CN219034539U

CN219034539U - Steel heat-insulating fireproof door with good sealing performance

Info

Publication number: CN219034539U
Application number: CN202221461172.5U
Authority: CN
Inventors: 吴京涛
Original assignee: Hebei Haoyuan Fire Fighting Equipment Co ltd
Current assignee: Hebei Haoyuan Fire Fighting Equipment Co ltd
Priority date: 2022-06-10
Filing date: 2022-06-10
Publication date: 2023-05-16
Anticipated expiration: 2032-06-10

Abstract

The utility model belongs to the technical field of heat-insulating fireproof doors, in particular to a steel heat-insulating fireproof door with good sealing performance, which comprises a door frame and a door plate, wherein a fire extinguishing sand storage cavity and a control cavity are respectively formed in the surface of the door plate, and a communication hole for conducting the fire extinguishing sand storage cavity and the control cavity is also formed in the door plate; a steel plate is arranged at the port of the fire extinguishing sand storage cavity; the device also comprises a sealing strip, wherein the bottom surface of the sealing strip is fixed with a connecting rod, and an elastic component is connected between the bottom end of the connecting rod and the inner wall of the control cavity; according to the fireproof door disclosed by the utility model, the elastic component and the sealing strip are utilized, when the PVC heat-shrinkable plastic plate is heated, the elastic component is contracted and deformed to drop from the door plate, the elastic component releases the elasticity and pushes the connecting rod to move upwards, the sealing strip moves upwards to open the communication hole, fire extinguishing sand falls into the communication hole from the fire extinguishing sand storage cavity and is discharged from the control cavity, flame near the door plate is extinguished, the problem that the temperature of the door plate is increased and is unfavorable for opening is avoided, the escape time of a user is prolonged, and the safety of the user is ensured.

Description

Steel heat-insulating fireproof door with good sealing performance

Technical Field

The utility model belongs to the technical field of heat-insulating fireproof doors, and particularly relates to a steel heat-insulating fireproof door with good sealing performance.

Background

The steel fireproof door is a door which is made of steel materials, is made of door frames, door leaf frameworks and door leaf panels, is filled with fireproof and heat-insulating materials which are nontoxic and harmless to human bodies if the door leaves are filled with the materials, and is matched with fireproof hardware fittings to form the door with specified fireproof performance.

Due to the steel fireproof door material, when a fire disaster occurs indoors, flames close to the door plate can enable the inner layer of the door plate to be heated rapidly, and the fireproof door is not beneficial to timely opening for escape.

Disclosure of Invention

In order to solve the problems in the prior art, the utility model provides the steel heat-insulating fireproof door with good sealing property, and the steel heat-insulating fireproof door has the characteristics of convenience in use and safety in use.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the steel heat-insulating fireproof door with good sealing performance comprises a door frame and a door plate, wherein the door plate is hinged in the door frame, a toughened glass observation window is embedded and installed on the door plate, a fire extinguishing sand storage cavity and a control cavity are respectively formed in the surface of the door plate, the fire extinguishing sand storage cavity is positioned right above the control cavity, the bottom surface of the control cavity is an inclined surface, and a communication hole which enables the fire extinguishing sand storage cavity to be communicated with the control cavity is formed in the door plate; a steel plate is arranged at the port of the fire extinguishing sand storage cavity; also comprises a sealing strip which is positioned in the fire extinguishing sand storage cavity and blocks the communication hole, two symmetrically distributed connecting rods are fixed on the bottom surface of the sealing strip, the connecting rod penetrates through the communication hole, an elastic component is connected between the bottom end of the connecting rod and the inner wall of the control cavity, and the connecting rod is pushed to move upwards when the elastic component releases the elastic force; a PVC heat-shrinkable plastic plate for limiting the elastic force released by the elastic component is arranged at the port of the control cavity; the PVC heat-shrinkable plastic plate is a hollow plate, a water jacket is arranged in the PVC heat-shrinkable plastic plate, notches are formed in four corners of the PVC heat-shrinkable plastic plate for bolts to pass through, and the PVC heat-shrinkable plastic plate is arranged on the surface of the door plate.

As a preferable technical scheme of the utility model, fireproof flame-retardant sealing expansion adhesive tapes are adhered and fixed on the inner wall of the door frame and the surface of the door plate.

As a preferable aspect of the present utility model, the sealing strip has a semi-cylindrical structure, and a planar portion of the sealing strip is opposed to the communication hole.

As a preferable technical scheme of the utility model, the plane part of the sealing strip is fixedly adhered with a silica gel sealing strip.

As a preferable technical scheme of the utility model, the elastic component comprises a turnover connecting arm, a connecting plate and a reset spring, wherein the connecting plate is positioned in the control cavity, the top end of the turnover connecting arm is hinged with the connecting rod, the bottom end of the turnover connecting arm is hinged with the connecting plate, and the reset spring is distributed between the back surface of the connecting plate and the inner wall of the control cavity; the front of the connecting plate is fixedly provided with a connecting column, and the end part of the connecting column is fixedly provided with a push plate.

As a preferable technical scheme of the utility model, a limiting plate is also fixed on the inner wall of the control cavity, and a through hole for the connecting column to penetrate is formed in the limiting plate.

Compared with the prior art, the utility model has the beneficial effects that: according to the fireproof door disclosed by the utility model, the elastic component and the sealing strip are utilized, when the PVC heat-shrinkable plastic plate is heated, the elastic component is contracted and deformed to drop from the door plate, the elastic component releases the elasticity and pushes the connecting rod to move upwards, the sealing strip moves upwards to open the communication hole, fire extinguishing sand falls into the communication hole from the fire extinguishing sand storage cavity and is discharged from the control cavity, flame near the door plate is extinguished, the problem that the temperature of the door plate is increased and is unfavorable for opening is avoided, the escape time of a user is prolonged, and the safety of the user is ensured.

Drawings

The accompanying drawings are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate the utility model and together with the embodiments of the utility model, serve to explain the utility model. In the drawings:

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic diagram of an axial structure of the present utility model;

FIG. 3 is a schematic view of the axial side structure of the sealing strip in the present utility model;

in the figure: 1. a door frame; 2. a door panel; 3. toughened glass observation window; 4. fireproof flame-retardant sealing expansion adhesive tape; 5. a steel plate; 6. PVC thermal shrinkage plastic plate; 7. a fire extinguishing sand storage chamber; 8. a control chamber; 9. a communication hole; 10. a sealing strip; 11. a connecting rod; 12. turning over the connecting arm; 13. a connecting plate; 14. a return spring; 15. a connecting column; 16. a push plate; 17. a limiting plate; 18. a through hole; 19. a silica gel sealing strip; 20. and (5) a notch.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Example 1

Referring to fig. 1-3, the present utility model provides the following technical solutions: the steel heat-insulating fireproof door with good sealing performance comprises a door frame 1 and a door plate 2, wherein the door plate 2 is hinged in the door frame 1, a toughened glass observation window 3 is embedded and installed on the door plate 2, a fire extinguishing sand storage cavity 7 and a control cavity 8 are respectively formed in the surface of the door plate 2, the fire extinguishing sand storage cavity 7 is positioned right above the control cavity 8, the bottom surface of the control cavity 8 is an inclined surface, and a communication hole 9 for enabling the fire extinguishing sand storage cavity 7 to be communicated with the control cavity 8 is also formed in the door plate 2; a steel plate 5 is arranged at the port of the fire extinguishing sand storage cavity 7 by bolts; the fire extinguishing sand storage cavity 7 is internally provided with a fire extinguishing sand storage cavity 7, a communication hole 9 is blocked by the sealing strip 10, two symmetrically distributed connecting rods 11 are fixed on the bottom surface of the sealing strip 10, the connecting rods 11 penetrate through the communication hole 9, an elastic component is connected between the bottom end of the connecting rods 11 and the inner wall of the control cavity 8, and the connecting rods 11 are pushed to move upwards when the elastic component releases the elasticity; a PVC heat-shrinkable plastic plate 6 for limiting the elastic force released by the elastic component is arranged at the port of the control cavity 8; the PVC heat-shrinkable plastic plate 6 is a hollow plate, a water jacket is arranged inside the hollow plate, notches 20 are formed in four corners of the PVC heat-shrinkable plastic plate 6 for bolts to penetrate through and the PVC heat-shrinkable plastic plate 6 is arranged on the surface of the door plate 2, when the hollow plate is used, sufficient fire-extinguishing sand is stored in the fire-extinguishing sand storage cavity 7 in advance, after the PVC heat-shrinkable plastic plate 6 is fixed at the port of the control cavity 8, elastic components are limited to release elastic force, at the moment, the sealing strip 10 is in a state of blocking the communication hole 9, when a fire disaster happens indoors, fire at the position close to the door plate 2 can cause the PVC heat-shrinkable plastic plate 6 to shrink by heating, the PVC heat-shrinkable plastic plate 6 is separated from the door plate 2, the elastic components are not limited to release elastic force, the connecting rod 11 is pushed to move upwards, the connecting rod 11 pushes the sealing strip 10 to move upwards so as to open the communication hole 9, fire-extinguishing sand falls into the communication hole 9 from the fire-extinguishing sand storage cavity 7, and is discharged from the control cavity 8, flame nearby the door plate 2 is extinguished, the problem that the temperature of the door plate 2 is unfavorable for opening is avoided, the escape time of a user is prolonged, and the safety of the user is ensured.

It should be noted that PVC is a heat-shrinkable material, the minimum shrinkage temperature is 35 ℃, when the indoor conflagration that encounters, when the temperature is raised to more than 35 ℃, PVC heat shrink plastic board 6 is heated and shrunk, there is cooling water in advance in the water jacket of PVC heat shrink plastic board 6, after PVC heat shrink plastic board 6 shrink, because the water pressure reason, PVC heat shrink plastic board 6 can produce the crack, lead to cooling water to flow from PVC heat shrink plastic board 6, cool down door plant 2, in addition, PVC heat shrink plastic board 6 shrink back, the position of breach 20 can keep away from the bolt, PVC heat shrink plastic board 6 is not fixed, the unrestricted release elasticity of elastic component at this moment, promote connecting rod 11 to reciprocate, connecting rod 11 promotes sealing strip 10 to reciprocate, in order to open communication hole 9, put out fire sand falls to in the communication hole 9 from putting out fire sand storage chamber 7, and discharge from control chamber 8, put out the flame in the vicinity of door plant 2, avoid flame to continuously toast door plant 2, because the cooling water in PVC heat shrink plastic board 6 has carried out the cooling to a certain extent to door plant 2 at this moment, promptly the door plant 2 can be very convenient to open the door plant 2 and realize escape.

Specifically, according to the embodiment shown in fig. 1, fireproof flame-retardant sealing expansion adhesive tapes 4 are adhered and fixed on the surfaces of the inner wall of the door frame 1 and the door plate 2, so that the sealing performance of the fireproof door is improved.

Specifically, according to fig. 1, in this embodiment, the sealing strip 10 has a semi-cylindrical structure, and the plane portion of the sealing strip 10 is opposite to the communication hole 9, so as to ensure that the fire extinguishing sand reliably falls from the fire extinguishing sand storage cavity 7, and simultaneously reduce the resistance when the sealing strip 10 moves upwards.

Specifically, according to the embodiment shown in fig. 1, 2 and 3, the silica gel sealing strip 19 is adhered and fixed to the planar portion of the sealing strip 10, so that the sealing capability of the sealing strip 10 to the communication hole 9 is improved.

Specifically, according to fig. 1 and 2, in this embodiment, the elastic component includes a turnover connecting arm 12, a connecting plate 13 and a return spring 14, the connecting plate 13 is located in the control cavity 8, the top end of the turnover connecting arm 12 is hinged with the connecting rod 11, the bottom end of the turnover connecting arm is hinged with the connecting plate 13, and the return spring 14 is distributed between the back surface of the connecting plate 13 and the inner wall of the control cavity 8; a connecting column 15 is fixed on the front surface of the connecting plate 13, a push plate 16 is fixed at the end part of the connecting column 15, after the PVC heat-shrinkable plastic plate 6 is separated from the door plate 2, the connecting plate 13 moves forward under the elastic force of a return spring 14 and drives a turnover connecting arm 12 to turn over and move, and the turnover connecting arm 12 pushes a sealing strip 10 to move upwards to open a communication hole 9; in a sealed state, the PVC heat-shrinkable plastic plate 6 pushes the connecting column 15 by utilizing the push plate 16, pushes the connecting plate 13 to move backwards by utilizing the connecting column 15, and pulls the connecting rod 11 and the sealing strip 10 to move downwards by utilizing the overturning connecting arm 12 to block the communication hole 9.

Example 2

Specifically, according to fig. 1 and 2, in this embodiment, a limiting plate 17 is further fixed on the inner wall of the control chamber 8, and a through hole 18 for the connection post 15 to penetrate is formed in the limiting plate 17, so as to limit the movement range of the connection plate 13.

The working principle and the using flow of the utility model are as follows: when the steel heat-insulating fireproof door is used, enough fire-extinguishing sand is stored in the fire-extinguishing sand storage cavity 7 in advance, when the PVC heat-shrinkable plastic plate 6 is fixed at the port of the control cavity 8, the elastic component is limited to release elasticity, the PVC heat-shrinkable plastic plate 6 pushes the connecting column 15 by the push plate 16, pushes the connecting plate 13 to move backwards by the connecting column 15, and pulls the connecting rod 11 and the sealing strip 10 to move downwards by the overturning connecting arm 12 to block the communication hole 9;

when the indoor conflagration that encounters a fire, the fire that is close to door plant 2 department can make PVC pyrocondensation plastic sheet 6 shrink by heating, PVC pyrocondensation plastic sheet 6 breaks away from door plant 2, elastic component unrestricted release elasticity, under reset spring 14's elasticity effect, connecting plate 13 forward, and drive upset linking arm 12 upset and removal, promote sealing strip 10 to shift up in order to open intercommunicating pore 9 through upset linking arm 12, put out a fire in sand storage chamber 7 falls to intercommunicating pore 9, and discharge from control chamber 8, put out the flame near door plant 2, avoid the door plant 2 intensification to be unfavorable for opening the problem, the escape time of user has been prolonged, user's safety is guaranteed.

Finally, it should be noted that: the foregoing description is only a preferred embodiment of the present utility model, and the present utility model is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present utility model has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. The utility model provides a fire door is prevented in steel heat insulation that leakproofness is good, includes door frame (1) and door plant (2), door plant (2) articulate in door frame (1) door plant (2) are last to embed installs toughened glass observation window (3), its characterized in that: the fire extinguishing sand storage device is characterized in that a fire extinguishing sand storage cavity (7) and a control cavity (8) are respectively formed in the surface of the door plate (2), the fire extinguishing sand storage cavity (7) is located right above the control cavity (8), the bottom surface of the control cavity (8) is an inclined surface, and a communication hole (9) for enabling the fire extinguishing sand storage cavity (7) to be communicated with the control cavity (8) is formed in the door plate (2); a steel plate (5) is arranged at the port of the fire extinguishing sand storage cavity (7); the fire extinguishing sand storage cavity (7) is internally provided with a sealing strip (10), the sealing strip (10) is positioned in the fire extinguishing sand storage cavity (7) and blocks the communication hole (9), two symmetrically distributed connecting rods (11) are fixed on the bottom surface of the sealing strip (10), the connecting rods (11) penetrate through the communication hole (9), an elastic component is connected between the bottom end of the connecting rods (11) and the inner wall of the control cavity (8), and the connecting rods (11) are pushed to move upwards when the elastic component releases elasticity; a PVC heat-shrinkable plastic plate (6) for limiting the elastic component to release elasticity is arranged at the port of the control cavity (8); the PVC heat-shrinkable plastic plate (6) is a hollow plate, a water jacket is arranged in the PVC heat-shrinkable plastic plate, notches (20) are formed in four corners of the PVC heat-shrinkable plastic plate (6) for bolts to pass through, and the PVC heat-shrinkable plastic plate (6) is arranged on the surface of the door plate (2).

2. The steel heat-insulating fireproof door with good sealing performance according to claim 1, wherein: the inner wall of the door frame (1) and the surface of the door plate (2) are adhered and fixed with fireproof flame-retardant sealing expansion adhesive tapes (4).

3. The steel heat-insulating fireproof door with good sealing performance according to claim 1, wherein: the sealing strip (10) is of a semi-cylindrical structure, and the plane part of the sealing strip (10) is opposite to the communication hole (9).

4. A steel heat insulating fire door with good sealing performance according to claim 3, wherein: and a silica gel sealing strip (19) is fixedly adhered to the plane part of the sealing strip (10).

5. The steel heat-insulating fireproof door with good sealing performance according to claim 1, wherein: the elastic assembly comprises a turnover connecting arm (12), a connecting plate (13) and a return spring (14), wherein the connecting plate (13) is positioned in the control cavity (8), the top end of the turnover connecting arm (12) is hinged with the connecting rod (11), the bottom end of the turnover connecting arm is hinged with the connecting plate (13), and the return spring (14) is distributed between the back surface of the connecting plate (13) and the inner wall of the control cavity (8); a connecting column (15) is fixed on the front surface of the connecting plate (13), and a push plate (16) is fixed at the end part of the connecting column (15).

6. The steel heat-insulating fireproof door with good sealing performance according to claim 5, wherein: the inner wall of the control cavity (8) is also fixed with a limiting plate (17), and a through hole (18) for the connecting column (15) to penetrate is formed in the limiting plate (17).