Kitchen gas leakage alarm equipment
By introducing a forced gas flow component and a cleaning sensor component, the problems of missed alarms and oil stains in kitchen gas leak alarm devices have been solved, achieving rapid response and self-cleaning functions, and improving the safety and reliability of the equipment.
Patent Information
- Application Number
- CN202520629289.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-07
- Publication Date
- 2026-01-23
- Estimated Expiration
- 2035-04-07
AI Technical Summary
Existing kitchen gas leak alarm devices are prone to false alarms and have reduced sensitivity due to oil stains on the sensor surface.
A gas leak alarm device was designed, comprising an exhaust fan, a spray system, and a monitoring system. The device utilizes a duct fan to generate negative pressure to force gas flow, the spray system removes oil stains with cleaning fluid, and the monitoring system facilitates sensor replacement.
It effectively avoids localized gas accumulation, reduces the risk of missed alarms, improves alarm response speed, prevents sensor sensitivity degradation, and reduces safety hazards.
Smart Images

Figure CN223826085U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of gas leak alarm devices, and in particular to a kitchen gas leak alarm device. Background Technology
[0002] A gas leak alarm device is a device used to detect the concentration of gas. When the gas concentration reaches a dangerous threshold, the device will issue an audible and visual alarm to remind people to deal with it in time and avoid accidents such as fire, explosion, and poisoning. The type of gas that may leak in the kitchen is natural gas, the main component of which is methane. After it leaks, it will accumulate on the roof.
[0003] However, natural gas leaks can cause local accumulation, and the area of accumulation may not be within the detection range of alarm devices. This causes existing kitchen gas leak alarm devices to fail to detect leaks and can only trigger an alarm after the natural gas has accumulated to a certain volume.
[0004] Meanwhile, after long-term use in the kitchen, oil stains will accumulate on the surface of the sensor, causing the sensor's response threshold to increase and its sensitivity to decrease.
[0005] Therefore, a kitchen gas leak alarm device is proposed to solve the above problems. Utility Model Content
[0006] The purpose of this invention is to solve the problems of potential false alarms and oil stains on the surface of existing gas leak alarm devices, and to propose a kitchen gas leak alarm device.
[0007] To achieve the above objectives, the present invention adopts the following technical solution:
[0008] A kitchen gas leak alarm device includes a mounting base, an installation pipe fixedly connected to the upper surface of the mounting base, a small industrial computer fixedly connected to the lower surface of the mounting base, an air-expelling assembly provided on the inner wall of the top of the installation pipe, a spray assembly provided on the inner wall of the bottom of the installation pipe, a protective cover fixedly connected to the bottom of the installation pipe, and a monitoring assembly detachably connected to the bottom of the protective cover.
[0009] Preferably, the outer wall of the mounting tube has a through hole.
[0010] Preferably, the air intake assembly includes a duct fan and a ventilation duct. The duct fan is fixedly installed on the inner wall of the top of the installation duct. The duct fan passes through the installation duct and is electrically connected to a small industrial control computer. The input end of the ventilation duct is fixedly connected to the top of the installation duct, and the output end of the ventilation duct is located outdoors.
[0011] Preferably, the spray assembly includes a bracket, which is fixedly connected to the inner wall of the mounting pipe, and a small spray head is fixedly installed at the center of the bracket.
[0012] Preferably, the bottom of the small nozzle is provided with a disc-shaped nozzle, and the top of the small nozzle is fixedly connected with a threaded tube.
[0013] Preferably, the protective cover has multiple ventilation holes on its side wall, and a threaded ring is fixedly connected to the bottom of the protective cover.
[0014] Preferably, the monitoring component includes a bottom cover, a water guide cone is fixedly connected to the upper surface of the bottom cover, a sensor is fixedly installed inside the water guide cone, and the sensor is electrically connected to a small industrial control computer.
[0015] Preferably, the edge of the water guide cone is provided with a drainage groove, the inner wall of the drainage groove away from the water guide cone is provided with a thread, and the bottom of the drainage groove is provided with a plurality of drainage holes arranged in a ring.
[0016] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0017] 1. This utility model, by setting up an air intake component, uses a duct fan to generate negative pressure, continuously drawing in air from the top of the kitchen and expelling it outdoors, forcing gas flow to avoid local accumulation of gas, ensuring that all leaked gas enters the detection area, reducing the risk of missed alarms, improving alarm response speed, and reducing indoor safety hazards.
[0018] 2. This utility model, by setting up a spray assembly, evenly sprays cleaning liquid through a disc-shaped nozzle. It utilizes the emulsification effect of the cleaning agent mixed with water to decompose oil stains, thereby removing oil stains from the inner wall of the protective cover and the surface of the sensor, preventing oil buildup that could lead to a decrease in sensor sensitivity.
[0019] 3. This utility model, by setting up a monitoring component, enables quick disassembly and assembly through rotating the bottom cover, facilitating sensor replacement and maintenance. Attached Figure Description
[0020] Figure 1 This is a three-dimensional structural diagram of a kitchen gas leak alarm device proposed in this utility model;
[0021] Figure 2 This is a cross-sectional view of the internal structure of a kitchen gas leak alarm device proposed in this utility model;
[0022] Figure 3 This is a cross-sectional view of the spray assembly in a kitchen gas leak alarm device proposed in this utility model;
[0023] Figure 4 This is a cross-sectional view of the monitoring component in a kitchen gas leak alarm device proposed in this utility model;
[0024] Figure 5This is a cross-sectional view of the bottom cover of a kitchen gas leak alarm device proposed in this utility model.
[0025] In the diagram: 1. Mounting base; 2. Mounting pipe; 3. Mini industrial computer; 4. Protective cover; 5. Through hole; 6. Duct fan; 7. Ventilation pipe; 8. Bracket; 9. Mini nozzle; 10. Disc nozzle; 11. Threaded pipe; 12. Vent hole; 13. Threaded ring; 14. Bottom cover; 15. Water guide cone; 16. Sensor; 17. Drainage groove; 18. Drainage hole. Detailed Implementation
[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.
[0027] Reference Figure 1-5 A kitchen gas leak alarm device includes a mounting base 1, an installation pipe 2 fixedly connected to the upper surface of the mounting base 1, a small industrial computer 3 fixedly connected to the lower surface of the mounting base 1, an air-guiding component provided on the inner wall of the top of the installation pipe 2, a spray component provided on the inner wall of the bottom of the installation pipe 2, a protective cover 4 fixedly connected to the bottom of the installation pipe 2, and a monitoring component detachably connected to the bottom of the protective cover 4.
[0028] Furthermore, the outer wall of the mounting pipe 2 is provided with a through hole 5, so that the water pipe in the prior art can be connected to the small nozzle 9 to support the operation of the spray assembly.
[0029] Furthermore, the air intake assembly includes a duct fan 6 and a ventilation duct 7. The duct fan 6 is fixedly installed on the inner wall of the top of the mounting pipe 2. The duct fan 6 passes through the mounting pipe 2 and is electrically connected to the small industrial control computer 3. The input end of the ventilation duct 7 is fixedly connected to the top of the mounting pipe 2, and the output end of the ventilation duct 7 is located outdoors.
[0030] The further advantages of adopting the above are: when the duct fan 6 is working, it uses mechanical energy to generate negative pressure, drawing air from the kitchen ceiling into the installation pipe 2, and then exhausting it to the outside through the ventilation pipe 7, thus achieving the function of ventilation. During this process, if there is any leaked natural gas, it will enter the protective cover 4 along with the air and be detected by the sensor 16. Then the industrial control computer will issue an alarm, and finally it will be discharged to the outside. This not only avoids the failure to report due to local accumulation of natural gas, but also reduces indoor safety hazards.
[0031] Furthermore, the spray assembly includes a bracket 8, which is fixedly connected to the inner wall of the mounting pipe 2. A small nozzle 9 is fixedly installed at the center of the bracket 8. A disc-shaped nozzle 10 is provided at the bottom of the small nozzle 9, and a threaded pipe 11 is fixedly connected to the top of the small nozzle 9.
[0032] It should be noted that the small nozzle 9 is connected to the water pipe via the threaded tube 11, and the water pipe is connected to the water pump to deliver cleaning water mixed with detergent. Both the water pipe and the water pump are existing technologies.
[0033] The further advantage of the above is that when cleaning is required, the cleaning water is pumped into the small nozzle 9 and sprayed onto the inner wall of the protective cover 4 through the disc nozzle 10. The emulsification effect of the cleaning agent mixed in the cleaning water disperses the attached oil stains into fine oil droplets and washes them away with the water, thus achieving a self-cleaning effect and avoiding the oil stains covering the sensor 16, which would cause its response threshold to increase.
[0034] Furthermore, the protective cover 4 has multiple ventilation holes 12 on its side wall, and a threaded ring 13 is fixedly connected to the bottom of the protective cover 4.
[0035] Furthermore, the monitoring component includes a bottom cover 14, a water guide cone 15 is fixedly connected to the upper surface of the bottom cover 14, a sensor 16 is fixedly installed inside the water guide cone 15, the sensor 16 is electrically connected to a small industrial computer 3, a drainage groove 17 is provided on the edge of the water guide cone 15, the inner wall of the drainage groove 17 away from the water guide cone 15 is provided with threads, and a plurality of drainage holes 18 arranged in a ring are provided at the bottom of the drainage groove 17.
[0036] The further advantages of adopting the above are: the monitoring component can be completely disassembled by rotating the bottom cover 14, which facilitates the maintenance and replacement of the sensor 16; and clean water can be discharged by the combined use of the water guide cone 15, the drainage channel 17 and the drainage hole 18.
[0037] When this utility model is in use, the duct fan 6 runs continuously, using mechanical energy to generate negative pressure, drawing air from the kitchen ceiling into the installation pipe 2, and then exhausting it to the outside through the ventilation pipe 7, thus achieving the function of ventilation. During this process, if there is any leaked natural gas, it will enter the protective cover 4 along with the air and be detected by the sensor 16. Finally, the industrial control computer will issue an alarm, preventing the sensor 16 from missing the alarm due to local accumulation of natural gas, thereby improving the alarm response speed. At the same time, the leaked natural gas will be discharged to the outside, reducing indoor safety hazards.
[0038] When cleaning is required, a water pump containing cleaning agent is used to pump cleaning water into a small nozzle 9, which is then sprayed out by a disc nozzle 10. The emulsification effect of the cleaning agent mixed in the cleaning water disperses the attached oil stains into fine oil droplets and washes them away with the water, thus achieving a self-cleaning effect. This avoids the oil stains covering the sensor 16, which would cause its response threshold to rise. Part of the cleaning water is discharged through the ventilation hole, and the other part of the cleaning water enters the drain trough 17 through the water guide cone 15 and is discharged through the drain hole 18, thus preventing water accumulation and bacterial growth.
[0039] 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 kitchen gas leak alarm device, comprising a mounting base (1), characterized in that, The upper surface of the mounting base (1) is fixedly connected to the mounting tube (2), the lower surface of the mounting base (1) is fixedly connected to the small industrial computer (3), the inner wall of the top of the mounting tube (2) is provided with an air-guiding component, the inner wall of the bottom of the mounting tube (2) is provided with a spray component, the bottom of the mounting tube (2) is fixedly connected to a protective cover (4), and the bottom of the protective cover (4) is detachably connected to a monitoring component.
2. The kitchen gas leak alarm device according to claim 1, characterized in that: The outer wall of the mounting tube (2) is provided with a through hole (5).
3. A kitchen gas leak alarm device according to claim 1, characterized in that: The air intake assembly includes a duct fan (6) and a ventilation pipe (7). The duct fan (6) is fixedly installed on the inner wall of the top of the installation pipe (2). The duct fan (6) passes through the installation pipe (2) and is electrically connected to a small industrial computer (3). The input end of the ventilation pipe (7) is fixedly connected to the top of the installation pipe (2). The output end of the ventilation pipe (7) is located outdoors.
4. A kitchen gas leak alarm device according to claim 1, characterized in that: The spray assembly includes a bracket (8), which is fixedly connected to the inner wall of the mounting pipe (2), and a small nozzle (9) is fixedly installed at the center of the bracket (8).
5. A kitchen gas leak alarm device according to claim 4, characterized in that: The bottom of the small nozzle (9) is provided with a disc-shaped nozzle (10), and the top of the small nozzle (9) is fixedly connected with a threaded tube (11).
6. A kitchen gas leak alarm device according to claim 1, characterized in that: The protective cover (4) has multiple ventilation holes (12) on its side wall, and a threaded ring (13) is fixedly connected to the bottom of the protective cover (4).
7. A kitchen gas leak alarm device according to claim 6, characterized in that: The monitoring component includes a bottom cover (14), on the upper surface of which a water guide cone (15) is fixedly connected. A sensor (16) is fixedly installed inside the water guide cone (15), and the sensor (16) is electrically connected to a small industrial computer (3).
8. A kitchen gas leak alarm device according to claim 7, characterized in that: The edge of the water guide cone (15) is provided with a drainage groove (17), and the inner wall of the drainage groove (17) away from the water guide cone (15) is provided with a thread matching the threaded ring (13). The bottom of the drainage groove (17) is provided with a plurality of drainage holes (18) arranged in a ring.