A multi-mode fusion portable intelligent gas detector and method

Abstract

The application discloses a multi-mode fusion portable intelligent gas detector and method, and relates to the technical field of gas detection. The application comprises a detector main body, further comprises: an elastic air inlet pipe arranged in the detector main body; a gas collecting unit comprising an adjusting assembly and an air suction assembly, wherein the adjusting assembly is used for adjusting the end position of the elastic air inlet pipe to realize multi-point targeted air suction, and the air suction assembly is used for sucking the gas into the detector main body through the elastic air inlet pipe; and a detection unit arranged in the detector main body and comprising a partition detection assembly and a gas guiding assembly. The application has the advantages that the air suction position of the detector can be flexibly adjusted, multi-position and multi-environment air suction detection can be realized, the detection range is wider, the synchronous detection of multiple gas components in the air can be completed through single air suction, the multiple gas detection sensors do not affect each other during detection, and the detection precision and the detection efficiency are both higher.

Description

Technical Field

[0001] This invention relates to the technical field of gas detection, and in particular to a portable intelligent gas detector and method with multi-mode fusion. Background Technology

[0002] A gas detector is an instrument used to detect the concentration of various gases in the air. It is mainly used to determine whether the air quality meets the standards. Gas detectors are widely used in industries, mines, environmental monitoring, laboratories, and fire protection.

[0003] Existing gas detectors employ various methods to detect gases, such as a portable gas detector with publication number CN115078649A, which relates to the field of detection instrument technology. This portable gas detector includes a housing, a detection component, and a carrying component. The housing itself forms a accommodating chamber; the detection component includes a detection chamber and a sensing unit disposed within the detection chamber. The detection chamber is defined by an inner detection wall disposed within the accommodating chamber, and has an inlet and an outlet, with a one-way valve at the outlet; the carrying component includes a fixed platform and a collar detachably connected to the fixed platform, the fixed platform being fixedly connected to the housing or integrally formed.

[0004] When using existing gas detectors, operators usually need to hold the detector and place it in the detection area to inhale. This method of inhalation is limited by the length of the operator's arm, which limits the movement of the detector, reduces the detection area, and makes it impossible to achieve simultaneous detection of multiple modes.

[0005] For example, in the aforementioned prior art, the device requires the operator to place the detector in the target area for inhalation and detection, which is cumbersome and has a limited detection area. In addition, the detection sensors in the device are all located in the same detection chamber. In order to avoid mutual interference between multiple detection sensors, it can only detect one gas each time it is inhaled, and cannot simultaneously and accurately detect multiple gases, resulting in low detection efficiency and certain limitations.

[0006] Therefore, there is an urgent need to design a portable intelligent gas detector and method that integrates multiple modes to solve the above problems. Summary of the Invention

[0007] To address the shortcomings of existing technologies, this invention provides a portable intelligent gas detector and method with multi-mode fusion, solving the problems mentioned in the background section.

[0008] To achieve the above objectives, the present invention provides the following technical solution: a multi-mode fusion portable intelligent gas detector, comprising a detector body, and further comprising:

[0009] The flexible air inlet tube is located on the outside of the detector body and is used to absorb the gas to be detected from the outside.

[0010] The gas collection unit is located inside the main body of the detector and includes an adjustment component and a suction component. The adjustment component is used to adjust the end position of the elastic air inlet tube to achieve multi-point targeted air intake, and the suction component is used to draw gas into the main body of the detector through the elastic air inlet tube.

[0011] The detection unit, located within the main body of the detector, includes a zone detection component and a gas guiding component. The zone detection component is equipped with multiple gas detection sensors. The zone detection component is used to divide the inhaled gas into zones and perform multi-component detection on the zoned gas through multiple gas detection sensors. The gas guiding component is used to introduce and completely remove the gas within the zone detection component.

[0012] Preferably, the upper part of the detector body is provided with a control panel, which controls the opening and closing and operation status of the gas collection unit and the detection unit to realize automatic and intelligent gas detection.

[0013] A detection handle is fixedly installed on the side of the main body of the detector, which enables the portable movement of the main body of the detector.

[0014] Preferably, the air intake assembly includes a servo motor fixedly installed inside the main body of the detector, a drive roller fixedly installed on the drive end of the servo motor, an air guide box fixedly installed on the main body of the detector, and the air guide box is connected to the elastic air inlet pipe, and an air blowing mechanism is installed between the air guide box and the drive roller.

[0015] Preferably, the air blowing mechanism includes a one-way bearing rod disposed on the drive roller, and the one-way bearing rod rotates synchronously in the forward direction under the drive of the drive roller. A reciprocating screw is fixedly installed on the one-way bearing rod, and a ball nut disc is fitted on the reciprocating screw. A reciprocating suction plate is slidably installed in the air guide box, and a linkage rod is fixedly installed between the reciprocating suction plate and the ball nut disc.

[0016] Preferably, the adjustment assembly includes a movable ring and a positioning ring fixedly installed at both ends of the elastic intake pipe, and a push spring rod is fixedly installed between the movable ring and the positioning ring, and the push spring rod is in a compressed state in the initial state.

[0017] A mounting frame is fixedly installed on the positioning ring, and a traction roller is rotatably installed on the mounting frame. A traction rope is fixedly connected between the traction roller and the moving ring. A telescopic rocker arm is rotatably installed on the traction roller. A positioning pin is fixedly installed on the telescopic rocker arm, and multiple positioning holes that cooperate with the positioning pin are provided on the mounting frame.

[0018] Preferably, the partition detection component includes multiple detection boxes fixedly installed on the air guide box, each detection box is fixedly connected to a gas distribution square tube, and each gas distribution square tube is slidably connected to a reciprocating air intake plate. The elastic air intake pipe and the multiple gas distribution square tubes are each provided with a control valve, and each gas distribution square tube is provided with a debris removal mechanism.

[0019] Preferably, the impurity removal mechanism includes a filter screen plate fixedly installed inside the gas distribution square tube for filtering impurities in the gas, a ash removal pipe fixedly installed at the lower part of the gas distribution square tube, and an impurity removal pipe for removing impurities is provided between the gas guide box and the main body of the detector.

[0020] Preferably, the gas guiding assembly includes a linkage plate fixedly mounted on a ball nut disc, a linkage push plate slidably mounted in each detection box, and a gas detection sensor fixedly mounted on the linkage push plate. A reset spring rod is fixedly mounted between the linkage push plate and the detection box, and a linkage pull rope is fixedly connected between the linkage plate and the linkage push plate. A guide wheel cooperating with the linkage pull rope is provided at the lower part of the detection box, and an exhaust mechanism for venting gas is jointly mounted on multiple detection boxes.

[0021] Preferably, the exhaust mechanism includes an air intake box fixedly installed inside the main body of the detector, and the air intake box is rotatably connected to the drive roller. The drive roller is provided with a one-way bearing rod two, and the one-way bearing rod two rotates synchronously in the opposite direction under the drive of the reverse rotation of the drive roller. An air intake impeller is fixedly installed on the one-way bearing rod two, and the air intake impeller is located inside the air intake box.

[0022] The suction box is fixedly connected to the main suction pipe via a return suction pipe, and each detection box is fixedly connected to the main suction pipe for sucking out the gas in the detection box. The suction box is fixedly connected to the main body of the detector via an exhaust pipe for exhausting the gas.

[0023] A multi-mode fusion portable intelligent gas detection method, used in the aforementioned multi-mode fusion portable intelligent gas detector, includes the following steps:

[0024] S1. When performing gas detection, adjust the length of the flexible air inlet tube by adjusting the adjustment component, and extend the end of the flexible air inlet tube into the area to be detected.

[0025] S2. The intake assembly is activated to draw gas into the main body of the detector through the elastic intake tube;

[0026] S3. With the cooperation of the gas guiding component, the inhaled gas is divided into zones for storage by the zone detection component, and multiple corresponding gas detection sensors are activated simultaneously to detect the composition of the gas in each zone in different modes.

[0027] S4. After the test is completed, the gas in each zone is completely purged through the gas guide assembly, and the gas test of the next zone is carried out after the exhaust is completed.

[0028] This invention provides a portable intelligent gas detector and method with multi-mode fusion.

[0029] It has the following beneficial effects:

[0030] 1. When this gas detector detects gas, it can flexibly change the position of the end of the elastic air inlet tube by pushing the spring rod to lift and pulling the traction rope, so that it can be moved to a more distant or complex area for rapid air intake, resulting in a wider air intake detection range and better detection effect.

[0031] 2. When this gas detector detects gas, it can compress and evenly divide the intake air into zones, storing the air in proportional zones into different detection boxes. The air composition in each detection box after partitioning is consistent and will not affect the detection results.

[0032] 3. When detecting gases, this gas detector can use multiple different gas detection sensors after partitioning to perform targeted detection of gases in different detection boxes. It can effectively detect the content and concentration of different components in the air. A single intake can complete the simultaneous detection of multiple gases in the air, resulting in higher detection efficiency.

[0033] 4. When detecting gases, this gas detector can rapidly pressurize air into the gas detection sensor during detection. Compared with the original gas detection sensor that absorbs gas from the surrounding environment through natural diffusion, it has a higher intake rate and thus effectively improves the gas detection efficiency.

[0034] 5. When performing gas detection, this gas detector can completely remove the gas from the detection box after the detection is completed, thereby avoiding the residual air in the detection box from affecting subsequent air detection and further improving the accuracy of the detection results.

[0035] In summary, this invention can flexibly adjust the inhalation position of the detector to achieve inhalation detection in multiple positions and environments, with a wider detection range. Moreover, it can complete the simultaneous detection of multiple gas components in the air with a single inhalation. During detection, multiple gas detection sensors do not interfere with each other, resulting in higher detection accuracy and efficiency.

[0036] Other features and advantages of the invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of the invention may be realized and obtained by means of the structures particularly pointed out in the written description and the accompanying drawings. Attached Figure Description

[0037] The specific embodiments of the present invention will be further described in detail below with reference to the accompanying drawings, wherein:

[0038] Figure 1 This is a schematic diagram of the structure of a portable intelligent gas detector with multi-mode fusion proposed in this invention;

[0039] Figure 2 for Figure 1 A schematic diagram of the structure after rotation at a certain angle;

[0040] Figure 3 for Figure 1 A schematic diagram of the internal structure of the main body of the detector;

[0041] Figure 4 for Figure 3 The front view;

[0042] Figure 5 for Figure 4 A schematic diagram of the structure after removing the main body of the detector;

[0043] Figure 6 for Figure 5 Schematic diagram of the upper structure of the flexible intake pipe;

[0044] Figure 7 for Figure 6 Enlarged view of the structure at part A in the middle;

[0045] Figure 8 for Figure 5 A schematic diagram of the upper cross-sectional structure of the servo motor and air guide box;

[0046] Figure 9 for Figure 8 Front view of the internal structure of the central gas guide box and the detection box;

[0047] Figure 10 for Figure 8 Schematic diagram of the side cross-sectional structure of the servo motor and air guide box;

[0048] Figure 11 for Figure 10 A schematic diagram of the structure of the servo motor and multiple detection boxes;

[0049] Figure 12 for Figure 11 A side cross-sectional view of the servo motor and the detection box;

[0050] Figure 13 for Figure 11 A schematic diagram of the upper cross-sectional structure of the detection box;

[0051] Figure 14for Figure 11 A side sectional view of the servo motor and the intake air box;

[0052] Figure 15 for Figure 9 Exploded view of the upper structure of the drive roller and reciprocating screw.

[0053] In the diagram: 1. Main body of the detector; 2. Control panel; 3. Detection handle; 4. Elastic air inlet pipe; 5. Telescopic rocker arm; 6. Push spring rod; 7. Traction rope; 8. Servo motor; 9. Air guide box; 10. Detection box; 11. Suction box; 12. Suction branch pipe; 13. Drive roller; 14. Reciprocating screw; 15. Moving ring; 16. Positioning ring; 17. Mounting bracket; 18. Traction roller; 19. Positioning pin; 20. Positioning hole; 21. Reciprocating suction plate; 22. Air distribution square pipe; 23. Waste discharge pipe; 24. Ball bearing nut disc; 25. Exhaust pipe; 26. Gas detection sensor; 27. Reset spring rod; 28. Main suction pipe; 29. ​​Return suction pipe; 30. Linkage pull rope; 31. One-way bearing rod one; 32. Filter screen plate; 33. Linkage rod; 34. Linkage plate; 35. Linkage push plate; 36. Guide wheel; 37. One-way bearing rod two; 38. Suction impeller. Detailed Implementation

[0054] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0055] Example 1: Refer to Figures 1-2 A portable intelligent gas detector with multi-mode fusion includes a detector body 1, and a detection handle 3 is fixedly installed on the side of the detector body 1. The detector body 1 can be moved portablely and quickly through the detection handle 3, so as to realize gas detection in multiple locations and areas.

[0056] This testing instrument also includes:

[0057] The flexible air inlet tube 4 is located outside the main body 1 of the detector and is used to absorb the gas to be detected from the outside. The flexible air inlet tube 4 can extend and retract, so that the position of its air intake end can be flexibly adjusted, thereby performing air intake detection in different areas and improving the overall detection range.

[0058] The air collection unit is located inside the main body 1 of the detector. It is used to quickly draw air from the area to be detected into the main body 1 of the detector for detection. The position and range of air intake can be flexibly adjusted according to the detection requirements to effectively improve the detection efficiency.

[0059] The detection unit is located inside the main body 1 of the detector. The detection unit is used to uniformly conduct and divide the air drawn in by the gas collection unit, and to independently detect the air in different zones, thereby realizing the simultaneous detection of multiple gas components and effectively improving the detection efficiency.

[0060] The upper part of the detector body 1 is equipped with a control panel 2, which controls the opening and closing and operation status of the gas collection unit and the detection unit to realize automatic and intelligent gas detection.

[0061] Example 2: Refer to Figures 2-7 The technical solution that differs from that of Embodiment 1 is that the gas collection unit includes an adjustment component and a suction component. The adjustment component is used to adjust the end position of the elastic air inlet tube 4 to achieve multi-point targeted air intake, and the suction component is used to draw gas into the detector body 1 through the elastic air inlet tube 4.

[0062] The air intake assembly includes a servo motor 8 fixedly installed inside the main body 1 of the detector. A drive roller 13 is fixedly installed on the drive end of the servo motor 8. An air guide box 9 is fixedly installed on the main body 1 of the detector, and the air guide box 9 is connected to the elastic air inlet pipe 4, so that the air in the elastic air inlet pipe 4 can directly enter the air guide box 9. When the servo motor 8 is started, it will drive the drive roller 13 to rotate in the forward or reverse direction.

[0063] An air blowing mechanism is installed between the air guide box 9 and the drive roller 13. The air blowing mechanism includes a one-way bearing rod 31 set on the drive roller 13. The one-way bearing rod 31 rotates synchronously in the forward direction under the drive of the forward rotation of the drive roller 13. A reciprocating screw 14 is fixedly installed on the one-way bearing rod 31. A ball nut disc 24 is fitted on the reciprocating screw 14. A reciprocating suction plate 21 is slidably installed in the air guide box 9. A linkage rod 33 is fixedly installed between the reciprocating suction plate 21 and the ball nut disc 24.

[0064] During air intake, the servo motor 8 is started to drive the drive roller 13 to rotate in the forward direction. When the drive roller 13 rotates in the forward direction, it will drive the one-way bearing rod 31 to rotate (when the drive roller 13 rotates in the reverse direction, the one-way bearing rod 31 will not rotate). When the one-way bearing rod 31 rotates, it will drive the reciprocating screw 14 to rotate.

[0065] The reciprocating screw 14 cooperates with the ball nut disc 24, so that when the reciprocating screw 14 rotates, it drives the ball nut disc 24 to move back and forth on the reciprocating screw 14. When the ball nut disc 24 moves to the right, it will drive the reciprocating suction plate 21 to move to the right in the air guide box 9 through the linkage rod 33. When the ball nut disc 24 moves to the left, it will drive the reciprocating suction plate 21 to move to the left in the air guide box 9 through the linkage rod 33. The reciprocating screw 14 rotates continuously to achieve the reciprocating left and right movement of the reciprocating suction plate 21 in the air guide box 9.

[0066] The cooperation between the reciprocating screw 14 and the ball nut disc 24 is existing technology. The specific principle is as follows: the reciprocating screw 14 is a form of three-dimensional cam pair, which is represented by two threaded grooves with the same pitch and opposite directions. The two ends of the screw are connected by a transition curve. Through the rotation of the screw, the side of the helical groove pushes the ball placed in the helical groove of the ball nut disc 24 to make axial reciprocating motion, thereby driving the ball nut disc 24 to move back and forth. That is, when the reciprocating screw 14 rotates in one direction, it can drive the ball nut disc 24 to make it move back and forth linearly on the reciprocating screw 14.

[0067] This part is existing technology and will not be elaborated on further.

[0068] When the reciprocating suction plate 21 moves to the left within the air guide box 9, the space on the right side of the reciprocating suction plate 21 within the air guide box 9 is increased, allowing external air to be detected to be drawn into the air guide box 9 through the elastic air inlet pipe 4. When the reciprocating suction plate 21 moves to the right, the air drawn into the air guide box 9 is automatically expelled.

[0069] In a further embodiment, the adjustment assembly includes a movable ring 15 and a positioning ring 16 fixedly installed at both ends of the elastic intake pipe 4, and a push spring rod 6 is fixedly installed between the movable ring 15 and the positioning ring 16, and the push spring rod 6 is in a compressed state in the initial state.

[0070] A mounting bracket 17 is fixedly installed on the positioning ring 16, and a traction roller 18 is rotatably installed on the mounting bracket 17. A traction rope 7 is fixedly connected between the traction roller 18 and the moving ring 15. A telescopic rocker arm 5 is rotatably installed on the traction roller 18. A positioning pin 19 is fixedly installed on the telescopic rocker arm 5. A plurality of positioning holes 20 that cooperate with the positioning pin 19 are provided on the mounting bracket 17.

[0071] When it is necessary to increase the length of the elastic air intake pipe 4, the telescopic rocker arm 5 can be pulled out first to move the positioning pin 19 outward, so that the positioning pin 19 is separated from the positioning hole 20, thereby releasing the positioning of the telescopic rocker arm 5 and the traction roller 18. Then, the telescopic rocker arm 5 is rotated to drive the traction roller 18 to rotate and release the traction rope 7. At this time, the push spring rod 6 will automatically extend due to the reduced tension, thereby driving the moving ring 15 away from the positioning ring 16. When the moving ring 15 moves, it will drive the elastic air intake pipe 4 to move and extend as a whole.

[0072] Once the position of the elastic air intake pipe 4 is adjusted, press the telescopic rocker arm 5 to move the positioning pin 19 so that it engages with the positioning hole 20 in the mounting bracket 17. This will limit the traction roller 18, preventing it from rotating further and thus preventing the release of the traction rope 7, thereby limiting the length of the elastic air intake pipe 4.

[0073] When it is necessary to reduce the length of the elastic air intake pipe 4, simply rotate the telescopic rocker arm 5 in the opposite direction to drive the traction roller 18 to reverse and rewind the traction rope 7. The traction rope 7 can then directly pull the moving ring 15 back, thereby compressing the elastic air intake pipe 4 through the moving ring 15 to make it contract, thus completing the shortening of the elastic air intake pipe 4.

[0074] The length of the flexible air inlet tube 4 can be flexibly controlled through the above operations, allowing it to be moved to different areas and environments for air intake, effectively increasing the air intake range of this detector and improving its detection range.

[0075] Example 3: Refer to Figures 2-5 as well as Figures 8-15 The difference between this embodiment and embodiment two is that the gas collection unit includes a partition detection component and a gas guiding component. The partition detection component is equipped with multiple gas detection sensors 26. The multiple gas detection sensors 26 have different functions and can perform targeted gas intake detection on the content of different gases in the air.

[0076] When activated, the gas detection sensor 26 draws in air from the surrounding environment through natural diffusion and detects the gas in the drawn-in air using its internal components.

[0077] The partition detection component is used to partition the inhaled gas and perform multi-component detection on the partitioned gas through multiple gas detection sensors 26. The gas guiding component is used to introduce and completely remove the gas in the partition detection component.

[0078] The partition detection component includes multiple detection boxes 10 fixedly installed on the air guide box 9. Each detection box 10 is fixedly connected to an air distribution square tube 22, and each air distribution square tube 22 is slidably connected to the reciprocating air intake plate 21.

[0079] When the reciprocating suction plate 21 moves to the right, the air drawn in into the air guide box 9 is forced into multiple air distribution square tubes 22, and the corresponding air is injected into the detection box 10 through the air distribution square tubes 22. This completes the partitioned storage of air, dividing the air into three parts and conducting them to the three detection boxes 10. The air content in each detection box 10 is the same, which means that it will not affect the detection of air composition.

[0080] Control valves are installed on both the flexible intake pipe 4 and the multiple air distribution square pipes 22. The control valves are used to control the opening and closing states of the flexible intake pipe 4 and the air distribution square pipes 22. When the reciprocating suction plate 21 moves to the left to draw in air, the control valve on the flexible intake pipe 4 opens, making the flexible intake pipe 4 connected for air intake. At the same time, the control valve on the air distribution square pipe 22 closes, so that the air in the air distribution square pipe 22 will not be drawn out. When the reciprocating suction plate 21 moves to the right to compress air, the control valve on the flexible intake pipe 4 closes, making it closed, while the control valve in the air distribution square pipe 22 opens, making it connected. Thus, when compressing air, air is forced into the air distribution square pipe 22 and will not be forced out through the flexible intake pipe 4.

[0081] Each gas distribution square tube 22 is equipped with a waste removal mechanism, which includes a filter screen 32 fixedly installed inside the gas distribution square tube 22 for filtering impurities in the gas. A ash removal pipe is fixedly installed at the lower part of the gas distribution square tube 22, and a waste removal pipe 23 for waste removal is provided between the gas guide box 9 and the detector body 1.

[0082] When air enters the gas distribution square tube 22, it will come into contact with the filter screen 32 inside. At this time, the filter screen 32 can filter out particulate impurities in the air. After the gas detection is completed, the lower ash pipe can be opened to allow the impurities in the gas distribution square tube 22 to fall to the bottom of the air guide box 9 through the lower ash pipe. Then, the impurity discharge pipe 23 can be opened to discharge the impurities at the bottom of the air guide box 9.

[0083] In a further embodiment, the gas guiding assembly includes a linkage plate 34 fixedly mounted on the ball nut disc 24, a linkage push plate 35 slidably mounted in each detection box 10, and a gas detection sensor 26 fixedly mounted on the linkage push plate 35. A reset spring rod 27 is fixedly mounted between the linkage push plate 35 and the detection box 10. A linkage pull rope 30 is fixedly connected between the linkage plate 34 and the linkage push plate 35. A guide wheel 36 cooperating with the linkage pull rope 30 is provided at the lower part of the detection box 10.

[0084] When the ball nut disc 24 moves to the left (see instruction manual) Figure 9 When the reciprocating suction plate 21 moves to the left to suck in air (as shown in the direction), the ball nut disc 24 moves to the left to loosen the linkage pull rope 30, thereby reducing the tension of the reset spring rod 27. At this time, the reset spring rod 27 will automatically extend and push the linkage push plate 35 to the right, thereby driving the gas detection sensor 26 on it to move to the right as a whole, and simultaneously reducing the distance between the right side of the linkage push plate 35 and the detection box 10. That is, by moving the linkage push plate 35, the air storage space in the detection box 10 is reduced when no air is being sucked in.

[0085] When the ball bearing nut disc 24 moves to the right, it drives the reciprocating suction plate 21 to move to the right to compress air. At this time, the rightward movement of the ball bearing nut disc 24 will pull the linkage pull rope 30, and through the traction of the linkage pull rope 30, it will pull the linkage push plate 35 to the left within the detection box 10. This allows air to enter the detection box 10 while increasing the storage space, thereby increasing the air storage space within the detection box 10 and improving the air storage range.

[0086] When the detection box 10 is not receiving air, the gas detection sensor 26 will start to detect the composition of the air in the detection box 10. When the detection box 10 is not receiving air, the movement of the linkage push plate 35 will reduce the air storage space, thereby compressing the air in the storage space, that is, pressurizing the air in the storage space. When the air is compressed, its molecular movement speed increases, that is, its fluidity increases, which can speed up its entry into the gas detection sensor 26.

[0087] That is, by compressing air, the speed at which the gas detection sensor 26 absorbs air is increased, thereby accelerating the detection efficiency of the gas detection sensor 26.

[0088] In a further embodiment, a gas exhaust mechanism for venting gas is jointly installed on multiple detection boxes 10. The gas exhaust mechanism includes an air intake box 11 fixedly installed inside the detector body 1, and the air intake box 11 is rotatably connected to the drive roller 13. A one-way bearing rod 37 is provided on the drive roller 13, and the one-way bearing rod 37 rotates synchronously in the opposite direction under the drive of the reverse rotation of the drive roller 13. A suction impeller 38 is fixedly installed on the one-way bearing rod 37, and the suction impeller 38 is located inside the air intake box 11.

[0089] Once the air detection in the detection box 10 is complete, the servo motor 8 can be started to drive the drive roller 13 to reverse. When the drive roller 13 reverses, it will drive the one-way bearing rod 37 to rotate (at this time, the one-way bearing rod 31 does not rotate). The rotation of the one-way bearing rod 37 will drive the suction impeller 38 on it to rotate.

[0090] The suction box 11 is fixedly connected to the main suction pipe 28 via the return suction pipe 29, and each detection box 10 is fixedly connected to the main suction pipe 28 via a suction branch pipe 12 for sucking out the gas in the detection box 10. The suction box 11 is fixedly connected to the main body 1 of the detector via an exhaust pipe 25 for exhausting the gas.

[0091] When the suction impeller 38 rotates, it will generate suction force in the suction box 11, which will draw the air in the detection box 10 into the suction box 11 through the return suction pipe 29, the main suction pipe 28 and the suction branch pipe 12, and then discharge it through the exhaust pipe 25.

[0092] With the assistance of the suction impeller 38, the air inside the detection box 10 can be completely removed, thereby preventing residual air in the detection box 10 from affecting the subsequent gas detection results and further improving the accuracy of the gas detection results.

[0093] The working principle of this detector is as follows:

[0094] Before testing, adjust the length of the flexible air intake tube 4 using the adjustment component and place its end in the area to be tested to complete the testing preparation work.

[0095] The servo motor 8 is then started to drive the drive roller 13 to rotate in the forward direction, which in turn drives the reciprocating screw 14 to rotate, which in turn drives the ball nut disc 24 to move back and forth on the reciprocating screw 14, thereby driving the reciprocating suction plate 21 to move back and forth in the air guide box 9. When the reciprocating suction plate 21 moves to the left in the air guide box 9, the space on the right side of the reciprocating suction plate 21 in the air guide box 9 can be increased, so that the external air to be tested can be sucked into the air guide box 9 through the elastic air inlet pipe 4.

[0096] When the reciprocating suction plate 21 moves to the right, the air drawn in into the air guide box 9 can be forced into multiple air distribution square tubes 22, and the corresponding air can be injected into the detection box 10 through the air distribution square tubes 22, thus completing the partitioned storage of air and dividing the air into three parts and conducting them into three detection boxes 10. At this time, the gas detection sensor 26 can be activated to detect the composition of the gas in the detection box 10.

[0097] When the detection box 10 does not take in air, the linkage push plate 35 moves to reduce the storage space and pressurize the air in the storage space. When the air is compressed, the speed at which it enters the gas detection sensor 26 will increase, thereby increasing the detection efficiency of the gas detection sensor 26.

[0098] This invention also provides a multi-mode fusion portable intelligent gas detection method for the aforementioned multi-mode fusion portable intelligent gas detector, comprising the following steps:

[0099] S1. When performing gas detection, the length of the flexible air inlet tube 4 is adjusted by adjusting the component, and the end of the flexible air inlet tube 4 is inserted into the area to be detected.

[0100] S2. The intake assembly is activated to draw gas into the main body 1 of the detector through the elastic intake tube 4.

[0101] S3. With the cooperation of the gas guiding component, the inhaled gas is divided into zones for storage by the zone detection component, and multiple gas detection sensors 26 are activated simultaneously to detect the composition of the gas in each zone in different modes.

[0102] S4. After the test is completed, the gas in each zone is completely purged through the gas guide assembly, and the gas test of the next zone is carried out after the exhaust is completed.

[0103] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A portable intelligent gas detector with multi-mode fusion, comprising a detector body (1), characterized in that, Also includes: The flexible air inlet tube (4) is located outside the main body (1) of the detector and is used to absorb the gas to be detected from the outside. The gas collection unit is located inside the main body (1) of the detector and includes an adjustment component and a suction component. The adjustment component is used to adjust the end position of the elastic air inlet tube (4) to achieve multi-point targeted air intake, and the suction component is used to draw gas into the main body (1) of the detector through the elastic air inlet tube (4). The detection unit is located inside the main body (1) of the detector and includes a partition detection component and a gas guiding component. The partition detection component is equipped with multiple gas detection sensors (26). The partition detection component is used to partition the inhaled gas and perform multi-component detection on the partitioned gas through multiple gas detection sensors (26). The gas guiding component is used to realize the introduction and complete removal of gas in the partition detection component. The air intake assembly includes a servo motor (8) fixedly installed inside the detector body (1), a drive roller (13) fixedly installed on the drive end of the servo motor (8), an air guide box (9) fixedly installed on the detector body (1), and the air guide box (9) is connected to the elastic air inlet pipe (4). An air blowing mechanism is installed between the air guide box (9) and the drive roller (13). The air blowing mechanism includes a one-way bearing rod (31) set on the drive roller (13), and the one-way bearing rod (31) rotates synchronously in the forward direction under the drive of the drive roller (13) rotating in the forward direction. A reciprocating screw (14) is fixedly installed on the one-way bearing rod (31), and a ball nut disc (24) is fitted on the reciprocating screw (14). A reciprocating suction plate (21) is slidably installed in the air guide box (9), and a linkage rod (33) is fixedly installed between the reciprocating suction plate (21) and the ball nut disc (24). The adjustment assembly includes a movable ring (15) and a positioning ring (16) fixedly installed at both ends of the elastic intake pipe (4), and a push spring rod (6) is fixedly installed between the movable ring (15) and the positioning ring (16), and the push spring rod (6) is in a compressed state in the initial state. A mounting bracket (17) is fixedly installed on the positioning ring (16), and a traction roller (18) is rotatably installed on the mounting bracket (17). A traction rope (7) is fixedly connected between the traction roller (18) and the moving ring (15). A telescopic rocker arm (5) is rotatably installed on the traction roller (18). A positioning pin (19) is fixedly installed on the telescopic rocker arm (5), and multiple positioning holes (20) that cooperate with the positioning pin (19) are provided on the mounting bracket (17).

2. The portable intelligent gas detector with multi-mode fusion according to claim 1, characterized in that, The upper part of the detector body (1) is provided with a control panel (2), which controls the opening and closing and operation status of the gas collection unit and the detection unit through the control panel (2) to realize automatic and intelligent gas detection; The detector body (1) is fixedly equipped with a detection handle (3) on its side, which enables the portable movement of the detector body (1).

3. A portable intelligent gas detector with multi-mode fusion according to claim 1, characterized in that, The partition detection component includes multiple detection boxes (10) fixedly installed on the air guide box (9). Each detection box (10) is fixedly connected to a gas distribution square tube (22), and each gas distribution square tube (22) is slidably connected to the reciprocating air intake plate (21). The elastic air inlet pipe (4) and the multiple gas distribution square tubes (22) are each equipped with a control valve, and each gas distribution square tube (22) is equipped with a waste removal mechanism.

4. A portable intelligent gas detector with multi-mode fusion according to claim 3, characterized in that, The impurity removal mechanism includes a filter screen (32) fixedly installed in the gas distribution square tube (22) for filtering impurities in the gas. A ash removal pipe is fixedly installed at the lower part of the gas distribution square tube (22), and an impurity removal pipe (23) is provided between the gas guide box (9) and the detector body (1) for removing impurities.

5. A portable intelligent gas detector with multi-mode fusion according to claim 3, characterized in that, The gas guiding assembly includes a linkage plate (34) fixedly mounted on a ball nut disc (24), a linkage push plate (35) slidably mounted in each of the detection boxes (10), and a gas detection sensor (26) fixedly mounted on the linkage push plate (35). A reset spring rod (27) is fixedly mounted between the linkage push plate (35) and the detection box (10). A linkage pull rope (30) is fixedly connected between the linkage plate (34) and the linkage push plate (35). A guide wheel (36) cooperating with the linkage pull rope (30) is provided at the lower part of the detection box (10). A gas exhaust mechanism for venting gas is installed on multiple detection boxes (10).

6. A portable intelligent gas detector with multi-mode fusion according to claim 5, characterized in that, The exhaust mechanism includes an air intake box (11) fixedly installed in the main body (1) of the detector, and the air intake box (11) is rotatably connected to the drive roller (13). The drive roller (13) is provided with a one-way bearing rod (37), and the one-way bearing rod (37) rotates synchronously in the opposite direction under the drive of the reverse rotation of the drive roller (13). The one-way bearing rod (37) is fixedly installed with a suction impeller (38), and the suction impeller (38) is located inside the air intake box (11). The suction box (11) is fixedly connected to the main suction pipe (28) via the return suction pipe (29), and each detection box (10) is fixedly connected to the main suction pipe (28) for sucking out the gas in the detection box (10). The suction box (11) is fixedly connected to the main body of the detector (1) for exhaust pipe (25).

7. A portable intelligent gas detection method with multi-mode fusion, used in the portable intelligent gas detector with multi-mode fusion as described in any one of claims 1-6, characterized in that, Includes the following steps: S1. When performing gas detection, the length of the elastic air inlet tube (4) is adjusted by adjusting the component, and the end of the elastic air inlet tube (4) is inserted into the area to be detected. S2. Start the air intake assembly to adsorb gas into the main body (1) of the detector through the elastic air intake tube (4); S3. The inhaled gas is divided into zones and stored by the zone detection component in cooperation with the gas guiding component, and multiple gas detection sensors (26) are activated simultaneously to detect the composition of the gas in each zone in different modes. S4. After the test is completed, the gas in each zone is completely purged through the gas guide assembly, and the gas test of the next zone is carried out after the exhaust is completed.

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