Ambient air waste gas detection device
By using a one-way intake valve plate and an electric push rod to control the piston in the air exhaust gas detection device, combined with a threaded connecting sleeve, the problem of detection accuracy caused by gas crosstalk was solved, and the airtightness and detection accuracy were improved.
Patent Information
- Application Number
- CN202422650887.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-31
- Publication Date
- 2025-10-17
- Estimated Expiration
- 2034-10-31
AI Technical Summary
Existing air exhaust gas detection devices have a brief exchange of gas with the outside environment when the gas collection bottle is opened, which reduces the accuracy of the detection.
An ambient air exhaust gas detection device was designed, which adopts a one-way opening air inlet valve plate, an electric push rod to control the piston, and a threaded connecting sleeve to ensure that the gas does not communicate with the outside world during sampling and detection. By controlling the movement of the piston with the electric push rod and the stable connection of the threaded connecting sleeve, the airtightness and detection accuracy are improved.
This effectively prevents the gas from communicating with the outside world, ensuring the accuracy and precision of the detection and improving the purity of the sampled gas.
Smart Images
Figure CN223449912U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to environmental detection technical field, concretely is a kind of environmental air waste gas detection device. BACKGROUND
[0002] Atmosphere sampling in environmental detection is the process of collecting gas samples or contaminated air samples in the atmosphere, and atmosphere sampling is an important step of atmospheric environmental detection, which is of great importance to the reliability of detection data. Currently, there are two types of field sampling methods: one is to pass a large amount of air through a liquid absorbent or a solid adsorbent to enrich the low-concentration pollutants in the atmosphere, such as air pumping method and filter membrane method. For conventional gas factor detection, this method is used, i.e., under a certain flow rate, the gas sample is introduced into the absorption liquid, and the concentration of the fixed gas factor in the absorption liquid is calculated. The other type is to collect gas samples from the corresponding sampling site using a container. This method is mainly used for gas factors that cannot be fixed by absorbents, such as odor concentration, waste gas, and non-methane total hydrocarbon concentration. In this case, the gas sample is filled into a sampling device, and the gas is detected in the laboratory in gas phase. However, the existing environmental detection uses an air waste gas collection device to fix the gas collection bottle on a support rod, use an air pump to suck the gas from the sampling site, and store the gas in the gas collection bottle. When detecting the gas in the gas collection bottle, the bottle needs to be opened to allow the gas inside to communicate with the detection device. However, due to the opening of the gas collection bottle, the gas inside may temporarily communicate with the outside, which affects the accuracy of the sampling gas detection. Therefore, we propose an environmental air waste gas detection device. SUMMARY
[0003] The utility model provides a kind of environmental air waste gas detection device, solve the problem raised in above background art.
[0004] To achieve the above purpose, the utility model realizes the following technical scheme: a kind of environmental air waste gas detection device, including device main body, air sampling sampling tank is arranged on device main body, and air detection assembly is installed in the inside of device main body, the bottom end of device main body is movably connected with sampling tank, and one-way opening air inlet valve plate is installed in the bottom end inside sampling tank, the bottom end of sampling tank is provided with the air intake air pumping section, the middle of sampling tank inside is fixedly connected with support frame, the bottom end of support frame is provided with movable piston, the diameter of piston corresponds with air pumping section, and the middle of sampling tank is movably connected with the communication frame that can close sampling tank, the bottom of device main body top is fixed with push base, and push base can abut with the top of communication frame.
[0005] Optionally, the outside of the sampling tank is fixedly connected with a second spring, the bottom end of the second spring is fixed with the device body, and the bottom end inside the sampling tank is fixedly connected with a fixing frame, the bottom of the fixing frame is fixedly connected with a third spring, and the bottom end of the third spring is fixed with the top of the air inlet valve plate.
[0006] Optionally, an electric push rod is fixedly connected in the support frame, the bottom end of the electric push rod extends out of the support frame and is fixed with the piston, and a fifth spring is fixedly connected to the top end of the support frame, and the top end of the fifth spring is fixed with the communication frame.
[0007] Optionally, a gas release rod is movably connected to the middle of the push base, the bottom end of the gas release rod can be in contact with the top of the communication frame, the top end of the gas release rod extends out of the device body, and a first spring is fixedly connected to the top end of the gas release rod, and the bottom end of the first spring is fixed with the top of the device body.
[0008] Optionally, a fixing sleeve is fixedly connected to the bottom of the top end of the device body, the bottom end of the fixing sleeve is in abutment with the top end of the sampling tank, and a connecting sleeve is threadedly sleeved on the outside of the fixing sleeve, and the connecting sleeve is movably sleeved on the outside of the sampling tank.
[0009] Optionally, a limiting ball is movably connected to the outside of the connecting sleeve, one end of the limiting ball passes through the connecting sleeve and is clamped with the outside of the fixing sleeve, and a limiting sleeve is movably connected to the outside of the connecting sleeve, and a placement chamber for storing the limiting ball is formed in the inside of the limiting sleeve.
[0010] Optionally, the inside of the limiting sleeve is in contact with the limiting ball, and a fourth spring is fixedly connected to the bottom end of the limiting sleeve, and the bottom end of the fourth spring is fixed with the connecting sleeve.
[0011] The utility model has the following beneficial effects:
[0012] 1. The environmental air waste gas detection device, through the pulling of the electric push rod, the piston can gradually draw in the gas, when detecting, the air inlet valve plate closes the sampling tank, at this moment, when the sampling tank is continuously screwed, the gas release rod and the push base gradually push away the communication frame, so that the sampled gas in the sampling tank can be communicated with the device body, avoiding the gas in the sampling tank from communicating with the outside when the sampling tank is connected with the device body, thereby ensuring the accuracy of detection.
[0013] 2. The environmental air waste gas detection device, through the threaded connection of the connecting sleeve and the limitation of the limiting ball, the relative thread slipping when the threaded connection vibrates can be avoided, the connection is more stable, and the air tightness during detection can be effectively ensured, thereby improving the detection accuracy. BRIEF DESCRIPTION OF DRAWINGS
[0014] Figure 1 is a structure schematic view of the utility model;
[0015] Figure 2 is a structure schematic view of the utility model in section;
[0016] Figure 3 is a structure schematic view of the utility model in lower section;
[0017] Figure 4 is a structure schematic view of the utility model in upper section;
[0018] Figure 5 is a structure schematic view of the utility model in middle section.
[0019] In the figure: 1, device main body;2, connecting sleeve;3, limit sleeve;4, first spring;5, deflation rod;6, push base body;7, communication frame;8, sampling tank;9, suction section;10, second spring;11, fixed frame;12, inlet valve plate;13, third spring;14, fixed sleeve;15, placement chamber;16, limit ball;17, fourth spring;18, fifth spring;19, support frame;20, piston;21, electric push rod. DETAILED DESCRIPTION
[0020] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the utility model.
[0021] Please refer to Figures 1 to 5The utility model provides an environmental air exhaust detection device, including device main body 1, be provided with air sampling sampling tank 8 on device main body 1, the gas after sampling is stored in sampling tank 8, avoid with outside intercommunication, and install air detection subassembly in the inside of device main body 1, can detect the gas in sampling tank 8 through air detection subassembly, its installation in the top of device main body 1, air detection subassembly is not improved, therefore, do not repeat, the bottom of device main body 1 swing joint has sampling tank 8, sampling tank 8 can move relative to device main body 1, and install one-way opening air inlet valve plate 12 in the bottom in sampling tank 8, further make its gas can be extracted to sampling tank 8 when sampling, and will not discharge through air inlet valve plate 12, the bottom of sampling tank 8 is provided with the air intake of suction section 9, the inside fixed connection of sampling tank 8 in the middle has support frame 19, the bottom of support frame 19 is provided with movable piston 20, the diameter of piston 20 corresponds with suction section 9, when piston 20 is in suction section 9 and moves upwards, the air pressure in suction section 9 reduces, in turn make air inlet valve plate 12 open, extract gas sampling, and the middle swing joint of sampling tank 8 has the communication frame 7 of closable sampling tank 8, the communication frame 7 can move to sampling tank 8, in turn open sampling tank 8, make gas can be connected with device main body 1, the bottom fixed of device main body 1 top has the push base 6, the push base 6 can be with the top of communication frame 7 and abut, when sampling tank 8 moves, the push base 6 can push communication frame 7 gradually open.
[0022] Please see Figures 1 to 5 The outside fixed connection of sampling tank 8 has second spring 10, the bottom of second spring 10 is fixed with device main body 1, under the action of second spring 10 tension, make the sampling tank 8 that pushes upwards can smoothly restore original position, facilitate the detection of next time, and the bottom fixed connection of sampling tank 8 inside has fixed frame 11, the bottom fixed connection of fixed frame 11 has third spring 13, the bottom of third spring 13 is fixed with the top of air inlet valve plate 12, under the action of third spring 13 elasticity, make the air inlet valve plate 12 that pushes upwards can close sampling tank 8 in time, avoid the gas in sampling tank 8 with the gas of outside intercommunication.
[0023] Please see Figures 1 to 5 The inside fixed connection of support frame 19 has electric push rod 21, the bottom of electric push rod 21 stretches out support frame 19 and is fixed with piston 20, under the drive of electric push rod 21, make piston 20 can move, its electric push rod 21 is prior art, do not repeat here, and the top fixed connection of support frame 19 has fifth spring 18, the top of fifth spring 18 is fixed with communication frame 7, under the action of fifth spring 18 elasticity, make the communication frame 7 that pushes upwards can smoothly restore original position, close sampling tank 8, in turn facilitate the detection of next time.
[0024] Please seeFigures 1 to 5 The middle of the pushing base body 6 is movably connected with a deflation rod 5, the deflation rod 5 can move relative to the pushing base body 6, and then the deflation rod 5 is pushed after detection, so that the deflation rod 5 can push the communication frame 7 to open, and the gas stored in the sampling tank 8 is discharged. The bottom end of the deflation rod 5 can be in contact with the top of the communication frame 7, the top end of the deflation rod 5 extends out of the device main body 1, and the top end of the deflation rod 5 is fixedly connected with a first spring 4. The bottom end of the first spring 4 is fixed to the top of the device main body 1. Under the action of the elasticity of the first spring 4, the deflation rod 5 can be restored to its original position, facilitating the next deflation.
[0025] Please refer to Figures 1 to 5 The bottom of the top end of the device main body 1 is fixedly connected with a fixed sleeve 14, the bottom end of the fixed sleeve 14 is in abutment with the top end of the sampling tank 8, so that the gas tightness during detection is better, and a connecting sleeve 2 is threadedly sleeved on the outside of the fixed sleeve 14. The sampling tank 8 and the fixed sleeve 14 can be connected and fixed through the connection of the connecting sleeve 2, and the sampling tank 8 can seal the fixed sleeve 14 and the sampling tank 8 before the sampling tank 8 contacts the fixed sleeve 14, to ensure the airtightness therebetween, avoid the gas from communicating with the external gas when the communication frame 7 is opened, and the connecting sleeve 2 is movably sleeved on the outside of the sampling tank 8. The connecting sleeve 2 can be rotated at a fixed position on the sampling tank 8.
[0026] Please refer to Figures 1 to 5 The outside of the connecting sleeve 2 is movably connected with a limiting ball 16, the limiting ball 16 can move on the connecting sleeve 2, one end of the limiting ball 16 penetrates through the connecting sleeve 2 and is clamped with the outside of the fixed sleeve 14, limiting the connecting sleeve 2 and the fixed sleeve 14, avoiding the relative thread slipping when the threaded connection of the connecting sleeve 2 and the fixed sleeve 14 is vibrated, so that the connection is more stable, and a limiting sleeve 3 is movably connected to the outside of the connecting sleeve 2. The inside of the limiting sleeve 3 is provided with a placing chamber 15 capable of storing the limiting ball 16, so that the limiting ball 16 can be stored before connection.
[0027] Please refer to Figures 1 to 5 The inside of the limiting sleeve 3 is in contact with the limiting ball 16, so that the limiting ball 16 can be stably clamped with the fixed sleeve 14, so that the connection is more firm, and the bottom end of the limiting sleeve 3 is fixedly connected with a fourth spring 17. The bottom end of the fourth spring 17 is fixed to the connecting sleeve 2. Under the action of the elasticity of the fourth spring 17, the limiting sleeve 3 can stably bind the limiting ball 16.
[0028] In summary, the ambient air exhaust detection device, when in use, under the pulling of the electric push rod 21 upward, the piston 20 moves upward, under the movement of the piston 20 in the suction section 9, the air pressure in the suction section 9 decreases, the air inlet valve plate 12 moves upward to open, so that the gas can be sucked into the suction section 9, and after the piston 20 moves out of the suction section 9, the piston 20 stops moving, and then the sampling tank 8 is pushed upward, and the connecting sleeve 2 is screwed, the connecting sleeve 2 can be installed with the outside of the fixed sleeve 14, after the connecting sleeve 2 and the fixed sleeve 14 are completely screwed, under the action of the fourth spring 17, the limiting sleeve 3 moves the limiting ball 16 to be clamped with the fixed sleeve 14, and the limiting sleeve 3 moves to limit the limiting ball 16, at this time, the sampling tank 8 abuts against the fixed sleeve 14, before abutting, the air release rod 5 and the pushing base 6 contact the communication frame 7, then the communication frame 7 can move relative to the sampling tank 8 and open, so that the gas can be connected with the device main body 1 through the fixed sleeve 14, and then the gas in the device main body 1 is detected.
[0029] In the description of the present application, it should be explained that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore it cannot be understood as a limitation on the present application; the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance, in addition, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting" should be understood in a broad sense, for example, it can be fixed connection, or detachable connection, or integrated connection; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, it can be the communication inside two elements. For ordinary skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances. Moreover, the terms "include", "contain" or any other variant thereof are intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or includes the elements inherent to such process, method, article or equipment.
[0030] Although the embodiments of the present application have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the present application, the scope of the present application is defined by the appended claims and their equivalents.
Claims
1. An ambient air exhaust gas detection device, comprising a device body (1), a sampling can (8) for air sampling provided on the device body (1), and an air detection component installed inside the device body (1), characterized in that: The bottom end of the device body (1) is movably connected to a sampling tank (8), and a one-way opening air intake valve plate (12) is installed at the bottom end of the sampling tank (8). The bottom end of the sampling tank (8) is provided with an air intake pumping section (9). The middle of the sampling tank (8) is fixedly connected to a support frame (19). The bottom end of the support frame (19) is provided with a movable piston (20). The diameter of the piston (20) corresponds to the air extraction section (9). In addition, a connecting frame (7) capable of closing the sampling tank (8) is movably connected to the middle of the sampling tank (8). A pushing base (6) is fixed at the bottom of the top end of the device body (1), and the pushing base (6) can abut against the top end of the connecting frame (7).
2. The ambient air exhaust gas detection device according to claim 1, characterized in that: The outer side of the sampling tank (8) is fixedly connected to a second spring (10), the bottom end of the second spring (10) is fixed to the device body (1), and the bottom end of the interior of the sampling tank (8) is fixedly connected to a fixing frame (11), the bottom of the fixing frame (11) is fixedly connected to a third spring (13), and the bottom end of the third spring (13) is fixed to the top of the intake valve plate (12).
3. The ambient air exhaust gas detection device according to claim 2, characterized in that: An electric push rod (21) is fixedly connected to the support frame (19), the bottom end of the electric push rod (21) extends out of the support frame (19) and is fixed to the piston (20), and a fifth spring (18) is fixedly connected to the top end of the support frame (19), and the top end of the fifth spring (18) is fixed to the connecting frame (7).
4. The ambient air exhaust gas detection device according to claim 3, characterized in that: The middle of the pushing base (6) is movably connected to a deflation rod (5), the bottom end of the deflation rod (5) can contact the top of the connecting frame (7), the top end of the deflation rod (5) extends out of the device body (1), and the top end of the deflation rod (5) is fixedly connected to a first spring (4), and the bottom end of the first spring (4) is fixed to the top of the device body (1).
5. The ambient air exhaust gas detection device according to claim 4, characterized in that: The bottom of the top of the device body (1) is fixedly connected to a fixed sleeve (14), the bottom end of the fixed sleeve (14) is in contact with the top of the sampling tank (8), and a connecting sleeve (2) is threadedly sleeved on the outside of the fixed sleeve (14), and the connecting sleeve (2) is movably sleeved on the outside of the sampling tank (8).
6. The ambient air exhaust gas detection device according to claim 5, characterized in that: A limiting ball (16) is movably connected to the outside of the connecting sleeve (2), one end of the limiting ball (16) passes through the connecting sleeve (2) and is engaged with the outside of the fixed sleeve (14), and a limiting sleeve (3) is movably connected to the outside of the connecting sleeve (2), and a placement chamber (15) for storing the limiting ball (16) is provided on the inside of the limiting sleeve (3).
7. The ambient air exhaust gas detection device according to claim 6, characterized in that: The inner side of the limiting sleeve (3) contacts the limiting ball (16), and a fourth spring (17) is fixedly connected to the bottom end of the limiting sleeve (3), and the bottom end of the fourth spring (17) is fixed to the connecting sleeve (2).