CN221442425U - A smoke-proof structure for steel fire doors - Google Patents

Abstract

The utility model provides a smoke-proof structure of a steel fireproof door. The smoke protection structure of steel fire door includes: the fireproof door comprises a fireproof door body hinged in a door frame, a rotating rod is rotatably installed on the fireproof door body, the rotating rod penetrates through the fireproof door body, a rotating adjusting plate is fixedly sleeved on the rotating rod, four arc-shaped openings are formed in the outer wall of the rotating adjusting plate, two transverse adjusting plates and two longitudinal adjusting plates are arranged on the fireproof door body, and transverse pressing plates are fixedly installed on the outer wall of one side, away from each other, of the transverse adjusting plates. The smoke-proof structure of the steel fireproof door has the advantages of being convenient to use, blocking gaps between the fireproof door and the door frame, and preventing smoke and toxic gas from overflowing to the outside.

Description

Smoke protection structure of steel fireproof door

Technical Field

The utility model relates to the technical field of fireproof doors, in particular to a smoke prevention structure of a steel fireproof door.

Background

The fire door has the functions of a common door and also can prevent fire from spreading and smoke from spreading, is usually arranged at the positions of an evacuation stairway, a channel, a fireproof partition and the like, and is generally classified into a wood fireproof door, a steel fireproof door and the like according to materials.

However, when the existing fireproof door is closed, gaps are reserved between the periphery of the fireproof door and the door frame, when a fire disaster occurs in a room, smoke and toxic gas generated by combustion can overflow to a corridor and a stairwell through the gaps between the fireproof door and the door frame, so that people in the corridor are influenced, and certain limitations exist.

Therefore, there is a need to provide a new smoke protection structure for a steel fire door to solve the above technical problems.

Disclosure of utility model

The utility model solves the technical problem of providing a smoke-proof structure of the steel fireproof door, which is convenient to use, can block the gap between the fireproof door and the door frame and can prevent smoke and toxic gas from overflowing to the outside.

In order to solve the technical problems, the smoke prevention structure of the steel fireproof door provided by the utility model comprises: the fireproof door comprises a fireproof door body hinged in a door frame, a rotating rod is rotatably installed on the fireproof door body, the rotating rod penetrates through the fireproof door body, a rotating adjusting plate is fixedly sleeved on the rotating rod, four arc-shaped openings are formed in the outer wall of the rotating adjusting plate, two transverse adjusting plates and two longitudinal adjusting plates are arranged on the fireproof door body, transverse pressing plates are fixedly installed on outer walls of one sides, away from each other, of the transverse adjusting plates respectively, longitudinal pressing plates are fixedly installed on outer walls of one sides, away from each other, of the longitudinal adjusting plates respectively, two transverse pressing plates and two longitudinal pressing plates form a frame plate, and a telescopic rubber sealing frame plate is sleeved on the frame plate.

Preferably, four U-shaped plates are fixedly installed on the outer wall of one side of the fireproof door body, two transverse pressing plates and two longitudinal pressing plates penetrate through the corresponding U-shaped plates respectively and are movably connected with the corresponding U-shaped plates, four limiting pressing rods are slidably installed on the U-shaped plates respectively and penetrate through the corresponding U-shaped plates respectively, one ends of the limiting pressing rods, far away from the fireproof door body, of the limiting pressing rods are fixedly installed with moving plates respectively, powerful springs are movably sleeved on the limiting pressing rods respectively, one ends of the powerful springs are fixedly connected with the corresponding moving plates respectively, and the other ends of the powerful springs are fixedly connected with the corresponding moving plates respectively.

Preferably, the fireproof door body is far away from two limiting grooves are formed in the outer wall of one side of the rotation adjusting plate, one end of the rotation adjusting plate, which is far away from the rotating rod, is fixedly provided with a transverse plate, two limiting rods are slidably arranged on the transverse plate, one ends of the two limiting rods extend into the corresponding limiting grooves respectively, and one end, which is located outside the limiting grooves, of the two limiting rods is fixedly provided with the rotating plate.

Preferably, two through holes are formed in the transverse plate, linear bearings are fixedly installed in the two through holes respectively, and the two limiting rods penetrate through the linear bearings respectively and are connected with the inner walls of the two linear bearings in a sliding mode.

Preferably, a compression spring is fixedly installed on the outer wall of one side of the transverse plate, and the other end of the compression spring is fixedly connected with the rotating plate.

Preferably, the strong spring and the compression spring are both tin plated springs.

Compared with the related art, the smoke prevention structure of the steel fireproof door has the following beneficial effects:

The utility model provides a smoke-proof structure of a steel fireproof door, which is characterized in that a telescopic rubber sealing frame plate is always tightly contacted with a fireproof door body through a powerful spring, when a fire disaster happens, a worker rapidly leaves a room where the fire disaster happens, firstly, a rotating plate is moved to drive a limiting rod to move out of a limiting groove, the rotating plate drives the telescopic rubber sealing frame plate to expand and become large integrally and finally contact with the door frame, the rotating plate is released, the limiting rod is pulled to enter the limiting groove again under the action of a compression spring to clamp the rotating rod, and further, the telescopic rubber sealing frame plate is kept at the current position to block a gap between the fireproof door body and the door frame, so that the smoke generated by the fire disaster and toxic gas are prevented from overflowing to the outside through the gap between the fireproof door body and the door frame, and the physical and mental health of the person are influenced.

Drawings

Fig. 1 is a rear view of a smoke protection structure of a steel fire door provided by the utility model;

FIG. 2 is an enlarged schematic view of portion A shown in FIG. 1;

Fig. 3 is a front view of a smoke preventing structure of the steel fireproof door provided by the utility model;

FIG. 4 is an enlarged schematic view of portion B shown in FIG. 1;

Fig. 5 is an assembly view of the telescoping rubber seal frame plate, longitudinal platen and transverse platen shown in fig. 1.

Reference numerals in the drawings: 1. a door frame; 2. a fire door body; 3. a rotating lever; 4. rotating the adjusting plate; 5. a longitudinal adjustment plate; 6. a longitudinal pressing plate; 7. a lateral adjustment plate; 8. a transverse pressing plate; 9. a U-shaped plate; 10. a limit compression bar; 11. a moving plate; 12. a strong spring; 13. a flexible rubber sealing frame plate; 14. a limit groove; 15. a cross plate; 16. a rotating plate; 17. a limit rod; 18. compressing the spring.

Detailed Description

The utility model will be further described with reference to the drawings and embodiments.

Referring to fig. 1-5 in combination, fig. 1 is a rear view of a smoke preventing structure of a steel fireproof door according to the present utility model; FIG. 2 is an enlarged schematic view of portion A shown in FIG. 1; fig. 3 is a front view of a smoke preventing structure of the steel fireproof door provided by the utility model; FIG. 4 is an enlarged schematic view of portion B shown in FIG. 1; fig. 5 is an assembly of the telescoping rubber seal frame plate, longitudinal platen and transverse platen shown in fig. 1. The smoke protection structure of steel fire door includes: the fireproof door body 2 which is hinged in the door frame 1 through a hinge, the fireproof door body 2 is rotatably provided with a rotating rod 3, the rotating rod 3 is rotatably arranged on the fireproof door body 2 through a bearing, the rotating rod 3 penetrates through the fireproof door body 2, a rotating adjusting plate 4 is fixedly sleeved on the rotating rod 3, four arc-shaped openings are formed in the outer wall of the rotating adjusting plate 4, as the outer surface of the rotating adjusting plate 4 is in an uneven shape, when the rotating adjusting plate 4 rotates, the two longitudinal adjusting plates 5 and the two transverse adjusting plates 7 are pushed to be far away from each other, the longitudinal adjusting plates 5 and the transverse adjusting plates 7 are far away from each other to drive the longitudinal pressing plates 6 and the transverse pressing plates 8 to move and extrude the telescopic rubber sealing frame plate 13, so that the whole expansion of the telescopic rubber sealing frame plate 13 is large and finally contacts the door frame 1, and then will prevent that flue gas and poisonous gas that the conflagration produced from spilling over to the external world through preventing that the clearance between fire door body 2 and the door frame 1 from preventing fire from, cause the influence to people's physical and mental health, be provided with two horizontal regulating plates 7 and two vertical regulating plates 5 on preventing fire door body 2, be provided with horizontal clamp plate 8 on the outer wall of one side that two horizontal regulating plates 7 kept away from each other respectively fixed mounting, be provided with vertical clamp plate 6 on the outer wall of one side that two vertical regulating plates 5 kept away from each other respectively fixed mounting, a frame plate is constituteed to two horizontal clamp plates 8 and two vertical clamp plates 6, the cover is equipped with flexible rubber seal frame plate 13 on the frame plate, flexible rubber seal frame plate 13 is high temperature resistant rubber preparation.

In order to ensure that the telescopic rubber sealing frame-shaped plate 13 is always and tightly contacted with the fireproof door body 2, four U-shaped plates 9 are fixedly arranged on the outer wall of one side of the fireproof door body 2, two transverse pressing plates 8 and two longitudinal pressing plates 6 respectively penetrate through the corresponding U-shaped plates 9 and are movably connected with the corresponding U-shaped plates 9, the four U-shaped plates 9 are fixedly arranged on the fireproof door body 2 through welding, the four U-shaped plates 9 are respectively and slidably provided with a limiting pressing rod 10, the four limiting pressing rods 10 respectively penetrate through the corresponding U-shaped plates 9, one ends of the four limiting pressing rods 10 far away from the fireproof door body 2 are respectively and fixedly provided with a movable plate 11, strong springs 12 are respectively and movably sleeved on the four limiting pressing rods 10, one ends of the four strong springs 12 are respectively and fixedly connected with the corresponding movable plates 11, the other ends of the four powerful springs 12 are fixedly connected with the corresponding moving plates 11 respectively, in an initial state, the powerful springs 12 are in a stretching state, the compression springs 18 are in a free state, one end of the limiting rod 17 is located in the limiting groove 14, the limiting pressing rod 10 is in contact with the transverse adjusting plate 7 and the longitudinal adjusting plate 5, the powerful springs 12 are in the stretching state, the moving plates 11 are further subjected to force towards the direction of the fireproof door body 2 all the time, the moving plates 11 always have a trend of moving towards the fireproof door body 2, the force transmission shows that the limiting pressing rod 10 always has a trend of moving towards the fireproof door body 2, and the limiting pressing rod 10 always presses the longitudinal adjusting plate 5 and the transverse adjusting plate 7, so that the telescopic rubber sealing frame plate 13 is in contact with the fireproof door body 2 all the time.

In order to limit the rotating rod 3, and then make the rotation regulating plate 4, the longitudinal regulating plate 5, the longitudinal pressing plate 6, the transverse regulating plate 7, transverse pressing plate 8 and flexible rubber seal frame 13 all keep in current position, the clearance between fire door body 2 and door frame 1 is plugged up, two spacing grooves 14 have been seted up on the outer wall of one side that fire door body 2 kept away from rotation regulating plate 4, the one end fixed mounting who rotates regulating plate 4 that the rotating rod 3 kept away from has diaphragm 15, slidable mounting has two gag lever posts 17 on diaphragm 15, in order to reduce frictional force between gag lever post 17 and diaphragm 15, and then reduce the wearing degree of gag lever post 17, improve the life of gag lever post 17, two through-holes have been seted up on diaphragm 15, respectively fixed mounting has linear bearing in two through-holes, two gag lever posts 17 run through linear bearing respectively and with two linear bearing's inner wall sliding connection, and the one end of two gag lever posts 17 extends respectively to corresponding spacing groove 14 in, the one end that two gag lever posts 17 are located outside the spacing groove 14 fixedly installs the rotating plate 16.

In order to make the one end of the limiting rod 17 be located in the limiting groove 14 all the time to clamp the rotating rod 3 under the action of other external forces, the outer wall of one side of the transverse plate 15 is fixedly provided with the compression spring 18, and the other end of the compression spring 18 is fixedly connected with the rotating plate 16, so that the service lives of the strong spring 12 and the compression spring 18 are prolonged, and the strong spring 12 and the compression spring 18 are tin-plated springs.

The working principle of the smoke prevention structure of the steel fireproof door provided by the utility model is as follows: in the initial state, the strong spring 12 is in a stretching state, the compression spring 18 is in a free state, one end of the limiting rod 17 is positioned in the limiting groove 14, the limiting pressing rod 10 is in contact with the transverse adjusting plate 7 and the longitudinal adjusting plate 5, as the strong spring 12 is in a stretching state, the moving plate 11 always receives a force towards the direction of the fireproof door body 2, the moving plate 11 always has a trend of moving towards the fireproof door body 2, the limiting pressing rod 10 always has a trend of moving towards the fireproof door body 2 as the force is transmitted, the limiting pressing rod 10 always presses the longitudinal adjusting plate 5 and the transverse adjusting plate 7, the telescopic rubber sealing frame plate 13 always contacts with the fireproof door body 2 tightly, when a fire disaster happens, a worker rapidly leaves a room where the fire disaster happens, firstly, the rotating plate 16 drives the limiting rod 17 to move out of the limiting groove 14, then the rotating plate 16 is rotated, the rotating plate 16 rotates to drive the rotating rod 3 to rotate, the rotating rod 3 rotates to drive the rotating adjusting plate 4 to rotate, as the outer surface of the rotating adjusting plate 4 is in an uneven shape, when the rotating adjusting plate 4 rotates, the two longitudinal adjusting plates 5 and the two transverse adjusting plates 7 are pushed to be far away from each other, the longitudinal adjusting plates 5 and the transverse adjusting plates 7 are far away from each other to drive the longitudinal pressing plates 6 and the transverse pressing plates 8 to move and squeeze the telescopic rubber sealing frame plate 13, the whole expansion of the telescopic rubber sealing frame plate 13 is enlarged and finally contacts with the door frame 1, the rotating plate 16 is released, the rotating plate 16 is pulled to be close to the fireproof door body 2 under the action of the compression spring 18, the rotating plate 16 moves to drive the limiting rod 17 to enter the limiting groove 14 again to clamp the rotating rod 3, the rotating rod 3 cannot rotate, and the rotating adjusting plate 4, the longitudinal adjusting plates 5 are further enabled to be expanded, the longitudinal pressing plate 6, the transverse adjusting plate 7, the transverse pressing plate 8 and the telescopic rubber sealing frame-shaped plate 13 are all kept at the current position, a gap between the fireproof door body 2 and the door frame 1 is blocked, and smoke and toxic gas generated by fire are prevented from overflowing to the outside through the gap between the fireproof door body 2 and the door frame 1, so that the physical and mental health of people is influenced.

Compared with the related art, the smoke prevention structure of the steel fireproof door has the following beneficial effects:

The utility model provides a smoke-proof structure of a steel fireproof door, which is characterized in that a telescopic rubber sealing frame plate 13 is always and tightly contacted with a fireproof door body 2 through a powerful spring 12, when a fire disaster happens, a worker rapidly leaves a room where the fire disaster happens, firstly, a rotating plate 16 is moved to drive a limiting rod 17 to move out of a limiting groove 14, the rotating plate 16 drives the telescopic rubber sealing frame plate 13 to expand integrally and become large and finally contact with a door frame 1, the rotating plate 16 is released, the limiting rod 17 is pulled to enter the limiting groove 14 again under the action of a compression spring 18 to clamp the rotating rod 3, and further, the telescopic rubber sealing frame plate 13 is kept at the current position to block a gap between the fireproof door body 2 and the door frame 1, so that smoke generated by the fire disaster and toxic gas are prevented from overflowing to the outside through the gap between the fireproof door body 2 and the door frame 1, and the influence is caused on physical and mental health of the people.

The foregoing description is only illustrative of the present utility model and is not intended to limit the scope of the utility model, and all equivalent structures or equivalent processes or direct or indirect application in other related technical fields are included in the scope of the present utility model.

Claims (6)

1. A smoke-proof structure for a steel fire door, comprising a fire door body hingedly installed in a door frame, characterized in that: a rotating rod is rotatably installed on the fire door body, and the rotating rod passes through the fire door body, a rotating adjustment plate is fixedly sleeved on the rotating rod, and four arc openings are opened on the outer wall of the rotating adjustment plate, two transverse adjustment plates and two longitudinal adjustment plates are arranged on the fire door body, transverse pressure plates are fixedly installed on the outer walls on the sides away from each other of the two transverse adjustment plates, and longitudinal pressure plates are fixedly installed on the outer walls on the sides away from each other of the two longitudinal adjustment plates, the two transverse pressure plates and the two longitudinal pressure plates form a frame plate, and a telescopic rubber sealing frame plate is sleeved on the frame plate. 2. The smoke-proof structure of the steel fire door according to claim 1 is characterized in that four U-shaped plates are fixedly installed on the outer wall of one side of the fire door body, and the two transverse pressure plates and the two longitudinal pressure plates respectively penetrate the corresponding U-shaped plates and are movably connected to the corresponding U-shaped plates, and limiting pressure rods are respectively slidably installed on the four U-shaped plates, and the four limiting pressure rods respectively penetrate the corresponding U-shaped plates, and movable plates are respectively fixedly installed on the ends of the four limiting pressure rods away from the fire door body, and strong springs are respectively movably sleeved on the four limiting pressure rods, and one end of the four strong springs is respectively fixedly connected to the corresponding movable plates, and the other ends of the four strong springs are respectively fixedly connected to the corresponding movable plates. 3. The smoke-proof structure of the steel fire door according to claim 2 is characterized in that two limit grooves are provided on the outer wall of the fire door body on one side away from the rotating adjustment plate, a horizontal plate is fixedly installed on one end of the rotating rod away from the rotating adjustment plate, two limit rods are slidably installed on the horizontal plate, and one end of the two limit rods respectively extends into the corresponding limit grooves, and a rotating plate is fixedly installed on one end of the two limit rods located outside the limit grooves. 4. The smoke-proof structure of the steel fire door according to claim 3 is characterized in that two through holes are provided on the horizontal plate, linear bearings are fixedly installed in the two through holes respectively, and the two limit rods respectively penetrate the linear bearings and are slidably connected to the inner walls of the two linear bearings. 5. The smoke-proof structure of the steel fire door according to claim 4 is characterized in that a compression spring is fixedly installed on the outer wall of one side of the horizontal plate, and the other end of the compression spring is fixedly connected to the rotating plate. 6. The smoke-proof structure of the steel fire door according to claim 5, characterized in that the strong spring and the compression spring are both tin-plated springs.