram of the notch structure of a steel fireproof and soundproof door proposed in the utility model;

[0020] Figure 3 This is a schematic diagram of the rack installation structure of a steel fireproof and soundproof door proposed in the utility model;

[0021] Figure 4 This is a structural schematic diagram of the installation of a sliding column for a steel fireproof and soundproof door proposed by the present invention.

[0022] In the figure: 1 door frame, 2 sidewall, 3 steel door body, 4 fireproof hinge, 5 handle, 6 slot, 7 smoke sensor, 8 alarm, 9 pressure column, 10 protective plate, 11 notch, 12 motor, 13 slide rail, 14 rack, 15 first spring, 16 gear, 17 slide column, 18 shaft, 19 second spring, 20 groove. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] Reference Figure 1-4A steel fireproof and soundproof door comprises a door frame 1, the outer side of the door frame 1 is rotatably connected to a steel door body 3 through a plurality of fireproof hinges 4, a card slot 6 is provided on the outer side of the steel door body 3, a smoke sensor 7 and an alarm 8 are respectively installed on the outer side of the door frame 1, a groove 20 is provided in the door frame 1, a rack 14 is slidably connected in the groove 20, a first spring 15 is jointly installed between the outer side of the rack 14 and the side wall of the groove 20, a rotating shaft 18 is rotatably connected to the inner wall of the groove 20, a gear 16 is elastically slidably connected in the rotating shaft 18, and the gear 16 is meshed with the rack 14, a pressing column 9 is fixedly installed on the outer side of the gear 16, and two notches 11 are provided on the inner side of the door frame 1, each of which is filled with a sealing strip.

[0025] like Figure 1-4 As shown, the specific implementation method is: by setting a rack 14, a slot 6, and a gear 16, when a fire occurs, the gear 16 rotates to drive the rack 14 to be locked in the slot 6, thereby completing the locking of the door frame 1 and the steel door body 3. When panicked people try to open the door, the rack 14 blocks the door and prevents it from being easily opened, making it easier for panicked people to check the signs and reminders to inform people not to open the fireproof and soundproof door 3 in case of fire.

[0026] The slide rail 13 is fixedly installed in the groove 20 , and the rack 14 is slidably connected in the slide rail 13 .

[0027] When passing through the slide rail 13 , the rack 14 moves more smoothly and avoids deviation.

[0028] A slide post 17 is slidably connected in the rotating shaft 18 , a second spring 19 is installed between the bottom surface of the slide post 17 and the bottom wall of the rotating shaft 18 , and the top surface of the slide post 17 is fixedly connected to the bottom surface of the gear 16 .

[0029] The second spring 19 allows the gear 16 to always be meshed with the rack 14 without receiving any external force.

[0030] A square slot is defined in the rotating shaft 18 , and each side surface of the slide post 17 fits in contact with the sidewall of the square slot.

[0031] The slide post 17 is limited by the square slide groove so that when the rotating shaft 18 rotates, the gear 16 installed on the slide post 17 can be driven to rotate synchronously.

[0032] The motor 12 is fixedly mounted on the side wall of the groove 20 , and the output shaft of the motor 12 is connected to the rotating shaft 18 . The protective plate 10 is fixedly mounted on the outside of the door frame 1 by bolts, and the pressing column 9 passes through the protective plate 10 and extends outward.

[0033] The internal components are hidden and protected by the protective plate 10 .

[0034] A retaining edge 2 is fixedly installed on the inner side of the door frame 1 and the outer side of the steel door body 3. A fire-retardant sealing strip is installed on each retaining edge 2. A handle 5 is fixedly installed on the outer side of the steel door body 3.

[0035] When the present invention is used, when a fire occurs, the smoke sensor 7 will sense the smoke and transmit an electrical signal to the alarm 8 to issue an early warning, and transmit the electrical signal to the motor 12, which rotates the gear 16 through the setting of the rotating shaft 18 and the sliding column 17, and meshes with the gear 16 through the rack 14, driving the rack 14 to slide outward and insert into the card slot 6, thereby locking the door frame 1 and the steel door body 3, preventing panicked people from directly opening the door and causing the fire to spread;

[0036] At the same time, when an emergency occurs and the door needs to be opened, force can be applied to the pressing column 9 to make it slide inward, compressing the second spring 19, thereby driving the sliding column 17 to slide inward and causing the gear 16 to disengage from the rack 14. Then, the rack 14 is reset under the action of the first spring 15, thereby disengaging from the slot 6. At this time, the steel door body 3 can be reopened.

[0037] The above description is merely illustrative of certain exemplary embodiments of the present invention. It goes without saying that those skilled in the art will be able to modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and description are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A steel fireproof and soundproof door, comprising a door frame (1), characterized in that: The outer side of the door frame (1) is rotatably connected to a steel door body (3) through a plurality of fireproof hinges (4), the outer side of the steel door body (3) is provided with a slot (6), the outer side of the door frame (1) is respectively installed with a smoke sensor (7) and an alarm (8), a groove (20) is provided in the door frame (1), a rack (14) is slidably connected in the groove (20), a first spring (15) is installed between the outer side of the rack (14) and the side wall of the groove (20), the inner wall of the groove (20) is rotatably connected to a rotating shaft (18), a gear (16) is elastically slidably connected in the rotating shaft (18), and the gear (16) is meshed with the rack (14), a pressing column (9) is fixedly installed on the outer side of the gear (16), and two notches (11) are provided on the inner side of the door frame (1), and each notch (11) is filled with a sealing strip.

2. A steel fireproof and soundproof door according to claim 1, characterized in that: A slide rail (13) is fixedly installed in the groove (20), and the rack (14) is slidably connected in the slide rail (13).

3. The steel fireproof and soundproof door according to claim 2, characterized in that: A sliding column (17) is slidably connected inside the rotating shaft (18), a second spring (19) is installed between the bottom surface of the sliding column (17) and the bottom wall of the rotating shaft (18), and the top surface of the sliding column (17) is fixedly connected to the bottom surface of the gear (16).

4. The steel fireproof and soundproof door according to claim 3, characterized in that: A square slide groove is provided in the rotating shaft (18), and each side surface of the slide column (17) is fitted with a side wall of the square slide groove.

5. The steel fireproof and soundproof door according to claim 4, characterized in that: A motor (12) is fixedly mounted on the side wall of the groove (20), and the output shaft of the motor (12) is connected to the rotating shaft (18). A protective plate (10) is fixedly mounted on the outside of the door frame (1) by bolts, and a pressing column (9) passes through the protective plate (10) and extends outward.

6. The steel fireproof and soundproof door according to claim 5, characterized in that: A retaining edge (2) is fixedly mounted on the inner side of the door frame (1) and the outer side of the steel door body (3), a fire-retardant sealing strip is mounted on each retaining edge (2), and a handle (5) is fixedly mounted on the outer side of the steel door body (3).

Images