Multi-position adjustable collecting equipment for tail gas detection

Abstract

The invention discloses a multi-position adjusting collecting device for tail gas detection, and relates to the technical field of tail gas collection, the multi-position adjusting collecting device comprises a machine shell, an adjusting mechanism and a collecting mechanism, the adjusting mechanism comprises a linear guide rail, an I-shaped sliding block is slidably installed in the middle of the top of the linear guide rail, and an air cylinder is installed on the side of the top of the linear guide rail; the top of the I-shaped sliding block is fixedly provided with a servo motor, the output end of the servo motor is fixedly provided with a rotating disc through a coupler, and the side, away from the output end of the servo motor, of the rotating disc is fixedly provided with an oval rail; a semicircular cover is fixedly installed at the position, close to the universal ball, of the outer circle face of the air pipe, and a rotational flow assembly is installed at the end, away from the universal ball, of the air pipe. According to the multi-position adjustable collecting equipment for tail gas detection, the angle adjustable effect is achieved, multi-position adjustment can be achieved, and the tail gas collecting range is enlarged.

Description

Technical Field

[0001] The invention relates to the technical field of tail gas collection, in particular to a multi-position adjustable tail gas collection device for detecting tail gas. Background Art

[0002] With the development of social economy, the number of urban vehicles has increased rapidly, and vehicle pollutants have become an important problem faced by many cities in my country. Therefore, developing and establishing scientific and effective vehicle exhaust emission detection systems and methods, monitoring the main pollutants emitted by vehicles, and thus discovering high-emission vehicles have become an important means of controlling vehicle emission pollution. Exhaust gas is the product of the process in which the engine uses oxygen in the air and fuel combustion to convert heat energy into mechanical energy for vehicle power. Its composition and temperature directly reflect the quality of engine combustion. The engine failure can be judged by analyzing and detecting various components of exhaust gas. Exhaust gas components include water vapor, O2, H2, N2, CO2, CO, HC compounds, NOX, SO2, particulate matter, etc. By detecting the content of different components of gas in automobile exhaust emissions, the combustion condition of the engine is comprehensively evaluated, providing a basis for diagnosing the failure of various engine systems.

[0003] At present, when detecting and collecting automobile exhaust gas, the existing exhaust gas collection pipe cannot be adjusted, so the position of the exhaust gas collection pipe is fixed, which affects the overall exhaust gas collection range and has great limitations, resulting in inaccurate subsequent exhaust gas detection. Summary of the invention

[0004] To achieve the above objectives, the present invention is implemented through the following technical solutions: a multi-position adjustable exhaust gas detection collection device, comprising:

[0005] A casing, the casing having a supporting shell, wherein a collecting box is installed in the middle of the bottom of the inner cavity of the casing;

[0006] An adjustment mechanism, which is used to perform multi-position adjustment on the exhaust gas collection device, and is installed in the middle of the top of the collection box;

[0007] Wherein, the adjustment mechanism comprises a linear guide rail, the bottom of the linear guide rail is fixedly installed at the middle of the top of the collection box through a bracket, an I-shaped slider is slidably installed at the middle of the top of the linear guide rail, a cylinder is installed at the side of the top of the linear guide rail, the telescopic end of the cylinder is fixedly installed at the middle of the outer side of the I-shaped slider, a servo motor is fixedly installed at the top of the I-shaped slider, a turntable is fixedly installed at the output end of the servo motor through a coupling, and an elliptical track is fixedly installed on the side of the turntable away from the output end of the servo motor;

[0008] A collecting mechanism, which is used to collect automobile exhaust gas, and is installed outside the casing and close to the rotating disk;

[0009] The air collecting mechanism comprises a connecting frame and an air pipe, the connecting frame is slidably mounted on the side of the outer side of the casing and close to the top position, the bottom end of the connecting frame is hinged with a circular ring, the air pipe passes through the center of the circular ring, the end of the air pipe close to the elliptical track is hinged with a universal ball, the universal ball is slidably mounted between the elliptical track, a semicircular cover is fixedly mounted on the outer cylindrical surface of the air pipe and close to the universal ball, a swirl assembly is mounted on the end of the air pipe away from the universal ball, a fan is mounted in the middle of the bottom of the linear guide rail, the air inlet end of the fan is connected with the air outlet end of the air pipe through a hose, the suction force of the fan and the connection of the hose are used to make the external exhaust gas enter the air pipe from the swirl assembly, and the gas is timely gathered into the collection box through the air outlet end of the fan, so that the exhaust gas can be collected, and at the same time, room is left under the connection of the hose, so that the air pipe is not prone to structural jamming when moving, thereby facilitating smooth collection of exhaust gas.

[0010] Preferably, the elliptical track is installed in the middle of the outer side of the turntable, and the turntable and the servo motor are installed at the same height. The turntable can be driven to rotate by the rotation of the output end of the servo motor, so that the elliptical track is driven to rotate. When the universal ball is below the short diameter in the middle of the elliptical track and the ring is hingedly connected, the air pipe can be rotated counterclockwise to adjust the angle;

[0011] As the turntable drives the elliptical track to rotate, the universal ball gradually moves below the long diameter in the middle of the elliptical track 3, so that the air pipe can be rotated clockwise to adjust the angle, and the short diameter and long diameter in the middle of the elliptical track can be used together to make the air pipe swing back and forth, so that the swirl component as a whole can reciprocate in the upper and lower squares.

[0012] Preferably, the center of the circular ring coincides with the axis of the center of the air pipe, the semicircular cover is installed inside the casing, and the air outlet end of the fan is connected to the top of the collection box.

[0013] By utilizing the extension and contraction of the telescopic end of the cylinder and under the guidance of the linear guide rail, the I-shaped slider drives the servo motor and the turntable as a whole to move back and forth in a straight line. At the same time, the sliding installation between the connecting frame and the casing makes the air pipe reciprocate in the horizontal direction under the connection of the circular ring, so that the angle and horizontal direction of the air pipe can be freely adjusted to increase the collection range of the exhaust gas.

[0014] Preferably, the swirl assembly includes a sealing sleeve and an air inlet head, the sealing sleeve is sealingly installed on the outer circumferential surface of the trachea and away from one end of the universal ball, the air inlet head is installed on the outer circumferential surface of the trachea and close to the sealing sleeve, and a guide vane is fixedly installed inside the air inlet head, and a circular hole is opened on the curved surface on the outer side of the guide vane. When the exhaust gas enters from the bell mouth of the air inlet head under the suction force of the fan and contacts the guide vane, the exhaust gas can be guided by the guide vane, and combined with the spiral shape of the guide vane, the exhaust gas is swirled, and part of the exhaust gas passes through the circular hole. Under the action of the swirl, the exhaust gas can be mixed more evenly in the collection area of ​​the detection equipment to reduce local concentration differences.

[0015] Preferably, the guide blade is spiral-shaped and installed in the middle of the inner cavity of the air inlet head, and the circular holes are evenly distributed on the curved surface outside the guide blade to facilitate the exhaust gas to pass through the circular holes.

[0016] Preferably, a gas detection mechanism is installed inside the casing and near the collecting box, the gas detection mechanism includes a square supporting tube body, a detection host is installed on the top of the square supporting tube body, and the detection host and the connecting frame are installed at adjacent surfaces, a detection probe is installed in the middle of the bottom of the square supporting tube body, the detection probe and the detection host are connected by a wire, an alarm is installed on the side of the top of the casing, the alarm and the detection host are connected by a wire, when the exhaust gas gathers in the collecting box, the detection probe can be installed inside the collecting box, so that the detection probe contacts the exhaust gas in the collecting box, and the exhaust gas can be detected through the detection host, and the alarm will display the detection result to remind the display result in time.

[0017] Preferably, the detection host is installed at the side of the outer side of the casing, and the detection probe is installed inside the collection box.

[0018] Preferably, an auxiliary component is installed in the middle of the collection box, and the auxiliary component includes a square guide rod, which is slidably installed on the top of the collection box and close to the semicircular cover, a pressure plate is fixedly installed on the top of the square guide rod, a flat plate is fixedly installed on the bottom of the square guide rod, a rectangular sheet is fixedly installed on the side of the top of the flat plate, an elastic support ring is fixedly installed between the bottom of the square guide rod and the bottom of the inner cavity of the collection box, and the elastic support ring is installed directly below the square guide rod, and a brush is fixedly installed on the side of the outer side of the flat plate and at one end away from the elastic support ring through a frame, and the semicircular cover is used to contact the pressure plate. As the semicircular cover continues to move, the pressure plate is subjected to downward pressing force, and under the sliding support of the square guide rod, the flat plate and the rectangular sheet move downward and compress the elastic support ring;

[0019] When the semicircular cover is separated from the pressure plate, the pressing force on the pressure plate disappears, and under the elastic force of the elastic support ring, the flat plate and the rectangular plate move upward to reset. The flat plate and the rectangular plate can move back and forth to fan the exhaust gas in the collection box, so that the exhaust gas can always remain dynamic and fan the exhaust gas to a position close to the detection probe, thereby increasing the accuracy of exhaust gas detection and making full use of the interaction between the structures to connect the structures together.

[0020] Preferably, the square guide rod is installed vertically, the pressure plate is arc-shaped, and the pressure plate is installed directly above the square guide rod. When the plate moves up and down, it can drive the brush to move back and forth, and use the end of the brush to fit the surface of the detection probe to promptly brush off the particulate debris attached to the surface of the detection probe for self-cleaning.

[0021] Preferably, the rectangular pieces are installed obliquely, and the rectangular pieces are evenly distributed on the sides of the top of the flat plate.

[0022] The present invention provides a multi-position adjustable exhaust gas detection collection device, which has the following beneficial effects:

[0023] 1. The multi-position adjustable exhaust gas detection collection equipment utilizes the suction of the fan and, under the connection of the hose, allows the external exhaust gas to enter the air pipe from the cyclone component, and promptly gathers the gas in the collection box through the air outlet of the fan, so that the exhaust gas can be collected. At the same time, room is left under the connection of the hose, so that the air pipe is not prone to structural jamming when moving, which helps to collect the exhaust gas smoothly.

[0024] 2. This multi-position adjustable exhaust gas detection and collection equipment, when the exhaust gas enters from the bell-shaped mouth of the air inlet head under the suction of the fan and makes the exhaust gas contact the guide vanes, the exhaust gas can be guided by the guide vanes, and combined with the spiral shape of the guide vanes, the exhaust gas can be swirled, and part of the exhaust gas can pass through the circular hole. Under the action of the swirl, the exhaust gas can be mixed more evenly in the collection area of ​​the detection equipment, reducing local concentration differences.

[0025] 3. The multi-position adjustable exhaust gas detection collection equipment utilizes the output end of the servo motor to drive the turntable to rotate, so that the elliptical track is driven to rotate. When the universal ball is below the short diameter in the middle of the elliptical track and is hingedly connected to the ring, the air pipe can be rotated counterclockwise to adjust the angle. As the turntable drives the elliptical track to rotate, the universal ball gradually moves below the long diameter in the middle of the elliptical track 3, and the air pipe can be rotated clockwise to adjust the angle. The short diameter and long diameter in the middle of the elliptical track can be used together to make the air pipe swing back and forth, so that the swirl component as a whole can reciprocate in the upper and lower squares.

[0026] 4. The multi-position adjustable exhaust gas detection collection equipment utilizes the extension and contraction of the telescopic end of the cylinder and, under the guidance of the linear guide rail, enables the I-shaped slider to drive the servo motor and the turntable as a whole to move back and forth in a straight line. At the same time, the sliding installation between the connecting frame and the casing allows the air pipe to move back and forth in the horizontal direction under the connection of the circular ring, thereby freely adjusting the angle and horizontal direction of the air pipe, performing multi-position adjustment, and increasing the collection range of the exhaust gas.

[0027] 5. This multi-position adjustable exhaust gas detection collection device can be used to detect exhaust gas. When the exhaust gas gathers in the collection box, the detection probe can be installed inside the collection box so that the detection probe comes into contact with the exhaust gas in the collection box. The exhaust gas can be detected through the detection host, and the alarm will display the detection result to remind you to display the result in time.

[0028] 6. The multi-position adjustable exhaust gas detection collection equipment uses a semicircular cover to apply pressing force to the pressure plate, and under the sliding support of the square guide rod, the flat plate and the rectangular plate move downward. When the pressing force of the semicircular cover on the pressure plate disappears, and under the elastic force of the elastic support ring, the flat plate and the rectangular plate move upward for reset, the flat plate and the rectangular plate can be moved back and forth to fan the exhaust gas in the collection box, so that the exhaust gas can always remain dynamic and fan the exhaust gas to a position close to the detection probe, thereby increasing the accuracy of exhaust gas detection.

[0029] 7. The multi-position adjustable exhaust gas detection collection equipment can drive the brush to move back and forth when the flat plate moves up and down, and use the end of the brush to fit the surface of the detection probe to promptly brush off the particulate debris attached to the surface of the detection probe for self-cleaning. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 This is a schematic diagram of the overall structure of the multi-position adjustable exhaust gas detection collection device of the present invention;

[0031] Figure 2 It is a schematic diagram of the cross-sectional structure of the collection device for exhaust gas detection with multi-position adjustment of the present invention;

[0032] Figure 3 It is a schematic diagram of the connection structure between the adjustment mechanism and the collection box of the present invention;

[0033] Figure 4 It is a schematic diagram of the side structure of the adjustment mechanism of the present invention;

[0034] Figure 5 It is a schematic diagram of the overall structure of the collecting mechanism of the present invention;

[0035] Figure 6 It is a schematic diagram of the overall structure of the swirl assembly of the present invention;

[0036] Figure 7 It is a schematic diagram of the connection structure between the gas detection mechanism of the present invention and the collection box and the casing;

[0037] Figure 8 It is a schematic diagram of the overall structure of the auxiliary components of the present invention.

[0038] In the figure: 1. casing; 2. collecting box; 3. adjusting mechanism; 4. collecting mechanism; 5. gas detection mechanism; 6. auxiliary components; 31. linear guide rail; 32. I-shaped slider; 33. cylinder; 34. servo motor; 35. turntable; 36. elliptical track; 41. connecting frame; 42. air pipe; 43. circular ring; 44. universal ball; 45. semicircular cover; 46. swirl component; 47. fan; 461. sealing sleeve; 462. air inlet head; 463. guide vane; 464. circular hole; 51. square support tube body; 52. detection host; 53. detection probe; 54. alarm; 61. square guide rod; 62. pressure plate; 63. flat plate; 64. rectangular sheet; 65. elastic support ring; 66. brush. DETAILED DESCRIPTION

[0039] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.

[0040] The first embodiment, as Figure 1-Figure 4 As shown, the present invention provides a technical solution: a multi-position adjustable exhaust gas detection collection device, comprising:

[0041] The casing 1 has a supporting shell, and a collecting box 2 is installed in the middle of the bottom of the inner cavity of the casing 1;

[0042] An adjustment mechanism 3, which is used to adjust the exhaust gas collection device in multiple positions, and the adjustment mechanism 3 is installed in the middle of the top of the collection box 2;

[0043] The adjustment mechanism 3 includes a linear guide rail 31, the bottom of which is fixedly installed at the middle of the top of the collection box 2 through a bracket, an I-shaped slider 32 is slidably installed at the middle of the top of the linear guide rail 31, a cylinder 33 is installed at the side of the top of the linear guide rail 31, the telescopic end of the cylinder 33 is fixedly installed at the middle of the outer side of the I-shaped slider 32, a servo motor 34 is fixedly installed at the top of the I-shaped slider 32, a turntable 35 is fixedly installed at the output end of the servo motor 34 through a coupling, and an elliptical track 36 is fixedly installed on the side of the turntable 35 away from the output end of the servo motor 34;

[0044] The elliptical track 36 is installed in the middle of the outer side of the turntable 35 , and the turntable 35 and the servo motor 34 are installed at the same height.

[0045] A collecting mechanism 4, which is used to collect automobile exhaust gas, and is installed outside the housing 1 and close to the rotating disk 35;

[0046] The collecting mechanism 4 includes a connecting frame 41 and an air pipe 42. The connecting frame 41 is slidably mounted on the side of the outer side of the casing 1 and close to the top. The bottom end of the connecting frame 41 is hinged with a ring 43. The air pipe 42 passes through the center of the ring 43. The end of the air pipe 42 close to the elliptical track 36 is hinged with a universal ball 44. The universal ball 44 is slidably mounted between the elliptical track 36. A semicircular cover 45 is fixedly mounted on the outer cylindrical surface of the air pipe 42 and close to the universal ball 44. A swirl assembly 46 is installed on the end of the air pipe 42 away from the universal ball 44. The linear guide 3 A fan 47 is installed in the middle of the bottom of the fan 47. The air inlet end of the fan 47 is connected to the air outlet end of the air pipe 42 through a hose. The staff turns on the fan 47 to work, and uses the suction of the fan 47 and the connection of the hose to allow the external tail gas to enter the air pipe 42 from the cyclone component 46, and timely gather the gas in the collection box 2 through the air outlet end of the fan 47, so that the tail gas can be collected. At the same time, there is room under the connection of the hose, so that the air pipe 42 is not easy to get stuck when moving, which is conducive to smooth collection of tail gas.

[0047] The center of the ring 43 coincides with the axis of the center of the air pipe 42, the semicircular cover 45 is installed inside the housing 1, and the air outlet of the fan 47 is connected to the top of the collection box 2. The staff turns on the servo motor 34 to work. The rotation of the output end of the servo motor 34 can drive the turntable 35 to rotate, so that the elliptical track 36 is driven to rotate. When the universal ball 44 is below the short diameter in the middle of the elliptical track 36, and under the hinged connection of the ring 43, the air pipe 42 can be rotated counterclockwise to adjust the angle;

[0048] As the turntable 35 drives the elliptical track 36 to rotate, the universal ball 44 gradually moves below the long diameter in the middle of the elliptical track 336, so that the air pipe 42 can be rotated clockwise to adjust the angle, and the short diameter and long diameter in the middle of the elliptical track 36 can be used together to make the air pipe 42 swing back and forth, so that the swirl component 46 as a whole reciprocates in the upper and lower squares.

[0049] The staff turns on the cylinder 33 to work, and utilizes the extension and contraction of the telescopic end of the cylinder 33. Under the guidance of the linear guide 31, the I-shaped slider 32 drives the servo motor 34 and the turntable 35 to move back and forth in a straight line as a whole. At the same time, the sliding installation between the connecting frame 41 and the casing 1 makes the connection of the ring 43, so that the air pipe 42 moves back and forth in the horizontal direction, thereby freely adjusting the angle and horizontal direction of the air pipe 42 to increase the collection range of the exhaust gas.

[0050] The second embodiment, as Figure 1-Figure 6 As shown, based on the first embodiment:

[0051] The swirl assembly 46 includes a sealing sleeve 461 and an air inlet head 462. The sealing sleeve 461 is sealingly installed on the outer cylindrical surface of the air pipe 42 and away from one end of the universal ball 44. The air inlet head 462 is installed on the outer cylindrical surface of the air pipe 42 and close to the sealing sleeve 461. A guide blade 463 is fixedly installed inside the air inlet head 462. A circular hole 464 is opened on the curved surface on the outer side of the guide blade 463. When the exhaust gas enters from the bell mouth of the air inlet head 462 under the suction force of the fan 47, and makes the exhaust gas contact the guide blade 463, so that the exhaust gas can be guided by the guide blade 463. Combined with the spiral shape of the guide blade 463, the exhaust gas is swirled, and part of the exhaust gas passes through the circular hole 464. Under the action of the swirl, the exhaust gas can be mixed more evenly in the collection area of ​​the detection equipment to reduce local concentration differences.

[0052] The guide blade 463 is spiral-shaped and is installed in the middle of the inner cavity of the air inlet head 462 . The circular holes 464 are evenly distributed on the curved surface outside the guide blade 463 to facilitate the exhaust gas to pass through the circular holes 464 .

[0053] The third embodiment, as Figure 1-Figure 8 As shown, based on the first and second embodiments:

[0054] A gas detection mechanism 5 is installed inside the casing 1 and near the collecting box 2. The gas detection mechanism 5 includes a square support tube body 51. A detection host 52 is installed on the top of the square support tube body 51, and the detection host 52 and the connecting frame 41 are installed at adjacent surfaces. A detection probe 53 is installed in the middle of the bottom of the square support tube body 51. The detection probe 53 and the detection host 52 are connected by a wire. An alarm 54 is installed on the side of the top of the casing 1. The alarm 54 and the detection host 52 are connected by a wire. When the exhaust gas gathers in the collecting box 2, the detection probe 53 can be installed inside the collecting box 2 so that the detection probe 53 contacts the exhaust gas in the collecting box 2, and the exhaust gas can be detected through the detection host 52.

[0055] At the same time, the alarm 54 will alarm and display the detection results, and remind the display results in time.

[0056] The detection host 52 is installed at the side of the outer side of the housing 1 , and the detection probe 53 is installed inside the collection box 2 .

[0057] An auxiliary component 6 is installed in the middle of the collection box 2. The auxiliary component 6 includes a square guide rod 61, which is slidably installed on the top of the collection box 2 and close to the semicircular cover 45. A pressure plate 62 is fixedly installed on the top of the square guide rod 61, a flat plate 63 is fixedly installed on the bottom of the square guide rod 61, and a rectangular sheet 64 is fixedly installed on the side of the top of the flat plate 63. An elastic support ring 65 is fixedly installed between the bottom of the square guide rod 61 and the bottom of the inner cavity of the collection box 2. The elastic support ring 65 is installed on the square guide rod 61. Directly below the guide rod 61, a brush 66 is fixedly installed through a frame at the side of the outer side of the flat plate 63 and at one end away from the elastic support ring 65. When the air pipe 42 moves in the horizontal direction, the semicircular cover 45 can be driven to move, and the semicircular cover 45 is in contact with the pressure plate 62. As the semicircular cover 45 continues to move, the pressure plate 62 is subjected to a downward pressing force, and under the sliding support of the square guide rod 61, the flat plate 63 and the rectangular sheet 64 move downward, and the elastic support ring 65 is compressed;

[0058] When the semicircular cover 45 is separated from the pressure plate 62, the pressing force on the pressure plate 62 disappears, and under the elastic force of the elastic support ring 65, the flat plate 63 and the rectangular sheet 64 move upward to reset. The flat plate 63 and the rectangular sheet 64 can move back and forth to fan the exhaust gas in the collection box 2, so that the exhaust gas can always remain dynamic and fan the exhaust gas to a position close to the detection probe 53, thereby increasing the accuracy of exhaust gas detection.

[0059] The square guide rod 61 is installed vertically, the pressure plate 62 is arc-shaped, and the pressure plate 62 is installed directly above the square guide rod 61 .

[0060] When the plate 63 moves up and down, it can drive the brush 66 to move back and forth, and use the end of the brush 66 to fit the surface of the detection probe 53 to brush away the particles and debris attached to the surface of the detection probe 53 in time.

[0061] The rectangular pieces 64 are installed obliquely, and the rectangular pieces 64 are evenly distributed on the sides of the top of the flat plate 63 .

[0062] When in use, first place the entire device at a known position in the detection area. At this time, the staff turns on the fan 47 to work, and uses the suction force of the fan 47. Under the connection of the hose, the exhaust gas enters from the bell mouth of the air inlet head 462, and makes the exhaust gas contact the guide blade 463. The exhaust gas can be guided by the guide blade 463, and combined with the spiral shape of the guide blade 463, the exhaust gas is swirled, and part of the exhaust gas passes through the circular hole 464. Under the action of the swirl, the exhaust gas can be more evenly mixed in the collection area of ​​the detection device, and the gas is timely gathered into the collection box 2 through the outlet end of the fan 47, so that the exhaust gas can be collected;

[0063] The staff turns on the servo motor 34 to work, and the rotation of the output end of the servo motor 34 can drive the turntable 35 to rotate, so that the elliptical track 36 is driven to rotate, and the universal ball 44 can be used to be below the short diameter in the middle of the elliptical track 36, and under the hinged connection of the ring 43, the air pipe 42 can be rotated counterclockwise to adjust the angle;

[0064] As the turntable 35 drives the elliptical track 36 to rotate, the universal ball 44 gradually moves below the long diameter in the middle of the elliptical track 336, so that the air pipe 42 can rotate clockwise to adjust the angle, and the short diameter and long diameter in the middle of the elliptical track 36 can be used together to make the air pipe 42 swing back and forth, so that the swirl component 46 as a whole reciprocates in the upper and lower squares;

[0065] At the same time, the staff starts the cylinder 33 to work, and uses the extension and contraction of the telescopic end of the cylinder 33, and under the guidance of the linear guide 31, the I-shaped slider 32 drives the servo motor 34 and the turntable 35 to move back and forth in a straight line as a whole. At the same time, the connection between the connecting frame 41 and the housing 1 is slidably installed, so that the connection of the ring 43 makes the air pipe 42 move back and forth in the horizontal direction, so that the angle and horizontal direction of the air pipe 42 can be freely adjusted to increase the collection range of the exhaust gas;

[0066] There is room under the connection of the hose, so that the air pipe 42 is not easily stuck when moving, which helps to collect the exhaust gas smoothly;

[0067] When the air pipe 42 moves in the horizontal direction, the semicircular cover 45 can be driven to move, and the semicircular cover 45 is in contact with the pressure plate 62. As the semicircular cover 45 continues to move, the pressure plate 62 is pressed downward, and under the sliding support of the square guide rod 61, the flat plate 63 and the rectangular sheet 64 move downward, and the elastic support ring 65 is compressed.

[0068] When the semicircular cover 45 is separated from the pressure plate 62, the pressing force on the pressure plate 62 disappears, and the flat plate 63 and the rectangular sheet 64 are moved upward to reset under the elastic force of the elastic support ring 65, so that the flat plate 63 and the rectangular sheet 64 can reciprocate to fan the exhaust gas in the collection box 2, so that the exhaust gas can always remain dynamic and fan the exhaust gas to a position close to the detection probe 53;

[0069] When the flat plate 63 moves up and down, the brush 66 can be driven to move back and forth, and the end of the brush 66 is attached to the surface of the detection probe 53 to timely remove the particles and debris attached to the surface of the detection probe 53;

[0070] When the exhaust gas gathers in the collection box 2, the detection probe 53 can be installed inside the collection box 2, so that the detection probe 53 contacts the exhaust gas in the collection box 2, and the exhaust gas can be detected by the detection host 52;

[0071] At the same time, the alarm 54 will alarm and display the detection results, and remind the display results in time.

[0072] Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field and related fields without creative work should fall within the scope of protection of the present invention. The structures, devices and operating methods not specifically described and explained in the present invention are implemented according to the conventional means in the field unless otherwise specified and limited.

Claims

1. A multi-position adjustable exhaust gas detection collection device, characterized in that: include: A casing (1), the casing (1) having a shell body with a supporting function, and a collection box (2) is installed in the middle of the bottom of the inner cavity of the casing (1); An adjustment mechanism (3), the adjustment mechanism (3) being used to perform multi-position adjustment on the exhaust gas collection device, the adjustment mechanism (3) being installed in the middle of the top of the collection box (2); The adjustment mechanism (3) comprises a linear guide rail (31), the bottom of the linear guide rail (31) is fixedly mounted to the middle of the top of the collection box (2) through a bracket, an I-shaped slider (32) is slidably mounted to the middle of the top of the linear guide rail (31), a cylinder (33) is mounted on the side of the top of the linear guide rail (31), the telescopic end of the cylinder (33) is fixedly mounted to the middle of the outer side of the I-shaped slider (32), a servo motor (34) is fixedly mounted to the top of the I-shaped slider (32), a turntable (35) is fixedly mounted to the output end of the servo motor (34) through a coupling, and an elliptical track (36) is fixedly mounted on the side of the turntable (35) away from the output end of the servo motor (34); A collecting mechanism (4), the collecting mechanism (4) is used to collect automobile exhaust gas, and the collecting mechanism (4) is installed outside the casing (1) and close to the rotating disk (35); The collecting mechanism (4) comprises a connecting frame (41) and an air pipe (42), wherein the connecting frame (41) is slidably mounted on the side of the outer side of the casing (1) and close to the top position, a circular ring (43) is hingedly connected to the bottom end of the connecting frame (41), the air pipe (42) passes through the center of the circular ring (43), a universal ball (44) is hingedly connected to one end of the air pipe (42) close to the elliptical track (36), the universal ball (44) is slidably mounted between the elliptical track (36), a semicircular cover (45) is fixedly mounted on the outer circumferential surface of the air pipe (42) and close to the universal ball (44), a swirl assembly (46) is mounted on one end of the air pipe (42) away from the universal ball (44), a fan (47) is mounted in the middle of the bottom of the linear guide rail (31), and the air inlet end of the fan (47) is connected to the air outlet end of the air pipe (42) through a hose.

2. The multi-position adjustable exhaust gas detection collection device according to claim 1, characterized in that: The elliptical track (36) is installed in the middle of the outer side of the turntable (35), and the turntable (35) and the servo motor (34) are installed at the same height.

3. The multi-position adjustable exhaust gas detection collection device according to claim 1, characterized in that: The center of the circular ring (43) coincides with the axis of the center of the air pipe (42), the semicircular cover (45) is installed inside the casing (1), and the air outlet end of the fan (47) is connected to the top of the collection box (2).

4. The multi-position adjustable exhaust gas detection collection device according to claim 1, characterized in that: The swirl assembly (46) comprises a sealing sleeve (461) and an air inlet head (462); the sealing sleeve (461) is sealingly mounted on the outer circumferential surface of the air pipe (42) and at one end away from the universal ball (44); the air inlet head (462) is mounted on the outer circumferential surface of the air pipe (42) and at a position close to the sealing sleeve (461); a guide vane (463) is fixedly mounted inside the air inlet head (462); and a circular hole (464) is provided on the curved surface on the outer side of the guide vane (463).

5. The multi-position adjustable exhaust gas detection collection device according to claim 4, characterized in that: The guide blade (463) is spiral-shaped, and the guide blade (463) is installed in the middle of the inner cavity of the air inlet head (462), and the circular holes (464) are evenly distributed on the curved surface outside the guide blade (463).

6. The multi-position adjustable exhaust gas detection collection device according to claim 1, characterized in that: A gas detection mechanism (5) is installed inside the casing (1) and near the collecting box (2). The gas detection mechanism (5) comprises a square support tube (51). A detection host (52) is installed on the top of the square support tube (51), and the detection host (52) and the connecting frame (41) are installed on adjacent surfaces. A detection probe (53) is installed in the middle of the bottom of the square support tube (51), and the detection probe (53) and the detection host (52) are connected via a wire. An alarm (54) is installed on the side of the top of the casing (1), and the alarm (54) and the detection host (52) are connected via a wire.

7. The multi-position adjustable exhaust gas detection collection device according to claim 6, characterized in that: The detection host (52) is installed at the side of the outer side of the casing (1), and the detection probe (53) is installed inside the collection box (2).

8. The multi-position adjustable exhaust gas detection collection device according to claim 1, characterized in that: An auxiliary component (6) is installed in the middle of the collection box (2), and the auxiliary component (6) comprises a square guide rod (61). The square guide rod (61) is slidably installed on the top of the collection box (2) and close to the semicircular cover (45). A pressure plate (62) is fixedly installed on the top of the square guide rod (61). A flat plate (63) is fixedly installed on the bottom of the square guide rod (61). A rectangular sheet (64) is fixedly installed on the side of the top of the flat plate (63). An elastic support ring (65) is fixedly installed between the bottom of the square guide rod (61) and the bottom of the inner cavity of the collection box (2). The elastic support ring (65) is installed directly below the square guide rod (61). A brush (66) is fixedly installed on the side of the outer side of the flat plate (63) and at one end away from the elastic support ring (65) through a frame.

9. The multi-position adjustable exhaust gas detection collection device according to claim 8, characterized in that: The square guide rod (61) is installed vertically, the pressure plate (62) is arc-shaped, and the pressure plate (62) is installed directly above the square guide rod (61).

10. The multi-position adjustable exhaust gas detection collection device according to claim 8, characterized in that: The rectangular sheets (64) are installed at an angle, and the rectangular sheets (64) are evenly distributed on the sides of the top of the flat plate (63).

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