Odorant leakage alarm device

Abstract

The utility model relates to an odorant leakage alarm device. The device comprises an alarm host and a gas detector, a receiving Lora antenna, a control system module, a switch control mechanism, an audible and visual alarm switch, a gas cut-off switch, an exhaust switch and an audible and visual alarm are arranged in the alarm host; the control system module is electrically connected with the receiving Lora antenna and the switch control mechanism; an odorant sensor and a transmitting Lora antenna are arranged in the gas detector; the transmitting Lora antenna is in communication connection with the receiving Lora antenna; the audible and visual alarm is electrically connected with the audible and visual alarm switch, the gas cut-off switch is used for controlling on and off of gas, and the exhaust switch is used for controlling on and off of gas exhaust equipment; and a movement driving lever is arranged in the switch control mechanism, and the movement driving lever can collide with the sound-light alarm switch, the gas cut-off switch and the exhaust switch in the movement process. According to the scheme provided by the invention, the detection precision and the detection efficiency of gas detection can be improved, and the timeliness of taking measures for suppressing gas leakage is improved.

Description

Technical Field

[0001] The present application relates to the technical field of alarm devices, and in particular to an odorant leakage alarm device. Background Art

[0002] Most gases are colorless and odorless, which brings safety risks to the use of gas. Once the gas leaks, no one can feel it. Therefore, some substances with odor must be added to the gas so that it can be monitored in time when the gas leaks, so that measures can be taken to suppress the leak in time to avoid accidents.

[0003] The gas leak alarm is a very important gas safety device, which consists of a detector and an alarm control host to detect gas leaks. It can detect low-concentration combustible gas in the surrounding environment through a gas sensor, and produce a chemical reaction or electrochemical reaction on the sensor surface through a sampling circuit, causing a change in the sensor's electrophysical properties, thereby converting the gas signal into a voltage signal or a current signal and transmitting it to the alarm instrument. The instrument displays the percentage concentration value of the lower explosion limit of the combustible gas. When the combustible gas concentration exceeds the alarm setting value, an audible and visual alarm signal is generated to facilitate timely safety measures to avoid explosion accidents. However, the sensitivity of detecting the concentration of combustible gas is not high, and the detection accuracy of low-concentration combustible gas is not high, which can easily lead to missed detection and thus easily create safety hazards.

[0004] In view of this, there is an urgent need to propose an odorant leakage alarm device, which can realize gas leakage detection by remotely detecting the leakage concentration of the odorant, and automatically execute the operations of activating the sound and light alarm, shutting off the gas and starting the gas exhaust, thereby improving the detection accuracy and efficiency of gas detection and improving the timeliness of taking measures to suppress gas leakage. Utility Model Content

[0005] In order to overcome the problems existing in the related art, the present application provides an odorant leakage alarm device, which can realize gas leakage detection by remotely detecting the leakage concentration of the odorant, and automatically execute the operations of enabling the sound and light alarm, shutting off the gas and starting the gas exhaust, thereby improving the detection accuracy and detection efficiency of the gas detection and improving the timeliness of taking measures to suppress gas leakage.

[0006] The present application provides an odorant leakage alarm device, comprising:

[0007] Alarm host 1 and gas detector 2;

[0008] The alarm host 1 is provided with a receiving Lora antenna 11, a control system module 12, a switch control mechanism, an audible and visual alarm switch 13, a gas cut-off switch 14, an exhaust switch 15 and an audible and visual alarm 16;

[0009] The control system module 12 is electrically connected to the receiving Lora antenna 11 and the switch control mechanism;

[0010] The gas detector 2 is provided with an odorant sensor 21 and a transmitting Lora antenna 22;

[0011] The transmitting Lora antenna 22 is communicatively connected to the receiving Lora antenna 11, so that the odorant concentration value detected by the odorant sensor 21 can be transmitted to the control system module 12;

[0012] The sound and light alarm 16 is electrically connected to the sound and light alarm switch 13, the gas cut-off switch 14 is used to control the shut-off and conduction of the gas, and the exhaust switch 15 is used to control the start and stop of the gas exhaust equipment;

[0013] A motion lever 31 is provided in the switch control mechanism, and the control system module 12 can drive the motion lever 31 to move, so that the motion lever 31 can collide with the sound and light alarm switch 13, the gas cut-off switch 14 and the exhaust switch 15 during the movement.

[0014] In one embodiment, the switch control mechanism includes a motion lever 31, a lever limiting column 32, a drive motor 33, a threaded rod 34 and a fixed bearing 35;

[0015] The driving motor 33 is mounted on the top inner wall of the alarm host 1, the fixed bearing 35 is mounted on the bottom inner wall of the alarm host 1, one end of the threaded rod 34 is connected to the rotating shaft of the driving motor 33, and the other end of the threaded rod 34 is connected to the fixed bearing 35;

[0016] One end of the lever limiting column 32 is connected to the top inner wall, and the other end of the lever limiting column 32 is connected to the bottom inner wall, and the lever limiting column 32 is parallel to the threaded rod 34;

[0017] The motion lever 31 is provided with a threaded hole and a limiting hole. The lever limiting column 32 is clearance-matched with the limiting hole, and the threaded hole is thread-matched with the threaded rod 34, so that when the driving motor 33 drives the threaded rod 34 to rotate, the motion lever 31 can be driven to move along the threaded rod 34.

[0018] In one embodiment, the sound and light alarm switch 13 and the gas cut-off switch 14 are fixed in sequence on the inner wall of the alarm host 1 close to the moving lever 31 along the direction from the drive motor 33 to the fixed bearing 35; the exhaust switch 15 is fixed on the bottom inner wall, and the lever limit column 32 is located between the exhaust switch 15 and the fixed bearing 35; so that when the moving lever 31 moves in the direction from the drive motor 33 to the fixed bearing 35, it can collide with the sound and light alarm switch 13, the gas cut-off switch 14 and the exhaust switch 15 in sequence.

[0019] In one embodiment, a switch pressing portion 4 is provided at one end of the moving lever 31 close to the limiting hole, so that the switch pressing portion 4 can abut against the exhaust switch 15 when the moving lever 31 moves to the side of the fixed bearing 35 .

[0020] In one embodiment, a pressure sensor 41 is provided in the inner cavity of the switch pressing portion 4;

[0021] The pressure sensor 41 is electrically connected to the control system module 12 .

[0022] In one embodiment, the sound and light alarm 16 is installed on the outer side wall of the alarm host 1 .

[0023] In one embodiment, a display screen 121 is provided on the first surface of the alarm host 1;

[0024] A fixing bracket 17 is provided on the second surface of the alarm host 1 .

[0025] In one implementation, the display screen 121 is electrically connected to the control system module 12 .

[0026] In one embodiment, a host power line 18 and a host interface 19 are provided on the second surface;

[0027] The host power line 18 and the host interface 19 are electrically connected to the control system module 12 .

[0028] The technical solution provided by this application may have the following beneficial effects:

[0029] The odorant leakage alarm device provided by the present application comprises an alarm host and a gas detector, wherein the alarm host is provided with a receiving Lora antenna, a control system module, a switch control mechanism, an audible and visual alarm switch, a gas cut-off switch, an exhaust switch and an audible and visual alarm, the control system module is electrically connected to the receiving Lora antenna and the switch control mechanism, and the gas detector is provided with an odorant sensor and a transmitting Lora antenna, the transmitting Lora antenna and the receiving Lora antenna are communicatively connected, so that the odorant concentration value detected by the odorant sensor can be transmitted to the control system module, thereby realizing remote detection of the leakage concentration of the odorant to realize gas leakage detection. Further, the audible and visual alarm is electrically connected to the audible and visual alarm switch, the gas cut-off switch is used to control the shut-off and conduction of the gas, the exhaust switch is used to control the start and stop of the gas exhaust equipment, and a motion lever is provided in the switch control mechanism, the control system module can drive the motion lever to move, so that the motion lever can collide with the audible and visual alarm switch, the gas cut-off switch and the exhaust switch during the movement. Thus, while performing gas leakage detection, the automatic execution of the operations of enabling the audible and visual alarm, shutting off the gas and starting the gas exhaust is realized.

[0030] To sum up, the present application can realize gas leak detection by remotely detecting the leakage concentration of the odorizer, and automatically execute the operations of enabling the sound and light alarm, shutting off the gas and starting the gas exhaust, thereby improving the detection accuracy and efficiency of gas detection and improving the timeliness of taking measures to suppress gas leaks.

[0031] It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] The above and other objects, features and advantages of the present application will become more apparent through a more detailed description of exemplary embodiments of the present application in conjunction with the accompanying drawings, wherein the same reference numerals generally represent the same components in the exemplary embodiments of the present application.

[0033] Figure 1 It is a schematic diagram of the external first surface structure of the alarm host in the odorant leakage alarm device shown in the embodiment of the present application;

[0034] Figure 2 It is a schematic diagram of the external second surface structure of the alarm host in the odorant leakage alarm device shown in the embodiment of the present application;

[0035] Figure 3 It is a schematic diagram of the internal structure of the alarm host in the odorant leakage alarm device shown in the embodiment of the present application;

[0036] Figure 4 It is a schematic diagram of the structure of the gas detector in the odorant leakage alarm device shown in the embodiment of the present application. DETAILED DESCRIPTION

[0037] The preferred embodiments of the present application will be described in more detail below with reference to the accompanying drawings. Although the preferred embodiments of the present application are shown in the accompanying drawings, it should be understood that the present application can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided to make the present application more thorough and complete, and to fully convey the scope of the present application to those skilled in the art.

[0038] The terms used in this application are for the purpose of describing specific embodiments only and are not intended to limit this application. The singular forms of "a", "said" and "the" used in this application and the appended claims are also intended to include plural forms unless the context clearly indicates other meanings. It should also be understood that the term "and / or" used herein refers to and includes any or all possible combinations of one or more associated listed items.

[0039] It should be understood that although the terms "first", "second", "third", etc. may be used in this application to describe various information, this information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other. For example, without departing from the scope of this application, the first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0040] The gas leak alarm is a very important gas safety device, which consists of a detector and an alarm control host to detect gas leaks. It can detect low-concentration combustible gas in the surrounding environment through a gas sensor, and produce a chemical reaction or electrochemical reaction on the sensor surface through a sampling circuit, causing a change in the sensor's electrophysical properties, thereby converting the gas signal into a voltage signal or a current signal and transmitting it to the alarm instrument. The instrument displays the percentage concentration value of the lower explosion limit of the combustible gas. When the combustible gas concentration exceeds the alarm setting value, an audible and visual alarm signal is generated to facilitate timely safety measures to avoid explosion accidents. However, the sensitivity of detecting the concentration of combustible gas is not high, and the detection accuracy of low-concentration combustible gas is not high, which can easily lead to missed detection and thus easily create safety hazards.

[0041] In view of this, there is an urgent need to propose an odorant leakage alarm device, which can realize gas leakage detection by remotely detecting the leakage concentration of the odorant, and automatically execute the operations of activating the sound and light alarm, shutting off the gas and starting the gas exhaust, thereby improving the detection accuracy and efficiency of gas detection and improving the timeliness of taking measures to suppress gas leakage.

[0042] In response to the above-mentioned problems, an embodiment of the present application provides an odorant leakage alarm device, which can realize gas leakage detection by remotely detecting the leakage concentration of the odorant, and automatically execute the operations of enabling the sound and light alarm, shutting off the gas and starting the gas exhaust, thereby improving the detection accuracy and efficiency of the gas detection and improving the timeliness of taking measures to suppress gas leakage.

[0043] The technical solution of the embodiments of the present application is described in detail below with reference to the accompanying drawings.

[0044] Figure 1 : is a schematic diagram of the external first surface structure of the alarm host in the odorant leakage alarm device shown in the embodiment of the present application, Figure 3 Schematic diagram of the internal structure of the alarm host in the odorant leakage alarm device shown in the embodiment of the present application, Figure 4This is a schematic diagram of the structure of the gas detector in the odorant leakage alarm device shown in the embodiment of the present application. Figure 1 , Figure 3 and Figure 4 The odorant leakage alarm device shown in the embodiment of the present application may include:

[0045] Alarm host 1 and gas detector 2. The alarm host 1 is provided with a receiving Lora antenna 11, a control system module 12, a switch control mechanism, an audible and visual alarm switch 13, a gas cut-off switch 14, an exhaust switch 15 and an audible and visual alarm 16. The control system module 12 is electrically connected to the receiving Lora antenna 11 and the switch control mechanism, so that the control system module 12 can obtain the information received by the receiving Lora antenna 11 and can control the switch control mechanism. In addition, the gas detector 2 is provided with an odorant sensor 21 and a transmitting Lora antenna 22. The transmitting Lora antenna 22 and the receiving Lora antenna 11 are connected in communication, so that the odorant concentration value detected by the odorant sensor 21 can be transmitted to the control system module 12. In some application scenarios, the control system module 12 can set a concentration threshold value, so that when the odorant concentration value exceeds the concentration threshold value, it is determined to be a gas leak, and an alarm and leakage suppression measures need to be performed.

[0046] In the embodiment of the present application, the sound and light alarm 16 is electrically connected to the sound and light alarm switch 13, the gas cut-off switch 14 is used to control the shut-off and conduction of the gas, and the exhaust switch 15 is used to control the start and stop of the gas exhaust device. Furthermore, a motion lever 31 is provided in the switch control mechanism, and the control system module 12 can drive the motion lever 31 to move, so that the motion lever 31 can collide with the sound and light alarm switch 13, the gas cut-off switch 14 and the exhaust switch 15 during the movement. Thereby, the automatic execution of the operations of activating the sound and light alarm, shutting off the gas and starting the gas exhaust can be realized.

[0047] The odorant leakage alarm device of the present application comprises an alarm host and a gas detector, wherein the alarm host is provided with a receiving Lora antenna, a control system module, a switch control mechanism, an audible and visual alarm switch, a gas cut-off switch, an exhaust switch and an audible and visual alarm, the control system module is electrically connected to the receiving Lora antenna and the switch control mechanism, and the gas detector is provided with an odorant sensor and a transmitting Lora antenna, the transmitting Lora antenna and the receiving Lora antenna are communicatively connected, so that the odorant concentration value detected by the odorant sensor can be transmitted to the control system module, thereby realizing remote detection of the leakage concentration of the odorant to realize gas leakage detection. Further, the audible and visual alarm is electrically connected to the audible and visual alarm switch, the gas cut-off switch is used to control the shut-off and conduction of the gas, the exhaust switch is used to control the start and stop of the gas exhaust equipment, and a motion lever is provided in the switch control mechanism, the control system module can drive the motion lever to move, so that the motion lever can collide with the audible and visual alarm switch, the gas cut-off switch and the exhaust switch during the movement. Thus, while performing gas leakage detection, the automatic execution of the operations of enabling the audible and visual alarm, shutting off the gas and starting the gas exhaust is realized.

[0048] To sum up, the present application can realize gas leak detection by remotely detecting the leakage concentration of the odorizer, and automatically execute the operations of enabling the sound and light alarm, shutting off the gas and starting the gas exhaust, thereby improving the detection accuracy and efficiency of gas detection and improving the timeliness of taking measures to suppress gas leaks.

[0049] In some embodiments, the switch control mechanism can be further designed. Figure 3 The odorant leakage alarm device shown in the embodiment of the present application may include:

[0050] The switch control mechanism includes a motion lever 31, a lever limit column 32, a drive motor 33, a threaded rod 34 and a fixed bearing 35. The drive motor 33 is mounted on the top inner wall of the alarm host 1, the fixed bearing 35 is mounted on the bottom inner wall of the alarm host 1, one end of the threaded rod 34 is connected to the rotating shaft of the drive motor 33, and the other end of the threaded rod 34 is connected to the fixed bearing 35, so that the drive motor 33 can drive the threaded rod 34 to rotate smoothly on the fixed bearing 35.

[0051] Furthermore, one end of the lever limiting column 32 is connected to the top inner wall, and the other end of the lever limiting column 32 is connected to the bottom inner wall, and the lever limiting column 32 is parallel to the threaded rod 34. The motion lever 31 is provided with a threaded hole and a limiting hole, and the lever limiting column 32 is in clearance with the limiting hole, and the threaded hole is in threaded cooperation with the threaded rod 34, so that when the driving motor 33 drives the threaded rod 34 to rotate, the motion lever 31 can be driven to move along the threaded rod 34, and the lever limiting column 32 can limit the motion lever 31, so as to prevent the motion lever 31 from being offset during the motion process, thereby affecting the smoothness of the motion.

[0052] In the embodiment of the present application, the sound and light alarm switch 13 and the gas cut-off switch 14 can be fixed on the inner side wall of the alarm host 1 near the motion lever 31 in sequence along the direction from the drive motor 33 to the fixed bearing 35, and the exhaust switch 15 can be fixed on the bottom inner wall, so that the lever limit column 32 is located between the exhaust switch 15 and the fixed bearing 35. Therefore, when the motion lever 31 moves along the direction from the drive motor 33 to the fixed bearing 35, it can collide with the sound and light alarm switch 13, the gas cut-off switch 14 and the exhaust switch 15 in sequence. In particular, in order to achieve smooth control of the sound and light alarm switch 13 and the gas cut-off switch 14, the sound and light alarm switch 13 and the gas cut-off switch 14 can use a light touch rocker switch, so that the motion lever 31 can easily control the sound and light alarm switch 13 and the gas cut-off switch 14. And the exhaust switch 15 can use a push switch.

[0053] In the embodiment of the present application, a switch pressing portion 4 may be provided at one end of the motion lever 31 near the limit hole, so that when the motion lever 31 moves to the side of the fixed bearing 35, the switch pressing portion 4 can abut against the exhaust switch 15. Furthermore, a pressure sensor 41 is provided in the inner cavity of the switch pressing portion 4, and the pressure sensor 41 is electrically connected to the control system module 12. Thus, the pressure sensor 41 can obtain the pressure value between the switch pressing portion 4 and the exhaust switch 15, and when the pressure value exceeds the pressure threshold preset in the control system module 12, the drive motor 33 can be shut down by the control system module 12.

[0054] It is understandable that when the odorant concentration value is lower than the concentration threshold, the control system module 12 can also start the drive motor 33 to rotate in the opposite direction, so that the motion lever 31 is reset. During the resetting process, the motion lever 31 releases the exhaust switch 15, and can also dial back the sound and light alarm switch 13 and the gas cut-off switch 14, so as to realize the operation of shutting off the sound and light alarm, conducting the gas, and shutting off the gas exhaust.

[0055] Figure 2 This is a schematic diagram of the external second surface structure of the alarm host in the odorant leakage alarm device shown in the embodiment of the present application. Figure 2In some embodiments, the sound and light alarm 16 can be installed on the outer wall of the alarm host 1. A display screen 121 can be provided on the first surface of the alarm host 1, and the display screen 121 is electrically connected to the control system module 12, so that the user can view the odorant concentration value and pressure value and set the concentration threshold and pressure threshold. A fixed bracket 17 is provided on the second surface of the alarm host 1, so that the user can place it conveniently. Furthermore, a host power cord 18 and a host interface 19 are provided on the second surface, and the host power cord 18 and the host interface 19 are electrically connected to the control system module 12.

[0056] The scheme of the present application has been described in detail above with reference to the accompanying drawings. In the above embodiments, the description of each embodiment has its own emphasis. For the part that is not described in detail in a certain embodiment, refer to the relevant description of other embodiments. Those skilled in the art should also know that the actions and modules involved in the description are not necessarily required for the present application. In addition, it can be understood that the steps in the method of the embodiment of the present application can be adjusted in order, merged and deleted according to actual needs, and the modules in the device of the embodiment of the present application can be merged, divided and deleted according to actual needs.

[0057] The embodiments of the present application have been described above, and the above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and changes will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The selection of terms used herein is intended to best explain the principles of the embodiments, practical applications, or improvements to the technology in the market, or to enable other persons of ordinary skill in the art to understand the embodiments disclosed herein.

Claims

1. An odorant leakage alarm device, characterized in that: include: An alarm host (1) and a gas detector (2); The alarm host (1) is provided with a receiving Lora antenna (11), a control system module (12), a switch control mechanism, an audible and visual alarm switch (13), a gas cut-off switch (14), an exhaust switch (15) and an audible and visual alarm (16); The control system module (12) is electrically connected to the receiving Lora antenna (11) and the switch control mechanism; The gas detector (2) is provided with an odorant sensor (21) and a transmitting Lora antenna (22); The transmitting Lora antenna (22) and the receiving Lora antenna (11) are communicatively connected so that the odorant concentration value detected by the odorant sensor (21) can be transmitted to the control system module (12); The sound and light alarm (16) is electrically connected to the sound and light alarm switch (13); the gas cut-off switch (14) is used to control the shut-off and conduction of the gas; and the exhaust switch (15) is used to control the start and stop of the gas exhaust equipment; The switch control mechanism is provided with a motion lever (31), and the control system module (12) is capable of driving the motion lever (31) to move, so that the motion lever (31) can collide with the sound and light alarm switch (13), the gas cut-off switch (14) and the exhaust switch (15) during the movement.

2. The odorant leakage alarm device according to claim 1, characterized in that: The switch control mechanism comprises the motion lever (31), a lever limiting column (32), a drive motor (33), a threaded rod (34) and a fixed bearing (35); The drive motor (33) is mounted on the top inner wall of the alarm host (1), the fixed bearing (35) is mounted on the bottom inner wall of the alarm host (1), one end of the threaded rod (34) is connected to the rotating shaft of the drive motor (33), and the other end of the threaded rod (34) is connected to the fixed bearing (35); One end of the lever limiting column (32) is connected to the top inner wall, the other end of the lever limiting column (32) is connected to the bottom inner wall, and the lever limiting column (32) is parallel to the threaded rod (34); The motion lever (31) is provided with a threaded hole and a limiting hole, the lever limiting column (32) is clearance-matched with the limiting hole, and the threaded hole is thread-matched with the threaded rod (34), so that when the drive motor (33) drives the threaded rod (34) to rotate, the motion lever (31) can be driven to move along the threaded rod (34).

3. The odorant leakage alarm device according to claim 2, characterized in that: The sound and light alarm switch (13) and the gas cut-off switch (14) are fixed in sequence on the inner side wall of the alarm host (1) close to the moving lever (31) along the direction from the drive motor (33) to the fixed bearing (35); the exhaust switch (15) is fixed on the inner wall of the bottom, and the lever limit column (32) is located between the exhaust switch (15) and the fixed bearing (35); so that the moving lever (31) can collide with the sound and light alarm switch (13), the gas cut-off switch (14) and the exhaust switch (15) in sequence when moving in the direction from the drive motor (33) to the fixed bearing (35).

4. The odorant leakage alarm device according to claim 2, characterized in that: A switch pressing portion (4) is provided at one end of the motion lever (31) close to the limiting hole, so that when the motion lever (31) moves to the side of the fixed bearing (35), the switch pressing portion (4) can abut against the exhaust switch (15).

5. The odorant leakage alarm device according to claim 4, characterized in that: A pressure sensor (41) is provided in the inner cavity of the switch pressing portion (4); The pressure sensor (41) is electrically connected to the control system module (12).

6. The odorant leakage alarm device according to claim 1, characterized in that: The sound and light alarm (16) is installed on the outer side wall of the alarm host (1).

7. The odorant leakage alarm device according to claim 1, characterized in that: A display screen (121) is provided on a first surface of the alarm host (1); A fixing bracket (17) is provided on the second surface of the alarm host (1).

8. The odorant leakage alarm device according to claim 7, characterized in that: The display screen (121) is electrically connected to the control system module (12).

9. The odorant leakage alarm device according to claim 7, characterized in that: The second surface is provided with a host power line (18) and a host interface (19); The host power line (18) and the host interface (19) are electrically connected to the control system module (12).

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