Fireproof door with sealing mechanism
By introducing expansion materials, water tanks, water pumps and fire detection systems into the fire doors, the problems of poor cooling effect and inability to reuse materials are solved, and efficient fire cooling and material reuse is achieved.
Patent Information
- Application Number
- CN202422426957.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-09
- Publication Date
- 2025-08-01
- Estimated Expiration
- 2034-10-09
AI Technical Summary
The cooling liquid of existing fire doors has poor circulation and cooling effect, and cannot be reused when thermally expanded materials are encountered.
A fire-proof door is designed, including door frame, door panel, expansion material, water tank, water pump, waterproof bar, fire detection device and control assembly. The abnormal information is detected through the fire detection device, and the water pump is activated to supply water to the expansion material, so that it expands and fills the gap between the door panel and the door frame, and the drainage moisture is reused after the fire.
In the event of a fire, the door panels are effectively cooled to prevent scalding, and at the same time, the reuse of expanded materials is realized to avoid accidental triggering of the water pump.
Smart Images

Figure CN223177429U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the technical field of fire doors, and in particular to a fire door with a sealing mechanism. Background Art
[0002] A fire door, as a door that can meet the requirements of fire resistance stability, integrity, and heat insulation within a certain period of time, is a fire separation with a certain fire resistance established in fire compartments, evacuation stairwells, vertical shafts, etc. In addition to the function of an ordinary door, a fire door also has the function of preventing the spread of fire and smoke, and can prevent the spread of fire within a certain period of time to ensure the evacuation of personnel.
[0003] For example, a sealed fire door proposed in the publication number CN215292208U cools the entire fire door through a cooling liquid, and at the same time uses a heat-expandable material to complete the sealing of the fire door. Although this structure enables the fire door to effectively face a fire, the cooling effect of the inner-circulating cooling liquid on the surface of the fire door is not very effective, and the heat-expandable material generally cannot be reused.
[0004] The above content is only used to assist in understanding the technical solution of this application, and does not represent an admission that the above content is the closest prior art to this application. Summary of the Invention
[0005] Based on this, this application provides a fire door with a sealing mechanism to solve one of the above technical problems.
[0006] The technical solution adopted by this application to solve its technical problems includes: a door frame; a door panel rotatably arranged on the door frame; an expansion material arranged on the four sides of the door panel, which expands when encountering water; a water tank installed inside the door panel for storing liquid; a water pump installed inside the door panel and connected to the water tank through a water pipe for pumping the liquid inside the water tank to the expansion material; a waterproof strip arranged on one side of the expansion material, which will automatically fall off after the expansion material expands, for preventing the expansion material from expanding under non-fire conditions; a fire detection device arranged on both sides of the door panel for detecting abnormal information inside the house; and a control assembly arranged on one side of the door panel for receiving and analyzing the abnormal information of the fire detection device and sending a signal to the water pump.
[0007] In some embodiments, accommodation cavities are formed around the door panel for accommodating the expansion material.
[0008] In some embodiments, a number of liquid discharge holes are formed on both sides of the accommodation cavity. <l
[0009] In some embodiments, a number of liquid outlet heads are arranged at the bottom of the accommodation cavity.
[0010] In some embodiments, handles are installed on both sides of the door panel, a mechanical lock is installed on one side of the door panel, and the handle is connected to the mechanical lock.
[0011] In some embodiments, a water injection port is provided on one side of the door panel.
[0012] In some embodiments, the fire detection device includes a smoke sensor and a temperature sensor.
[0013] The beneficial effects of the present application are as follows: in case of a fire, the fire detection device sends a signal to the control assembly, the control assembly analyzes the abnormal information and transmits a signal to start the water pump. The water in the water tank is continuously supplied to the expansion material, and the expansion material pushes open the waterproof strip and fills the gap between the door panel and the door frame. At this time, the water pump is still operating, and the excess water will flow through the door panel through the drain hole when the expansion material can no longer expand, achieving the effect of cooling both inside and outside the door panel. At the same time, after the fire, the water in the expansion material can be drained and then the expansion material can be put back into the accommodation cavity and the waterproof strip can be covered again, achieving the effect of reuse and also preventing the accidental triggering of the water pump due to some unexpected situations. Description of the Drawings
[0014] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present application. For those skilled in the art, without creative efforts, other drawings can be obtained based on these drawings.
[0015] Figure 1 It is a three-dimensional structural schematic diagram of the present application.
[0016] Figure 2 It is a three-dimensional structural schematic diagram of the door panel of the present application.
[0017] Figure 3 It is a cross-sectional structural schematic diagram of the present application.
[0018] Explanation of the reference numerals in the drawings: 1, door frame; 2, door panel; 21, accommodation cavity; 211, drain hole; 212, liquid outlet head; 22, handle; 23, mechanical lock; 24, water injection port; 3, expansion material; 4, water tank; 5, water pump; 6, waterproof strip; 7, fire detection device; 71, smoke sensor; 72, temperature sensor; 8, control assembly. Detailed Embodiments
[0019] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the fact that those of ordinary skill in the art can implement them. When the combination of technical solutions conflicts with each other or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope of the present application.
[0020] In the embodiments of the present application, please refer to Figures 1-3 As shown, the present application provides a fire door with a sealing mechanism, which mainly includes: a door frame 1; a door panel 2 rotatably arranged on the door frame 1; an expansion material 3 arranged on the four sides of the door panel 2, which will expand when encountering water; a water tank 4 installed inside the door panel 2 for storing liquid; a water pump 5 installed inside the door panel 2 and connected to the water tank 4 through a water pipe for pumping the liquid inside the water tank 4 to the expansion material 3; a waterproof strip 6 arranged on one side of the expansion material 3, which will automatically fall off after the expansion material 3 expands, for preventing the expansion material 3 from expanding under non-fire conditions; a fire detection device 7 arranged on both sides of the door panel 2 for detecting abnormal information inside the house; and a control assembly 8 arranged on one side of the door panel 2 for receiving and analyzing the abnormal information of the fire detection device 7 and sending a signal to the water pump 5.
[0021] Specifically, when a fire occurs, the fire detection device 7 will send a signal to the control assembly 8. The control assembly 8 receives and processes the abnormal information and sends a signal to the water pump 5. The water pump 5 pumps out the water in the water tank 4 and wets the expansion material 3. The expansion material 3 expands and pushes open the waterproof strip 6, reducing the gap between the door panel 2 and the door frame 1.
[0022] Next, some preferred / improved embodiments based on the above embodiments will be further elaborated. Any one or a combination of multiple of the following embodiments can be selected.
[0023] Refer to Figure 2 As shown, in order to better place the expansion material 3, accommodation cavities 21 are provided around the door panel 2 for accommodating the expansion material 3.
[0024] Refer to Figure 1As shown, a number of liquid discharge holes 211 are provided on both sides of the accommodation cavity 21. With this arrangement, the water that cannot be absorbed by the expansion material 3 will flow out along the liquid discharge holes 211, cooling the outer surface of the door, effectively preventing the situation where the high-temperature door panel 2 scalds the escapees in case of a fire.
[0025] Preferably, in order to enable the water in the water tank 4 to cool the door panel 2 more evenly, a number of liquid outlet heads 212 are provided at the bottom of the accommodation cavity 21.
[0026] Preferably, for the basic use of the fire door, handles 22 are installed on both sides of the door panel 2, and a mechanical lock 23 is installed on one side of the door panel 2. The handle 22 is connected to the mechanical lock 23.
[0027] Preferably, a water injection port 24 is provided on one side of the door panel 2. With this arrangement, it is convenient to supplement the water inside the water tank 4, which plays a certain role in the maintenance of the door panel 2.
[0028] Specifically, the fire detection device 7 includes a smoke sensor 71 and a temperature sensor 72. With this arrangement, the fire detection device 7 can provide more accurate abnormal information, effectively preventing the water pump 5 from starting due to misjudgment of the control assembly 8.
[0029] So far, various embodiments of the present application have been described in detail. To avoid obscuring the concept of the present application, some details well known in the art have not been described. Those skilled in the art can fully understand how to implement the technical solutions disclosed herein based on the above description.
[0030] Finally, it should be noted that the above are only the preferred embodiments of the present application. The foregoing embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the various embodiments of the present application.
Claims
1. A fire door with a sealing mechanism, characterized in that Including: Door frame; Door panel, rotatably arranged on the door frame; Expansion material, arranged on the four sides of the door panel, which will expand when encountering water; Water tank, installed inside the door panel for storing liquid; Water pump, installed inside the door panel, connected to the water tank through a water pipe, for pumping the liquid inside the water tank to the expansion material; Waterproof strip, arranged on one side of the expansion material, which will automatically fall off after the expansion material expands, for preventing the expansion material from expanding under non-fire conditions; Fire detection device, arranged on both sides of the door panel, for detecting abnormal information inside the house; Control assembly, arranged on one side of the door panel, for receiving and analyzing the abnormal information of the fire detection device and sending a signal to the water pump.
2. The fire door with a sealing mechanism according to claim 1, wherein, A receiving cavity is provided around the door panel for receiving the expansion material.
3. The fire door with a sealing mechanism according to claim 2, characterized in that, A number of liquid discharge holes are provided on both sides of the receiving cavity.
4. The fire door with a sealing mechanism according to claim 2, characterized in that, A number of liquid outlet heads are arranged at the bottom of the receiving cavity.
5. The fire door with a sealing mechanism according to claim 1, characterized in that, Handles are installed on both sides of the door panel, and a mechanical lock is installed on one side of the door panel, and the handle is connected to the mechanical lock.
6. The fire door with a sealing mechanism according to claim 1, characterized in that, A water injection port is arranged on one side of the door panel.
7. The fire door with a sealing mechanism according to claim 1, characterized in that, The fire detection device includes a smoke sensor and a temperature sensor.