A remote alarm for a combustible gas probe control box
Patent Information
- Application Number
- CN202521987589.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-16
- Publication Date
- 2026-09-25
- Estimated Expiration
- 2035-09-16
AI Technical Summary
[0004]本实用新型提供一种用于可燃气体探头控制箱的远程报警器，以改善以下技术问题：在实际生产过程中天然气泄漏初期现场员工很难察觉到现场的可燃气体探头是否有数值显示及察觉声光报警
本装置通过插入式接头无缝接入现有控制箱，立即将其本地报警信号转化为可远程传输的数字信号，利用内置的FAS模块，报警信息可瞬间传输至消防控制中心、工厂中控室、以及相关安全负责人的手机或电脑终端，彻底解决了因厂区噪音、探头安装位置过高、值班人员离岗或疏忽导致的报警信息被遗漏的问题。另外，内置的声光报警器在接收到信号后会产生强烈的声光提示，进一步确保在泄漏初期就能引起现场人员的注意，通过步进电机精确驱动，经由异面齿轮、横向轴和传输带构成的传动系统，控制进气挡片的开合，绝大多数报警状态下，挡片保持关闭，使内部的半导体式气体传感器与外界环境隔离。这有效隔绝了高浓度的油污、灰尘、湿气和絮状物，防止传感器敏感元件被污染或腐蚀。
Smart Images
Figure CN224803498U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of alarm technology, and in particular to a remote alarm for a combustible gas probe control box. Background Technology
[0002] Combustible gases are widely used in industrial production, commercial operations, and residential buildings. If these gases leak and accumulate to a certain concentration, they can ignite upon contact with an open flame, potentially causing fires or even explosions, posing a significant threat to life and property.
[0003] Industrial users typically install combustible gas detectors at a high altitude. Due to factors such as the factory environment and noise, it is difficult for on-site employees to detect whether the detectors are displaying values or triggering audible and visual alarms in the early stages of a natural gas leak during actual production. Furthermore, on-duty personnel may fail to detect the leak in time due to personal reasons, potentially allowing it to escalate. During a leak, a large amount of dense smoke is generated indoors. Since the sensing components of traditional alarms are mostly in direct contact with the air, excessive smoke can cover the sensors, reducing their sensitivity and accuracy, leading to false alarms and even malfunction. Summary of the Invention
[0004] This invention provides a remote alarm for a combustible gas probe control box to address the following technical problems: In the initial stages of a natural gas leak during actual production, it is difficult for on-site personnel to detect whether the combustible gas probe is displaying a reading or to detect the audible and visual alarms. Furthermore, excessive smoke can cause the sensor to be covered with a certain amount of smoke and dust, leading to false alarms and rendering it unable to function properly.
[0005] This utility model provides a remote alarm for a combustible gas detector control box, employing the following technical solution: A remote alarm for a combustible gas detector control box includes a control housing, a plug-in connector, a vent hood, a semiconductor gas sensor, a flexible shielding assembly, a FAS module, and an audible and visual alarm. The plug-in connector is inserted into the outside of the control housing. The flexible shielding assembly is installed on the top of the control housing. The vent hood is fitted over the outside of the flexible shielding assembly. The semiconductor gas sensor is installed inside the vent hood. The control housing is installed on a wall surface. The input end of the FAS module is plugged into the interface end of the plug-in connector. The signal end of the audible and visual alarm is plugged into the port of the control housing. In one feasible technical solution of this utility model, the flexible shielding assembly includes a hollow cover, a stepper motor, a vertical shaft, a support shaft, a thrust bearing, a rotating rod, a limiting plate, and an air intake baffle. The hollow cover is fixedly connected to the top of the control housing. The stepper motor is mounted on the top of the hollow cover. The vertical shaft is fixedly connected to the outside of the output end of the stepper motor. The support shaft is fixedly connected to the top of the control housing. The thrust bearing is rotatably connected to the outside of the support shaft and the ventilated cover. The rotating rod is fixedly connected to the middle of the thrust bearing and is used to prevent the support shaft and the ventilated cover from rotating synchronously with the rotating rod. The limiting plate is mounted on the outside of one end of the rotating rod and is slidably connected to the inside of the ventilated cover. The air intake baffle is fixedly connected to the inside of the limiting plate.
[0006] In one feasible technical solution of this utility model, a non-uniform gear and a transverse shaft are provided on the outer side of the vertical shaft. The non-uniform gear is meshed with the outer side of the transverse shaft and the vertical shaft, and the transverse shaft is rotatably connected inside the hollow cover.
[0007] In one feasible technical solution of this utility model, a conveyor belt is tightly fitted to the outer side of the transverse shaft and the rotating rod.
[0008] In one feasible technical solution of this utility model, the interior of the ventilator is provided with an air groove that matches the size of the air inlet baffle.
[0009] In summary, this utility model has at least one of the following beneficial technical effects: This device seamlessly integrates with existing control boxes via a plug-in connector, instantly converting local alarm signals into remotely transmittable digital signals. Utilizing the built-in FAS module, alarm information can be instantly transmitted to the fire control center, factory control room, and the mobile phones or computer terminals of relevant safety personnel, completely resolving the problem of missed alarm information due to factory noise, excessively high sensor installation positions, or personnel absence or negligence. Furthermore, the built-in audible and visual alarm generates a strong audible and visual alert upon receiving a signal, further ensuring that on-site personnel are alerted in the early stages of a leak. Precisely driven by a stepper motor, a transmission system consisting of a faceted gear, a transverse shaft, and a conveyor belt controls the opening and closing of the air intake baffle. In most alarm states, the baffle remains closed, isolating the internal semiconductor gas sensor from the external environment. This effectively isolates high concentrations of oil, dust, moisture, and fibrous matter, preventing contamination or corrosion of the sensor's sensitive elements. Attached Figure Description
[0010] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0011] Figure 1 This is a schematic diagram of the structure of a remote alarm device for a combustible gas probe control box according to an embodiment of this utility model.
[0012] Figure 2 This is a cross-sectional view of the inside of the control housing in an embodiment of this utility model.
[0013] Figure 3 This is a schematic diagram of the internal structure of the hollow cover in an embodiment of this utility model.
[0014] Figure 4 This is a schematic diagram of the flexible shielding component in an embodiment of this utility model.
[0015] Figure 5 This is a cross-sectional view of the breathable cover in an embodiment of this utility model.
[0016] Explanation of reference numerals in the attached figures: 1. Control housing; 2. Insertion connector; 3. Vent cover; 4. Semiconductor gas sensor; 5. Flexible shielding components; 51. Hollow cover; 52. Stepper motor; 53. Vertical shaft; 54. Support shaft; 55. Thrust bearing; 56. Rotating rod; 57. Limiting plate; 58. Air intake baffle; 6. FAS module; 7. Audible and visual alarm; 8. Non-uniform gear; 9. Horizontal shaft; 10. Conveyor belt; 11. Air duct. Detailed Implementation
[0017] To make the technical problems, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.
[0018] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.
[0019] The following is in conjunction with the appendix Figures 1-5 The present invention will be described in further detail below.
[0020] This utility model discloses a remote alarm device for a combustible gas detector control box. (Refer to...) Figures 1 to 5 The remote alarm for the combustible gas probe control box includes a control housing 1, a plug-in connector 2, a vent 3, a semiconductor gas sensor 4, a flexible shielding assembly 5, a FAS module 6, and an audible and visual alarm 7. The plug-in connector 2 is plugged into the outside of the control housing 1. The flexible shielding assembly 5 is installed on the top of the control housing 1. The vent 3 is fitted onto the outside of the flexible shielding assembly 5. The semiconductor gas sensor 4 is installed inside the vent 3. The control housing 1 is installed on the wall surface. The input end of the FAS module 6 is plugged into the interface end of the plug-in connector 2. The signal end of the audible and visual alarm 7 is plugged into the port of the control housing 1. The control housing 1 serves as the core carrier and protection. The plug-in connector 2 is used to directly connect to the standard alarm output terminal of the control housing 1. The semiconductor gas sensor 4 detects the type and concentration of gas by measuring the changes in the electrical properties of semiconductor materials in the gas environment. The flexible shielding component 5 is used to keep closed in the non-alarm state, providing a physical barrier for the internal semiconductor gas sensor 4, effectively isolating it from everyday dust, oil, and lint in the air. The vent 3 allows air and gas to circulate freely while blocking larger particles from entering the interior, strengthening the protection of the flexible shielding component 5 and ensuring the stability of the detection environment of the semiconductor gas sensor 4.
[0021] The plug-in connector 2 is used to directly connect to the standard alarm output terminal of the existing combustible gas control box, enabling rapid installation and deployment without complex wiring, greatly simplifying the expansion of remote alarm functions. The FAS module 6 is installed inside the control housing 1. Its input terminal receives the original alarm signal from the plug-in connector 2, processes and identifies the signal, and the audible and visual alarm 7 is linked with the FAS module 6. When the alarm signal is confirmed, the FAS module 6 drives the audible and visual alarm 7 to work, providing a strong audiovisual alarm prompt on site through a high-decibel siren and flashing lights to warn surrounding personnel.
[0022] The flexible shielding assembly 5 includes a hollow cover 51, a stepper motor 52, a vertical shaft 53, a support shaft 54, a thrust bearing 55, a rotating rod 56, a limiting plate 57, and an air intake baffle 58. The hollow cover 51 is fixedly connected to the top of the control housing 1. The stepper motor 52 is mounted on the top of the hollow cover 51. The vertical shaft 53 is fixedly connected to the outside of the output end of the stepper motor 52. The support shaft 54 is fixedly connected to the top of the control housing 1. The thrust bearing 55 is rotatably connected to the outside of the support shaft 54 and the vent 3. The rotating rod 56 is fixedly connected to the middle of the thrust bearing 55 and is used to prevent the support shaft 54 and the vent 3 from rotating synchronously with the rotating rod 56. The limiting plate 57 is mounted on the outside of one end of the rotating rod 56 and is slidably connected to the inside of the vent 3. The air intake baffle 58 is fixedly connected to the inside of the limiting plate 57.
[0023] When the FAS module 6 receives an alarm signal from the main control box or requires active inspection, it triggers the stepper motor 52 to start. The rotating rod 56 rotates under the support of the thrust bearing 55, while being stabilized by the limit plate 57 to prevent overall shaking. The air intake baffle 58, fixedly connected inside the limit plate 57, rotates synchronously. The baffle rotates from the open state on both sides of the air groove 11 to the closed state, thereby closing the channel and protecting the internal components.
[0024] A non-uniform gear 8 and a transverse shaft 9 are also provided on the outer side of the vertical shaft 53. The non-uniform gear 8 is meshed with the transverse shaft 9 and the outer side of the vertical shaft 53, and the transverse shaft 9 is rotatably connected to the inside of the hollow cover 51.
[0025] The outer sides of the transverse shaft 9 and the rotating rod 56 are also closely fitted with the conveyor belt 10.
[0026] The interior of the ventilation cover 3 is also provided with an air groove 11 that matches the size of the air intake baffle 58.
[0027] The usage process of the remote alarm device for the combustible gas detector control box according to this embodiment of the utility model is as follows: Workers quickly connected the plug-in connector 2 by directly plugging it into the standard alarm output terminal of the control box and the corresponding interface of the control housing 1. When the combustible gas probe in the plant detects an excessive concentration, its control box outputs an alarm signal, which is then transmitted to the FAS module 6 inside the housing via a line. This module acts as the signal processing center, triggering the audible and visual alarm 7 to issue a strong audible and visual warning on-site; on the other hand, it remotely transmits the signal via a wireless network to the monitoring center or the mobile terminal of security personnel, achieving immediate remote alarm. In the alarm state, the air intake baffle 58 of the flexible shielding component 5 is in a closed state, tightly covering the air groove 11 inside the vent hood 3, forming a physical barrier for the internal semiconductor gas sensor 4, effectively isolating dust and oil in the dense smoke and protecting the internal components. When the FAS module 6 receives the alarm signal, it simultaneously sends a start command to the stepper motor 52. The motor drives the vertical shaft 53 to rotate, and transmits the power to the horizontal shaft 9 through a pair of non-uniform gears 8. The horizontal shaft 9 then drives the rotating rod 56 to rotate through the conveyor belt 10. The rotation of the rotating rod 56 causes the limiting plate 57 at its end and the air intake baffle 58 fixed thereon to slide along the air groove 11, completing the blocking. When the channel is opened, external air enters the air chamber through the air groove 11 of the vent 3. The semiconductor gas sensor 4 begins to contact the air sample, detects the gas concentration by measuring the change in the electrical properties of its sensitive material, and provides feedback on the situation on site.
[0028] The beneficial technical effects of the remote alarm device for the combustible gas probe control box according to this embodiment of the utility model are as follows: This device seamlessly connects to existing control boxes via a plug-in connector 2, immediately converting local alarm signals into remotely transmittable digital signals. Utilizing the built-in FAS module 6, alarm information can be instantly transmitted to the fire control center, factory control room, and the mobile phones or computer terminals of relevant safety personnel, completely resolving the problem of missed alarm information due to factory noise, excessively high sensor installation positions, or personnel leaving their posts or negligence. Furthermore, the built-in audible and visual alarm 7 generates a strong audible and visual alert upon receiving a signal, further ensuring that on-site personnel are alerted in the early stages of a leak. Precisely driven by a stepper motor 52, and via a transmission system consisting of a non-uniform gear 8, a transverse shaft 9, and a conveyor belt 10, the device controls the opening and closing of the air intake baffle 58. In most alarm states, the baffle remains closed, isolating the internal semiconductor gas sensor 4 from the external environment. This effectively isolates high concentrations of oil, dust, moisture, and lint, preventing the sensor's sensitive elements from being contaminated or corroded. After the alarm state ends, the stepper motor 52 receives a command to rotate in the opposite direction, driving the air intake baffle 58 to rotate in the opposite direction through the aforementioned transmission chain until the air slot 11 is fully opened, providing a clean protective environment for the sensor once again.
[0029] 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 and improvements 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 remote alarm device for a combustible gas detector control box, characterized in that, The device includes a control housing (1), a plug-in connector (2), a vent (3), a semiconductor gas sensor (4), a flexible shielding assembly (5), a FAS module (6), and an audible and visual alarm (7). The plug-in connector (2) is inserted into the outside of the control housing (1). The flexible shielding assembly (5) is installed on the top of the control housing (1). The vent (3) is fitted onto the outside of the flexible shielding assembly (5). The semiconductor gas sensor (4) is installed inside the vent (3). The control housing (1) is installed on the surface of a wall. The input end of the FAS module (6) is plugged into the interface end of the plug-in connector (2). The signal end of the audible and visual alarm (7) is plugged into the port of the control housing (1).
2. The remote alarm device for a combustible gas detector control box according to claim 1, characterized in that, The flexible shielding assembly (5) includes a hollow cover (51), a stepper motor (52), a vertical shaft (53), a support shaft (54), a thrust bearing (55), a rotating rod (56), a limiting plate (57), and an air intake baffle (58). The hollow cover (51) is fixedly connected to the top of the control housing (1). The stepper motor (52) is mounted on the top of the hollow cover (51). The vertical shaft (53) is fixedly connected to the outside of the output end of the stepper motor (52). The support shaft (54) is fixedly connected to the control housing. At the top of (1), the thrust bearing (55) is rotatably connected to the outside of the support shaft (54) and the vent (3), the rotating rod (56) is fixedly connected to the middle of the thrust bearing (55) and is used to prevent the support shaft (54) and the vent (3) from rotating synchronously with the rotating rod (56), the limiting plate (57) is installed on the outside of one end of the rotating rod (56) and is slidably connected to the inside of the vent (3), and the air intake baffle (58) is fixedly connected to the inside of the limiting plate (57).
3. The remote alarm device for a combustible gas detector control box according to claim 2, characterized in that, A non-uniform gear (8) and a transverse shaft (9) are provided on the outside of the vertical shaft (53). The non-uniform gear (8) is meshed with the transverse shaft (9) and the outside of the vertical shaft (53). The transverse shaft (9) is rotatably connected to the inside of the hollow cover (51).
4. The remote alarm device for a combustible gas detector control box according to claim 3, characterized in that, The outer sides of the transverse shaft (9) and the rotating rod (56) are closely fitted with a conveyor belt (10).
5. The remote alarm device for a combustible gas detector control box according to claim 2, characterized in that, The interior of the vent (3) is provided with an air groove (11) that is adapted to the size of the air inlet baffle (58).