Portable gas concentration detection device

Abstract

The utility model discloses a portable gas concentration detection device which solves the problems that in the prior art, original detection data are damaged when a secondary accident occurs, and dangerous chemical gas concentration information cannot be mastered when a gas detector carried by a rescue worker is damaged or lost. The device comprises a shell, a sampling assembly and a detection cavity which are respectively arranged in the shell, and a detection assembly for detecting a gas sample taken by the sampling assembly, a partition plate used for dividing the detection cavity into a detection chamber and an assembly chamber is arranged in the detection cavity, the sampling assembly is connected into the detection chamber, and the detection assembly is in wireless connection with a PC in a fire-fighting monitoring chamber. According to the utility model, the detection assembly is detachably installed in the assembly chamber, thereby preventing original detection data from being damaged when a secondary accident occurs in a leakage area; when the gas detector carried by a rescue worker is damaged or lost, the detection assembly is carried on the rescue worker so as to master the concentration information of the hazardous chemical gas in real time, and the rescue risk of firefighters is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of gas detection, in particular to a portable gas concentration detection device. Background Art

[0002] Dangerous chemical disaster accidents refer to accidents caused by the leakage of hazardous chemicals due to design defects, illegal operations and equipment failures during the production, transportation, storage and use of hazardous chemicals, resulting in serious consequences such as environmental pollution, combustion and explosion, casualties, etc. Due to the easy evaporation and low boiling point of hazardous chemicals, a large amount of toxic and harmful gases are present at the accident site, which diffuse or evaporate rapidly in the air. In addition, as the hazardous chemical gases diffuse or evaporate, there is a possibility of secondary accidents in the leakage area.

[0003] After a hazardous chemical disaster occurs, firefighters need to quickly enter the leakage area for emergency rescue. Before entering the accident area, firefighters need to conduct real-time detection of the concentration of hazardous gases in the leakage area to provide real and accurate original data for formulating on-site emergency rescue plans.

[0004] At present, it is a feasible method to use gas detection devices to detect the concentration and type of hazardous gas in the hazardous gas leakage area. However, when a secondary accident occurs, the probability of the gas detection device being damaged by the secondary accident is very high. At the same time, due to the complex on-site rescue environment, the gas detectors carried by firefighters are at risk of being lost or damaged. If the gas detectors carried by firefighters are damaged, there are great unknown risks for firefighters in the hazardous gas leakage area. Utility Model Content

[0005] The utility model provides a portable gas concentration detection device to at least solve some of the above technical problems.

[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0007] A portable gas concentration detection device comprises a shell, a sampling component and a detection chamber respectively arranged in the shell, and a detection component for detecting the gas sample taken by the sampling component; a partition plate for dividing the detection chamber into a detection chamber and an assembly chamber is arranged in the detection chamber, the detection component can be detachably installed in the assembly chamber and its detection end extends into the detection chamber through the partition plate, the sampling component is connected to the detection chamber, and the detection component is wirelessly connected to a PC in a fire monitoring room.

[0008] Furthermore, the detection component includes a detection box that can be detachably installed in the assembly room, a plurality of gas sensors arranged in the detection box for detecting gas concentration and type, and a single-chip microcomputer connected to the gas sensors; the detection end of the gas sensor extends out of the detection box and passes through the partition plate into the detection room, and the single-chip microcomputer is wirelessly connected to the PC.

[0009] Furthermore, a sealing hole adapted to the detection end of the gas sensor is provided on the partition plate, and the detection end of the gas sensor extends through the sealing hole into the detection chamber.

[0010] Furthermore, the sealing clearance hole includes a guide hole section opened on the partition plate and connected to the assembly chamber, and a sealing hole section opened on the partition plate and connected to the guide hole section and the detection chamber at both ends respectively; a sealing ring for sealing with the detection end of the gas sensor is provided in the sealing hole section, and the aperture of the guide hole section gradually increases from the sealing hole section to the assembly chamber.

[0011] Furthermore, the assembly chamber is an open assembly chamber structure, whose inner wall is formed by a partition plate, whose two inner side walls are curved structures, and whose inner top wall and inner bottom wall are flat structures. The outer wall of the detection box is adapted to the five inner walls of the assembly chamber and fits tightly to each other.

[0012] Furthermore, the detection component also includes a memory arranged in the detection box and connected to the single-chip microcomputer.

[0013] Furthermore, the detection component also includes a liquid crystal display screen arranged on the detection box and connected to the single-chip microcomputer, and an audible and visual alarm arranged on the detection box and connected to the single-chip microcomputer.

[0014] Furthermore, the detection component also includes a wireless transceiver A which is arranged in the detection box and connected to the single-chip computer, and a wireless transceiver B which is compatible with the wireless transceiver A is connected to the PC in the fire monitoring room.

[0015] Furthermore, the detection component also includes a backup lithium battery arranged in the detection box and connected to the single-chip microcomputer. A lithium battery connected to the single-chip microcomputer is arranged in the shell. The lithium battery and the single-chip microcomputer are connected via a quick-release connector arranged on the partition plate.

[0016] Furthermore, the sampling assembly includes a sampling tube arranged in the shell, and a sampling pump arranged on the sampling tube; one end of the sampling tube is connected to the outside, and the other end is connected to the detection chamber.

[0017] Compared with the prior art, the utility model has the following beneficial effects:

[0018] The utility model has a simple structure, a scientific and reasonable design, and is easy to use. The detection component of the utility model can be detachably installed in the assembly room, and the firefighters can directly extract the detection component from the shell to take it out of the leakage area, which can effectively avoid damage to the detection component and the original detection data stored therein when a secondary accident occurs in the leakage area; and when the rescue personnel find that the gas detector they carry with them is damaged or lost during the rescue process, they can also take the detection component out of the shell and carry it on their body to grasp the concentration information of the hazardous gas in real time, so as to judge the safety of the leakage area where they are located, and reduce the rescue risk of the firefighters. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the structure of the utility model.

[0020] Figure 2 It is a schematic diagram of the detection component of the utility model.

[0021] Figure 3 This is a schematic diagram of the outer wall of the detection component of the utility model.

[0022] Figure 4 It is a schematic diagram of the partition plate of the utility model.

[0023] Figure 5 This is a connection diagram of the electrical components of the utility model.

[0024] Among them, the names corresponding to the figure numbers are: 1-shell; 2-sampling component; 3-detection component; 4-lithium battery; 5-detection chamber; 6-partition plate; 7-sealed clearance hole; 11-sound and light alarm; 12-quick release connector; 13-PC; 14-wireless transceiver B; 20-exhaust port; 21-sampling tube; 22-sampling pump; 31-detection box; 32-gas sensor; 33-receiving groove; 34-spare lithium battery; 35-single-chip microcomputer; 36-wireless transceiver A; 37-shoulder strap; 38-LCD display; 39-sealing plate; 51-detection chamber; 52-assembly chamber; 71-guide hole section; 72-sealing hole section; 73-sealing ring; 310-memory. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0026] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore they cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0027] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; of course, it can also be a mechanical connection or an electrical connection; in addition, it can also be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0028] Example 1.

[0029] like Figure 1-5 As shown, the utility model provides a portable gas concentration detection device, including a shell 1, a sampling component 2 and a detection chamber 5 respectively arranged in the shell 1, and a detection component 3 for detecting the gas sample taken by the sampling component 2; a partition plate 6 for dividing the detection chamber 5 into a detection chamber 51 and an assembly chamber 52 is provided in the detection chamber 5, the detection component 3 is detachably installed in the assembly chamber 52 and its detection end passes through the partition plate 6 and extends into the detection chamber 51, the sampling component 2 is connected to the detection chamber 51, and the detection component 3 is wirelessly connected to the PC 13 in the fire monitoring room.

[0030] The detection component of the utility model can be detachably installed in the assembly room, and the firefighters can directly extract the detection component from the shell to take it out of the leakage area, which can effectively prevent the detection component and the original detection data stored therein from being damaged when a secondary accident occurs in the leakage area; and when the rescue personnel find that the gas detector they carry with them is damaged or lost during the rescue process, they can also take the detection component out of the shell and carry it on their bodies to obtain the concentration information of the hazardous gas in real time, thereby judging the safety of the leakage area where they are located, and reducing the rescue risk of the firefighters.

[0031] In order to ensure the safety of the equipment in the housing 1, the housing 1 is made of metal. In addition to the weight of the lithium battery 4 (in order to achieve a long standby time, the lithium battery 4 is relatively heavy) and the sampling pump, the gas concentration detection device is heavy as a whole. It is impossible for the rescue firefighters to take it away from the hazardous gas leakage area. In order to ensure the safety of the valuable equipment and original data inside, the firefighters can directly extract the detection components from the housing to take them out of the leakage area, and the remaining components will be collected after the danger in the leakage area is eliminated.

[0032] The sampling component 2 of the utility model draws the hazardous chemical gas sample into the detection chamber 51, and at the same time, the detection end of the detection component 3 arranged in the assembly chamber 52 extends into the detection chamber 51 through the partition plate 6 to detect the type and concentration of the hazardous chemical gas, and the detection component 3 transmits the detection result information of the hazardous chemical to the PC 13 in the fire monitoring room by wireless transmission, so as to facilitate the firefighters in the fire monitoring room to grasp the type and concentration of hazardous chemicals in the leakage area in real time.

[0033] Example 2.

[0034] like Figure 1-5 As shown, the utility model provides a portable gas concentration detection device, including a shell 1, a sampling component 2 and a detection chamber 5 respectively arranged in the shell 1, and a detection component 3 for detecting the gas sample taken by the sampling component 2; a partition plate 6 for dividing the detection chamber 5 into a detection chamber 51 and an assembly chamber 52 is provided in the detection chamber 5, the detection component 3 is detachably installed in the assembly chamber 52 and its detection end passes through the partition plate 6 and extends into the detection chamber 51, the sampling component 2 is connected to the detection chamber 51, and the detection component 3 is wirelessly connected to the PC 13 in the fire monitoring room.

[0035] The detection component 3 includes a detection box 31 that can be detachably installed in the assembly chamber 52, a plurality of gas sensors 32 arranged in the detection box 31 for detecting the gas concentration and type, and a single-chip microcomputer 35 connected to the gas sensor 32; the detection end of the gas sensor 32 extends out of the detection box 31 and passes through the partition plate 6 into the detection chamber 51, and the single-chip microcomputer 35 is wirelessly connected to the PC 13.

[0036] Based on Example 1, this Example 2 provides a more preferred structure of the detection component 3, specifically: the detection component 3 includes a detection box 31 that can be detachably installed in the assembly chamber 52, a plurality of gas sensors 32 arranged in the detection box 31 for detecting the gas concentration and type, and a single-chip microcomputer 35 connected to the gas sensor 32; the detection end of the gas sensor 32 extends out of the detection box 31 and passes through the partition plate 6 into the detection chamber 51, and the single-chip microcomputer 35 is wirelessly connected to the PC 13.

[0037] The detection box 31 of the utility model is detachably installed in the assembly chamber 52. The detachable manner can facilitate the separation of the detection box 31 from the assembly chamber 52. The specific number of gas sensors 32 in the utility model can be selected according to the type of detection gas. The gas sensor 32 is installed in the detection box 31, and the detection end of the gas sensor 32 extends out of the detection box 31 and passes through the partition plate 6 into the detection chamber 51, so as to detect the hazardous chemical gas in the detection chamber 51. The single-chip computer 35 is arranged in the detection box 31 and is connected to the gas sensor 32.

[0038] In the utility model, the gas sensor 32 detects the concentration and type of the hazardous chemical gas in the detection box 31, and transmits the detection result information of the hazardous chemical gas to the single-chip microcomputer 35 for storage, and the single-chip microcomputer 35 is wirelessly connected to the PC 13, so as to transmit the detection result information of the hazardous chemical gas to the PC 13, thereby providing real and accurate original data for formulating on-site emergency rescue plans.

[0039] Example 3.

[0040] like Figure 1-5 As shown, the utility model provides a portable gas concentration detection device, including a shell 1, a sampling component 2 and a detection chamber 5 respectively arranged in the shell 1, and a detection component 3 for detecting the gas sample taken by the sampling component 2; a partition plate 6 for dividing the detection chamber 5 into a detection chamber 51 and an assembly chamber 52 is provided in the detection chamber 5, the detection component 3 is detachably installed in the assembly chamber 52 and its detection end passes through the partition plate 6 and extends into the detection chamber 51, the sampling component 2 is connected to the detection chamber 51, and the detection component 3 is wirelessly connected to the PC 13 in the fire monitoring room.

[0041] The detection component 3 includes a detection box 31 that can be detachably installed in the assembly chamber 52, a plurality of gas sensors 32 arranged in the detection box 31 for detecting the gas concentration and type, and a single-chip microcomputer 35 connected to the gas sensor 32; the detection end of the gas sensor 32 extends out of the detection box 31 and passes through the partition plate 6 into the detection chamber 51, and the single-chip microcomputer 35 is wirelessly connected to the PC 13.

[0042] The partition plate 6 is provided with a sealing hole 7 adapted to the detection end of the gas sensor 32 , and the detection end of the gas sensor 32 extends through the sealing hole 7 into the detection chamber 51 .

[0043] Based on Example 2, this Example 3 provides a more preferred structure of the partition plate 6, specifically: a sealing clearance hole 7 adapted to the detection end of the gas sensor 32 is opened on the partition plate 6, and the detection end of the gas sensor 32 extends through the sealing clearance hole 7 into the detection chamber 51.

[0044] The sealed clearance hole 7 in the utility model can facilitate fixing and guiding the detection end of the gas sensor 32, thereby preventing the detection end of the gas sensor 32 from being damaged during installation.

[0045] In the present invention, the detection box 31 is provided with a receiving groove 33 , a shoulder strap 37 is provided in the receiving groove 33 , and a sealing plate 39 is provided in the receiving groove 33 for fixing the shoulder strap.

[0046] Example 4.

[0047] like Figure 1-5 As shown, the utility model provides a portable gas concentration detection device, including a shell 1, a sampling component 2 and a detection chamber 5 respectively arranged in the shell 1, and a detection component 3 for detecting the gas sample taken by the sampling component 2; a partition plate 6 for dividing the detection chamber 5 into a detection chamber 51 and an assembly chamber 52 is provided in the detection chamber 5, the detection component 3 is detachably installed in the assembly chamber 52 and its detection end passes through the partition plate 6 and extends into the detection chamber 51, the sampling component 2 is connected to the detection chamber 51, and the detection component 3 is wirelessly connected to the PC 13 in the fire monitoring room.

[0048] The detection component 3 includes a detection box 31 that can be detachably installed in the assembly chamber 52, a plurality of gas sensors 32 arranged in the detection box 31 for detecting the gas concentration and type, and a single-chip microcomputer 35 connected to the gas sensor 32; the detection end of the gas sensor 32 extends out of the detection box 31 and passes through the partition plate 6 into the detection chamber 51, and the single-chip microcomputer 35 is wirelessly connected to the PC 13.

[0049] The partition plate 6 is provided with a sealing hole 7 adapted to the detection end of the gas sensor 32 , and the detection end of the gas sensor 32 extends through the sealing hole 7 into the detection chamber 51 .

[0050] The sealing clearance hole 7 includes a guide hole section 71 opened on the partition plate 6 and connected to the assembly chamber 52, and a sealing hole section 72 opened on the partition plate 6, with two ends respectively connected to the guide hole section 71 and the detection chamber 51; a sealing ring 73 for sealing with the detection end of the gas sensor 32 is provided in the sealing hole section 72, and the aperture of the guide hole section 71 gradually increases from the sealing hole section 72 to the assembly chamber 52.

[0051] Based on Example 3, this Example 4 provides a more preferred structure of the sealing clearance hole 7, specifically: the sealing clearance hole 7 includes a guide hole section 71 opened on the partition plate 6 and connected to the assembly chamber 52, and a sealing hole section 72 opened on the partition plate 6, with two ends respectively connected to the guide hole section 71 and the detection chamber 51; a sealing ring 73 for sealing with the detection end of the gas sensor 32 is provided in the sealing hole section 72, and the aperture of the guide hole section 71 gradually increases from the sealing hole section 72 to the assembly chamber 52.

[0052] The guide hole section 71 of the utility model is arranged on the partition plate 6 and is connected with the assembly chamber 52. With such arrangement, the detection end of the gas sensor 32 can accurately enter the sealing hole section 72 when passing through the guide hole section 71, thereby avoiding damage to the detection end of the gas sensor 32 during installation. At the same time, the sealing hole section 72 is provided with a sealing ring 73, and the sealing ring 73 can seal the detection end of the gas sensor 32, thereby avoiding the hazardous chemical gas in the detection chamber 51 from entering the assembly chamber 52 and causing corrosion to the electrical components in the assembly chamber 52.

[0053] Example 5.

[0054] like Figure 1-5 As shown, the utility model provides a portable gas concentration detection device, including a shell 1, a sampling component 2 and a detection chamber 5 respectively arranged in the shell 1, and a detection component 3 for detecting the gas sample taken by the sampling component 2; a partition plate 6 for dividing the detection chamber 5 into a detection chamber 51 and an assembly chamber 52 is provided in the detection chamber 5, the detection component 3 is detachably installed in the assembly chamber 52 and its detection end passes through the partition plate 6 and extends into the detection chamber 51, the sampling component 2 is connected to the detection chamber 51, and the detection component 3 is wirelessly connected to the PC 13 in the fire monitoring room.

[0055] The detection component 3 includes a detection box 31 that can be detachably installed in the assembly chamber 52, a plurality of gas sensors 32 arranged in the detection box 31 for detecting the gas concentration and type, and a single-chip microcomputer 35 connected to the gas sensor 32; the detection end of the gas sensor 32 extends out of the detection box 31 and passes through the partition plate 6 into the detection chamber 51, and the single-chip microcomputer 35 is wirelessly connected to the PC 13.

[0056] The partition plate 6 is provided with a sealing hole 7 adapted to the detection end of the gas sensor 32 , and the detection end of the gas sensor 32 extends through the sealing hole 7 into the detection chamber 51 .

[0057] The sealing clearance hole 7 includes a guide hole section 71 opened on the partition plate 6 and connected to the assembly chamber 52, and a sealing hole section 72 opened on the partition plate 6, with two ends respectively connected to the guide hole section 71 and the detection chamber 51; a sealing ring 73 for sealing with the detection end of the gas sensor 32 is provided in the sealing hole section 72, and the aperture of the guide hole section 71 gradually increases from the sealing hole section 72 to the assembly chamber 52.

[0058] The assembly chamber 52 is an open assembly chamber structure, whose inner wall is formed by a partition plate 6, whose two inner side walls are curved structures, and whose inner top wall and inner bottom wall are flat structures. The outer wall of the detection box 31 is adapted to the five inner walls of the assembly chamber 52 and fits tightly to each other.

[0059] Based on Example 2, this Example 5 provides a more preferred structure for the assembly chamber 52, specifically: the assembly chamber 52 is an open assembly chamber structure, the inner wall of which is formed by a partition plate 6, the two inner side walls of which are curved structures, the inner top wall and the inner bottom wall of which are flat structures, and the outer wall of the detection box 31 is adapted to the five inner walls of the assembly chamber 52 and fits tightly to each other.

[0060] The assembly chamber 52 in the utility model is an open assembly chamber structure, which can facilitate the outer wall of the detection box 31 to cooperate with the five inner walls of the assembly chamber 52. At the same time, the inner wall of the open assembly chamber structure is formed by the partition plate 6, and its two inner side walls are curved structures, and its inner top wall and inner bottom wall are flat structures. The flat structure and the curved structure can cooperate to provide a guiding effect on the detection box 31 during installation, so as to prevent the detection box 31 from sliding during installation. The inner top wall and inner bottom wall of the open assembly chamber structure are flat structures, and the flat structure can facilitate the detection box 31 to cooperate.

[0061] Example 6.

[0062] like Figure 1-5 As shown, the utility model provides a portable gas concentration detection device, including a shell 1, a sampling component 2 and a detection chamber 5 respectively arranged in the shell 1, and a detection component 3 for detecting the gas sample taken by the sampling component 2; a partition plate 6 for dividing the detection chamber 5 into a detection chamber 51 and an assembly chamber 52 is provided in the detection chamber 5, the detection component 3 is detachably installed in the assembly chamber 52 and its detection end passes through the partition plate 6 and extends into the detection chamber 51, the sampling component 2 is connected to the detection chamber 51, and the detection component 3 is wirelessly connected to the PC 13 in the fire monitoring room.

[0063] The detection component 3 includes a detection box 31 that can be detachably installed in the assembly chamber 52, a plurality of gas sensors 32 arranged in the detection box 31 for detecting the gas concentration and type, and a single-chip microcomputer 35 connected to the gas sensor 32; the detection end of the gas sensor 32 extends out of the detection box 31 and passes through the partition plate 6 into the detection chamber 51, and the single-chip microcomputer 35 is wirelessly connected to the PC 13.

[0064] The detection component 3 further includes a memory 310 which is arranged in the detection box 31 and connected to the single chip computer 35 .

[0065] Based on Example 2, Example 6 provides a more preferred structure of the detection component 3, specifically: the detection component 3 also includes a memory 310 arranged in the detection box 31 and connected to the single-chip computer 35.

[0066] The memory 310 in the present invention can store the data transmitted by the single chip microcomputer 35. Specifically, the gas sensor 32 transmits the detection result information of the hazardous gas to the single chip microcomputer 35, and the single chip microcomputer 35 transmits the detection result information of the hazardous gas to the memory 310 for storage.

[0067] Example 7.

[0068] like Figure 1-5 As shown, the utility model provides a portable gas concentration detection device, including a shell 1, a sampling component 2 and a detection chamber 5 respectively arranged in the shell 1, and a detection component 3 for detecting the gas sample taken by the sampling component 2; a partition plate 6 for dividing the detection chamber 5 into a detection chamber 51 and an assembly chamber 52 is provided in the detection chamber 5, the detection component 3 is detachably installed in the assembly chamber 52 and its detection end passes through the partition plate 6 and extends into the detection chamber 51, the sampling component 2 is connected to the detection chamber 51, and the detection component 3 is wirelessly connected to the PC 13 in the fire monitoring room.

[0069] The detection component 3 includes a detection box 31 that can be detachably installed in the assembly chamber 52, a plurality of gas sensors 32 arranged in the detection box 31 for detecting the gas concentration and type, and a single-chip microcomputer 35 connected to the gas sensor 32; the detection end of the gas sensor 32 extends out of the detection box 31 and passes through the partition plate 6 into the detection chamber 51, and the single-chip microcomputer 35 is wirelessly connected to the PC 13.

[0070] The detection assembly 3 further includes a liquid crystal display screen 38 disposed on the detection box 31 and connected to the single-chip computer 35 , and an audible and visual alarm 11 disposed on the detection box 31 and connected to the single-chip computer 35 .

[0071] Based on Example 2, this Example 7 provides a more preferred structure of the detection component 3, specifically: the detection component 3 also includes a liquid crystal display 38 arranged on the detection box 31 and connected to the single-chip computer 35, and an audible and visual alarm 11 arranged on the detection box 31 and connected to the single-chip computer 35.

[0072] The detection box 31 of the utility model is provided with a liquid crystal display screen 38 connected to the single-chip computer 35. The liquid crystal display screen 38 can display the type and concentration of hazardous chemicals in real time. Specifically, the gas sensor 32 transmits the detection result information of the hazardous chemical gas to the single-chip computer 35, and the single-chip computer 35 transmits the detection result information of the hazardous chemical gas to the liquid crystal display screen 38 for display, so that firefighters can observe the concentration and type of hazardous chemical gas when using the detection device.

[0073] The detection box 31 of the utility model is provided with an audible and visual alarm 11 connected to the single-chip computer 35. The audible and visual alarm 11 enables firefighters to pay attention to the concentration changes of hazardous chemical gases in the leakage area when in use. Specifically, the gas sensor 32 transmits the detection result information of the hazardous chemical gas to the single-chip computer 35. The single-chip computer 35 compares the detection result information of the hazardous chemical gas with the preset value. If the detection result of the hazardous chemical gas is higher than the preset value, the single-chip computer 35 controls the audible and visual alarm 11 to sound an alarm to remind firefighters that the concentration of hazardous chemical gases in the leakage area is higher than the preset value.

[0074] Example 8.

[0075] like Figure 1-5 As shown, the utility model provides a portable gas concentration detection device, including a shell 1, a sampling component 2 and a detection chamber 5 respectively arranged in the shell 1, and a detection component 3 for detecting the gas sample taken by the sampling component 2; a partition plate 6 for dividing the detection chamber 5 into a detection chamber 51 and an assembly chamber 52 is provided in the detection chamber 5, the detection component 3 is detachably installed in the assembly chamber 52 and its detection end passes through the partition plate 6 and extends into the detection chamber 51, the sampling component 2 is connected to the detection chamber 51, and the detection component 3 is wirelessly connected to the PC 13 in the fire monitoring room.

[0076] The detection component 3 includes a detection box 31 that can be detachably installed in the assembly chamber 52, a plurality of gas sensors 32 arranged in the detection box 31 for detecting the gas concentration and type, and a single-chip microcomputer 35 connected to the gas sensor 32; the detection end of the gas sensor 32 extends out of the detection box 31 and passes through the partition plate 6 into the detection chamber 51, and the single-chip microcomputer 35 is wirelessly connected to the PC 13.

[0077] The detection component 3 also includes a wireless transceiver A36 which is arranged in the detection box 31 and connected to the single chip computer 35. The PC 13 in the fire monitoring room is connected to a wireless transceiver B14 which is compatible with the wireless transceiver A36.

[0078] Based on Example 2, this Example 8 provides a more preferred structure of the detection component 3, specifically: the detection component 3 also includes a wireless transceiver A36 arranged in the detection box 31 and connected to the single-chip computer 35, and the PC 13 in the fire monitoring room is connected to a wireless transceiver B14 compatible with the wireless transceiver A36.

[0079] In the utility model, the wireless transceiver A36 and the wireless transceiver B14 are wirelessly connected, which is convenient for transmitting the detection result information of the type and concentration of hazardous chemical gases. The wireless transceiver A36 is set on the detection box 31 and connected to the single-chip computer 35. The wireless transceiver B14 is set on the PC 13 in the fire monitoring room and is adapted to the wireless transceiver A36. Specifically, the gas sensor 32 transmits the detection result information of the hazardous chemical gas to the single-chip computer 35. The single-chip computer 35 wirelessly transmits the detection result information of the hazardous chemical gas to the wireless transceiver B14 through the wireless transceiver A36. The wireless transceiver B14 transmits the detection result information of the hazardous chemical gas to the PC in the fire monitoring room for display, thereby providing real and accurate original data for formulating on-site emergency rescue plans.

[0080] Example 9.

[0081] like Figure 1-5 As shown, the utility model provides a portable gas concentration detection device, including a shell 1, a sampling component 2 and a detection chamber 5 respectively arranged in the shell 1, and a detection component 3 for detecting the gas sample taken by the sampling component 2; a partition plate 6 for dividing the detection chamber 5 into a detection chamber 51 and an assembly chamber 52 is provided in the detection chamber 5, the detection component 3 is detachably installed in the assembly chamber 52 and its detection end passes through the partition plate 6 and extends into the detection chamber 51, the sampling component 2 is connected to the detection chamber 51, and the detection component 3 is wirelessly connected to the PC 13 in the fire monitoring room.

[0082] The detection component 3 includes a detection box 31 that can be detachably installed in the assembly chamber 52, a plurality of gas sensors 32 arranged in the detection box 31 for detecting the gas concentration and type, and a single-chip microcomputer 35 connected to the gas sensor 32; the detection end of the gas sensor 32 extends out of the detection box 31 and passes through the partition plate 6 into the detection chamber 51, and the single-chip microcomputer 35 is wirelessly connected to the PC 13.

[0083] The detection component 3 also includes a backup lithium battery 34 arranged in the detection box 31 and connected to the single-chip computer 35. A lithium battery 4 connected to the single-chip computer 35 is arranged in the shell 1. The lithium battery 4 and the single-chip computer 35 are connected via a quick-release connector 12 arranged on the partition plate 6.

[0084] Based on Example 2, this Example 9 provides a more preferred structure of the detection component 3, specifically: the detection component 3 also includes a backup lithium battery 34 arranged in the detection box 31 and connected to the single-chip computer 35, and a lithium battery 4 connected to the single-chip computer 35 is arranged in the shell 1, and the lithium battery 4 and the single-chip computer 35 are connected via a quick-release connector 12 arranged on the partition plate 6.

[0085] The backup lithium battery 34 of the utility model is arranged in the detection box 31 and connected to the single-chip computer 35. The backup lithium battery 34 in the utility model adopts a relatively light and small battery. Specifically, the backup lithium battery 34 and the single-chip computer 35 are electrically connected, so that the detection box 31 can be used normally after being separated from the assembly chamber 52, and a switch located on the outer wall of the detection box 31 is provided on the closed-loop circuit between the backup lithium battery 34 and the single-chip computer 35, and the switch can facilitate the activation of the backup lithium battery 34 for power supply.

[0086] In the utility model, the lithium battery 4 is arranged in the housing 1, and the lithium battery 4 is connected to the single-chip microcomputer 35 through the quick-release connector 12 arranged on the partition plate 6. Specifically, the quick-release connector 12 can facilitate the separation of the circuit between the lithium battery 4 and the single-chip microcomputer 35, so as to facilitate the separation of the detection box 31 from the assembly chamber 52. The lithium battery 4 is electrically connected to the sampling component 2 to provide power for the sampling component 2. Therefore, the lithium battery 4 is larger in size and heavier in weight, so as to provide a long standby time. The spare lithium battery 34 is small in size and light in weight, and is used for emergency use by firefighters.

[0087] Example 10.

[0088] like Figure 1-5 As shown, the utility model provides a portable gas concentration detection device, including a shell 1, a sampling component 2 and a detection chamber 5 respectively arranged in the shell 1, and a detection component 3 for detecting the gas sample taken by the sampling component 2; a partition plate 6 for dividing the detection chamber 5 into a detection chamber 51 and an assembly chamber 52 is provided in the detection chamber 5, the detection component 3 is detachably installed in the assembly chamber 52 and its detection end passes through the partition plate 6 and extends into the detection chamber 51, the sampling component 2 is connected to the detection chamber 51, and the detection component 3 is wirelessly connected to the PC 13 in the fire monitoring room.

[0089] The sampling assembly 2 includes a sampling tube 21 disposed in the housing 1 , and a sampling pump 22 disposed on the sampling tube 21 ; one end of the sampling tube 21 is connected to the outside, and the other end is connected to the detection chamber 51 .

[0090] Based on Example 1, this Example 10 provides a more preferred structure of the sampling component 2, specifically: the sampling component 2 includes a sampling tube 21 arranged in the shell 1, and a sampling pump 22 arranged on the sampling tube 21; one end of the sampling tube 21 is connected to the outside, and the other end is connected to the detection chamber 51.

[0091] In the utility model, one end of the sampling tube 21 is connected to the outside world and the other end is connected to the detection chamber 51, and the sampling pump 22 is arranged on the sampling tube 21. By starting the sampling pump 22, the sampling pump 22 draws the hazardous chemical gas into the detection chamber 51 through the sampling tube 21, and the detection component 3 in the detection chamber 51 detects the hazardous chemical gas. After the detection is completed, the hazardous chemical gas is discharged through the exhaust port 20 arranged on the shell 1, and the exhaust port 20 is connected to the detection chamber 51.

[0092] The working principle of this utility model:

[0093] When in use, the detection box 31 is installed in the shell 1, and then the shell 1 is installed on the unmanned vehicle. The unmanned vehicle transports the shell 1 to the area where the hazardous chemical gas leaks, and the sampling pump 22 is started. The sampling pump 22 draws the hazardous chemical gas into the detection chamber 51 through the sampling tube 21. The detection end of the gas sensor 32 in the detection box 31 detects the type and concentration of the hazardous chemicals in the detection chamber 51. During the process, the gas sensor 32 transmits the detection result information of the hazardous chemical gas to the single-chip microcomputer 35. On the one hand, the single-chip microcomputer 35 transmits the detection result information of the hazardous chemical gas to the memory 310 for storage. On the other hand, the single-chip microcomputer 35 transmits the detection result information of the hazardous chemical gas through the wireless transceiver A36 and the wireless transceiver B14 to the PC in the fire monitoring room for display, thereby providing real and accurate original data for formulating on-site emergency rescue plans.

[0094] The detection component of the utility model can be detachably installed in the assembly room, and the firefighters can directly extract the detection component from the shell to take it out of the leakage area, which can effectively avoid damage to the detection component and the original detection data stored therein when a secondary accident occurs in the leakage area.

[0095] When rescue workers find that the gas detector they carry with them is damaged or lost during the rescue process, they can also take the detection component out of the shell and carry it on their body to obtain real-time information on the concentration of hazardous gases, thereby judging the safety of the leakage area and reducing the rescue risks of firefighters.

[0096] The firefighters quickly take out the detection box 31 from the assembly room 51, activate the backup lithium battery 34 through the switch, and carry it on their backs through the shoulder strap. The gas sensor 32 in the detection box 31 detects the concentration and type of hazardous chemicals in the hazardous chemical leakage area, and transmits the detection result information of the hazardous chemical gas to the single-chip microcomputer 35. On the one hand, the single-chip microcomputer 35 transmits the detection result information of the hazardous chemical gas to the LCD screen 38 for display, and on the other hand, the single-chip microcomputer 35 compares the detection result information of the hazardous chemical gas with the preset value. If the detection result information of the hazardous chemical gas is higher than the preset value, the single-chip microcomputer 35 controls the sound and light alarm to sound an alarm to remind the firefighters that the current concentration of the hazardous chemical gas is higher than the preset value.

[0097] The single chip microcomputer used in the utility model preferably uses an STM32F7 single chip microcomputer. The lithium battery 4, sound and light alarm 11, quick release connector 12, PC 13, wireless transceiver B14, sampling pump 22, gas sensor 32, spare lithium battery 34, single chip microcomputer 35, wireless transceiver A36, liquid crystal display 38, memory 310, unmanned car, and switch used in the utility model are all prior art and can be directly purchased and used on the market, so the circuit, structure, and control principle of the lithium battery 4, sound and light alarm 11, quick release connector 12, PC 13, wireless transceiver B14, sampling pump 22, gas sensor 32, spare lithium battery 34, single chip microcomputer 35, wireless transceiver A36, liquid crystal display 38, memory 310, unmanned car, and switch are not described in detail here.

[0098] Finally, it should be noted that the above embodiments are only preferred embodiments of the present invention to illustrate the technical solution of the present invention, rather than limiting it, and certainly not limiting the patent scope of the present invention; although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention; that is to say, any changes or embellishments made to the main design concept and spirit of the present invention that have no substantive significance, and the technical problems they solve are still consistent with the present invention, should be included in the protection scope of the present invention; in addition, the direct or indirect application of the technical solution of the present invention in other related technical fields is also included in the patent protection scope of the present invention.

Claims

1. A portable gas concentration detection device, characterized in that: The invention comprises a shell (1), a sampling assembly (2) and a detection chamber (5) respectively arranged in the shell (1), and a detection assembly (3) for detecting the gas sample taken by the sampling assembly (2); a partition plate (6) for dividing the detection chamber (5) into a detection chamber (51) and an assembly chamber (52) is arranged in the detection chamber (5); the detection assembly (3) is detachably mounted in the assembly chamber (52) and its detection end passes through the partition plate (6) and extends into the detection chamber (51); the sampling assembly (2) is connected to the detection chamber (51); and the detection assembly (3) is wirelessly connected to a PC (13) in a fire monitoring room.

2. A portable gas concentration detection device according to claim 1, characterized in that: The detection assembly (3) comprises a detection box (31) detachably mounted in an assembly chamber (52), a plurality of gas sensors (32) arranged in the detection box (31) for detecting gas concentration and type, and a single-chip microcomputer (35) connected to the gas sensors (32); the detection end of the gas sensor (32) extends out of the detection box (31) and passes through a partition plate (6) into the detection chamber (51); the single-chip microcomputer (35) is wirelessly connected to a PC (13).

3. A portable gas concentration detection device according to claim 2, characterized in that: A sealing clearance hole (7) adapted to the detection end of the gas sensor (32) is provided on the partition plate (6), and the detection end of the gas sensor (32) extends through the sealing clearance hole (7) into the detection chamber (51).

4. A portable gas concentration detection device according to claim 3, characterized in that: The sealing clearance hole (7) comprises a guide hole section (71) provided on the partition plate (6) and connected to the assembly chamber (52), and a sealing hole section (72) provided on the partition plate (6) and connected to the guide hole section (71) and the detection chamber (51) at both ends thereof; a sealing ring (73) for sealing with the detection end of the gas sensor (32) is provided in the sealing hole section (72); and the aperture of the guide hole section (71) gradually increases in a direction from the sealing hole section (72) to the assembly chamber (52).

5. A portable gas concentration detection device according to claim 2, characterized in that: The assembly chamber (52) is an open assembly chamber structure, the inner wall of which is formed by a partition plate (6), the two inner side walls of which are curved structures, and the inner top wall and the inner bottom wall of which are flat structures. The outer wall of the detection box (31) is adapted to the five inner walls of the assembly chamber (52) and fits tightly to each other.

6. A portable gas concentration detection device according to claim 2, characterized in that: The detection component (3) also includes a memory (310) which is arranged in the detection box (31) and connected to the single-chip computer (35).

7. A portable gas concentration detection device according to claim 2, characterized in that: The detection assembly (3) also includes a liquid crystal display screen (38) arranged on the detection box (31) and connected to the single-chip computer (35), and an audible and visual alarm (11) arranged on the detection box (31) and connected to the single-chip computer (35).

8. A portable gas concentration detection device according to claim 2, characterized in that: The detection component (3) also includes a wireless transceiver A (36) which is arranged in the detection box (31) and connected to the single-chip computer (35); a wireless transceiver B (14) which is compatible with the wireless transceiver A (36) is connected to the PC (13) in the fire monitoring room.

9. A portable gas concentration detection device according to claim 2, characterized in that: The detection assembly (3) also includes a backup lithium battery (34) disposed in the detection box (31) and connected to the single-chip computer (35). A lithium battery (4) connected to the single-chip computer (35) is disposed in the housing (1). The lithium battery (4) and the single-chip computer (35) are connected via a quick-release connector (12) disposed on the partition plate (6).

10. A portable gas concentration detection device according to claim 1, characterized in that: The sampling assembly (2) comprises a sampling tube (21) arranged in the housing (1), and a sampling pump (22) arranged on the sampling tube (21); one end of the sampling tube (21) is connected to the outside, and the other end is connected to the detection chamber (51).

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