Fireproof door alarm indicating device
By installing an alarm indication device with a temperature-discolored indicator disc on the fire door, the problem of existing fire doors lacking fire alarm function is solved, and the effect of promptly reminding personnel to choose safe channels during fire is achieved.
Patent Information
- Application Number
- CN202421751040.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-23
- Publication Date
- 2025-06-24
- Estimated Expiration
- 2034-07-23
AI Technical Summary
The existing fire doors lack fire detection and alarm functions, which makes it difficult for indoor personnel to identify the fire in a timely manner when a fire occurs, delaying escape and fire control.
A fire door alarm indication device is designed, including a plug-in hole inside the fire door, and a first and second color change indicator discs are provided on both sides. Through the cooperation of the thermal rod and the heat conducting cylinder, the temperature-sensitive color change paint is red during a fire, reminding personnel to avoid the fire source.
When a fire occurs, the device can promptly remind staff to choose a fire-free passage to escape, which improves the efficiency of fire control and evacuation, and is suitable for multiple door environments such as power station oil depots.
Smart Images
Figure CN223018528U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of fire door alarm, in particular to a fire door alarm indicating device. Background Art
[0002] Traditional fire doors are mainly used to isolate fire sources and smoke during a fire to prevent the spread of fire. Currently, fire doors on the market are composed of door frames, door leaves, filling materials, fire seals, fire locks and other fire prevention hardware, and can meet the requirements of fire resistance stability, integrity and heat insulation within a certain period of time. However, these fire doors usually do not have the functions of fire detection and alarm, and rely on external fire alarm systems to detect fires and issue alarms. In some cases, the external alarm system may not be able to detect the fire in time. When indoor personnel escape, they need to hold the door handle with their hands to open the door, thus scalding their palms and delaying fire control and evacuation work.
[0003] Due to the relatively single function of existing fire doors, only having the functions of fire prevention and smoke prevention and not having the fire alarm function, there are also the following deficiencies when used in specific environments. For example, when a fire comes, when the staff faces multiple fire doors (such as in an environment with multiple doors in a power station oil depot, etc.), at the moment of choosing an escape route, it is obviously inappropriate to feel around one by one or walk in to observe whether there is a fire on the other side. At this time, a fire door with a fire indication is needed. After seeing the prompt from a distance, the staff can timely choose an inner room passage without a fire to escape. Summary of the Invention
[0004] The purpose of the utility model is to overcome the above deficiencies and provide a fire door alarm indicating device, which can timely remind the staff when a fire comes, so that they can timely choose an inner room passage without a fire to escape.
[0005] To solve the above technical problems, the technical solution adopted by the utility model is: a fire door alarm indicating device, including an insertion hole opened inside the fire door, a first color-changing indicator disk is arranged on one side of the fire door, and a second color-changing indicator disk is arranged on the other side. The insertion hole is in sliding fit with the outer surface of a heat conduction cylinder, and the inner part of the heat conduction cylinder is in sliding fit with the outer surface of a heat conduction rod. One end of the heat conduction rod is connected to the inner side surface of the first color-changing indicator disk, and one end of the heat conduction cylinder is connected to the inner side surface of the second color-changing indicator disk.
[0006] Preferably, the outer side surfaces of both the first color-changing indicator disk and the second color-changing indicator disk are coated with thermosensitive color-changing paint.
[0007] Preferably, a tension rod is also arranged between the first color-changing indicator disk and the second color-changing indicator disk and is inserted into the insertion hole.
[0008] Preferably, screw holes are formed on the surface of the first color-changing indicator disk, a threaded sleeve is fixedly connected to the surface of the second color-changing indicator disk, and the tension bolt sequentially passes through the screw hole and the insertion hole and is in threaded cooperation with the threaded sleeve.
[0009] Preferably, a plug is further provided on the outer side of the tension bolt.
[0010] Preferably, a screw hole is formed at the central position of the surface of the first color-changing indicator disk, and a threaded sleeve is arranged at the central position of the surface of the second color-changing indicator disk.
[0011] Preferably, both the heat conducting rod and the heat conducting cylinder are made of copper heat conducting material.
[0012] Preferably, heat conducting silicone is coated on the surface of the heat conducting rod.
[0013] Preferably, the number of the heat conducting rods is multiple, and they are distributed in a circular array with the central position of the first color-changing indicator disk as the center.
[0014] Preferably, the number of the heat conducting cylinders is multiple, and they are distributed in a circular array with the central position of the second color-changing indicator disk as the center.
[0015] The beneficial effects of the present utility model are as follows: The present utility model can timely remind the staff when a fire breaks out, enabling them to timely select the inner room passage without fire for escape; in addition, the indicator disk is coated with a temperature-sensitive color-changing material, which is simple and reliable and does not consume energy during operation; it can be applied in multi-door environments such as power station oil depots, and can give an alarm prompt in time when a fire occurs, providing a prompt for personnel to escape. Description of the Drawings
[0016] Figure 1 It is a schematic structural diagram of a fire door alarm indicating device;
[0017] Figure 2 It is a schematic structural diagram of a fire door alarm indicating device installed on a fire door;
[0018] Figure 3 It is a schematic diagram of the fire door alarm indicating device displayed under normal temperature conditions;
[0019] Figure 4 It is a schematic diagram of the fire door alarm indicating device displayed in the case of a fire. Detailed Embodiment
[0020] The following further describes the present utility model in detail with reference to the drawings and specific embodiments.
[0021] Such as Figure 1-2As shown in the figure, a fire door alarm indicating device includes an insertion hole 5 opened inside a fire door 6. On one side of the fire door 6, there is a first color-changing indicator disk 3, and on the other side, there is a second color-changing indicator disk 7. The insertion hole 5 is in sliding fit with the outer surface of a heat conduction cylinder 8, and the inner part of the heat conduction cylinder 8 is in sliding fit with the outer surface of a heat conduction rod 4. One end of the heat conduction rod 4 is connected to the inner side surface of the first color-changing indicator disk 3, and one end of the heat conduction cylinder 8 is connected to the inner side surface of the second color-changing indicator disk 7.
[0022] Preferably, heat-sensitive color-changing coatings are applied on the outer side surfaces of both the first color-changing indicator disk 3 and the second color-changing indicator disk 7. In this embodiment, the heat-sensitive color-changing coating is the commonly used color-changing paint in the market. The color-changing paint changes color when the temperature changes. It is green at normal temperature and red in case of high temperature due to fire.
[0023] Preferably, a tension bolt 2 passing through the insertion hole 5 is further provided between the first color-changing indicator disk 3 and the second color-changing indicator disk 7. Through the tension bolt 2, the first color-changing indicator disk 3 and the second color-changing indicator disk 7 will not move away from each other, ensuring that the first color-changing indicator disk 3 and the second color-changing indicator disk 7 can be stably limited on the surface of the fire door 6.
[0024] Preferably, a screw hole 3.1 is opened on the surface of the first color-changing indicator disk 3, and a threaded sleeve 7.1 is fixedly connected to the surface of the second color-changing indicator disk 7. The tension bolt 2 passes through the screw hole 3.1 and the insertion hole 5 in sequence and is in threaded fit with the threaded sleeve 7.1. By passing the tension bolt 2 through the screw hole 3.1 and the insertion hole 5 in sequence and being in threaded fit with the threaded sleeve 7.1, the installation process between the tension bolt 2, the first color-changing indicator disk 3, and the second color-changing indicator disk 7 can be facilitated, which is conducive to their detachable installation process.
[0025] Preferably, a plug 1 is further provided on the outer side of the tension bolt 2.
[0026] Preferably, a screw hole 3.1 is opened at the center position of the surface of the first color-changing indicator disk 3, and a threaded sleeve 7.1 is arranged at the center position of the surface of the second color-changing indicator disk 7. By arranging the screw hole 3.1 and the threaded sleeve 7.1 at the center position, the tensile force exerted by the tension bolt 2 on the first color-changing indicator disk 3 and the second color-changing indicator disk 7 can be made more uniform.
[0027] Preferably, both the heat conduction rod 4 and the heat conduction cylinder 8 are made of copper heat-conducting materials.
[0028] Preferably, heat-conducting silica gel is applied on the surface of the heat conduction rod 4. Applying heat-conducting silica gel on the heat conduction rod 4 can increase the contact area and transfer heat.
[0029] Preferably, the number of the heat conduction rods 4 is multiple, and they are distributed in a circular array centered on the center position of the first color-changing indicator disk 3.
[0030] Preferably, the number of the heat-conducting cylinders 8 is multiple, and they are distributed in an annular array centered on the central position of the second color-changing indicator disc 7.
[0031] After arranging multiple heat-conducting rods 4 and heat-conducting cylinders 8 as above, the heat transfer can be made faster.
[0032] The working principle of this embodiment is as follows:
[0033] First, during installation, a plurality of insertion holes 5 are formed on the surface of the fire door 6. Then, heat-conducting silicone is applied to the surface of the heat-conducting rod 4. On one side of the fire door 6, the heat-conducting cylinder 8 is inserted into the insertion hole 5, and on the other side of the fire door 6, the heat-conducting rod 4 is inserted into the heat-conducting cylinder 8. Then, the tension rod 2 passes through the screw hole 3.1 and the insertion hole 5 in sequence and is in threaded cooperation with the threaded sleeve 7.1, thus completing the entire installation process.
[0034] At normal temperature, the temperature-sensitive color-changing coatings on the surfaces of the first color-changing indicator disc 3 and the second color-changing indicator disc 7 show green (as Figure 3 shown). When a fire occurs, a high-temperature environment is generated on one side of the fire door 6 corresponding to the fire passage, causing the temperature-sensitive color-changing coating of the first color-changing indicator disc 3 to show red, and the heat is transferred to the other side through the heat-conducting rod 4, making the color-changing coating of the second color-changing indicator disc 7 also show red (as Figure 4 shown). Thus, it can timely remind the staff, quickly inform them that a fire has occurred behind the fire door 6, so that they can give up opening the door from this passage and promptly choose to escape through the inner room passage without fire.
[0035] The above embodiments are only the preferred technical solutions of the present invention and should not be regarded as limitations on the present invention. The protection scope of the present invention should be the technical solutions recorded in the claims, including the equivalent replacement solutions of the technical features in the technical solutions recorded in the claims. That is, the equivalent replacement improvements within this scope are also within the protection scope of the present invention.
Claims
1. A fire door alarm indicating device, comprising a through hole (5) provided inside a fire door (6), characterized in that: The fire door (6) is provided with a first color-changing indicator disk (3) on one side and a second color-changing indicator disk (7) on the other side. The insertion hole (5) is slidably matched with the outer surface of the heat-conducting tube (8). The interior of the heat-conducting tube (8) is slidably matched with the outer surface of the heat-conducting rod (4). One end of the heat-conducting rod (4) is connected to the inner side surface of the first color-changing indicator disk (3), and one end of the heat-conducting tube (8) is connected to the inner side surface of the second color-changing indicator disk (7).
2. A fire door alarm indicator device according to claim 1, characterized in that: The outer side surface of the first color-changing indicator disc (3) and the outer side surface of the second color-changing indicator disc (7) are both coated with a thermochromic paint.
3. A fire door alarm indicator device according to claim 1, characterized in that: A tension screw (2) is also provided between the first color-changing indicator disk (3) and the second color-changing indicator disk (7) and is inserted into the insertion hole (5).
4. A fire door alarm indicator device according to claim 3, characterized in that: The surface of the first color-changing indicator disk (3) is provided with a screw hole (3.1), the surface of the second color-changing indicator disk (7) is fixedly connected with a threaded sleeve (7.1), and the tension screw (2) passes through the screw hole (3.1) and the insertion hole (5) in sequence and is threadably matched with the threaded sleeve (7.1).
5. A fire door alarm indicating device according to claim 4, characterized in that: A cover plug (1) is also provided on the outside of the tension screw (2).
6. A fire door alarm indicator device according to claim 4, characterized in that: A screw hole (3.1) is provided at the centre of the surface of the first colour-changing indicator disc (3), and a threaded sleeve (7.1) is provided at the centre of the surface of the second colour-changing indicator disc (7).
7. A fire door alarm indicator device according to claim 1, characterized in that: The heat conducting rod (4) and the heat conducting tube (8) are both made of copper heat conducting material.
8. The fire door alarm indicator device according to claim 1, characterized in that: The surface of the heat conducting rod (4) is coated with heat conducting silica gel.
9. A fire door alarm indicator device according to claim 1, characterized in that: The number of the heat conducting rods (4) is plural and they are distributed in a ring array at the center of the first color changing indicator disk (3).
10. A fire door alarm indicator device according to claim 1, characterized in that: The number of the heat-conducting tubes (8) is plural, and they are distributed in a ring array at the center of the second color-changing indicator disk (7).