A mobile aerosol sampler

Abstract

The utility model relates to radioactive aerosol sampling technical field discloses a mobile aerosol sampler, including the box, the top of box is equipped with the clamping mechanism, the clamping mechanism includes the mounting seat of symmetrical settings, the bottom fixedly connected at the top of box of mounting seat, the inside rotationally connected with the connecting block of mounting seat, one end of connecting block is fixedly connected with handle, the other end of connecting block is rotationally connected with the connecting plate, one end rotationally connected with the sliding rod of two connecting plates, the outer wall sliding connection of sliding rod has the fixed plate, the bottom fixedly connected at the top of box of fixed plate, the other end fixedly connected with the arc clamping plate of sliding rod, in the utility model, through clamping mechanism makes the arc clamping plate symmetrical force of fitting into the air inlet outer wall, fixes the air inlet in the box, compacts filter paper interlayer, has realized to the quick chucking of air inlet, has realized the fixing of filter paper interlayer, realizes the closed of gas circuit.

Description

Technical Field

[0001] This utility model relates to the field of radioactive aerosol sampling technology, and in particular to a mobile aerosol sampler. Background Technology

[0002] Radioactive aerosols are key monitoring targets in nuclear facility operation, nuclear accident emergency response, and radioactive material monitoring. Aerosols can enter the human body through the respiratory tract and cause internal radiation hazards to health. With the increasing demand for accurate source tracing and efficient monitoring of airborne pollutants in fields such as public health, environmental monitoring, and nuclear emergency response, mobile high-flow aerosol samplers can serve as key on-site sampling equipment. Therefore, a mobile aerosol sampler is needed.

[0003] Existing samplers lack a quick-release sampling medium replacement structure, which leads to a complex filter paper replacement process. In emergency scenarios, this can delay sampling and reduce the sampling effectiveness of the sampler. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a mobile aerosol sampler, which aims to improve the problem of the lack of a quick-disassembly and assembly sampling medium replacement structure, which leads to a complicated filter paper replacement process and delays sampling in emergency scenarios, thereby reducing the sampling effect of the sampler.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a mobile aerosol sampler, comprising a housing, a clamping mechanism mounted on the top of the housing, the clamping mechanism comprising symmetrically arranged mounting seats, the bottom of the mounting seats being fixedly connected to the top of the housing, connecting blocks being rotatably connected inside each mounting seat, a handle being fixedly connected to one end of each connecting block, and connecting plates being symmetrically rotatably connected to the other end of each connecting block, a sliding rod being rotatably connected to one end of each of the two connecting plates, a fixed plate being slidably connected to the outer wall of the sliding rod, the bottom of the fixed plate being fixedly connected to the top of the housing, an arc-shaped clamping plate being fixedly connected to the other end of the sliding rod, and a protective assembly mounted on the top of the housing.

[0006] By adopting the above technical solution, the air inlet can be quickly clamped through the clamping mechanism. That is, by turning the handle, the filter paper can be installed and fixed, ensuring that the bottom of the air inlet and the top of the filter paper interlayer are sealed and stable. The sliding rod can be driven by the connecting plate to slide in the fixed plate, driving the arc-shaped clamping plate to fit tightly against the outer wall of the air inlet. This improves the problem of the sampling medium replacement structure without quick disassembly and assembly, which would lead to a complicated filter paper interlayer replacement process, delay the sampling time in emergency scenarios, and reduce the sampling effect of the sampler.

[0007] Preferably, the middle part of the box body has an installation hole, a sealing ring is installed in the installation hole of the box body, and an air inlet is installed on the inner wall of the sealing ring.

[0008] Preferably, an inlet protective grille is fixedly connected to the top of the air inlet.

[0009] Preferably, the protective assembly includes a mounting cylinder, the bottom of which is fixedly connected to the top of the housing, a rectangular rod slidably connected to the top of the mounting cylinder, a limiting ring fixedly connected to the top of the mounting cylinder, the outer wall of the rectangular rod slidably connected to the limiting ring, a locking screw threadedly connected to the outer wall of the limiting ring, one end of the locking screw abutting against the outer wall of the rectangular rod, a mounting plate fixedly connected to the top of the rectangular rod, a protective cover fixedly connected to one side of the mounting plate, and the bottom of the protective cover located at the top of the air inlet.

[0010] Preferably, a sampler is installed on the inner wall of the housing, the input end of the sampler is installed at the bottom of the air inlet, and a filter paper interlayer is assembled between the top of the sampler and the bottom of the air inlet.

[0011] Preferably, a fan is installed on the inner wall of the housing, the input end of the fan is installed at the output end of the sampler, the output end of the fan is fixedly connected to an air outlet pipe, and an outlet protective grille is fixedly connected to the inner wall of one end of the air outlet pipe.

[0012] Preferably, a push handle is fixedly connected to one side of the box, a rotating shaft is uniformly rotatably installed at the bottom of the box, and casters are installed at the bottom of the rotating shaft.

[0013] Preferably, a control panel is installed on the other side of the housing, and a mass flow meter is installed on the other side of the housing.

[0014] This utility model has the following beneficial effects:

[0015] 1. In this utility model, the clamping mechanism enables quick clamping of the air inlet. By rotating the handle, the filter paper can be installed and fixed, ensuring a secure seal between the bottom of the air inlet and the top of the filter paper interlayer. The connecting plate drives the sliding rod to slide within the fixed plate, driving the arc-shaped clamping plate to tightly fit against the outer wall of the air inlet. This improves upon the lack of a quick-disassembly and assembly structure for changing the sampling medium, which would otherwise lead to a complex filter paper interlayer replacement process and delay sampling in emergency scenarios, thereby reducing the sampling effect of the sampler.

[0016] 2. In this utility model, according to the environmental requirements of rainstorms or sandstorms, the locking screw is loosened, allowing one end of the locking screw to detach from the outer wall of the rectangular rod, thus releasing the fixing restriction. The mounting plate is then held and pulled up or down, causing the rectangular rod to slide along the inner wall of the mounting cylinder until the distance between the bottom of the protective cover and the top of the air inlet reaches the preset height. The protective cover covers the top of the air inlet, preventing rainwater, sand, and other impurities from falling directly into the inlet protective grille. Together with the inlet protective grille, it forms double protection, improving the applicability of the equipment in severe weather. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of a mobile aerosol sampler proposed in this utility model;

[0018] Figure 2 This is a partial structural diagram of the housing of a mobile aerosol sampler proposed in this utility model;

[0019] Figure 3 for Figure 2 Enlarged structural diagram of section A;

[0020] Figure 4 This is a partial structural diagram of the handle of a mobile aerosol sampler proposed in this utility model;

[0021] Figure 5 for Figure 4 Enlarged structural diagram of section B;

[0022] Figure 6 This is a partial structural diagram of the protective cover of a mobile aerosol sampler proposed in this utility model.

[0023] Legend:

[0024] 1. Housing; 2. Mounting base; 201. Connecting block; 202. Handle; 203. Connecting plate; 204. Sliding rod; 205. Fixing plate; 206. Arc-shaped clamping plate; 3. Mounting hole; 301. Sealing ring; 302. Air inlet; 303. Inlet protective grille; 304. Filter paper interlayer; 4. Mounting cylinder; 401. Rectangular rod; 402. Limiting ring; 403. Locking screw; 404. Mounting plate; 405. Protective cover; 5. Sampler; 501. Fan; 502. Air outlet pipe; 503. Outlet protective grille; 6. Push handle; 601. Rotating shaft; 602. Casters; 7. Control panel; 701. Mass flow meter. Detailed Implementation

[0025] The technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0026] Reference Figures 1-4 This utility model provides an embodiment of a mobile aerosol sampler, comprising a housing 1, a clamping mechanism mounted on the top of the housing 1, the clamping mechanism including symmetrically arranged mounting seats 2, the bottom of the mounting seats 2 being fixedly connected to the top of the housing 1, connecting blocks 201 being rotatably connected inside the mounting seats 2, a handle 202 being fixedly connected to one end of the connecting blocks 201, and connecting plates 203 being symmetrically rotatably connected to the other end of the connecting blocks 201, sliding rods 204 being rotatably connected to one end of the two connecting plates 203, a fixing plate 205 being slidably connected to the outer wall of the sliding rods 204, the bottom of the fixing plate 205 being fixedly connected to the top of the housing 1, an arc-shaped clamping plate 206 being fixedly connected to the other end of the sliding rods 204, and a protective component being mounted on the top of the housing 1.

[0027] Specifically, the bottom of the air inlet 302 is tightly fitted with the top of the filter paper interlayer 304. The operator turns the handle 202, causing the connecting block 201 to rotate. When the connecting block 201 rotates, the connecting plate 203 is simultaneously subjected to force, pushing the sliding rod 204 connected to one end of the connecting plate 203 to slide horizontally along the inner wall of the fixed plate 205. The sliding rod 204 slides towards the air inlet 302, causing the arc-shaped clamping plate 206 to tightly fit against the outer wall of the air inlet 302. The arc-shaped clamping plates 206 on both sides apply force symmetrically, firmly clamping the air inlet 302 above the housing 1. The clamping force achieves the fixation of the filter paper interlayer 304 through the fixation of the air inlet 302, realizing the air passage sealing. At the same time, the filter paper interlayer 304 is fixed to prevent displacement caused by airflow impact.

[0028] When disassembling and replacing the filter membrane of the filter paper interlayer 304, turn the handle 202 in the opposite direction. The connecting block 201 drives the connecting plate 203 to pull the sliding rod 204 to slide in the opposite direction. The arc-shaped clamp 206 disengages from the outer wall of the air inlet 302, and the air inlet 302 can be taken out upward to replace the filter paper interlayer 304, thus completing the quick disassembly and assembly.

[0029] Reference Figures 1-5 The box body 1 has a mounting hole 3 in the middle, and a sealing ring 301 is installed in the mounting hole 3 of the box body 1. An air inlet 302 is installed on the inner wall of the sealing ring 301.

[0030] An imported protective grille 303 is fixedly connected to the top of the air inlet 302.

[0031] A sampler 5 is installed on the inner wall of the housing 1. The input end of the sampler 5 is installed at the bottom of the air inlet 302. A filter paper interlayer 304 is assembled between the top of the sampler 5 and the bottom of the air inlet 302.

[0032] A fan 501 is installed on the inner wall of the housing 1. The input end of the fan 501 is installed at the output end of the sampler 5. An air outlet pipe 502 is fixedly connected to the output end of the fan 501. An outlet protective grille 503 is fixedly connected to the inner wall of one end of the air outlet pipe 502.

[0033] A control panel 7 is installed on the other side of the housing 1, and a mass flow meter 701 is installed on the other side of the housing 1.

[0034] Specifically, the air inlet 302 is embedded in the mounting hole 3 of the housing 1 through the sealing ring 301, and the filter paper interlayer 304 is pre-placed between the top of the sampler 5 and the bottom of the air inlet 302.

[0035] Sampling parameters are set via control panel 7. After the fan 501 starts, it generates negative pressure suction. External air is initially filtered by the inlet protective grille 303 at the top of the inlet 302 and enters the interior of the inlet 302. The airflow flows out from the bottom of the inlet 302, passes through the filter paper interlayer 304, and radioactive aerosols in the gas are efficiently captured by the filter paper interlayer 304. The purified gas enters the sampler 5. The mass flow meter 701 monitors the gas flow rate through the sampler 5 in real time and feeds the data back to control panel 7. If the flow rate deviates from the set value, the system adjusts the speed of the fan 501 through the control unit to ensure stable flow. The gas processed by the sampler 5 flows into the input end of the fan 501, is powered by the fan 501, and is discharged through the outlet pipe 502 fixedly connected to the output end of the fan 501. The outlet protective grille 503 on the inner wall of one end of the outlet pipe 502 intercepts foreign objects flowing back, ensuring smooth exhaust and preventing contamination of the gas path.

[0036] The sealing ring 301 between the air inlet 302 and the mounting hole 3 of the housing 1 undergoes elastic deformation to fill the gap between the two, preventing external air from entering the air path directly without being filtered by the filter paper, and preventing sampling flow deviation caused by air leakage.

[0037] Reference Figures 1-2 , Figure 4 , Figure 6The protective assembly includes a mounting cylinder 4, the bottom of which is fixedly connected to the top of the housing 1. A rectangular rod 401 is slidably connected to the top of the mounting cylinder 4. A limit ring 402 is fixedly connected to the top of the mounting cylinder 4. The outer wall of the rectangular rod 401 is slidably connected to the limit ring 402. A locking screw 403 is threadedly connected to the outer wall of the limit ring 402. One end of the locking screw 403 abuts against the outer wall of the rectangular rod 401. A mounting plate 404 is fixedly connected to the top of the rectangular rod 401. A protective cover 405 is fixedly connected to one side of the mounting plate 404. The bottom of the protective cover 405 is located at the top of the air inlet 302.

[0038] Specifically, depending on the environmental requirements of rainy or dusty weather, loosen the locking screw 403 so that one end of the locking screw 403 is detached from the outer wall of the rectangular rod 401, releasing the fixing restriction. Hold the mounting plate 404 and pull it up or down to drive the rectangular rod 401 to slide along the inner wall of the mounting cylinder 4 until the distance between the bottom of the protective cover 405 and the top of the air inlet 302 reaches the preset height. Tighten the locking screw 403 so that one end of the locking screw 403 is tightly pressed against the outer wall of the rectangular rod 401. The position of the rectangular rod 401 is fixed by friction, thereby locking the height of the protective cover 405. The protective cover 405 covers the top of the air inlet 302, preventing rainwater, sand and dust and other impurities from falling directly into the inlet protective grille 303. Together with the inlet protective grille 303, it forms double protection, improving the applicability of the equipment in severe weather.

[0039] Reference Figures 1-2 A push handle 6 is fixedly connected to one side of the box body 1, and a rotating shaft 601 is evenly mounted on the bottom of the box body 1. A caster wheel 602 is mounted on the bottom of the rotating shaft 601.

[0040] Specifically, the operator holds the push handle 6 and applies pushing or pulling force to move the universal wheels 602 at the bottom of the box 1.

[0041] When the push handle 6 is rotated to change the direction of force, the caster wheel 602 will turn flexibly with the help of the rotating shaft 601, so that the equipment can move flexibly on flat ground and in narrow passages without the need to frequently adjust the overall position of the equipment.

[0042] Upon reaching the sampling point, step on the brake device built into the universal wheel 602 to stop the universal wheel 602 from rotating. Combined with the support force of the push handle 6, the equipment can be quickly positioned to avoid displacement of the equipment during the sampling process.

[0043] When transferring between different sampling scenarios, the device can be dragged or pushed by the push handle 6, and the caster wheel 602 reduces the friction between the device and the ground, allowing the device to be moved smoothly to complex terrain, improving transfer efficiency and convenience.

[0044] Working principle: Rotating the handle 202 causes the connecting block 201 to rotate, and the connecting plate 203 is pushed by the force to slide the sliding rod 204 horizontally along the fixed plate 205. The arc-shaped clamping plate 206 applies force symmetrically to the outer wall of the air inlet 302, fixing the air inlet 302 above the box 1 and pressing the filter paper interlayer 304. Rotating the handle 202 in the opposite direction causes the sliding rod 204 to slide in the opposite direction, and the arc-shaped clamping plate 206 disengages, allowing the air inlet 302 to be removed and the filter paper interlayer 304 to be replaced.

[0045] The air inlet 302 is embedded in the mounting hole 3 of the housing 1 through the sealing ring 301. The filter paper interlayer 304 is placed between the top of the sampler 5 and the bottom of the air inlet 302. After the parameters are set on the control panel 7, the fan 501 starts to generate negative pressure. The air passes through the inlet protective grille 303, the air inlet 302, and the filter paper interlayer 304 into the sampler 5. The mass flow meter 701 monitors the flow rate and feeds it back to the control panel 7. The system adjusts the speed of the fan 501, and the gas is discharged through the outlet pipe 502 and the outlet protective grille 503.

[0046] By loosening the locking screw 403, the rectangular rod 401 is pulled to slide along the mounting cylinder 4. After adjusting the height of the protective cover 405, the locking screw 403 is tightened to fix it. The protective cover 405 covers the top of the air inlet 302.

[0047] Apply force by holding the push handle 6 to move and turn the universal wheel 602 at the bottom of the box 1. After reaching the point, step on the brake of the universal wheel 602 to fix it.

[0048] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A mobile aerosol sampler, comprising a housing (1), characterized in that: The top of the box (1) is equipped with a clamping mechanism, which includes symmetrically arranged mounting seats (2). The bottom of the mounting seats (2) is fixedly connected to the top of the box (1). The interior of each mounting seat (2) is rotatably connected with a connecting block (201). One end of the connecting block (201) is fixedly connected with a handle (202). The other end of the connecting block (201) is symmetrically rotatably connected with a connecting plate (203). One end of each of the two connecting plates (203) is rotatably connected with a sliding rod (204). The outer wall of the sliding rod (204) is slidably connected with a fixing plate (205). The bottom of the fixing plate (205) is fixedly connected to the top of the box (1). The other end of the sliding rod (204) is fixedly connected with an arc-shaped clamping plate (206). The top of the box (1) is equipped with a protective component.

2. The mobile aerosol sampler according to claim 1, characterized in that: The box (1) has a mounting hole (3) in the middle, and a sealing ring (301) is installed in the mounting hole (3) of the box (1). An air inlet (302) is installed on the inner wall of the sealing ring (301).

3. A mobile aerosol sampler according to claim 2, characterized in that: An inlet protective grille (303) is fixedly connected to the top of the air inlet (302).

4. A mobile aerosol sampler according to claim 1, characterized in that: The protective assembly includes a mounting cylinder (4), the bottom of which is fixedly connected to the top of the housing (1). A rectangular rod (401) is slidably connected to the top of the mounting cylinder (4). A limiting ring (402) is fixedly connected to the top of the mounting cylinder (4). The outer wall of the rectangular rod (401) is slidably connected to the limiting ring (402). A locking screw (403) is threadedly connected to the outer wall of the limiting ring (402). One end of the locking screw (403) abuts against the outer wall of the rectangular rod (401). A mounting plate (404) is fixedly connected to the top of the rectangular rod (401). A protective cover (405) is fixedly connected to one side of the mounting plate (404). The bottom of the protective cover (405) is located at the top of the air inlet (302).

5. A mobile aerosol sampler according to claim 1, characterized in that: A sampler (5) is installed on the inner wall of the housing (1). The input end of the sampler (5) is installed at the bottom of the air inlet (302). A filter paper interlayer (304) is assembled between the top of the sampler (5) and the bottom of the air inlet (302).

6. A mobile aerosol sampler according to claim 1, characterized in that: A fan (501) is installed on the inner wall of the housing (1). The input end of the fan (501) is installed at the output end of the sampler (5). An air outlet pipe (502) is fixedly connected to the output end of the fan (501). An outlet protective grille (503) is fixedly connected to the inner wall of one end of the air outlet pipe (502).

7. A mobile aerosol sampler according to claim 1, characterized in that: A push handle (6) is fixedly connected to one side of the box (1), and a rotating shaft (601) is uniformly installed at the bottom of the box (1). A caster wheel (602) is installed at the bottom of the rotating shaft (601).

8. A mobile aerosol sampler according to claim 1, characterized in that: A control panel (7) is installed on the other side of the housing (1), and a mass flow meter (701) is installed on the other side of the housing (1).

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