Smoke sensing alarm device for hospital
By introducing an annular housing, filter components, and detection components into the smoke alarm device, and utilizing a fan to control airflow and a dehumidifying filter plate to handle moisture, the problem of low smoke detection sensitivity is solved, enabling early fire alarm and location positioning, and enhancing fire response capabilities.
Patent Information
- Application Number
- CN202520242065.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-14
- Publication Date
- 2025-12-02
- Estimated Expiration
- 2035-02-14
AI Technical Summary
Existing smoke detectors have low sensitivity when smoke rises slowly and moisture content is high, making them unable to detect fires in a timely and effective manner.
It adopts a design with a ring-shaped shell, a filter assembly, a detection assembly, and a suction assembly. The filter assembly, detection assembly, and suction assembly on the ring-shaped shell are controlled by a fan. Combined with a dehumidifying filter plate and a detection head, it can achieve efficient filtration and detection of smoke.
It improves the sensitivity and accuracy of smoke detection, ensuring timely alarms in the early stages of a fire, and automatically locates the smoking location when warnings are ineffective, thus enhancing the effectiveness of fire response.
Smart Images

Figure CN223624650U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of smoke alarm devices, and more specifically, to a smoke alarm device for use in hospitals. Background Technology
[0002] Smoke detectors are an important type of fire-fighting equipment. Using photoelectric or ionization technologies, they can sensitively detect smoke produced by a fire. When the smoke particles reach a certain concentration, the device immediately emits a high-decibel buzzer and flashing red light, alerting people to take timely escape or fire-fighting measures. They are widely used in various buildings such as residences, shopping malls, and hotels, providing strong protection for people's lives and property.
[0003] A search revealed an existing patent (publication number: CN220526424U) disclosing a smoke alarm device, including a mounting housing. Inside the mounting housing is a mounting cover, and inside the mounting cover is an alarm. The alarm has a speaker at its bottom, a sensor head on one side, and a positioning component at its top. A protective cover is mounted on one side of the mounting cover, and a dustproof net is installed on the outer surface of the protective cover. The coordinated use of the mounting housing, mounting cover, alarm, speaker, sensor head, positioning component, connecting component, protective cover, and dustproof net allows dust and small insects to be prevented from entering the protective cover, thus avoiding interference with the sensor head's smoke detection performance. This improves the sensitivity of the alarm device, enabling it to detect fires immediately, providing time for evacuation and reducing losses caused by fire.
[0004] However, the above-mentioned device relies solely on the natural rise of the smoke, which has a slow rising rate, and when the water vapor content in the smoke is high, it is difficult to guarantee the sensitivity of the detection. Utility Model Content
[0005] In order to overcome the above-mentioned defects of the prior art, this utility model provides a smoke alarm device for hospitals to solve the problems of slow efficiency and low detection sensitivity.
[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a smoke alarm device for hospitals, comprising: an annular housing; a filter assembly mounted on the annular housing, the filter assembly being used for dehumidification and filtration; a detection assembly mounted inside the annular housing, the detection assembly being used for detection and sensing; a suction assembly mounted at the bottom of the detection assembly, the suction assembly being used to increase absorption efficiency; and a mounting assembly mounted at the bottom of the suction assembly, the mounting assembly being used for fixation.
[0007] Preferably, the filter assembly includes: a protective housing fixedly installed on the top of the annular housing, the protective housing having an installation groove, and a removable dehumidifying filter plate installed on the installation groove.
[0008] Preferably, four sets of mounting slots and dehumidifying filter plates are provided, and the four sets of mounting slots and dehumidifying filter plates are equidistantly opened on the outer surface of the protective shell.
[0009] Preferably, the detection component includes: a mounting base fixedly installed inside the annular housing, the mounting base having a through hole, a detection head fixedly installed on one side of the mounting base, and an alarm fixedly installed on the mounting base.
[0010] Preferably, the suction assembly includes: a mounting housing detachably mounted on the bottom of the mounting base, a insertion ring fixedly mounted on the top of the mounting housing, the mounting housing being detachably mounted to the mounting base via the insertion ring, a fan being assembled inside the mounting housing, and a dust filter plate being fixedly mounted on the bottom of the mounting housing.
[0011] Preferably, the mounting assembly includes: a mounting ring fixedly mounted on the bottom of the dust filter plate, the mounting ring having ventilation holes.
[0012] Preferably, four sets of vent holes are provided, and the four sets of vent holes are equally spaced on the mounting ring.
[0013] Preferably, the fan is controlled by a motor to rotate in both directions.
[0014] Compared with the prior art, the beneficial effects of this utility model are:
[0015] This invention features a system that triggers a primary alarm when someone lights a cigarette in the hospital. At this time, a fan, controlled by a motor, rotates forward, drawing in surrounding air through vents on the mounting ring. The air is filtered by a dust filter before entering the mounting housing and then through a through-hole into the mounting base. When cigarette smoke is detected, a secondary alarm is triggered. The detection head senses the smoke, and the alarm sounds. If the warning fails, the system automatically sends the smoking location information to the ward administrator. In this case, the fan can reverse, more effectively guiding the smoke to the detection head. Simultaneously, a dehumidifying filter on the protective housing dehumidifies the moisture in the smoke, ensuring detection sensitivity. Four equidistant mounting slots, the dehumidifying filter, and vents ensure uniform airflow and filtration of the smoke. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0017] Figure 2This is a schematic diagram of the filter assembly structure of this utility model;
[0018] Figure 3 This is a schematic diagram of the detection component structure of this utility model;
[0019] Figure 4 This is a schematic diagram of the suction component and mounting component of this utility model.
[0020] [Figure Labels]
[0021] 1. Annular outer shell; 2. Filter assembly; 3. Detection assembly; 4. Suction assembly; 5. Mounting assembly; 201. Protective shell; 202. Mounting groove; 203. Dehumidifying filter plate; 301. Mounting base; 302. Through hole; 303. Detection head; 304. Alarm; 401. Mounting shell; 402. Insertion ring; 403. Fan; 404. Dustproof filter plate; 501. Mounting ring; 502. Vent hole. Detailed Implementation
[0022] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this utility model.
[0023] Example 1
[0024] A preferred embodiment of the smoke detector alarm device for hospitals provided by this utility model is, for example... Figures 1 to 4 As shown: It includes: an annular shell 1; a filter assembly 2 mounted on the annular shell 1, the filter assembly 2 being used for dehumidification and filtration; a detection assembly 3 mounted inside the annular shell 1, the detection assembly 3 being used for detection and sensing; a suction assembly 4 mounted at the bottom of the detection assembly 3, the suction assembly 4 being used to increase absorption efficiency; and a mounting assembly 5 mounted at the bottom of the suction assembly 4, the mounting assembly 5 being used for fixing.
[0025] In this embodiment, the filter assembly 2 includes: a protective housing 201 fixedly installed on the top of the annular housing 1, a mounting groove 202 provided on the protective housing 201, and a detachable dehumidifying filter plate 203 installed on the mounting groove 202.
[0026] In this embodiment, four sets of mounting slots 202 and dehumidifying filter plates 203 are provided, and the four sets of mounting slots 202 and dehumidifying filter plates 203 are equidistantly opened on the outer surface of the protective shell 201.
[0027] In this embodiment, the detection component 3 includes: a mounting base 301 fixedly installed inside the annular outer shell 1, a through hole 302 opened on the mounting base 301, a detection head 303 fixedly installed on one side of the mounting base 301, and an alarm 304 fixedly installed on the mounting base 301.
[0028] Example 2
[0029] Based on Embodiment 1, a preferred embodiment of the smoke alarm device for hospitals provided by this utility model is, for example... Figures 1 to 4 As shown: The suction assembly 4 includes: a mounting housing 401 that is detachably mounted on the bottom of the mounting base 301, a skewing ring 402 that is fixedly mounted on the top of the mounting housing 401, the mounting housing 401 being detachably mounted to the mounting base 301 via the skewing ring 402, a fan 403 that is assembled inside the mounting housing 401, and a dust filter plate 404 that is fixedly mounted on the bottom of the mounting housing 401.
[0030] In this embodiment, the mounting component 5 includes a mounting ring 501 fixedly mounted on the bottom of the dust filter plate 404, and the mounting ring 501 has a vent hole 502.
[0031] In this embodiment, four sets of vent holes 502 are provided, and the four sets of vent holes 502 are equally spaced on the mounting ring 501.
[0032] In this embodiment, the fan 403 is controlled by a motor to rotate forward and reverse.
[0033] When someone starts smoking in the hospital, a Level 1 alarm is activated. At this time, the fan 403 starts rotating forward under motor control, drawing in surrounding air through the vent 502 on the mounting ring 501. The air is filtered by the dust filter plate 404 before entering the mounting housing 401, and then through the through hole 302 into the mounting base 301. When smoke from a cigarette is detected, a Level 2 alarm is triggered. The detection head 303 senses the smoke, and the alarm 304 sounds an alarm. If the warning is ineffective, the system automatically sends the smoking location information to the ward administrator. At this time, the fan 403 can reverse to more effectively guide the smoke to the detection head 303. Simultaneously, the dehumidifying filter plate 203 on the protective housing 201 can dehumidify the smoke containing moisture, ensuring detection sensitivity. The four sets of equidistant mounting slots 202, the dehumidifying filter plates 203, and the vent 502 ensure uniform airflow and filtration of smoke.
[0034] Finally, the following points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", and "linkage" should be interpreted broadly, and can be mechanical or electrical connections, or internal connections between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change.
[0035] Secondly: The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.
[0036] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A smoke detector alarm device for use in hospitals, characterized in that, include: Annular shell (1); A filter assembly (2) is mounted on the annular housing (1), the filter assembly (2) being used for dehumidification and filtration; A detection component (3) is assembled inside the annular housing (1), the detection component (3) being used for detection and probing; The suction component (4) is assembled at the bottom of the detection component (3), and the suction component (4) is used to increase the absorption efficiency; The mounting component (5) is assembled at the bottom of the suction assembly (4) and is used for fixing.
2. A smoke detector alarm device for a hospital according to claim 1, characterized in that, The filter component (2) includes: A protective housing (201) is fixedly installed on the top of the annular housing (1). The protective housing (201) has an installation groove (202) and a detachable dehumidifying filter plate (203) is installed on the installation groove (202).
3. A smoke detector alarm device for a hospital according to claim 2, characterized in that, The mounting groove (202) and dehumidifying filter plate (203) are provided in four sets, and the four sets of mounting groove (202) and dehumidifying filter plate (203) are equally spaced on the outer surface of the protective shell (201).
4. A smoke detector alarm device for a hospital according to claim 3, characterized in that, The detection component (3) includes: A mounting base (301) is fixedly installed inside the annular outer shell (1). A through hole (302) is provided on the mounting base (301). A detection head (303) is fixedly installed on one side of the mounting base (301). An alarm (304) is fixedly installed on the mounting base (301).
5. A smoke detector alarm device for a hospital according to claim 4, characterized in that, The suction component (4) includes: A mounting housing (401) is detachably installed at the bottom of the mounting base (301). A sprue ring (402) is fixedly installed on the top of the mounting housing (401). The mounting housing (401) is detachably installed to the mounting base (301) via the sprue ring (402). A fan (403) is installed inside the mounting housing (401). A dust filter plate (404) is fixedly installed at the bottom of the mounting housing (401).
6. A smoke detector for a hospital according to claim 5, characterized in that, The installation component (5) includes: A mounting ring (501) is fixedly installed at the bottom of the dust filter plate (404), and a vent hole (502) is provided on the mounting ring (501).
7. A smoke detector alarm device for a hospital according to claim 6, characterized in that, The ventilation holes (502) are provided in four sets, and the four sets of ventilation holes (502) are equally spaced on the mounting ring (501).
8. A smoke detector alarm device for a hospital according to claim 5, characterized in that, The fan (403) is controlled by a motor to rotate forward and reverse.
Citation Information
Patent Citations
Smoke sensing alarm device
CN220526424U