Wearable detection assembly for harmful gas in closed environment

Abstract

The utility model discloses a wearable detection assembly for harmful gases in a closed environment. A threaded counter bore is formed in a base body; a detection counter bore and a first guide sinking groove which are communicated with each other are formed in the bottom surface of the threaded counter bore; a second guide sinking groove is formed in the side wall of the threaded counter bore; the first end of the first guide sinking groove is communicated with the second guide sinking groove, and the second end of the first guide sinking groove forms an air inlet in the base body; an assembling cavity is formed in the disassembling body, a communicating opening is formed in the side wall of the disassembling body, and an air outlet is formed in the top of the disassembling body; a gas sensor, a storage battery and an exhaust fan are arranged in the assembly cavity; and the dismounting main body is in threaded connection with the threaded counter bore and is provided with assembling positions for synchronously sealing and covering the detection counter bore, the first guide sinking groove and the second guide sinking groove. The gas sensor can detect harmful gas in real time and is suitable for detecting the harmful gas in a closed environment, the whole structure is convenient to unseal, and the interior of the base body and the gas sensor are easy to clean.

Description

Technical Field

[0001] The utility model relates to the technical field of harmful gas monitoring, in particular to a wearable closed environment harmful gas detection component. Background Art

[0002] In closed environments such as mines, sewers, and inside storage equipment, there are gases such as carbon monoxide, hydrogen sulfide, carbon dioxide, and methane, which can easily endanger the personal safety of workers entering the closed environment. Therefore, when people enter the closed environment, it is necessary to detect the above gases and discover and deal with them in a timely manner.

[0003] like Figure 1 As shown, a conventional harmful gas detection device in the prior art is shown, in which the gas sensor 4 is entirely covered inside the shell, and harmful gas detection is performed by guiding the external airflow into the shell 8. During use, the detection end of the gas sensor 4 is easily scaled due to adhesion of dust, water vapor, etc. in the air. In the above structural design, the gas sensor 4 is entirely covered inside the shell 8, and it is difficult to clean the detection end of the gas sensor 4, which affects the detection effect of harmful gases and also shortens the service life of the gas sensor 4.

[0004] like Figure 2 As shown, another channel-type harmful gas detection component in the prior art is used. By inserting the detection end of the gas sensor 4 into the air duct 9, the air flow passes through the air duct 9 to detect harmful gases. At the same time, the gas sensor 4 is pulled out of the air duct to facilitate cleaning of the detection end of the gas sensor 4. In the above structural design, the air duct 9 cannot be opened, and dust and the like are easily gathered inside the air duct. During long-term use, dust is easy to block the air duct. Utility Model Content

[0005] In view of the above-mentioned technical problems, the purpose of the utility model is to propose a wearable closed environment harmful gas detection component, which is easy to carry, can detect harmful gases in real time, is suitable for the harmful gas detection needs in a closed environment, and the overall structure is easy to disassemble, and the inside of the substrate and the gas sensor are easy to clean, effectively extending the service life and having strong practicality.

[0006] The technical solution of the utility model is achieved as follows: a wearable closed environment harmful gas detection component, including a base body and a disassembly body;

[0007] The base is provided with a threaded countersunk hole; the bottom surface of the threaded countersunk hole is provided with a detection countersunk hole and a first guide countersunk groove that are interlinked with each other; the side wall of the threaded countersunk hole is provided with a second guide countersunk groove; the first end of the first guide countersunk groove is connected to the second guide countersunk groove, and the second end forms an air inlet on the base;

[0008] An assembly cavity is provided inside the disassembly body, a communication port communicating with the assembly cavity is provided on the side wall of the disassembly body, and an exhaust port is provided on the top of the disassembly body; a gas sensor, a battery, and an exhaust fan are provided in the assembly cavity; the exhaust fan is arranged facing the exhaust port;

[0009] The disassembly body is threadedly connected to the threaded countersunk hole and has an assembly position for synchronously sealing the detection countersunk hole, the first guide countersunk groove, and the second guide countersunk groove;

[0010] In the assembly position, the detection end of the gas sensor extends into the detection counterbore; and in the assembly position, the communication port corresponds to the second guide counterbore.

[0011] Furthermore, a plurality of gas sensors are sealed and inserted into the disassembly body, and the detection ends of the gas sensors are exposed below the bottom of the disassembly body.

[0012] Furthermore, a plurality of the communication ports are arranged at intervals along the circumferential direction of the disassembly body.

[0013] Furthermore, a charging interface is provided on the side wall of the disassembly body; the charging interface is connected to the battery.

[0014] Furthermore, an auxiliary rotation structure is provided on the top surface of the disassembly body.

[0015] Furthermore, the detection assembly includes a headgear or a binding piece connected to the base.

[0016] Furthermore, the binding piece is a strap with Velcro.

[0017] Furthermore, the detection component includes a control circuit board; the gas sensor, control circuit board, battery, and exhaust fan are arranged in intervals from bottom to top.

[0018] Furthermore, an alarm device is provided in the assembly cavity; when the gas sensor detects harmful gas, the alarm device outputs an alarm signal.

[0019] Due to the application of the above technical solution, the utility model has the following advantages compared with the prior art:

[0020] 1. The utility model cooperates with the base and the disassembly body. When the disassembly body is assembled to the base, the disassembly body covers the first guide groove and the second guide groove, so that an airflow channel is formed between the first guide groove, the detection hole, and the second guide groove. The detection end of the gas sensor is synchronously inserted into the airflow channel to detect harmful gases. When the disassembly body is separated from the base, the first guide groove and the second guide groove can be opened, so that the internal dust and the like of the first guide groove and the second guide groove can be cleaned. The detection end of the gas sensor is located outside the disassembly body to facilitate cleaning of the detection end of the gas sensor. The combination of the above methods can detect harmful gases in real time, which is suitable for the detection needs of harmful gases in a closed environment. The overall structure is easy to disassemble, and it is easy to clean the inside of the base and the gas sensor, effectively extending the service life, and has strong practicality.

[0021] 2. The overall structure of the utility model is compact and easy to carry. It can be worn by installing a headgear or a binding piece on the base, and the disassembled main body can be disassembled and replaced as a whole, so as to extend the detection time of harmful gases and effectively meet the carrying requirements of working in a closed environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The technical solution of the utility model is further described below in conjunction with the accompanying drawings:

[0023] Figure 1 It is a structural schematic diagram of a harmful gas detection component in the prior art;

[0024] Figure 2 It is a structural schematic diagram of another harmful gas detection component in the prior art;

[0025] Figure 3 It is a three-dimensional structural schematic diagram of the overall structure of the utility model;

[0026] Figure 4 for Figure 3 A side view structural schematic diagram of

[0027] Figure 5 for Figure 4 Sectional view at AA in the figure;

[0028] Figure 6 for Figure 3 Exploded view of;

[0029] Figure 7 It is a schematic diagram of the three-dimensional structure of the base of the utility model;

[0030] Figure 8 It is a three-dimensional structural schematic diagram of the disassembly main body of the utility model;

[0031] Among them: 1. Base; 11. Threaded countersunk hole; 12. Detection countersunk hole; 13. First guide countersunk groove; 14. Second guide countersunk groove; 15. Air inlet; 2. Disassembly body; 21. Assembly cavity; 22. Connecting port; 23. Insertion hole; 24. Mounting hole; 3. Cover plate; 31. Exhaust port; 32. Exhaust fan; 33. Auxiliary rotating structure; 4. Gas sensor; 5. Control circuit board; 6. Battery; 7. Binding parts; 8. Shell; 9. Air duct. DETAILED DESCRIPTION

[0032] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the protection scope of the present invention.

[0033] like Figure 1-6 The present invention shows a wearable closed environment harmful gas detection component described in this embodiment, which is applied in a closed environment such as a mine environment, a sewer environment, and the inside of a storage device by wearing a wearable method to detect harmful gases. The detection component includes a base 1 and a disassembly body 2. Among them, a threaded countersunk hole 11 is processed on the top surface of the base 1. A detection countersunk hole 12 is processed at the center position of the bottom surface of the threaded countersunk hole 11. A first guide sink groove 13 is processed on the bottom surface of the threaded countersunk hole 11. The first guide sink groove 13 extends along a preset direction on the bottom surface of the threaded countersunk hole 11 so that the first guide sink groove 13 and the detection sink hole 12 are mutually connected. A second guide sink groove 14 is processed on the side wall of the threaded countersunk hole 11. Among them, the second guide sink groove 14 extends up and down, and its lower end is connected to the first end of the first guide sink groove 13. An air inlet 15 is processed on the side wall of the base 1 at the second end of the first guide sink groove 13. Through the air inlet 15, outside air can enter the first guide sink groove 13.

[0034] The aforementioned disassembly and assembly body is a cylindrical structure, and an assembly cavity 21 is machined inside the disassembly body 2. A communication port 22 connected to the assembly cavity 21 is machined on the side wall of the disassembly body 2. In this embodiment, the communication port 22 is arranged at intervals along the circumferential direction of the disassembly body 2. Several communication ports 22 are formed by several small holes. Through the small holes, dust and other particles in the air can be filtered. The top of the above-mentioned assembly cavity 21 is arranged open. A cover plate 3 is connected to the top surface of the disassembly body 2 by screws. The top opening of the assembly cavity 21 is covered by the cover plate 3. An exhaust port 31 connected to the assembly cavity 21 is machined and formed on the cover plate 3. In this embodiment, gas sensors 4, batteries 6, exhaust fans 32, control circuit boards 5 and other components are installed in the assembly cavity 21. The gas sensor 4, the control circuit board 5, the battery 6, and the exhaust fan 32 are arranged in the assembly cavity 21 from bottom to top. Among them, several through holes 23 are machined on the bottom surface of the assembly cavity 21. Several gas sensors 4 are inserted into the insertion hole 23 and are threadedly sealed with the insertion hole 23. The detection end of the gas sensor 4 is exposed below the bottom of the disassembly body 2. The control circuit board 5 is arranged above the gas sensor 4, and the cable of the gas sensor 4 is connected to the control circuit board 5 through a connector. The battery 6 is arranged above the control circuit board 5, and is connected to the control circuit board 5 through a connector. A mounting hole 24 is processed on the side wall of the disassembly body 2. The charging interface of the battery 6 is inserted into the mounting hole 24 and is locked to the disassembly body 2 by screws. The external power supply is plugged into the charging interface through the mounting hole 24 to charge the battery 6. The aforementioned exhaust fan 32 is assembled above the battery 6, which is fixed on the aforementioned cover plate 3, and the air outlet of the exhaust fan 32 is arranged facing the exhaust outlet 31.

[0035] In this embodiment, an external thread is processed on the outer circumferential surface of the above-mentioned disassembly body 2. The disassembly body 2 is inserted into the threaded countersunk hole 11 so as to be threadedly connected with the threaded countersunk hole 11. When the disassembly body 2 is rotated to a position where the bottom surface fits the bottom surface of the threaded countersunk hole 11, the bottom surface of the disassembly body 2 covers the mouth of the detection countersunk hole 12 and the notch of the first guide sink groove 13, and the outer circumferential surface of the disassembly body 2 covers the notch of the second guide sink groove 14, so that the disassembly body 2 has an assembly position of synchronously covering the detection countersunk hole 12, the first guide sink groove 13, and the second guide sink groove 14. In this assembly position, the detection ends of each of the aforementioned gas sensors 4 extend into the detection countersunk hole 12. And one of the aforementioned connecting ports 22 corresponds to and communicates with the second guide sink groove 14. Through the above-mentioned structural design, in this assembly position, the first guide sink groove 13 and the second guide sink groove 14 form an airflow channel. The assembly cavity 21 is connected to the airflow channel through the connecting port 22, and the airflow channel is connected to the outside through the air inlet 15. Under the action of the exhaust fan 32, the outside air flows into the first guide sink 13 through the air inlet 15, enters the second guide sink 14 after passing through the detection sink hole 12, enters the assembly cavity 21 through the connecting port 22, and is discharged from the exhaust port 31. In the above process, the detection end of the gas sensor 4 contacts the air flow so as to detect harmful gases.

[0036] In this embodiment, an alarm device may be arranged in the assembly cavity 21. The alarm device is connected to the control circuit board 5. When the gas sensor 4 detects harmful gas, the alarm device outputs an alarm signal, which may be a sound alarm or an audible and visual alarm.

[0037] In this embodiment, an auxiliary rotating structure 33 is processed on the top surface of the disassembly main body 2 so that the disassembly main body 2 can be easily rotated to save effort. The auxiliary rotating structure 33 is a raised structure and is arranged on the aforementioned cover plate 3. A head-mounted component or a binding component 7 is connected to the base 1 so that the base 1 can be fixed on the body of the operator by wearing it on the head or binding it, which is convenient for carrying. In this embodiment, the above-mentioned binding component 7 is a strap with Velcro, which is bonded by Velcro to facilitate the binding of the strap.

[0038] During specific use, the disassembly body 2 is screwed into the threaded countersunk hole 11 to be assembled on the base 1, and carried and used in a closed environment by wearing it on the head or by binding. When the disassembly body 2 is assembled on the base 1, the disassembly body 2 covers the first guide sink 13 and the second guide sink 14, so that an air flow channel is formed between the first guide sink 13, the detection sink hole 12, and the second guide sink 14. The detection end of the gas sensor 4 is synchronously inserted into the detection sink hole 12. The assembly cavity 21 is connected to the air flow channel through the connecting port 22. Under the exhaust action of the exhaust fan 32, the outside air flows into the first guide sink 13 through the air inlet 15, enters the second guide sink 14 after passing through the detection sink hole 12, and then enters the assembly cavity 21 through the connecting port 22, and then is discharged from the exhaust port 31. In the above process, the detection end of the gas sensor 4 contacts the air flow so that harmful gases can be detected.

[0039] During specific cleaning, the disassembly body 2 is separated from the base 1, and the first guide sink 13 and the second guide sink 14 are opened to clean the dust inside the first guide sink 13 and the second guide sink 14. The detection end of the gas sensor 4 is located outside the disassembly body 2, so as to facilitate the cleaning of the detection end of the gas sensor 4. The combination of the above methods can detect harmful gases in real time, which is suitable for the detection needs of harmful gases in a closed environment, and the overall structure is easy to disassemble, and it is easy to clean the inside of the base 1 and the gas sensor 4, effectively extending the service life, and has strong practicality.

[0040] Among them, by disassembling and replacing the disassembly main body 2 as a whole, the detection time of harmful gases can be extended, effectively meeting the carrying requirements of working in a closed environment.

[0041] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A wearable closed environment harmful gas detection assembly, comprising a base and a disassembly body; characterized in that: The base is provided with a threaded countersunk hole; the bottom surface of the threaded countersunk hole is provided with a detection countersunk hole and a first guide countersunk groove that are interlinked with each other; the side wall of the threaded countersunk hole is provided with a second guide countersunk groove; the first end of the first guide countersunk groove is connected to the second guide countersunk groove, and the second end forms an air inlet on the base; An assembly cavity is provided inside the disassembly body, a communication port communicating with the assembly cavity is provided on the side wall of the disassembly body, and an exhaust port is provided on the top of the disassembly body; a gas sensor, a battery, and an exhaust fan are provided in the assembly cavity; the exhaust fan is arranged facing the exhaust port; The disassembly body is threadedly connected to the threaded countersunk hole and has an assembly position for synchronously sealing the detection countersunk hole, the first guide countersunk groove, and the second guide countersunk groove; In the assembly position, the detection end of the gas sensor extends into the detection counterbore; and in the assembly position, the communication port corresponds to the second guide counterbore.

2. A wearable closed environment harmful gas detection assembly according to claim 1, characterized in that: A plurality of gas sensors are sealed and inserted into the dismantling main body, and the detection ends of the gas sensors are exposed below the bottom of the dismantling main body.

3. A wearable closed environment harmful gas detection assembly according to claim 1, characterized in that: A plurality of the communication ports are arranged at intervals along the circumferential direction of the disassembly body.

4. A wearable closed environment harmful gas detection assembly according to claim 1, characterized in that: A charging interface is provided on the side wall of the disassembly main body; the charging interface is connected to the battery.

5. A wearable closed environment harmful gas detection assembly according to claim 1, characterized in that: An auxiliary rotation structure is arranged on the top surface of the disassembly main body.

6. A wearable closed environment harmful gas detection assembly according to claim 1, characterized in that: The detection assembly includes a head-mounted component or a binding component connected to a base body.

7. A wearable closed environment harmful gas detection assembly according to claim 6, characterized in that: The binding piece is a binding strap with Velcro.

8. A wearable closed environment harmful gas detection assembly according to claim 1, characterized in that: The detection component includes a control circuit board; the gas sensor, the control circuit board, the battery, and the exhaust fan are arranged in intervals from bottom to top.

9. A wearable closed environment harmful gas detection assembly according to claim 1, characterized in that: An alarm device is arranged in the assembly cavity; when the gas sensor detects harmful gas, the alarm device outputs an alarm signal.

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