A fixing mechanism of a handheld particulate matter detection device

Abstract

A kind of fixing mechanism of handheld particulate matter detection device, it is related to mechanical field, including a detection box, the detection box both ends are equipped with a fixed plate, two The fixed plate is installed with rotating shaft, the rotating shaft is installed with rotating plate, one side of the rotating plate is equipped with several suction cups, the other side of the rotating plate is equipped with a guide groove, the middle part of the guide groove is equipped with a center block, the center block separates guide groove into left guide area and right guide area, left guide area and right guide area each are equipped with a group of magnetic attraction mechanism.The present application can realize the fixation of detection box in multiple ways by suction cup, permanent magnet and corresponding clamping design, personnel can place particulate matter sensor in the detected area, and the particulate matter concentration thereof can be observed, recorded and uploaded through mobile phone APP, the farthest communication distance is greater than 100 meters, saves personnel physical strength, and guarantees the health of personnel.

Description

TECHNICAL FIELD

[0001] The present application relates to the mechanical field, specifically a kind of fixing mechanism of handheld particulate matter detection device. BACKGROUND

[0002] In recent years, China's northeast region, north China and Yangtze River delta region have serious air pollution problems;Among them, PM2.5 and PM10 with smaller particle size are more harmful to human health, can cause pneumoconiosis, and have become the main purpose of urban air pollution control.

[0003] In order to detect the concentration of PM in urban atmosphere, some environmental protection companies have developed portable particulate matter detector, but the particulate matter detector on the market still has the following problems, portable particulate matter detector needs to be held for a long time, long time test will lead to physical consumption of staff, and particulate matter to be measured area, air pollution is relatively serious, people in such environment for a long time affects people's health. SUMMARY

[0004] In view of the problems in the prior art, the present application provides a fixing mechanism of handheld particulate matter detection device, which can avoid the occurrence of the above problems.

[0005] The technical solution adopted by the present application to solve its technical problems is:

[0006] A fixing mechanism of handheld particulate matter detection device, comprising a detection box, the detection box is provided with a fixed plate at both ends, two fixed plates are provided with rotating shafts, rotating plates are installed on the rotating shafts, a plurality of suction cups are arranged on one side of the rotating plate, a guide groove is arranged on the other side of the rotating plate, a center block is arranged in the middle of the guide groove, the center block divides the guide groove into left guide area and right guide area, and a set of magnetic attraction mechanism is arranged in each of the left guide area and the right guide area.

[0007] Further, the magnetic attraction mechanism comprises a sliding plate, the sliding plate can slide along the guide groove, a left baffle is arranged on the left side of the sliding plate, a flexible spring is arranged between the left baffle and the inner wall of the left side of the guide groove, a right baffle is arranged on the right side of the sliding plate, the right baffle abuts against the center block under the action of the flexible spring, a connecting plate is arranged on the right baffle, a fixed shaft is installed on the connecting plate, a permanent magnet is rotatably connected to the fixed shaft, a connecting rod is arranged at the bottom of the permanent magnet, an elastic ball is arranged on the connecting rod, a plug ball hole matched with the elastic ball is arranged on the sliding plate, and the permanent magnet can rotate around the fixed shaft and make the elastic ball enter the plug ball hole to limit the rotation of the permanent magnet.

[0008] Further, when the elastic ball is inserted into the plug ball hole, the left end of the permanent magnet abuts against the inner wall of the guide groove.

[0009] Further, when the permanent magnet rotates around the fixed shaft to be perpendicular to the sliding plate, the right end surface of the permanent magnet abuts against the right baffle, and the permanent magnet and the sliding plate are fixedly connected through the L-shaped plate.

[0010] Further, the L-shaped plate is fixedly connected to the permanent magnet through the upper fixing bolt, and fixedly connected to the sliding plate through the lower fixing bolt.

[0011] Further, the fixed plate is provided with a rotating shaft hole for accommodating the rotating shaft.

[0012] Further, when the rotating shaft is installed on the two fixed plates, the two ends of the rotating shaft are threadedly connected with lock nuts.

[0013] Further, the detection box comprises an outer shell, the surface of the outer shell is provided with an air inlet plate, the air inlet plate is provided with a plurality of air inlet holes, the outer shell is internally provided with a control board, and the control board is connected with a particulate matter sensor.

[0014] Further, the outer shell is further provided with a storage battery, and the storage battery is connected with the control board.

[0015] The beneficial effects of the present application are: the present application can realize the fixation of the detection box in multiple ways through the suction cup, the permanent magnet and the corresponding clamping design, the particulate matter sensor can be placed in the detected area by the staff, the particulate matter concentration can be observed, recorded and uploaded through the mobile phone APP, the longest communication distance is greater than 100 meters, the staff's physical strength is saved, and the staff's health is protected. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the present application;

[0017] Figure 2 It is a structural schematic diagram of the first use state of the present application;

[0018] Figure 3 It is a structural schematic diagram of the second use state of the present application;

[0019] Figure 4 It is a structural schematic diagram of the third use state of the present application;

[0020] Figure 5 It is Figure 3 the local enlarged view of A in the middle;

[0021] Figure 6 It is Figure 3 the local enlarged view of B in the middle;

[0022] In the diagram: 1. Detection box, 11. Air inlet plate, 12. Air inlet hole, 2. Fixing plate, 3. Rotating shaft, 4. Locking nut, 5. Rotating plate, 51. Suction cup, 52. Guide groove, 53. Center block, 6. Magnetic suction mechanism, 61. Sliding plate, 62. Left baffle, 63. Flexible spring, 64. Right baffle, 65. Insertion ball hole, 66. Fixing shaft, 67. Permanent magnet, 68. Connecting rod, 69. Elastic ball, 71. L-shaped plate, 72. Upper fixing bolt, 73. Lower fixing bolt. Detailed Implementation

[0023] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. In the description of the present invention, it should be understood that the terms "center," "longitudinal," "lateral," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of the present invention.

[0024] like Figures 1 to 6 As shown, a fixing mechanism for a handheld particulate matter detection device includes a detection box 1. A fixing plate 2 is provided at each end of the detection box, and a rotating shaft 3 is mounted on each of the two fixing plates. A rotating plate 5 is mounted on the rotating shaft. Several suction cups 51 are provided on one side of each rotating plate, allowing the detection box to adhere to the surface of glass or other smooth objects using the suction cups. A guide groove 52 is provided on the other side of the rotating plate, and a central block 53 is provided in the middle of the guide groove, dividing it into a left guide area and a right guide area. Each of the left and right guide areas is provided with a set of magnetic attraction mechanisms 6. The magnetic attraction mechanisms can adhere to the surface of ferromagnetic objects to facilitate the fixing of the detection box.

[0025] Furthermore, the fixing plate is provided with a shaft hole for accommodating the insertion of a rotating shaft.

[0026] Furthermore, when the rotating shaft is mounted on two fixed plates, locking nuts 4 are threaded to both ends of the rotating shaft to lock the rotating shaft and prevent it from rotating.

[0027] In at least one embodiment, the detection box includes an outer shell, an air inlet plate 11 is provided on the surface of the outer shell, a plurality of air inlet holes 12 are provided on the air inlet plate, a control board is installed inside the outer shell, and a particulate matter sensor is connected to the control board.

[0028] Further, the housing is also provided with a battery, and the battery is connected with a control panel, which is used for charging the control panel and the particulate matter sensor.

[0029] In at least one embodiment, taking the left guide area as an example, the magnetic attraction mechanism comprises a sliding plate 61, which can slide along the guide groove. The left side of the sliding plate is provided with a left baffle 62, and a flexible spring 63 is arranged between the left baffle and the inner wall of the left side of the guide groove. The right side of the sliding plate is provided with a right baffle 64, which abuts against the center block under the action of the flexible spring. A connecting plate is arranged on the right baffle, a fixed shaft 66 is mounted on the connecting plate, a permanent magnet 67 is rotatably connected to the fixed shaft, a connecting rod 68 is arranged at the bottom of the permanent magnet, and an elastic ball 69 is arranged on the connecting rod. Correspondingly, a plug ball hole 65 is arranged on the sliding plate and matched with the elastic ball. The permanent magnet can rotate around the fixed shaft and make the elastic ball enter the plug ball hole to limit the rotation of the permanent magnet.

[0030] Further, when the elastic ball is inserted into the plug ball hole, the left end of the permanent magnet abuts against the inner wall of the guide groove.

[0031] In the working mode, people can loosen the locking nut to make the magnetic attraction mechanism rotate to the side away from the detection box, and then lock the rotating shaft by means of the locking nut. At this time, the elastic ball in the magnetic attraction mechanism is inserted into the plug ball hole, and the permanent magnet can make the detection box be magnetically attracted to the surface of any ferromagnetic object to perform atmospheric detection.

[0032] In some embodiments, as shown in Figure 4 The permanent magnet rotates around the fixed shaft to be perpendicular to the sliding plate, and the right end surface of the permanent magnet abuts against the right baffle at this time. The permanent magnet and the sliding plate are fixedly connected through an L-shaped plate 71. At this time, the two permanent magnets form two clamping plates, and the detection box can be conveniently clamped and fixed at the atmospheric detection position by means of the elastic force of the flexible spring.

[0033] Further, the L-shaped plate is fixedly connected to the permanent magnet through an upper fixing bolt 72, and fixedly connected to the sliding plate through a lower fixing bolt 73.

[0034] The working mode is as follows: after the detection box is fixed at the detection position by the fixing mechanism, the mobile phone APP is connected with the handheld particulate matter sensor through Bluetooth wireless communication, the operator issues instructions to the particulate matter sensor through the mobile phone APP to perform relevant actions, the particulate matter sensor in the detection box transmits PM2.5, PM10, temperature, humidity, residual power and other information to the mobile phone APP through Bluetooth communication according to the instructions issued by the mobile phone APP, and the particulate matter sensor has an automatic alarm function, and when the residual power is lower than the set value or the particulate matter concentration is higher than the set value, the sensor triggers the buzzer to alarm.

[0035] In addition to the technical features described in the specification, they are known to those skilled in the art.

Claims

1. A fixing mechanism of a hand-held particulate matter detection device, characterized in that, Including a detection box, the detection box is equipped with a fixed plate at both ends, two fixed plates are installed with rotating shafts, the rotating shafts are installed with rotating plates, one side of the rotating plate is equipped with a plurality of suction cups, the other side of the rotating plate is equipped with a guide groove, the middle of the guide groove is equipped with a center block, the center block divides the guide groove into left and right guide areas, a set of magnetic attraction mechanism is arranged in the left and right guide areas, The magnetic attraction mechanism includes a sliding plate, the sliding plate can slide along the guide groove, the left side of the sliding plate is equipped with a left baffle, the left baffle and the left side of the guide groove are equipped with flexible springs, the right side of the sliding plate is equipped with a right baffle, the right baffle is abutted on the center block under the action of the flexible spring, the right baffle is equipped with a connecting plate, the connecting plate is installed with a fixed shaft, the fixed shaft is rotatably connected with a permanent magnet, the bottom of the permanent magnet is equipped with a connecting rod, the connecting rod is equipped with an elastic ball, the sliding plate is equipped with a plug ball hole matched with the elastic ball, the permanent magnet can rotate around the fixed shaft and make the elastic ball enter the plug ball hole to limit the rotation of the permanent magnet, When the elastic ball is inserted into the plug ball hole, the left end of the permanent magnet abuts on the inner wall of the guide groove, When the permanent magnet rotates around the fixed shaft to be perpendicular to the sliding plate, the right side end surface of the permanent magnet abuts on the right baffle, and the permanent magnet and the sliding plate are fixedly connected through an L-shaped plate.

2. The fixing mechanism of the handheld particulate matter detection device according to claim 1, wherein, The L-shaped plate is fixedly connected on the permanent magnet through an upper fixed bolt; the L-shaped plate is fixedly connected on the sliding plate through a lower fixed bolt.

3. The fixing mechanism of the handheld particulate matter detection device according to claim 1, wherein, The fixed plate is equipped with a rotating shaft hole for accommodating the rotating shaft.

4. The fixing mechanism of the handheld particulate matter detection device according to claim 3, wherein, When the rotating shaft is installed on the two fixed plates, the two ends of the rotating shaft are threadedly connected with lock nuts.

5. The fixing mechanism of the handheld particulate matter detection device according to claim 2, wherein, The detection box includes an outer shell, the surface of the outer shell is equipped with an air inlet plate, the air inlet plate is equipped with a plurality of air inlet holes, the outer shell is installed with a control board, and the control board is connected with a particulate matter sensor.

6. The fixing mechanism of the handheld particulate matter detection device according to claim 5, wherein, The outer shell is also equipped with a storage battery, and the storage battery is connected with the control board.

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