Anti-jamming particulate sampling device

Abstract

The utility model provides a particle sampling device of preventing jam, relate to particulate matter monitoring technical field, including sampling device body, filter membrane clamp and control device, sampling device body includes movable filter membrane clamp's moving device, is provided with a plurality of photoelectric sensor on moving device, filter membrane clamp includes filter membrane clamp upper cover and filter membrane clamp lower cover, filter membrane clamp upper cover detachable fixed on filter membrane clamp lower cover, the outer wall of filter membrane clamp upper cover is provided with annular first light reflection patch, when filter membrane clamp that normal cover is closed is taken by moving device, photoelectric sensor is opposite first light reflection patch, control device and photoelectric sensor electric connection, control device includes alarm module, the utility model provides a particle sampling device of preventing jam, solved in the prior art, if filter membrane clamp moves to sampling area under the condition of not completely cover, possibly will be jammed in the problem of sampling area, can monitor whether filter membrane clamp cover is closed completely.

Description

Technical Field

[0001] This utility model relates to the field of particulate matter monitoring technology, and in particular to a particulate matter sampling device that prevents jamming. Background Technology

[0002] Particulate matter sampling equipment is a tool used for air quality monitoring. It captures and collects particulate matter in the air by using a filter membrane holder to hold a filter membrane. In existing particulate matter sampling systems, the filter membrane holder typically consists of an upper cover, a lower cover, and a filter membrane support structure. After the filter membrane is placed on the lower cover, the upper and lower covers need to be manually fastened together before the equipment automatically moves the filter membrane holder to the sampling station to complete the sampling process. However, when manually fastening the upper and lower covers, it is possible that they are not completely closed. If the filter membrane holder in this state is moved to the particulate matter sampling area, the incompletely closed filter membrane holder, due to its larger vertical thickness, may get stuck at the sampling point, thus affecting the movement of the equipment and interrupting the sampling process. Utility Model Content

[0003] To address the aforementioned technical problems, the present invention provides an anti-jamming particulate matter sampling device.

[0004] To achieve the above objectives, the present invention provides an anti-jamming particulate matter sampling device, comprising a sampling device body, a filter membrane clamp, and a control device; the sampling device body includes a moving device for the movable filter membrane clamp; the moving device is equipped with a plurality of photoelectric sensors; the filter membrane clamp includes an upper cover and a lower cover; the upper cover is detachably fixed to the lower cover; an annular first reflective patch is provided on the outer side wall of the upper cover; when the normally closed filter membrane clamp is clamped by the moving device, the photoelectric sensors face the first reflective patch; the control device is electrically connected to the photoelectric sensors; the control device includes an alarm module.

[0005] The anti-jamming particulate matter sampling device provided by this utility model preferably includes three photoelectric sensors; the three photoelectric sensors are arranged in a circumferential array with the cylindrical axis of the filter membrane clamp grasped by the moving device as the center.

[0006] The anti-jamming particulate matter sampling device provided by this utility model preferably has an annular second reflective patch on the outer wall of the lower cover of the filter membrane clip; the reflective intensity of the first reflective patch and the second reflective patch are different; a second photoelectric sensor is provided on the moving device; the second photoelectric sensor is aligned with the second reflective patch of the filter membrane clip being grasped; the second photoelectric sensor is electrically connected to the control device.

[0007] The anti-jamming particulate matter sampling device provided by this utility model preferably uses a diffuse reflection infrared photoelectric sensor as the photoelectric sensor.

[0008] The above technical solution has the following advantages or beneficial effects: This utility model provides an anti-jamming particulate matter sampling device, relating to the field of particulate matter monitoring technology. It includes a sampling device body, a filter membrane clamp, and a control device. The sampling device body includes a moving device for the movable filter membrane clamp; the moving device is equipped with several photoelectric sensors; the filter membrane clamp includes an upper cover and a lower cover; the upper cover is detachably fixed to the lower cover; an annular first reflective patch is provided on the outer wall of the upper cover; when the properly closed filter membrane clamp is gripped by the moving device, the photoelectric sensors face the first reflective patch; the control device is electrically connected to the photoelectric sensors; the control device includes an alarm module. The anti-jamming particulate matter sampling device provided by this utility model solves the problem in the prior art where the filter membrane clamp may get stuck in the sampling area if it is moved without being fully closed, and can monitor whether the filter membrane clamp is fully closed. Attached Figure Description

[0009] The present invention, its features, shape, and advantages will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings. Like reference numerals denote like parts throughout the drawings. The drawings are not intentionally drawn to scale; the focus is on illustrating the gist of the invention.

[0010] Figure 1 This is a schematic diagram of the overall structure of the anti-jamming particulate matter sampling device provided in Embodiment 1 of this utility model.

[0011] Figure 2 This is a schematic diagram of the moving device structure of the anti-jamming particulate matter sampling device provided in Embodiment 1 of this utility model.

[0012] Figure 3 This is a schematic diagram of the filter membrane clip structure of the anti-jamming particulate matter sampling device provided in Embodiment 1 of this utility model.

[0013] Figure 4 This is a schematic diagram of the circuit connection frame of the anti-jamming particulate matter sampling device provided in Embodiment 1 of this utility model. Detailed Implementation

[0014] Example 1: The anti-jamming particulate matter sampling device provided in Embodiment 1 of this utility model, such as Figures 1 to 4As shown, the device includes a sampling device body 1, a filter membrane clip 2, and a control device 3. The sampling device body 1 includes a moving device 11 for the movable filter membrane clip. The moving device 11 is equipped with a plurality of photoelectric sensors 4 (in this embodiment, the photoelectric sensors 4 are diffuse reflection infrared photoelectric sensors). The filter membrane clip 2 includes an upper cover 21 and a lower cover 22. The upper cover 21 is detachably fixed to the lower cover 22. An annular first reflective patch 5 is provided on the outer side wall of the upper cover 21. When the normally closed filter membrane clip 2 is clamped by the moving device 11, the photoelectric sensors 4 face the first reflective patch 5. The control device 3 is electrically connected to the photoelectric sensors 4. The control device 3 includes an alarm module.

[0015] In the use of the anti-jamming particulate matter sampling device provided in Embodiment 1 of this utility model, the filter membrane clamp upper cover 21 is manually fixed to the filter membrane clamp lower cover 22 to complete the closing operation of the filter membrane clamp 2. The moving device 11 of the sampling device body 1 will automatically clamp the filter membrane clamp 2. When the filter membrane clamp 2 is closed in place and stably clamped by the moving device 11, several photoelectric sensors 4 set on the moving device 11 will face the annular first reflective patch 5 on the outer wall of the filter membrane clamp upper cover 21. After the photoelectric sensors 4 are activated, they continuously emit infrared light and simultaneously receive the reflected light signal reflected by the first reflective patch 5, and transmit the reflected light signal in real time. The control device 3, which is electrically connected to the filter membrane clip 2, analyzes and judges the received reflective signal. If the reflective signal is stable and meets the preset standard, it is determined that the filter membrane clip 2 is properly closed. The control device 3 does not trigger the alarm module and allows the mobile device 11 to continue to perform the transfer of the filter membrane clip 2 and subsequent sampling process. If the filter membrane clip 2 is not properly closed, such as when the top cover 21 of the filter membrane clip is warped, the reflective signal received by the photoelectric sensor 4 from the first reflective patch 5 will weaken. After the control device 3 recognizes this abnormality, it immediately controls the mobile device 11 to stop the transfer action and simultaneously activates its own alarm module to issue a warning. Compared with the prior art, this embodiment uses the cooperation of the photoelectric sensor 4 and the first reflective patch 5 to monitor the closing status of the top cover 21 of the filter membrane clip in real time, preventing the filter membrane clip 2 that is not properly closed from being sent into the sampling device body 1 by the mobile device 11, thereby solving the problem of equipment jamming caused by poor closure of the filter membrane clip 2.

[0016] The anti-jamming particulate matter sampling device provided in Embodiment 1 of this utility model solves the problem in the prior art that if the filter membrane clip is moved to the sampling area without being fully closed, it may get stuck in the sampling area. It can monitor whether the filter membrane clip is fully closed.

[0017] As a preferred embodiment, in this case, there are three photoelectric sensors 4; the three photoelectric sensors 4 are arranged in a circumferential array around the cylindrical axis of the filter membrane clip 2 grasped by the moving device 11. Compared to a single photoelectric sensor 4, the three photoelectric sensors 4 arranged in a circumferential array around the cylindrical axis of the filter membrane clip 2 can fully cover the annular first reflective patch 5 on the outer wall of the filter membrane clip cover 21. No matter which direction the filter membrane clip cover 21 is warped or misaligned and not properly closed, at least one photoelectric sensor 4 will capture the abnormal reflective signal, avoiding the problem of missed detection caused by the blind zone of a single-point sensor.

[0018] In a preferred embodiment, an annular second reflective patch 6 is provided on the outer wall of the filter membrane clip lower cover 22; the reflective intensity of the first reflective patch 5 and the second reflective patch 6 are different; a second photoelectric sensor 7 is provided on the moving device 11; the second photoelectric sensor 7 is aligned with the second reflective patch 6 of the gripped filter membrane clip; the second photoelectric sensor 7 is electrically connected to the control device 3. By aligning the second photoelectric sensor 7 with the second reflective patch 6 of the filter membrane clip lower cover 22, it is used to detect whether the filter membrane clip lower cover 22 is accurately gripped by the moving device 11. If the filter membrane clip lower cover 22 is not positioned correctly in the gripping position of the moving device 11, the reflective signal received by the second photoelectric sensor 7 from the second reflective patch 6 will show abnormal intensity. The control device 3 can directly determine the lower cover positioning failure through this signal, avoiding the situation where the filter membrane clip upper cover 21, which was not fully closed, is actually in the area that can be judged as normal by the photoelectric sensor 4 due to the lower cover being tilted, and the uncovered filter membrane clip is mistakenly moved into the sampling area.

[0019] In summary, this utility model provides an anti-jamming particulate matter sampling device, relating to the field of particulate matter monitoring technology. It includes a sampling device body, a filter membrane clamp, and a control device. The sampling device body includes a moving device for the movable filter membrane clamp; the moving device is equipped with several photoelectric sensors; the filter membrane clamp includes an upper cover and a lower cover; the upper cover is detachably fixed to the lower cover; an annular first reflective patch is provided on the outer wall of the upper cover; when the normally closed filter membrane clamp is gripped by the moving device, the photoelectric sensors face the first reflective patch; the control device is electrically connected to the photoelectric sensors; the control device includes an alarm module. The anti-jamming particulate matter sampling device provided by this utility model solves the problem in the prior art where the filter membrane clamp may get stuck in the sampling area if it is moved without being fully closed, and can monitor whether the filter membrane clamp is fully closed.

[0020] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structural transformations made based on the contents of the present utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present utility model.

Claims

1. A particulate matter sampling device with anti-jamming capability, comprising a sampling device body and a filter membrane clamp, characterized in that, It also includes control devices; The sampling device body includes a movable device for a movable filter membrane clip; The mobile device is equipped with several photoelectric sensors; The filter membrane clamp includes an upper cover and a lower cover; the upper cover is detachably fixed to the lower cover. The outer wall of the filter membrane clip cover is provided with an annular first reflective patch. When the normally closed filter membrane clip is gripped by the moving device, the photoelectric sensor is facing the first reflective patch; The control device is electrically connected to the photoelectric sensor; The control device includes an alarm module.

2. The anti-jamming particulate matter sampling device as described in claim 1, characterized in that, There are three photoelectric sensors; The three photoelectric sensors are arranged in a circular array with the cylindrical axis of the filter membrane clamp grasped by the mobile device as the center.

3. The anti-jamming particulate matter sampling device as described in claim 1, characterized in that, The outer wall of the filter membrane clip lower cover is provided with an annular second reflective patch; the reflective intensity of the first reflective patch and the second reflective patch are different; The mobile device is equipped with a second photoelectric sensor; the second photoelectric sensor is aligned with the second reflective patch of the filter membrane clip being grasped. The second photoelectric sensor is electrically connected to the control device.

4. The anti-jamming particulate matter sampling device as described in claim 1, characterized in that, The photoelectric sensor is a diffuse reflection infrared photoelectric sensor.

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