Modular, detachable smoke detector
Through modular design and innovative connection structure, the problem of complex disassembly of existing smoke detectors has been solved, achieving convenient maintenance and reduced costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 湖南坦尼森消防设备有限公司
- Filing Date
- 2025-08-14
- Publication Date
- 2026-06-12
AI Technical Summary
Existing smoke detectors are modular and cannot be disassembled, which means that the entire device needs to be disassembled when the battery is depleted, the sensor is aging, or the alarm device fails. This process is complicated and costly.
It adopts a modular design, connecting the detection module, alarm module and power module through plug-in interfaces and foolproof structure. The shell and top cover are disassembled using internal and external threaded connectors. The magnetic base is used for fixation and supports installation on various wall materials.
This enables convenient assembly and disassembly of modular smoke detectors, reducing maintenance costs and improving installation efficiency and smoke detection accuracy.
Smart Images

Figure CN224354898U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of smoke detector technology, and in particular to a modular and detachable smoke detector. Background Technology
[0002] Smoke detectors are key equipment for fire prevention. They provide early warning by monitoring the concentration of smoke in the environment. Currently, most smoke detectors adopt an integrated structural design, in which functional components such as detection, alarm, and power supply are fixedly connected to the main body shell.
[0003] However, existing technologies have some problems: existing smoke detectors are modular and cannot be disassembled. When the battery is depleted, the sensor ages, or the alarm device malfunctions, the entire device needs to be disassembled or even replaced. This is complicated and costly. Therefore, it is necessary to provide a modular and detachable smoke detector to solve the above technical problems. Utility Model Content
[0004] This invention provides a modular and detachable smoke detector, which solves the technical problem that existing smoke detectors are modular and cannot be disassembled. When the battery is depleted, the sensor ages, or the alarm device malfunctions, the entire device needs to be disassembled or even replaced, which is complicated and costly.
[0005] To solve the above-mentioned technical problems, this utility model provides a modular and detachable smoke detector, comprising:
[0006] The outer casing has a main control module fixedly connected to its lower end. The main control module has at least three standardized interfaces on its left side. A detection module, an alarm module, and a power module are connected to the left side of the standardized interfaces in sequence from front to back via plug-in interfaces. The upper end of the outer casing has a top cover with a ventilation window on its surface. A filter assembly is located at the upper end of the inside of the top cover.
[0007] Preferably, the lower end of the top cover is fixedly connected to an internal threaded connector, the internal thread of the internal threaded connector is connected to an external threaded connector, the lower end of the external threaded connector is fixedly connected to the upper end of the outer shell, and the internal threaded connector and the external threaded connector are used for disassembling and assembling the outer shell and the top cover.
[0008] Preferably, the plug-in interface is a foolproof structure, and the foolproof structure includes a positioning groove and a matching positioning protrusion.
[0009] Preferably, the detection module includes a smoke intake grille optical sensing component, and the alarm module includes a buzzer and a warning light, wherein the buzzer and the warning light are disposed on the surface of the housing and electrically connected to the main control module.
[0010] Preferably, the filter assembly consists of a stainless steel filter screen and a polytetrafluoroethylene membrane, with the stainless steel filter screen positioned above the polytetrafluoroethylene membrane.
[0011] Preferably, a magnetic base is fixedly connected to the lower end of the outer shell, and fixing holes are provided around the upper end of the magnetic base.
[0012] Compared with related technologies, the modular and detachable smoke detector provided by this utility model has the following advantages:
[0013] This utility model provides a modular and detachable smoke detector, which can be independently plugged in through a foolproof interface on the plug-in interface. The detection module, alarm module and power supply module can be easily disassembled and assembled during use, and a single module can be directly replaced when it fails, thus reducing maintenance costs.
[0014] This utility model provides a modular detachable smoke detector. Through the cooperation of internal and external threaded connectors, the outer shell and the top cover can be easily disassembled. The filter component inside the top cover can be directly removed for cleaning or replacement after being exposed, ensuring the accuracy of smoke detection.
[0015] This utility model provides a modular and detachable smoke detector. With the magnetic base, the outer shell can be quickly installed on a metal surface during use, and the fixing holes support screw fixing, adapting to various wall materials and improving installation efficiency. Attached Figure Description
[0016] Figure 1 A schematic diagram of a preferred embodiment of a modular and detachable smoke detector provided by this utility model;
[0017] Figure 2 This is a top sectional view of the outer shell structure of this utility model;
[0018] Figure 3 This is a bottom sectional view of the top cover structure of this utility model.
[0019] The following components are labeled in the diagram: 1. Outer shell; 2. Main control module; 3. Plug-in interface; 4. Detection module; 5. Alarm module; 6. Power module; 7. Ventilation window; 8. Filter assembly; 9. Internal threaded connector; 10. External threaded connector; 11. Magnetic base; 12. Top cover. Detailed Implementation
[0020] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.
[0021] Example 1:
[0022] Please see Figure 1-3This utility model provides a technical solution: a modular detachable smoke detector, including: a shell 1, a main control module 2 fixedly connected to the lower end inside the shell 1, at least three standardized interfaces provided on the left side of the main control module 2, and a detection module 4, an alarm module 5 and a power module 6 connected to the left side of the standardized interfaces through plug-in interfaces 3 from front to back, a top cover 12 provided on the upper end of the shell 1, a ventilation window 7 opened on the surface of the top cover 12, and a filter assembly 8 provided on the upper end inside the top cover 12.
[0023] In this embodiment, the outer shell 1 can be fixed by adsorption on the metal surface of the magnetic base 11; the non-metallic surface is fixed by screws through the fixing holes. The detection module 4, alarm module 5, and power module 6 are connected to the standardized interface on the main control module 2 through the plug-in interface 3. The positioning protrusion and positioning groove on the foolproof structure cooperate to ensure correct connection.
[0024] Example 2:
[0025] Please see Figure 1-3 As shown, based on Embodiment 1, this utility model provides a technical solution: the lower end of the upper cover 12 is fixedly connected to an internal threaded connector 9, the internal thread of the internal threaded connector 9 is connected to an external threaded connector 10, the lower end of the external threaded connector 10 is fixedly connected to the upper end of the outer shell 1, the internal threaded connector 9 and the external threaded connector 10 are used for disassembling and assembling the outer shell 1 and the upper cover 12, the plug-in interface 3 is a foolproof structure, and the foolproof structure includes a positioning groove and a matching positioning protrusion, the detection module 4 includes a smoke inlet grille optical sensing component, the alarm module 5 includes a buzzer and a warning light, and the buzzer and warning light are set on the surface of the outer shell 1 and electrically connected to the main control module 2, the filter component 8 is composed of a stainless steel filter screen and a polytetrafluoroethylene membrane, and the stainless steel filter screen is located above the polytetrafluoroethylene membrane, the lower end of the outer shell 1 is fixedly connected to a magnetic base 11, and the upper end of the magnetic base 11 is provided with fixing holes around its perimeter.
[0026] In this embodiment: ambient smoke enters through the ventilation window 7 of the top cover 12. The stainless steel filter in the filter assembly 8 can intercept large particulate impurities such as insects and fibers, while the polytetrafluoroethylene membrane can filter micro-particles such as dust and oil fumes. The purified smoke enters the detection module 4, which converts the smoke concentration into an electrical signal and transmits it to the main control module 2. The main control module 2 compares the signal with a preset threshold. If it determines that there is a fire, it drives the buzzer on the alarm module 5 to sound and the warning light to flash. When the filter assembly 8 needs to be cleaned, the top cover 12 is rotated to separate the internal threaded connector 9 from the external threaded connector 10, and the filter assembly 8 can be removed. If a module fails, the corresponding plug-in interface 3 can be directly unplugged to replace the new module without disassembling the entire machine.
[0027] The working principle of the modular and detachable smoke detector provided by this utility model is as follows:
[0028] Implementation steps for the first innovation point:
[0029] Step 1: The outer shell 1 can be fixed by adsorption on the metal surface of the magnetic base 11; the non-metallic surface is fixed with screws through the fixing holes. The detection module 4, alarm module 5, and power module 6 are connected to the standardized interface on the main control module 2 through the plug-in interface 3.
[0030] Step 2: The positioning protrusions on the foolproof structure cooperate with the positioning grooves to ensure correct connection.
[0031] Implementation steps for the second innovation point:
[0032] Step 1: Ambient smoke enters through the ventilation window 7 of the top cover 12. The stainless steel filter in the filter assembly 8 can intercept large particles such as insects and fibers, while the polytetrafluoroethylene membrane can filter micro particles such as dust and oil fumes. The purified smoke enters the detection module 4, which converts the smoke concentration into an electrical signal and transmits it to the main control module 2. The main control module 2 compares the signal with a preset threshold. If it determines that there is a fire, it drives the buzzer on the alarm module 5 to sound and the warning light to flash.
[0033] Step 2: When the filter assembly 8 needs to be cleaned, rotate the top cover 12 to separate the internal threaded connector 9 from the external threaded connector 10, and then remove the filter assembly 8. If a module fails, simply unplug the corresponding plug-in interface 3 to replace the new module without disassembling the entire machine.
[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A modular, detachable smoke detector, characterized in that: include: The outer shell (1) has a main control module (2) fixedly connected to its lower end. The main control module (2) has at least three standardized interfaces on its left side. The left side of the standardized interfaces is connected to a detection module (4), an alarm module (5), and a power module (6) through a plug-in interface (3) from front to back. The upper end of the outer shell (1) has a top cover (12). The surface of the top cover (12) has a ventilation window (7). The upper end of the inside of the top cover (12) has a filter assembly (8).
2. The modular detachable smoke detector according to claim 1, characterized in that, The lower end of the upper cover (12) is fixedly connected to an internal threaded connector (9), and the internal thread of the internal threaded connector (9) is connected to an external threaded connector (10). The lower end of the external threaded connector (10) is fixedly connected to the upper end of the outer shell (1). The internal threaded connector (9) and the external threaded connector (10) are used for disassembling and assembling the outer shell (1) and the upper cover (12).
3. A modular, detachable smoke detector according to claim 1, characterized in that, The plug-in interface (3) is a foolproof structure, and the foolproof structure includes a positioning groove and a matching positioning protrusion.
4. A modular, detachable smoke detector according to claim 1, characterized in that, The detection module (4) includes a smoke intake grille optical sensing component, and the alarm module (5) includes a buzzer and a warning light, and the buzzer and warning light are disposed on the surface of the housing (1) and electrically connected to the main control module (2).
5. A modular, detachable smoke detector according to claim 1, characterized in that, The filter assembly (8) consists of a stainless steel filter screen and a polytetrafluoroethylene membrane, with the stainless steel filter screen positioned above the polytetrafluoroethylene membrane.
6. A modular, detachable smoke detector according to claim 1, characterized in that, The lower end of the outer shell (1) is fixedly connected to a magnetic base (11), and the upper end of the magnetic base (11) is provided with fixing holes around its perimeter.