A domestic firework ignition person-away alarm device
Through the innovative design of the fixed base and clamping components, the problem of existing kitchen fire alarm devices damaging walls and falling off has been solved, realizing a non-destructive and stable household fire alarm device for leaving people unattended.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHONGYUAN OPTOELECTRONICS TECHNOLOGY (NANJING) CO LTD
- Filing Date
- 2025-07-03
- Publication Date
- 2026-06-26
Smart Images

Figure CN224417371U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of hot work alarm technology, specifically a household hot work alarm device. Background Technology
[0002] With modern families placing increasing emphasis on safety, kitchen safety has become an area that cannot be ignored. During the cooking process, people may temporarily leave the kitchen area where cooking is taking place due to various reasons, such as answering the phone or temporarily leaving the kitchen. In this case, if there is still a burning flame on the stove, it may cause a fire accident.
[0003] Currently, alarm devices are fixed to the walls in the kitchen using screws or other structures. This installation method not only damages the walls, but also, due to the heavy load on the screws, the device is prone to falling off over time.
[0004] Therefore, this utility model provides a household fire alarm device for leaving people unattended, in order to solve the above problems. Summary of the Invention
[0005] This invention provides a household fire alarm device for use when leaving a person unattended, aiming to solve the problems mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution: It includes a fixed base and an alarm device body. A manual alarm button is provided on the front side of the alarm device body. An installation groove is provided at the front end of the fixed base. The fixed base is fixedly installed in the installation groove by screws. A protrusion is fixedly installed at the lower end of the fixed base. Synchronous pulleys are rotatably installed in both the fixed base and the protrusion. A synchronous belt is sleeved on both sets of synchronous pulleys. An internal hexagonal knob is rotatably installed in the protrusion. The internal hexagonal knob is fixedly connected to the synchronous pulley in the protrusion. A clamping assembly for fixing the fixed base and the alarm device body is provided inside the fixed base.
[0007] As a preferred technical solution of this application, a rubber pad is glued to the rear surface of the fixed base, and the rear surface of the rubber pad has a wavy anti-slip texture.
[0008] As a preferred technical solution of this application, the clamping assembly includes four sets of sliding grooves, which are formed in the rear end of the fixed base. Each of the four sets of sliding grooves is rotatably mounted with an adjusting screw. Each of the four sets of adjusting screws is threadedly connected to a slider. A first bevel gear is fixedly mounted on one opposite end of each of the four sets of adjusting screws. A second bevel gear is rotatably mounted in the fixed base. The second bevel gear meshes with the four sets of first bevel gears. The second bevel gear is fixedly connected to a synchronous wheel installed in the fixed base. A clamping plate is rotatably mounted on the rear side of each of the four sets of sliders.
[0009] As a preferred technical solution of this application, the four sets of clamps are arranged in a U-shape at opposite ends, and the opposite sides of the four sets of clamps are arranged in a flat shape.
[0010] As a preferred technical solution of this application, the opposite ends of the four sets of clamps are provided with regularly arranged circular protrusions.
[0011] As a preferred technical solution of this application, the outer wall length and width of the fixed base are greater than the outer wall length and width of the alarm device body, and the alarm device body and the inner wall length and width of the mounting groove are the same.
[0012] As a preferred technical solution of this application, a magnetic strip is provided on the front surface of the fixed base.
[0013] Beneficial effects
[0014] By inserting a tool into the hexagonal knob, the rotation of the tool and the hexagonal knob drives the two sets of synchronous pulleys and synchronous belts to rotate, thereby adjusting the clamping assembly. This eliminates the need for screws or other methods that damage the wall during installation, greatly simplifying the installation process and preventing wall damage. Furthermore, the clamping assembly's threaded connection and rotating installation design ensures a more secure fixation of the device, effectively preventing the risk of it falling off after prolonged use. Attached Figure Description
[0015] Figure 1 A front view schematic diagram of a household hot work and unattended alarm device;
[0016] Figure 2 A right-side structural breakdown diagram of a household hot work and unattended alarm device;
[0017] Figure 3 This is a front view structural cross-sectional schematic diagram of a household hot work and unattended alarm device;
[0018] Figure 4 A rear view schematic diagram of a household hot work and unattended alarm device;
[0019] Figure 5 for Figure 3 A magnified structural diagram at point A.
[0020] In the picture:
[0021] 1. Fixed base; 2. Alarm device body; 3. Manual alarm button; 4. Mounting slot; 5. Protrusion; 6. Slide groove; 7. Adjusting screw; 8. Slider; 9. First bevel gear; 10. Second bevel gear; 11. Synchronous pulley; 12. Synchronous belt; 13. Hexagonal knob; 14. Clamping plate. Detailed Implementation
[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0023] This utility model provides a household fire alarm device for leaving people unattended, such as Figure 1-5 As shown, the household hot work away from people alarm device includes a fixed base 1 and an alarm device body 2. A manual alarm button 3 is provided on the front side of the alarm device body 2. The front end of the fixed base 1 has an installation groove 4. The fixed base 1 is fixedly installed in the installation groove 4 by screws. A protrusion 5 is fixedly installed at the lower end of the fixed base 1. Synchronous pulleys 11 are rotatably installed in both the fixed base 1 and the protrusion 5. Synchronous belts 12 are sleeved on the two sets of synchronous pulleys 11. An internal hexagonal knob 13 is rotatably installed in the protrusion 5. The internal hexagonal knob 13 is fixedly connected to the synchronous pulley 11 in the protrusion 5. A clamping assembly for fixing the fixed base 1 and the alarm device body 2 is provided in the fixed base 1.
[0024] During use, the user can rotate the hexagonal knob 13. When the hexagonal knob 13 rotates within the protrusion 5, it drives the synchronous pulley 11, which is fixedly connected to it, to rotate. The rotation of the synchronous pulley 11 drives the synchronous belt 12, which is sleeved on its outside, to rotate. The user can insert a tool into the hexagonal knob 13. As the tool and the hexagonal knob 13 rotate, they drive the two sets of synchronous pulleys 11 and synchronous belt 12 to rotate, thereby driving the clamping assembly to adjust and clamp onto the wall protrusion. This eliminates the need for screws or other methods that damage the wall during installation of the fixed base 1 and the alarm device body 2, greatly simplifying the installation process.
[0025] The rear surface of the fixed base 1 is glued with a rubber pad, and the rear surface of the rubber pad has a wavy anti-slip texture.
[0026] During use, the rubber pad increases the friction between the fixed base 1 and the wall, effectively preventing the device from slipping and further improving its safety and stability. The wavy anti-slip texture not only enhances friction but also makes the device fit the wall more snugly during installation, improving the ease and stability of installation.
[0027] The clamping assembly includes four sets of sliding grooves 6, which are located at the rear end of the fixed base 1. Each of the four sets of sliding grooves 6 has an adjusting screw 7 rotatably mounted inside it. Each of the four sets of adjusting screws 7 has a slider 8 threadedly connected to it. Each of the four sets of adjusting screws 7 has a first bevel gear 9 fixedly mounted on one opposite end. A second bevel gear 10 is rotatably mounted inside the fixed base 1 and meshes with the four sets of first bevel gears 9. The second bevel gear 10 is fixedly connected to a synchronous wheel 11 installed inside the fixed base 1. Each of the four sliders 8 has a clamping plate 14 rotatably mounted on its rear side.
[0028] During use, when the synchronous wheel 11 rotates, it drives the second bevel gear 10 and the four sets of first bevel gears 9 to rotate, which in turn drives the four sets of adjusting screws 7 to rotate, causing the sliders 8 sleeved on the four sets of adjusting screws 7 to slide closer together, thereby clamping the four sets of clamping plates 14 onto the wall protrusions to adapt to wall protrusions of different sizes, thus improving the applicability and flexibility of the device.
[0029] The four sets of clamps 14 are arranged in a U-shape at opposite ends, and the opposite side of the four sets of clamps 14 is set in a flat shape.
[0030] The U-shaped design makes the clamping plate 14 fit more stably when clamping the annular protrusion on the wall, and it is not easy to slip off. Flipping the four sets of clamping plates 14 makes the four sets of clamping plates 14 flat, which facilitates the fit between them and the flat wall protrusion, and improves the clamping firmness.
[0031] The four sets of clamping plates 14 each have regularly arranged circular protrusions on opposite ends of their surfaces.
[0032] During use, the regularly arranged circular protrusions increase the friction between the clamping plate 14 and the wall surface protrusions, effectively preventing the device from slipping after long-term use and further improving the safety and stability of the device. At the same time, the circular protrusions also make the clamping plate 14 fit the wall protrusions more closely during clamping, improving the tightness and firmness of the clamping.
[0033] The outer wall length and width of the fixed base 1 are greater than the outer wall length and width of the alarm device body 2, and the inner wall length and width of the alarm device body 2 are the same as those of the mounting groove 4.
[0034] This allows the mounting base 1 to better enclose the alarm device body 2 during installation, increasing overall stability. At the same time, the alarm device body 2 and the inner wall of the mounting groove 4 are the same size, allowing the alarm device body 2 to be tightly installed in the mounting groove 4, further improving the overall stability and robustness of the device.
[0035] A magnetic strip is provided on the front surface of the fixed base 1.
[0036] This facilitates the adhesion of the metal protective shell to the magnetic strip on the front of the fixed base 1, thereby protecting the alarm device body 2 installed in the mounting slot 4.
[0037] Working principle: When using the device, the user first inserts a tool into the hexagonal knob 13 and rotates it. Since the hexagonal knob 13 is fixedly connected to the synchronous wheel 11 in the protrusion 5, the rotation of the hexagonal knob 13 will drive the synchronous wheel 11 to rotate, which in turn drives the synchronous belt 12 sleeved on the outside of the synchronous wheel 11 to rotate, and drives the synchronous wheel 11 in the fixed base 1 to rotate. With the rotation of the two sets of synchronous wheels 11 and the synchronous belt 12, the rotation of the synchronous wheel 11 in the fixed base 1 drives the second bevel gear 10 to rotate. The rotation of the second bevel gear 10 drives the four sets of meshing first bevel gears 9 to rotate, which in turn drives the four sets of adjusting screws 7 to rotate in the four sets of sliding grooves 6. The rotation of the four sets of adjusting screws 7 drives the four sets of sliders 8 to slide and adjust in the four sets of sliding grooves 6, so that the clamping plates 14 installed on the four sets of sliders 8 slide, and finally clamps the four sets of clamping plates 14 on the wall protrusion.
[0038] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A domestic fire lighting man away alarm device comprising a fixed base (1) and an alarm device body (2), characterised in that: The front side of the alarm device body (2) is provided with a manual alarm button (3). The front end of the fixed base (1) is provided with an installation groove (4). The fixed base (1) is fixedly installed in the installation groove (4) by screws. The lower end of the fixed base (1) is fixedly installed with a protrusion (5). Synchronous wheels (11) are rotatably installed in both the fixed base (1) and the protrusion (5). Synchronous belts (12) are sleeved on the two sets of synchronous wheels (11). An internal hexagonal knob (13) is rotatably installed in the protrusion (5). The internal hexagonal knob (13) is fixedly connected to the synchronous wheel (11) in the protrusion (5). The fixed base (1) is provided with a clamping component for fixing the fixed base (1) and the alarm device body (2).
2. A domestic fire lighting away person alarm according to claim 1, characterised in that: The rear surface of the fixed base (1) is glued with a rubber pad, and the rear surface of the rubber pad has a wavy anti-slip texture.
3. A household hot work and unattended alarm device according to claim 1, characterized in that: The clamping assembly includes four sets of sliding grooves (6), which are located at the rear end of the fixed base (1). Each of the four sets of sliding grooves (6) is rotatably fitted with an adjusting screw (7). Each of the four sets of adjusting screws (7) is threaded onto a slider (8). Each of the four sets of adjusting screws (7) is fixedly fitted with a first bevel gear (9) at one end. A second bevel gear (10) is rotatably fitted inside the fixed base (1). The second bevel gear (10) meshes with the four sets of first bevel gears (9). The second bevel gear (10) is fixedly connected to a synchronous wheel (11) installed inside the fixed base (1). Each of the four sets of sliders (8) is rotatably fitted with a clamping plate (14).
4. A household hot work and unattended alarm device according to claim 3, characterized in that: The four sets of clamps (14) are arranged in a U-shape at opposite ends, and the opposite side of the four sets of clamps (14) is arranged in a flat shape.
5. A household hot work and unattended alarm device according to claim 3, characterized in that: The four sets of clamps (14) have regularly arranged circular protrusions on opposite ends of their surfaces.
6. A household hot work and unattended alarm device according to claim 1, characterized in that: The outer wall length and width of the fixed base (1) are greater than the outer wall length and width of the alarm device body (2), and the inner wall length and width of the alarm device body (2) are the same as those of the mounting groove (4).
7. A household hot work and unattended alarm device according to claim 1, characterized in that: A magnetic strip is provided on the front surface of the fixed base (1).