An exhaust gas storage device for exhaust gas detection

Abstract

The utility model discloses a kind of waste gas storage devices for waste gas detection, it is related to waste gas detection technical field, to solve current detection operation is complicated, time-consuming, the technical problem of low efficiency, including installation mechanism and the gas storage mechanism and detection mechanism being set on installation mechanism, the installation mechanism includes base disc and the rotary disc being rotatably installed on base disc, the rotary disc is arrayed and is provided with the placement cylinder for fixed gas storage mechanism, the gas storage mechanism includes gas cylinder and sealing unit, the sealing unit includes sealing plate, piston rod and extrusion plate, the detection mechanism includes the mounting plate being set on rotary disc, the mounting plate is provided with the detection tube for detection, the detection mechanism further includes the closure plate of fitting gas cylinder and the positioning rod of extrusion plate pressure application. The utility model integration design can batch store waste gas sample, rotary switch automatic docking detection, save cumbersome operation, greatly improve detection efficiency, adapt the advantage of continuous detection.

Description

Technical Field

[0001] This utility model relates to the field of exhaust gas detection technology, and more specifically, to an exhaust gas storage device for exhaust gas detection. Background Technology

[0002] Waste gas testing is a specialized field that uses professional technical means to sample, analyze, and monitor gaseous pollutants emitted from industrial production, transportation, and daily life activities. It is a fundamental aspect of air pollution prevention and control and a crucial barrier to protect the ecological environment and human health. The core targets of testing cover various hazardous pollutants, including particulate matter (PM2.5, PM10), gaseous pollutants (sulfur dioxide, nitrogen oxides, volatile organic compounds (VOCs), carbon monoxide, ozone, etc.), as well as special pollutants such as odorous gases and heavy metal emissions.

[0003] After sampling the exhaust gas, it needs to be stored in a gas storage cylinder before testing. Currently, exhaust gas testing requires connecting the gas to the detector via a pipeline, which involves opening valves. This cumbersome and time-consuming process reduces the efficiency of exhaust gas testing. Therefore, we propose an exhaust gas storage device for exhaust gas testing. Utility Model Content

[0004] The purpose of this utility model is to overcome the shortcomings of the existing technology, adapt to the needs of reality, and provide a waste gas storage device for waste gas detection, so as to solve the technical problems of cumbersome, time-consuming and inefficient current detection operations.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a waste gas storage device for waste gas detection, comprising an installation mechanism and a gas storage mechanism and a detection mechanism disposed on the installation mechanism. The installation mechanism includes a base plate and a rotating disk rotatably mounted on the base plate. The rotating disk is arrayed with placement cylinders for fixing the gas storage mechanism. The gas storage mechanism includes a gas storage bottle and a sealing unit. The sealing unit includes a sealing plate, a piston rod, and a pressing plate. The detection mechanism includes an installation plate disposed on the rotating disk. The installation plate is provided with a detection tube for detection. The detection mechanism also includes a closing plate that fits against the gas storage bottle and a positioning rod that applies pressure to the pressing plate.

[0006] Preferably, the placement cylinder is cylindrical, and an integral rectangular portion is provided on the placement cylinder. The gas storage bottle is located inside the placement cylinder, and a positioning block is provided on the outer surface of the gas storage bottle, with the positioning block located inside the rectangular portion.

[0007] Preferably, the outer surface of the gas storage bottle is provided with an air outlet, and the sealing plate includes an upwardly curved sealing part along its long axis, the sealing part being fitted to the air outlet on the inner wall of the gas storage bottle.

[0008] Preferably, a first elastic element is provided between the sealing plate and the inner wall of the top of the gas storage bottle, a piston hole is opened at the top of the gas storage bottle, the piston rod extends out of the gas storage bottle from the piston hole, and the compression plate is provided at the top of the piston rod.

[0009] Preferably, the extrusion plate is arc-shaped along its long axis, the height of the extrusion plate gradually decreases from the middle to both ends, the cross-section of the extrusion plate is U-shaped, and a spherical groove is formed at the middle position of the extrusion plate.

[0010] Preferably, the end of the detection tube is provided with a flexible tube, the end of the flexible tube is provided with a connecting tube, a second elastic element is provided between the connecting tube and the mounting plate, the first elastic element and the second elastic element both include a spring and a telescopic rod, the closing plate is provided at the end of the connecting tube, the front of the closing plate has a hole communicating with the connecting tube, the closing plate includes an arc-shaped fitting part and guide parts provided at both ends of the fitting part, the guide parts are bent outward in an arc shape.

[0011] Preferably, the fitting part is provided with a mounting part, the positioning rod is provided on the mounting part, the positioning rod includes a telescopic part and a positioning part in sequence along the long axis, and the end of the positioning part is provided with a ball bearing.

[0012] Compared with the prior art, the beneficial effects of this utility model are: 1. This utility model integrates the installation mechanism, gas storage mechanism, and detection mechanism into a single design through the design of a rotating disk and placement cylinder structure. Multiple placement cylinders are arranged in an array of rotating disks, which can simultaneously fix multiple gas storage cylinders to achieve batch sample storage. During detection, only rotating the rotating disk is required. The precise cooperation between the positioning rod and the squeezing plate will automatically trigger the opening of the sealing plate, allowing the waste gas in the gas storage cylinder to be directly introduced into the detection tube through the connecting pipe and hose. There is no need for additional manual connection of pipes or opening of valves, which eliminates the cumbersome docking steps in traditional detection and greatly shortens the preparation time for single sample detection. It is especially suitable for continuous detection of multiple batches of waste gas samples, significantly improving detection efficiency and solving the problems of cumbersome, time-consuming, and inefficient current detection operations.

[0013] 2. This utility model also features a closed plate structure. The arc-shaped fitting part of the closed plate can fit tightly against the outer wall of the gas storage bottle. When the exhaust gas is discharged, it can effectively seal the gaps around the exhaust port to prevent exhaust gas leakage and ensure the purity and accuracy of the test samples. The arc-shaped guide parts at both ends of the fitting part can guide the gas storage bottle to smoothly enter the fitting position during the rotation and docking process, avoiding jamming and improving the efficiency of station switching. The closed plate has a hole on the front that connects to the connecting pipe, which can realize the precise docking of the gas storage bottle's exhaust port and the testing mechanism's pipeline, providing a stable delivery channel for exhaust gas without the need for additional manual adjustment of the pipeline position. At the same time, the closed plate is fixedly connected to the connecting pipe and can move flexibly with the connecting pipe under the action of the second elastic element. This ensures both tightness with the gas storage bottle and synchronous reset with the connecting pipe after the test, preparing for the next test and adapting to the needs of multiple batches of continuous testing.

[0014] 3. The utility model also incorporates a compression plate structure. The compression plate is arc-shaped along its long axis, with its height gradually decreasing from the middle to both ends. This design guides the positioning rod smoothly into the compression area, preventing jamming during docking. The U-shaped cross-section limits the positioning rod, preventing it from shifting and ensuring precise pressure application. The spherical groove in the middle adapts to the end structure of the positioning rod, achieving docking and preventing pressure deviation that could hinder the opening of the sealing unit. The telescopic part along the long axis of the positioning rod allows for flexible length adjustment, accommodating changes in the closing plate or compression plate position, ensuring continuous and stable pressure application. The ball bearings at the end convert sliding friction with the compression plate into rolling friction, significantly reducing contact friction and making the pressure application process smoother. This reduces component wear and extends service life. The entire assembly is fixedly connected to the closing plate mounting part and can move synchronously with the closing plate, ensuring precise alignment of the compression plate position during gas cylinder docking without additional manual adjustment. This automates the testing process and improves testing efficiency. Attached Figure Description

[0015] Figure 1 This is a front view structural diagram of the present utility model; Figure 2 This is a partial front view schematic diagram of the structure of this utility model; Figure 3 This is a schematic diagram of the detection mechanism structure of this utility model; Figure 4 This is a schematic diagram of the gas storage mechanism of this utility model; Figure 5 This is a schematic diagram of the sealing unit structure of this utility model; Figure 6 This is a top view of the sealing unit structure of this utility model; Figure 7 This is a schematic diagram of one usage state of the present invention.

[0016] The following are the labeling instructions in the diagram: 100, Installation mechanism; 101, Base plate; 102, Rotating plate; 103, Placement cylinder; 1031, Rectangular part; 200, Gas storage mechanism; 201, Gas storage bottle; 2011, Positioning block; 2012, Gas outlet; 202, Sealing plate; 2021, Sealing part; 203, First elastic element; 204, Piston rod; 205, Extrusion plate; 2051, Spherical groove; 300, Detection mechanism; 301, Mounting plate; 302, Detection tube; 303, Hose; 304, Connecting tube; 305, Second elastic element; 306, Closing plate; 3061, Fitting part; 3062, Guide part; 3063, Mounting part; 307, Positioning rod; 3071, Telescopic part; 3072, Positioning part. Detailed Implementation

[0017] like Figures 1 to 7 As shown, this utility model relates to an exhaust gas storage device for exhaust gas detection, including an installation mechanism 100 and an exhaust gas storage mechanism 200 and a detection mechanism 300 disposed on the installation mechanism 100. The installation mechanism 100 includes a base plate 101 and a rotating plate 102 rotatably mounted on the base plate 101. The rotating plate 102 is arranged in an array of placement cylinders 103 for fixing the exhaust gas storage mechanism 200. The exhaust gas storage mechanism 200 includes an exhaust gas cylinder 201 and a sealing unit. The sealing unit includes a sealing plate 202, a piston rod 204 and a compression plate 205. The detection mechanism 300 includes an installation plate 301 disposed on the rotating plate 102. The installation plate 301 is provided with a detection tube 302 for detection. The detection mechanism 300 also includes a closing plate 306 that fits against the exhaust gas cylinder 201 and a positioning rod 307 that applies pressure to the compression plate 205. This utility model features an integrated design that allows for batch storage of waste gas samples. It can be automatically connected for testing by rotating the switch, eliminating cumbersome operations and significantly improving testing efficiency. The sealed structure prevents leakage and ensures sample purity, while the guiding and flexible design ensures smooth connection and durable components, making it suitable for continuous testing of multiple batches.

[0018] Specifically, the placement cylinder 103 is cylindrical, and an integral rectangular portion 1031 is provided on the placement cylinder 103. The gas storage cylinder 201 is located inside the placement cylinder 103, and a positioning block 2011 is provided on the outer surface of the gas storage cylinder 201, which is located inside the rectangular portion 1031. The cylindrical structure of the placement cylinder 103 and the shape of the gas storage cylinder 201 are adapted to improve the fit and fixation stability. The integrally formed rectangular portion 1031 provides limiting space for the positioning block 2011. The positioning block 2011 cooperates with the rectangular portion 1031 to prevent the gas storage cylinder 201 from rotating inside the placement cylinder 103, ensuring that the connection position between the gas outlet 2012 and the detection mechanism 300 is accurate, and avoiding waste gas leakage or poor delivery.

[0019] Furthermore, the outer surface of the gas storage cylinder 201 is provided with a vent 2012, and the sealing plate 202 includes an upwardly curved sealing part 2021 along its long axis. The sealing part 2021 is fitted to the vent 2012 on the inner wall of the gas storage cylinder 201. The vent 2012 is the only channel for exhaust gas to exit from the gas storage cylinder 201. The curved design of the sealing part 2021 fits against the curved surface of the inner wall of the gas storage cylinder 201 to increase the sealing contact area. Moreover, the sealing part 2021 is made of elastic material, which improves the sealing effect and can effectively prevent exhaust gas leakage during storage, ensuring the purity and accuracy of the test samples.

[0020] Furthermore, a first elastic element 203 is provided between the sealing plate 202 and the inner top wall of the gas cylinder 201. A piston hole is opened at the top of the gas cylinder 201, and a piston rod 204 extends out of the gas cylinder 201 from the piston hole. A compression plate 205 is located at the top of the piston rod 204. The first elastic element 203 pushes the sealing plate 202 to always fit against the vent 2012 to maintain a normal sealing state through its own elastic force. The piston hole provides a channel for the piston rod 204 to move smoothly up and down. The piston rod 204 plays a force transmission role, transmitting the pressure on the compression plate 205 to the sealing plate 202. The compression plate 205, as a force-bearing component, bears the pressure of the positioning rod 307 and provides power for opening the sealing unit.

[0021] It is worth noting that the extrusion plate 205 is arc-shaped along its long axis, and its height gradually decreases from the middle to both ends. The cross-section of the extrusion plate 205 is U-shaped, and a spherical groove 2051 is provided at the middle position of the extrusion plate 205. The arc shape and gradual height change design allow the extrusion plate 205 to precisely fit with the ball bearings of the positioning rod 307, facilitating concentrated pressure transmission. The U-shaped cross-section ensures the position of the positioning rod 307 and prevents it from shifting. The gradual decrease in height at both ends of the extrusion plate 205 allows the positioning rod 307 to smoothly enter the extrusion plate 205. The ball bearings at the end of the positioning rod 307 reduce friction during contact extrusion, making the pressure application process of the positioning rod 307 on the extrusion plate 205 smoother. The spherical groove 2051 cooperates with the positioning rod 307 for positioning, ensuring stability during docking.

[0022] It is worth mentioning that a flexible tube 303 is provided at the end of the detection tube 302, and a connecting tube 304 is provided at the end of the flexible tube 303. A second elastic element 305 is provided between the connecting tube 304 and the mounting plate 301. Both the first elastic element 203 and the second elastic element 305 include a spring and a telescopic rod. A closing plate 306 is provided at the end of the connecting tube 304. The front of the closing plate 306 has a hole communicating with the connecting tube 304. The closing plate 306 includes an arc-shaped fitting part 3061 and guide parts 3062 provided at both ends of the fitting part 3061. The guide parts 3062 are bent outward in an arc shape. The flexible hose 303 is flexible and bendable, adapting to the position adjustment of the connecting pipe 304 and preventing damage from pipe pulling. The connecting pipe 304 serves as a transfer and transport mechanism for exhaust gas. During exhaust gas detection, rotating the rotating disk 102 causes the outlet 2012 to align with the closing plate 306. The second elastic element 305 pushes the connecting pipe 304 and the closing plate 306 against the surface of the gas storage bottle 201 through elastic force. When the compression plate 205 is compressed and descends, the fitting part 3061 fits against the outlet 2012 to prevent gas leakage. When the middle of the fitting part 3061 aligns with the outlet 2012... When connected, the ball bearing at the end of the positioning rod 307 can be positioned in the spherical groove 2051. The outwardly curved arc guide 3062 can guide the gas storage bottle 201 to smoothly enter the fitting position, avoiding jamming and improving the efficiency of workstation switching. When the middle of the fitting part 3061 is connected with the air outlet 2012, the sealing plate 202 can be lowered to open the air outlet 2012. The waste in the gas storage bottle 201 can be discharged into the connecting pipe 304 and discharged from the detection pipe 302. Connecting the detection pipe 302 to the exhaust gas detector allows for rapid exhaust gas detection.

[0023] It is worth noting that the fitting part 3061 is provided with a mounting part 3063, and the positioning rod 307 is provided on the mounting part 3063. The positioning rod 307 includes a telescopic part 3071 and a positioning part 3072 along its long axis. The end of the positioning part 3072 is provided with a ball bearing. The telescopic part 3071 can ensure the position of the positioning rod 307. When the closing plate 306 is subjected to pressure and moves outward, the positioning part 3072 can be stably located inside the extrusion plate 205 and can flexibly extend and retract. The positioning part 3072 plays a role in positioning and force transmission. The ball bearing at the end converts sliding friction into rolling friction, which greatly reduces the friction between the positioning rod 307 and the extrusion plate 205, allowing the positioning rod 307 to smoothly apply pressure to the extrusion plate 205, while avoiding component wear and extending service life.

[0024] Working Principle: This embodiment provides a waste gas storage device for waste gas detection. In use, the waste gas storage cylinder 201 is first placed into the placement cylinders 103 arrayed on the rotating disk 102. The positioning block 2011 on the outer surface of the storage cylinder 201 is embedded in the rectangular portion 1031 of the placement cylinder 103, achieving precise positioning and fixation of the storage cylinder 201 to prevent rotation or displacement during subsequent operations. Under the elastic force of the first elastic element 203, the sealing plate 202 inside the storage cylinder 201 has its arc-shaped sealing portion 2021 tightly fitted against the vent hole 2012 on the inner wall of the storage cylinder 201, ensuring that the waste gas does not leak during storage. Then, the rotating disk 102 on the base disk 101 is rotated to rotate the waste gas storage cylinder 201 to... At the location of the testing mechanism 300, during rotation, the outer wall of the gas cylinder 201 first contacts the arc-shaped guide portions 3062 that bend outwards at both ends of the closing plate 306. The guide portions 3062 guide the gas cylinder 201 to move smoothly to the corresponding position of the fitting portion 3061. As the rotating disk 102 continues to rotate, the gas cylinder 201 squeezes the closing plate 306. The closing plate 306 drives the connecting pipe 304 to move closer to the mounting plate 301. The second elastic element 305 between the connecting pipe 304 and the mounting plate 301 is compressed. At the same time, the fitting portion 3061 gradually fits the outer wall of the gas cylinder 201. When the gas outlet 2012 of the gas cylinder 201 aligns with the hole on the front of the closing plate 306, the positioning rod 307 on the mounting portion 3063 is exactly aligned. The position of the extrusion plate 205 is such that the ball bearing at the end of the positioning rod 307 engages with the spherical groove 2051 in the middle of the extrusion plate 205, achieving positioning and fixation. During the docking process, the positioning rod 307 enters the extrusion plate 205. The position of the positioning rod 307 is ensured by the extension and retraction adjustment of the telescopic part 3071. As the rotating disk 102 rotates, the positioning part 3072 applies downward pressure to the extrusion plate 205. The extrusion plate 205 transmits the pressure to the sealing plate 202 through the piston rod 204, pushing the sealing plate 202 to move downward against the elastic force of the first elastic element 203. The arc-shaped sealing part 2021 separates from the vent 2012, the vent 2012 is opened, and the waste gas in the gas storage bottle 201 enters the closing plate through the vent 2012. The gas flows through the connecting pipe 304 and the hose 303 in the hole 306, and finally exits from the detection pipe 302. Connecting the detection pipe 302 to the exhaust gas detector completes the rapid detection of exhaust gas. After the detection is completed, continue to rotate the rotating disk 102. The gas storage bottle 201 separates from the closing plate 306. The second elastic element 305 returns to its original state and drives the connecting pipe 304 and the closing plate 306 to reset. The pressure of the positioning rod 307 on the squeezing plate 205 disappears. The first elastic element 203 pushes the sealing plate 202 to reset. The arc-shaped sealing part 2021 fits the air outlet 2012 again to achieve a seal. When detecting multiple samples, the above operation can be repeated. By rotating the rotating disk 102 to switch different gas storage bottles 201 for continuous detection, the efficiency of exhaust gas detection can be effectively improved.

[0025] The embodiments disclosed herein are preferred embodiments, but are not limited thereto. Those skilled in the art can readily grasp the spirit of this utility model based on the above embodiments and make different extensions and variations. However, as long as they do not depart from the spirit of this utility model, they are all within the protection scope of this utility model.

Claims

1. A waste gas storage device for waste gas detection, characterized in that, The device includes an installation mechanism (100) and a gas storage mechanism (200) and a detection mechanism (300) provided on the installation mechanism (100). The installation mechanism (100) includes a base plate (101) and a rotating plate (102) rotatably mounted on the base plate (101). The rotating plate (102) is provided with an array of placement cylinders (103) for fixing the gas storage mechanism (200). The gas storage mechanism (200) includes a gas cylinder (201) and a sealing unit. The sealing unit includes a sealing plate (202), a piston rod (204), and a pressing plate (205). The detection mechanism (300) includes an installation plate (301) provided on the rotating plate (102). The installation plate (301) is provided with a detection tube (302) for detection. The detection mechanism (300) also includes a closing plate (306) that fits against the gas cylinder (201) and a positioning rod (307) that applies pressure to the pressing plate (205).

2. The waste gas storage device for waste gas detection according to claim 1, characterized in that, The placement cylinder (103) is cylindrical, and a rectangular portion (1031) is provided on the placement cylinder (103). The gas storage bottle (201) is located inside the placement cylinder (103). A positioning block (2011) is provided on the outer surface of the gas storage bottle (201), and the positioning block (2011) is located inside the rectangular portion (1031).

3. The waste gas storage device for waste gas detection according to claim 2, characterized in that, The gas cylinder (201) has an air outlet (2012) on its outer surface. The sealing plate (202) includes an upwardly curved sealing part (2021) along its long axis. The sealing part (2021) is attached to the air outlet (2012) on the inner wall of the gas cylinder (201).

4. The waste gas storage device for waste gas detection according to claim 3, characterized in that, A first elastic element (203) is provided between the sealing plate (202) and the inner wall of the top of the gas storage bottle (201). A piston hole is provided at the top of the gas storage bottle (201). The piston rod (204) extends out of the gas storage bottle (201) from the piston hole. The extrusion plate (205) is provided at the top of the piston rod (204).

5. The waste gas storage device for waste gas detection according to claim 4, characterized in that, The extrusion plate (205) is arc-shaped along its long axis. The height of the extrusion plate (205) gradually decreases from the middle to both ends. The cross-section of the extrusion plate (205) is U-shaped. A spherical groove (2051) is provided at the middle position of the extrusion plate (205).

6. The waste gas storage device for waste gas detection according to claim 5, characterized in that, The end of the detection tube (302) is provided with a flexible tube (303), and the end of the flexible tube (303) is provided with a connecting tube (304). A second elastic element (305) is provided between the connecting tube (304) and the mounting plate (301). The first elastic element (203) and the second elastic element (305) both include a spring and a telescopic rod. The closing plate (306) is provided at the end of the connecting tube (304). The front of the closing plate (306) is provided with a hole communicating with the connecting tube (304). The closing plate (306) includes an arc-shaped fitting part (3061) and guide parts (3062) provided at both ends of the fitting part (3061). The guide parts (3062) are bent outward in an arc shape.

7. The waste gas storage device for waste gas detection according to claim 6, characterized in that, The fitting part (3061) is provided with a mounting part (3063), and the positioning rod (307) is provided on the mounting part (3063). The positioning rod (307) includes a telescopic part (3071) and a positioning part (3072) in sequence along the long axis direction. The end of the positioning part (3072) is provided with a ball bearing.

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