A portable air exhaust gas monitoring device

Abstract

The present invention discloses a portable air exhaust gas monitoring device, which includes an air diversion mechanism, a VOCS monitor, and a clamping assembly. The top of the clamping assembly is mounted with a VOCS monitor for detecting VOCS in the air. The front end of the VOCS monitor is provided with an air diversion mechanism that automatically reduces the amount of air entering the air inlet end of the VOCS monitor under the action of a certain external wind force. The air diversion mechanism is provided with an air diversion component that automatically pops up and expands under the action of a certain external wind force to divert air to the air inlet end of the VOCS monitor, and a rebound component that automatically drives the air diversion component to pop up in a certain direction under the action of a certain external wind force. The present invention can automatically reduce the amount of air entering the VOCS monitor in a strong external wind environment, thereby avoiding the situation in which the air intake entering the VOCS monitor is too large and the detection accuracy of VOCS in the air is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of air exhaust gas detection, and in particular to a portable air exhaust gas monitoring device. Background Art

[0002] At present, with the development of industrialization, pollution leaks are prone to occur in chemical plants and petrochemical plants. When a leak occurs, it is impossible to quickly find the source of pollution, nor can the spread of the pollution be quickly predicted. If the pollution spreads to public areas such as residential areas, parks, and office buildings, if it is not quickly handled and predicted, it will cause some environmental incidents and complaints, and generate related negative news. The current traditional pollution control methods are lacking in prevention, timeliness, and accuracy. In order to quickly understand the source of pollution, portable air exhaust monitoring devices are currently used to trace the source of pollution and accurately locate the location of the pollution source.

[0003] After testing, the patent announcement number CN115902127B discloses a portable Internet of Things gas monitoring device, which relates to the field of gas monitoring technology. A portable Internet of Things gas monitoring device includes a shell, a circular through hole is symmetrically provided on one side of the shell, a sealing shell is fixedly connected to the inner wall of the shell, the sealing shell is connected to a first connecting pipe, a circular shell is fixedly connected to the inner bottom of the shell, the first connecting pipe is connected to the circular shell, an air filtering mechanism is provided in the circular shell, the circular shell is connected to a second connecting pipe, a gas monitor is fixedly connected to the inner wall of the shell, the gas monitor is connected to the second connecting pipe, a third connecting pipe is provided on the inner side of the shell, the lower end of the third connecting pipe is connected to the circular shell, a guide ring is fixedly provided on the upper part of the third connecting pipe, and a fourth connecting pipe is slidably connected to the middle part of the third connecting pipe. The present invention uses the fourth connecting pipe to move upward to monitor air at different heights, so as to avoid the gas monitoring device being able to monitor only low-lying air, which causes the device to be limited.

[0004] When an existing portable air exhaust gas monitoring device is installed on the roof of a vehicle and performs VOCS detection on the air in a walking manner, the portable air exhaust gas monitoring device can normally detect VOCS in the air when there is no wind or the external wind is relatively small. When the portable air exhaust gas monitoring device is in an environment with strong external wind, the air intake volume entering the VOCS monitoring device will be too large. When the air intake volume entering the VOCS monitoring device is too large, the detection accuracy of the VOCS monitoring device will be reduced. Therefore, a portable air exhaust gas monitoring device is designed. Summary of the Invention

[0005] In response to the defects or shortcomings of portable air exhaust gas monitoring devices, the purpose of the present invention is to provide a portable air exhaust gas monitoring device that can automatically reduce the amount of air entering the VOCS monitor in a strong external wind environment, thereby avoiding the situation in which the amount of air entering the VOCS monitor in a strong external wind environment is too large, resulting in a decrease in the detection accuracy of the VOCS in the air.

[0006] In order to achieve the above-mentioned object of the invention, the present invention adopts the following technical solutions:

[0007] The present invention provides a portable air exhaust gas monitoring device, comprising an air diversion mechanism, a VOCS monitor and a clamping assembly. The top of the clamping assembly is equipped with a VOCS monitor for detecting VOCS in the air, and the front end of the VOCS monitor is provided with an air diversion mechanism;

[0008] The air diversion mechanism is provided with an air diversion component and a rebound component, the air diversion mechanism is provided with a limiting component, the limiting component is provided with a shell, the shell is mounted on the top of the mounting block, and the mounting block is arranged at the front end of the clamping assembly, a movable plate is provided inside the shell, a limiting groove is provided on the outer wall of the movable plate, a first connecting post and a second connecting post are respectively installed at the center positions of the front end wall and the rear end wall of the movable plate, the other end of the first connecting post passes through the front end wall of the shell and extends to the outside to be connected with the air spoiler, the other end of the second connecting post passes through the rear end wall of the shell and extends to the outside to be connected with the limiting plate, the outer side of the outer wall of the second connecting post is sleeved with a second spring, and the second spring is located between the rear end wall of the movable plate and the inner rear end wall of the shell;

[0009] The air diversion assembly is provided with an L-shaped connecting plate, an elastic sheet is installed on one outer wall of the L-shaped connecting plate, and a first air diversion plate and a second air diversion plate are respectively installed on both sides of the outer wall of one side of the elastic sheet, and ventilation holes are opened on the surfaces of the first air diversion plate and the second air diversion plate. The bottom ends of the first air diversion plate and the second air diversion plate are respectively installed with positioning blocks, and the other ends of the positioning blocks are set in the positioning groove, and the positioning groove is opened on the top of the clamping assembly;

[0010] The rebound assembly is composed of a first spring, a guide column, a limit column and a buffer shock-absorbing sleeve. A limit column is provided on the circumferential outer wall at the bottom end of the guide column, and the other end of the limit column is provided in the limit groove. A buffer shock-absorbing sleeve is provided on the circumferential outer wall of the limit column. The top end of the guide column passes through the top end of the shell and extends to the outside of the shell and is connected to the L-shaped connecting plate. The outer side of the outer wall of the guide column is provided with a first spring, and the first spring is located between the shell and the L-shaped connecting plate.

[0011] Preferably, the upper and lower parts of the outer wall on one side of the movable plate are connected to the slider through connecting rods, the other end of the slider is installed on the slide rail, and the slider and the slide rail are slidably connected, and the slide rail is installed above and below the inner wall on one side of the shell.

[0012] Preferably, first grooves are provided above and below the surface of the first air diverter plate, and second grooves are provided above and below the surface of the second air diverter plate.

[0013] Preferably, a first connecting block is provided in the first groove, and a second connecting block is provided in the second groove. The first connecting block is movably connected to the first movable rod through a movable pin, the other end of the first movable rod is movably connected to the second movable rod through a movable pin, and the other end of the second movable rod is movably connected to the second connecting block through a movable pin.

[0014] Compared with the existing technology, one or more of the above technical solutions have the following beneficial effects:

[0015] 1. In the present invention, through the coordinated arrangement of a series of structures, when the device is installed on the roof and performs VOCS detection on the air in a walking manner, the VOCS monitor can normally detect the VOCS in the air in an environment with no external wind or relatively small external wind. When the device is in an environment with strong external wind due to changes in the external environment during the detection process, the external wind will cause a certain force to the air spoiler. The force exerted on the air spoiler will be transmitted to the movable plate through the first connecting column. After the movable plate is subjected to a certain force, it will cause a certain compression on the second spring. When the movable plate compresses the second spring to a certain position, the limit plate no longer plays a limiting role on the limit column. The limit column will move out of the limit groove and move upward under the action of the rebound of the first spring. While the limit column moves upward, it will drive the air diversion component to move upward through the guide column. When the air diversion component When the positioning block on the upper portion is moved out of the positioning groove on the clamping assembly, the first air diverter plate and the second air diverter plate on the air diverter assembly will expand and form a certain angle between the first air diverter plate and the second air diverter plate under the action of the elastic sheet rebounding. After the first air diverter plate and the second air diverter plate continue to move upward to a certain horizontal height, the end wall of one end of the first air diverter plate and the second air diverter plate fits with the front end wall of the VOCS monitor. At this time, the first air diverter plate and the second air diverter plate will divert the air entering the air inlet end of the VOCS monitor, reducing the air volume entering the air inlet end of the VOCS monitor. Therefore, the present invention can automatically reduce the air intake volume entering the VOCS monitor in an external strong wind environment, avoiding the situation where the air intake volume entering the VOCS monitor in an external strong wind environment is too large, resulting in a decrease in the VOCS detection accuracy in the air.

[0016] 2. In the present invention, by coordinating the first air diverter plate, the second air diverter plate and other structures, when the end walls of one end of the first air diverter plate and the second air diverter plate are in contact with the front end wall of the VOCS monitor, the wind force exerted on the VOCS monitor is reduced by the cooperation of the first air diverter plate and the second air diverter plate, thereby avoiding the occurrence of poor stability of the VOCS monitor due to strong external wind conditions.

[0017] 3. In the present invention, through the setting of the buffer and shock-absorbing sleeve, when the limit column moves upward, the buffer and shock-absorbing sleeve on the circumferential outer wall of the limit column will first contact the top end of the inner shell. When the buffer and shock-absorbing sleeve contacts the top end of the inner shell and generates a certain force, the buffer and shock-absorbing sleeve can play a role of buffering and shock absorption, avoiding the first spring from being in a compressed rebound state for a long time. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings, which constitute a part of the present invention, are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations on the present invention.

[0019] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the present invention.

[0020] Figure 2 It is a structural schematic diagram of the air diversion mechanism of the present invention in the first working state.

[0021] Figure 3 It is a structural schematic diagram of the second working state of the air diversion mechanism of the present invention.

[0022] Figure 4 This is a schematic diagram of the cross-sectional structure of the connection structure between the rebound component and the limit component of the present invention. Figure 1 .

[0023] Figure 5 This is a schematic diagram of the cross-sectional structure of the connection structure between the rebound component and the limit component of the present invention. Figure 2 .

[0024] Figure 6 This invention Figure 4 Schematic diagram of the structure with the shell removed Figure 1 .

[0025] Figure 7 This invention Figure 4 Schematic diagram of the structure with the shell removed Figure 2 .

[0026] Figure 8 It is a structural schematic diagram of the movable plate of the present invention.

[0027] Figure 9It is a cross-sectional view of the housing of the present invention.

[0028] Figure 10 It is a structural schematic diagram of the air diversion component of the present invention.

[0029] Figure 11 This invention Figure 10 Schematic diagram of the local enlarged structure at point A in the figure.

[0030] In the picture:

[0031] 100, air diversion mechanism; 110, rebound assembly; 120, limit assembly; 130, mounting block; 140, air diversion assembly;

[0032] 111. First spring; 112. Guide column; 113. Limit column; 114. Buffer and shock-absorbing sleeve;

[0033] 121, first connecting column; 122, air spoiler; 123, movable plate; 1231, connecting rod; 1232, slider; 1233, limiting groove; 124, housing; 1241, slide rail; 125, second spring; 126, limiting plate; 127, second connecting column;

[0034] 141, L-shaped connecting plate; 142, first air diverter plate; 1421, first groove; 1422, ventilation hole; 1423, first connecting block; 143, first movable rod; 144, elastic piece; 145, second movable rod; 146, second air diverter plate; 1461, second groove; 1462, second connecting block; 147, positioning block;

[0035] 200, VOCS monitor;

[0036] 300. Clamping assembly. DETAILED DESCRIPTION

[0037] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0038] It should be noted that the following detailed descriptions are exemplary and intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which the present invention belongs.

[0039] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present invention. As used herein, unless the context clearly indicates otherwise, the singular form is intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components and / or combinations thereof.

[0040] like Figure 1-11 As shown, a portable air exhaust gas monitoring device includes an air diversion mechanism 100, a VOCS monitor 200, and a clamping assembly 300. The top of the clamping assembly 300 is mounted with the VOCS monitor 200 for detecting VOCS in the air. The front end of the VOCS monitor 200 is provided with the air diversion mechanism 100, which automatically reduces the air intake volume entering the air inlet end of the VOCS monitor 200 under a certain external wind force. The clamping assembly 300 is set so that a worker can fix the device to the roof rail of a car through the clamping assembly 300, so that the device can be installed on the roof and perform VOCS detection in the air in a mobile manner.

[0041] The air diversion mechanism 100 is provided with an air diversion component 140 that automatically pops up and expands to divert air to the air inlet end of the VOCS monitor 200 under the action of a certain external wind force, and a rebound component 110 that automatically drives the air diversion component 140 to pop up in a certain direction under the action of a certain external wind force. The air diversion mechanism 100 is provided with a limiting component 120 that automatically releases the limit on the rebound component 110 under the action of a certain external wind force.

[0042] A shell 124 is provided on the limiting assembly 120, and the shell 124 is installed on the top of the mounting block 130, and the mounting block 130 is provided at the front end of the clamping assembly 300. A movable plate 123 is provided inside the shell 124, and a limiting groove 1233 is provided on the outer wall of the movable plate 123. The first connecting column 121 and the second connecting column 127 are respectively installed at the center position of the front end wall and the rear end wall of the movable plate 123.

[0043] The other end of the first connecting column 121 passes through the front end wall of the shell 124 and extends to the outside to be connected with the air spoiler 122. The setting of the air spoiler 122 will generate a certain force between the air spoiler 122 and the flowing air during the driving of the vehicle. After the air spoiler 122 is subjected to a certain force, the force will be transmitted to the movable plate 123 through the first connecting column 121. The other end of the second connecting column 127 passes through the rear end wall of the shell 124 and extends to the outside to be connected with the limiting plate 126. The setting of the limiting plate 126 mainly serves to limit the movement of the second connecting column 127. A second spring 125 is sleeved on the outside of the outer wall of the second connecting column 127, and the second spring 125 is located between the rear end wall of the movable plate 123 and the inner rear end wall of the shell 124.

[0044] The upper and lower parts of the outer wall on one side of the movable plate 123 are connected to the slider 1232 through a connecting rod 1231. The other end of the slider 1232 is installed on the slide rail 1241, and the slider 1232 and the slide rail 1241 are slidably connected. The slide rail 1241 is installed above and below the inner wall on one side of the shell 124. The coordinated setting of the slider 1232 and the slide rail 1241 can play a role in limiting and guiding the movement of the movable plate 123, thereby enhancing the stability of the movable plate 123 during movement.

[0045] The air diversion assembly 140 is provided with an L-shaped connecting plate 141, and an elastic sheet 144 is installed on one side of the outer wall of the L-shaped connecting plate 141. The first air diverter plate 142 and the second air diverter plate 146 are respectively installed on both sides of the outer wall of the elastic sheet 144. The setting of the elastic sheet 144 can expand the first air diverter plate 142 and the second air diverter plate 146 under the action of the elastic force of the elastic sheet 144 itself and form a certain angle between them. The elastic sheet 144, the first air diverter plate 142 and the second air diverter plate 146 form a V shape, which can adjust the flow of air. For diversion, ventilation holes 1422 are provided on the surfaces of the first air diverter plate 142 and the second air diverter plate 146. The arrangement of the ventilation holes 1422 allows external air to enter the air inlet of the VOCS monitor 200 through the ventilation holes 1422 when the first air diverter plate 142 and the second air diverter plate 146 reduce the air volume at the air inlet of the VOCS monitor 200. First grooves 1421 are provided above and below the surface of the first air diverter plate 142, and second grooves 1461 are provided above and below the surface of the second air diverter plate 146.

[0046] A first connecting block 1423 is provided in the first groove 1421, and a second connecting block 1462 is provided in the second groove 1461. The first connecting block 1423 is movably connected to the first movable rod 143 through a movable pin, and the other end of the first movable rod 143 is movably connected to the second movable rod 145 through a movable pin, and the other end of the second movable rod 145 is movably connected to the second connecting block 1462 through a movable pin. With the cooperation of the first groove 1421, the second groove 1461, the first movable rod 143, the second movable rod 145, the first connecting block 1423, the second connecting block 1462 and other structures, the angle expanded between the first air diverter plate 142 and the second air diverter plate 146 can be limited.

[0047] A positioning block 147 is installed at the bottom end of the first air diverter plate 142 and the second air diverter plate 146. The other end of the positioning block 147 is set in the positioning groove, and the positioning groove is opened at the top of the clamping assembly 300. The coordination of the positioning block 147 and the positioning groove can play a role in limiting the first air diverter plate 142 and the second air diverter plate 146 in the combined state.

[0048] The rebound assembly 110 is composed of a first spring 111, a guide column 112, a limiting column 113 and a buffer shock-absorbing sleeve 114. A limiting column 113 is provided on the circumferential outer wall at the bottom end of the guide column 112, and the other end of the limiting column 113 is provided in the limiting groove 1233. A buffer shock-absorbing sleeve 114 is provided on the circumferential outer wall of the limiting column 113. Through the setting of the buffer shock-absorbing sleeve 114, when the limiting column 113 moves upward, the buffer shock-absorbing sleeve 114 on the circumferential outer wall of the limiting column 113 will first contact with the inner wall of the shell 124. The top of the guide column 112 is in contact with the top of the shell 124. When the buffer and shock-absorbing sleeve 114 contacts the top of the inner part of the shell 124 and generates a certain force, the buffer and shock-absorbing sleeve 114 can play a role of buffering and shock absorption, avoiding the first spring 111 from being in a compressed rebound state for a long time. The top of the guide column 112 passes through the top of the shell 124 and extends to the outside of the shell 124 and is connected to the L-shaped connecting plate 141. The first spring 111 is sleeved on the outer side of the outer wall of the guide column 112, and the first spring 111 is located between the shell 124 and the L-shaped connecting plate 141.

[0049] Working principle: When in use, when the device is installed on the roof and performs VOCS detection on the air in a walking manner, the VOCS monitor 200 can normally detect the VOCS in the air in an environment with no wind or relatively low external wind. When the device is in an environment with strong external wind due to changes in the external environment during the detection process, the external wind will cause a certain force to be applied to the air spoiler 122. The force applied to the air spoiler 122 will be transmitted to the movable plate 123 through the first connecting column 121. After being subjected to a certain force, the movable plate 123 will cause a certain amount of compression on the second spring 125. When the movable plate 123 compresses the second spring 125 to a certain position, the limiting plate 126 no longer limits the limiting column 113, and the limiting column 113 moves out of the limiting groove 1233 and moves upward under the action of the rebound of the first spring 111. When the limiting column 113 moves upward, it will drive the air diversion component 140 to move upward through the guide column 112. When the positioning block 147 on the air diversion component 140 moves out of the positioning groove on the clamping component 300, the first air diversion plate 142 and the second air diversion plate 146 on the air diversion component 140 will make the first air diversion plate 142 and the second air diversion plate 146 on the air diversion component 140 move out of the positioning groove on the clamping component 300 under the action of the rebound of the elastic sheet 144. The first air diverter plate 142 and the second air diverter plate 146 are unfolded and form a certain angle. After the first air diverter plate 142 and the second air diverter plate 146 continue to move upward to a certain horizontal height, the end wall of one end of the first air diverter plate 142 and the second air diverter plate 146 fits with the front end wall of the VOCS monitor 200. At this time, the first air diverter plate 142 and the second air diverter plate 146 will divert the air entering the air inlet end of the VOCS monitor 200, reducing the air volume entering the air inlet end of the VOCS monitor 200, so that the present invention can automatically reduce the wind speed in a strong wind environment. The amount of air entering the VOCS monitor 200 prevents a decrease in VOCS detection accuracy in the air due to excessive air entering the VOCS monitor 200 in a strong external wind environment. When the end walls of the first air diverter plate 142 and the second air diverter plate 146 are in contact with the front end wall of the VOCS monitor 200, the first air diverter plate 142 and the second air diverter plate 146 cooperate to reduce the wind force on the VOCS monitor 200, thereby preventing the VOCS monitor 200 from having poor stability in a strong external wind environment.

[0050] The foregoing description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that various modifications and variations of the present invention are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A portable air exhaust monitoring device, comprising an air diversion mechanism (100), a VOCS monitor (200) and a clamping assembly (300), characterized in that: A VOCS monitor (200) for detecting VOCS in the air is installed at the top end of the clamping assembly (300), and an air diversion mechanism (100) is provided at the front end of the VOCS monitor (200); The air diversion mechanism (100) is provided with an air diversion component (140) and a rebound component (110), the air diversion mechanism (100) is provided with a limit component (120), the limit component (120) is provided with a shell (124), the shell (124) is installed on the top of the mounting block (130), and the mounting block (130) is provided at the front end of the clamping component (300), the shell (124) is provided with a movable plate (123) inside, the outer wall of the movable plate (123) is provided with a limit groove (1233), the front end of the movable plate (123) is provided with a limit groove (1233), and the front end of the movable plate (123) is provided with a limit groove (1233). A first connecting column (121) and a second connecting column (127) are respectively installed at the center positions of the front wall and the rear end wall of the housing (124); the other end of the first connecting column (121) penetrates the front end wall of the housing (124) and extends to the outside to be connected to the air spoiler (122); the other end of the second connecting column (127) penetrates the rear end wall of the housing (124) and extends to the outside to be connected to the limit plate (126); a second spring (125) is sleeved on the outer side of the outer wall of the second connecting column (127), and the second spring (125) is located between the rear end wall of the movable plate (123) and the inner rear end wall of the housing (124); An L-shaped connecting plate (141) is provided on the air diversion assembly (140), an elastic sheet (144) is installed on one side outer wall of the L-shaped connecting plate (141), a first air diversion plate (142) and a second air diversion plate (146) are respectively installed on both sides of the one side outer wall of the elastic sheet (144), ventilation holes (1422) are provided on the surfaces of the first air diversion plate (142) and the second air diversion plate (146), a positioning block (147) is installed at the bottom end of the first air diversion plate (142) and the second air diversion plate (146), the other end of the positioning block (147) is arranged in a positioning groove, and the positioning groove is provided at the top of the clamping assembly (300); The rebound assembly (110) is composed of a first spring (111), a guide column (112), a limiting column (113) and a buffer shock-absorbing sleeve (114). A limiting column (113) is provided on the circumferential outer wall at the bottom end of the guide column (112), and the other end of the limiting column (113) is provided in the limiting groove (1233). A buffer shock-absorbing sleeve (114) is provided on the circumferential outer wall of the limiting column (113). The top end of the guide column (112) passes through the top end of the shell (124) and extends to the outside of the shell (124) to be connected to the L-shaped connecting plate (141). The outer side of the outer wall of the guide column (112) is provided with a first spring (111), and the first spring (111) is located between the shell (124) and the L-shaped connecting plate (141).

2. The portable air exhaust monitoring device according to claim 1, characterized in that: The upper and lower parts of the outer wall of one side of the movable plate (123) are connected to the slider (1232) via a connecting rod (1231). The other end of the slider (1232) is mounted on a slide rail (1241). The slider (1232) and the slide rail (1241) are in sliding connection. The slide rail (1241) is mounted above and below the inner wall of one side of the housing (124).

3. The portable air exhaust monitoring device according to claim 1, characterized in that: A first groove (1421) is provided above and below the surface of the first air splitter plate (142), and a second groove (1461) is provided above and below the surface of the second air splitter plate (146).

4. The portable air exhaust monitoring device according to claim 3, characterized in that: A first connecting block (1423) is provided in the first groove (1421), and a second connecting block (1462) is provided in the second groove (1461). The first connecting block (1423) is movably connected to the first movable rod (143) via a movable pin, the other end of the first movable rod (143) is movably connected to the second movable rod (145) via a movable pin, and the other end of the second movable rod (145) is movably connected to the second connecting block (1462) via a movable pin.

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