A gas alarm controller

Abstract

The utility model relates to a gas alarm controller technical field, concretely relates to a kind of gas alarm controller, shell, and the detection box fixedly installed in the inside position of shell, the airflow groove is established in the inside two side positions of detection box, airflow groove keeps communication with outside air;Two reaction tanks are symmetrically arranged in the inside of airflow groove, and gas hole membrane is arranged between airflow groove and reaction tank, electrolyte is filled in reaction tank, electrode piece is inserted in reaction tank, and the detection plate is connected to the upper side position of electrode piece upper end extension, current detection piece is arranged on the detection plate;Through the moving plate of capsule elastic connection in the side position of detection plate, the lower end of moving plate is fixedly connected with electromagnet, when the two electromagnets on the same sliding trajectory mutually contact, alarm will be triggered. Through setting multiple electromagnets, the detection of current detection piece is detected to current, the numerical value of gas concentration is determined in different ways, to effectively improve the alarm accuracy of controller.

Description

Technical Field

[0001] This utility model relates to the field of gas alarm controller technology, and specifically to a gas alarm controller. Background Technology

[0002] A gas alarm controller, also known as a gas detector, is an instrument for detecting gas concentration. Common gas detection principles include electrochemical, catalytic combustion, and infrared. Its purpose is to detect the concentration of a certain gas, and when the concentration of the detected gas exceeds a predetermined standard, the gas alarm controller will issue an alarm to serve as a warning.

[0003] In practical applications, existing gas alarm controllers utilize electrochemical methods to detect gas density. The detection principle involves gas diffusing through the back of a porous membrane into the sensor's working electrode, where it is oxidized or reduced. This electrochemical reaction causes a change in the current flowing through the external circuitry, and the gas concentration can be determined by measuring the current. However, as the gas flows through the detection channel, it is affected by external environmental factors such as flow direction, temperature, and humidity, all of which influence the accuracy of the electrochemical gas alarm controller, introducing a degree of randomness. Therefore, we propose a new gas alarm controller. Utility Model Content

[0004] Technical problems to be solved

[0005] In view of the above-mentioned shortcomings of the existing technology, the present invention provides a gas alarm controller that can effectively solve the problem that when the gas flows through the detection channel, it is affected by external environmental factors, such as gas flow direction, temperature and humidity, which will affect the detection accuracy of the electrochemical gas alarm controller and have a certain degree of randomness.

[0006] Technical solution

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] This utility model provides a gas alarm controller, including a housing and a detection box fixedly installed inside the housing. Airflow grooves are provided on both sides inside the detection box, and the airflow grooves are kept in communication with the outside air.

[0009] Two reaction tanks are symmetrically arranged inside the airflow channel, and a porous membrane is provided between the airflow channel and the reaction tank. The reaction tank is filled with electrolyte, and an electrode is inserted in the reaction tank. The upper end of the electrode extends to the upper side of the reaction tank and is connected to a detection plate. A current detection device is provided on the detection plate.

[0010] Additionally, a movable plate is elastically connected to one side of the detection plate via the capsule. An electromagnet is fixedly connected to the lower end of the movable plate. An alarm is triggered when two electromagnets on the same sliding track come into contact with each other.

[0011] Furthermore, the outer walls of both sides of the detection box are fixedly installed on the inner wall of the housing by bending parts, and an air inlet pipe is fixedly installed on the bending parts; the outer end of the air inlet pipe extends through the housing to the outside and keeps in communication with the outside air, the inner end of the air inlet pipe is fixedly installed on the inner wall of the detection box and keeps in communication with the airflow channel, and a pump body is fixedly installed at the upper position of the detection box, the air inlet end of the pump body keeps in communication with the airflow channel, and the air outlet end of the pump body passes through the housing and keeps in communication with the outside air.

[0012] Furthermore, two guide grooves are symmetrically arranged in the center of the top surface of the detection box, and the electromagnets slide in the guide grooves at the top of the detection box; and a metal plate connected to the power supply is arranged in the center of the guide groove. When the electromagnets contact the metal plate, the two electromagnets in the same guide groove are electrically connected to the power supply and achieve magnetic attraction; a trigger switch is arranged at the end of the electromagnet. When the two electromagnets in the same guide groove contact each other, the trigger switch is in the open state, and the alarm set on the housing sounds an alarm.

[0013] Furthermore, a display is provided on the outer wall of the housing to display the current detected between the two electrodes during operation of the current detection device, as well as the gas concentration data corresponding to the current data.

[0014] Furthermore, the capsule is filled with gas that expands when heated. The detection plate is a metal plate on the side near the electrode and a heat-conducting plate on the side near the capsule. The metal plate acts as a conductor, electrically connecting the electrode and the current detection element. When the controller is running, the temperature of the detection plate rises, which causes the gas inside the capsule to expand, driving the moving plate and the electromagnet to slide along the guide groove.

[0015] Furthermore, it also includes a laser sensor installed on the inner wall of the guide groove, used to detect the distance the electromagnet slides on the guide groove.

[0016] Beneficial effects

[0017] The technical solution provided by this utility model, compared with the known public technology, has the following advantages:

[0018] Beneficial effects:

[0019] This invention uses multiple sets of electromagnets, combined with current detection devices, to determine the gas concentration value in different ways, thereby effectively improving the alarm accuracy of the controller. At the same time, with the electromagnets and metal plates, timely alarms can be triggered when the gas concentration reaches a predetermined standard. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art 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.

[0021] Figure 1 This is a schematic diagram of the overall structure of the controller of this utility model;

[0022] Figure 2 This is a schematic diagram of the overall structure of the detection box of this utility model;

[0023] Figure 3 This is a schematic diagram of the overall exploded structure of the detection box of this utility model;

[0024] Figure 4 This is a schematic cross-sectional view of the detection box of this utility model;

[0025] Figure 5 This is a schematic diagram of the exploded structure of the electrode component of this utility model.

[0026] The labels in the diagram represent:

[0027] 100. Shell;

[0028] 200. Detection box; 201. Airflow channel; 202. Reaction tank; 203. Guide channel; 210. Air inlet pipe; 220. Porous membrane; 230. Bending component; 240. Metal sheet;

[0029] 300. Pump body;

[0030] 400. Electrode; 410. Detection plate; 411. Current detection device; 420. Moving plate; 421. Electromagnet; 430. Encapsulation. Detailed Implementation

[0031] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0032] The present invention will be further described below with reference to the embodiments.

[0033] Example: A gas alarm controller includes a housing 100 and a detection box 200 fixedly installed inside the housing 100. Airflow grooves 201 are formed on both sides of the inside of the detection box 200, and the airflow grooves 201 are in communication with the outside air. Two reaction tanks 202 are symmetrically arranged inside the airflow grooves 201, and a porous membrane 220 is provided between the airflow grooves 201 and the reaction tanks 202. The reaction tanks 202 are filled with electrolyte, and electrode components 400 are inserted into the reaction tanks 202. The upper end of the electrode component 400 extends to the upper side of the reaction tank 202 and is connected to a detection plate 410. A current detection component 411 is provided on the detection plate 410. Specifically… In this application, during actual use, gas from the external environment enters the airflow channel 201. After entering the airflow channel 201, the gas diffuses through the back of the pore membrane 220 into the reaction tank 202 and reacts with the electrode 400. During this process, a current is generated at both ends of the electrode 400, and the magnitude of the current corresponds to the concentration of the gas to be detected. Furthermore, a display is provided on the outer wall of the housing 100 to display the current between the two electrode 400 detected by the current detection device 411 during operation, as well as the gas concentration data corresponding to the current data.

[0034] Regarding the alarm part, as mentioned above, the electrode 400 can generate current, which in turn detects the gas concentration. For a specific space area, the gas concentration to be detected is directly proportional to the magnitude of the current generated by the electrode 400. In this way, the corresponding gas concentration can be directly obtained by detecting the magnitude of the current. Real-time current data can be obtained through the current detection element 411 set on the detection board 410. When the current exceeds the predetermined standard, it is equivalent to closing the first switch in the alarm circuit, which can be understood as satisfying one of the factors that control the alarm to sound.

[0035] Furthermore, this application also includes a movable plate 420 elastically connected to one side of the detection plate 410 via the capsule 430. An electromagnet 421 is fixedly connected to the lower end of the movable plate 420. When two electromagnets 421 located on the same sliding trajectory come into contact with each other, an alarm will be triggered. The capsule 430 is filled with gas that expands when heated. The detection plate 410 has a metal plate on the side near the electrode 400 and a heat-conducting plate on the side near the capsule 430. The metal plate acts as a conductor, electrically connecting the electrode 400 and the current detection element 411. When the controller is running, the temperature of the detection plate 410 rises, which causes the gas inside the capsule 430 to expand, driving the movable plate 420 and the electromagnet 421 to slide along the guide groove 203.

[0036] Specifically, two guide grooves 203 are symmetrically arranged in the middle of the top surface of the detection box 200. The electromagnet 421 slides in cooperation with the guide groove 203 at the top of the detection box 200. A metal plate 240 connected to the power supply is arranged in the middle of the guide groove 203. When the electromagnet 421 contacts the metal plate 240, the two electromagnets 421 in the same guide groove 203 are electrically connected to the power supply and achieve magnetic adsorption. A trigger switch is arranged at the end of the electromagnet 421. When the two electromagnets 421 in the same guide groove 203 contact each other, the trigger switch is in the open state. At this time, it is equivalent to closing the second switch in the control alarm circuit. This can be understood as the second factor of controlling the alarm to sound. The first switch and the second switch are connected in series in the control alarm circuit. Only then will the alarm set on the housing 100 sound an alarm.

[0037] During actual use of the controller, the electrode 400 generates a corresponding current during the detection process. Utilizing the thermal effect of the current, the current generated in this process produces heat, which in turn causes the gas inside the capsule 430 to expand. As the capsule 430 extends, the movable plate 420, which is fixedly connected to the outer wall of the capsule 430, also moves synchronously. At this time, the electromagnet 421 slides within the guide groove 203. As the current increases, the corresponding heat difference is generated, causing the two electromagnets 421 located in the same guide groove 203 to move closer together. When both of them contact the metal sheet 240 laid on the inner wall of the guide groove 203, they will magnetically attract each other under energized conditions. At this time, the trigger switch set on the outer wall of the electromagnet 421 will be touched, thereby realizing an alarm. This can be combined with the aforementioned simple current detection, which triggers an alarm when the current exceeds a predetermined standard. Both can serve as necessary factors to simultaneously control the alarm of the controller in this application, improving the accuracy of the alarm.

[0038] In actual use, when the gas concentration exceeds the predetermined standard or approaches the critical point for a long time, the current generated at this time will be in a high current state for a certain period of time. The gas in the corresponding capsule 430 will remain in an expanded state, so that when the current slightly increases at the edge of the metal plate 240, the electromagnet 421 will immediately alarm after contacting the metal plate 240 in the next moment, which improves the alarm timeliness of the alarm controller in this application.

[0039] It should be noted that in this application, the outer walls of both sides of the detection box 200 are fixedly installed on the inner wall of the housing 100 by bending members 230, and an air inlet pipe 210 is fixedly installed on the bending members 230; the outer end of the air inlet pipe 210 extends through the housing 100 to the outside and is in communication with the outside air, the inner end of the air inlet pipe 210 is fixedly installed on the inner wall of the detection box 200 and is in communication with the airflow channel 201, and a pump body 300 is fixedly installed at the upper end of the detection box 200, the air inlet end of the pump body 300 is in communication with the airflow channel 201, and the air outlet end of the pump body 300 passes through the housing 100 and is in communication with the outside air. Specifically, in the alarm controller mentioned in this application, multiple reaction tanks 202 are provided. Each reaction tank 202 can detect the corresponding current magnitude and then match the corresponding gas concentration. In this way, self-testing can be performed inside the controller. This means that multiple sets of current data obtained at the same time can be compared to compensate for the randomness of gas concentration detection and ensure the accuracy of the alarm.

[0040] As one implementation method, in this application, when two electromagnets 421 come into contact, an alarm will be triggered. We refer to the two electromagnets 421 as a group. Two groups can be seen in the figure. Of course, multiple groups can also be set. As a triggering method for the alarm, it can be understood as a series switch. When one group of electromagnets 421 comes into contact with each other, the alarm set in the housing 100 will not sound an alarm because there may be randomness. An alarm will only sound when both groups of electromagnets 421 come into contact with each other, so as to ensure the accuracy of the alarm.

[0041] Specifically, this application also includes a laser sensor mounted on the inner wall of the guide groove 203 to detect the distance the electromagnet 421 slides on the guide groove 203. In actual operation, when the electromagnet 421 slides within the guide groove 203, it means the gas to be detected is present in the external environment. If the laser sensor detects a gradual increase in the gas concentration in the external environment within a unit of time (e.g., within 30 minutes), it can be understood that the concentration of the gas to be detected is on an upward trend. By plotting a two-dimensional graph of the gas concentration versus time, the trend of gas concentration change can be intuitively perceived. Correspondingly, an alert can be issued to the terminal, or displayed on the screen mounted on the housing 100, to promptly alert the terminal administrator for timely adjustments, especially when the gas to be detected is a harmful gas, thus reducing the occurrence of danger.

[0042] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of this utility model.

Claims

1. A gas alarm controller, characterized in that, include: The housing (100) and the detection box (200) fixedly installed inside the housing (100) have airflow slots (201) on both sides inside the detection box (200) and the airflow slots (201) are in communication with the outside air; Two reaction tanks (202) are symmetrically arranged inside the airflow tank (201), and a porous membrane (220) is provided between the airflow tank (201) and the reaction tank (202). The reaction tank (202) is filled with electrolyte, and an electrode (400) is inserted into the reaction tank (202). The upper end of the electrode (400) extends to the upper side of the reaction tank (202) and is connected to a detection plate (410). A current detection element (411) is provided on the detection plate (410). Additionally, a movable plate (420) is elastically connected to one side of the detection plate (410) via the capsule (430). An electromagnet (421) is fixedly connected to the lower end of the movable plate (420). An alarm is triggered when two electromagnets (421) located on the same sliding track come into contact with each other.

2. A gas alarm controller according to claim 1, characterized in that, The outer walls of the two sides of the test box (200) are fixedly installed on the inner wall of the housing (100) by bending parts (230), and an air inlet pipe (210) is fixedly installed on the bending parts (230). The outer end of the air inlet pipe (210) extends through the housing (100) to the outside and is in communication with the outside air. The inner end of the air inlet pipe (210) is fixedly installed on the inner wall of the detection box (200) and is in communication with the airflow channel (201). A pump body (300) is fixedly installed at the upper end of the detection box (200). The air inlet end of the pump body (300) is in communication with the airflow channel (201), and the air outlet end of the pump body (300) passes through the housing (100) and is in communication with the outside air.

3. A gas alarm controller according to claim 2, characterized in that, Two guide grooves (203) are symmetrically arranged in the middle of the top surface of the detection box (200), and the electromagnet (421) slides in cooperation with the guide groove (203) opened at the top of the detection box (200); Furthermore, a metal plate (240) that is connected to the power supply is provided in the middle of the guide groove (203). When the electromagnet (421) contacts the metal plate (240), the two electromagnets (421) located in the same guide groove (203) are electrically connected to the power supply and achieve magnetic adsorption. A trigger switch is provided at the end of the electromagnet (421). When two electromagnets (421) located in the same guide groove (203) come into contact, the trigger switch is in the open state, and the alarm set on the housing (100) sounds an alarm.

4. A gas alarm controller according to claim 3, characterized in that, The outer wall of the housing (100) is also provided with a display for displaying the current between the two electrodes (400) detected by the current detection device (411) during operation, as well as the gas concentration data corresponding to the current data.

5. A gas alarm controller according to claim 4, characterized in that, The capsule (430) is filled with gas that expands when heated. The detection plate (410) is a metal plate on the side near the electrode (400) and a heat-conducting plate on the side near the capsule (430). The metal plate acts as a conductor to electrically connect the electrode (400) and the current detection element (411). When the controller is running, the temperature of the detection plate (410) rises, which causes the gas inside the capsule (430) to expand, driving the moving plate (420) and the electromagnet (421) to slide along the guide groove (203).

6. A gas alarm controller according to claim 5, characterized in that, It also includes a laser sensor installed on the inner wall of the guide groove (203) for detecting the distance the electromagnet (421) slides on the guide groove (203).

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