Atmospheric environmental pollution monitoring device and equipment

Abstract

The utility model relates to the field of environmental monitoring, and discloses an atmospheric environmental pollution monitoring device and equipment. The two connecting pipes comprise a first connecting pipe and a second connecting pipe, and the first connecting pipe and the second connecting pipe are both communicated with the sampling unit; the monitor is provided with a first connector used for being connected with the first connecting pipe and a second connector used for being connected with the second connecting pipe; the driving unit is used for switching the on-off state of the first connecting pipe and the first connector and the on-off state of the second connecting pipe and the second connector; at any moment in the process that the driving unit drives the connecting pipes and the connectors to be in the on-off state, at least one connecting pipe and the corresponding connector are kept in the communication state, the sampling unit and the monitor are switched through on-off of the two sets of connecting pipes and the connectors, and at least one set of connecting pipes and the connectors are kept in the communication state at any moment. The monitor realizes continuous monitoring, and the accuracy of monitoring data is improved.

Description

Technical Field

[0001] The utility model relates to the field of environmental monitoring, and particularly to an air environmental pollution monitoring device and equipment. Background Art

[0002] Air pollution monitoring refers to the determination of the types and concentrations of pollutants in the air.

[0003] In the prior art, a monitor is placed in the wild for a long time to monitor air pollution. Through the data obtained by the monitor, the spatio-temporal distribution and variation law of the air pollution degree are observed and analyzed.

[0004] Since the monitor works outdoors for a long time and needs to collect air samples for detection and analysis, the monitor needs to be regularly maintained to ensure the monitoring performance. However, the time consumed for maintenance will affect the continuity and accuracy of the monitoring data. Summary of the Utility Model

[0005] In view of the above deficiencies or defects in the prior art, the present utility model provides an air environmental pollution monitoring device and equipment. Through the on-off switching of two groups of connecting pipes and connectors between the sampling unit and the monitor, the monitor can achieve continuous monitoring, improving the accuracy of the monitoring data.

[0006] To achieve the above object, the present utility model provides an air environmental pollution monitoring device, including:

[0007] A sampling unit for collecting air samples;

[0008] Two connecting pipes, including a first connecting pipe and a second connecting pipe, both the first connecting pipe and the second connecting pipe are communicated with the sampling unit;

[0009] A monitor having a first connector for connecting the first connecting pipe and a second connector for connecting the second connecting pipe;

[0010] A driving unit for driving the first connecting pipe and the second connecting pipe to move, so as to switch the on-off state between the first connecting pipe and the first connector and the on-off state between the second connecting pipe and the second connector;

[0011] Wherein, at any moment during the process of the driving unit driving the on-off state of the connecting pipe and the connector, at least one of the connecting pipes is kept in a communicating state with the corresponding connector.

[0012] In some embodiments, the driving unit includes:

[0013] A driving source for providing driving force;

[0014] An intermittent mechanism having two intermittent power output ends with the same intermittent power output period for the two intermittent power output ends;

[0015] A reciprocating movement mechanism, provided with two sets, the two sets of the reciprocating movement mechanism are correspondingly connected to the two intermittent power output ends of the intermittent mechanism, the first connecting pipe is connected to the displacement power output end of one set of the reciprocating movement mechanism, and the second connecting pipe is connected to the displacement power output end of the other set of the reciprocating movement mechanism;

[0016] During the intermittent operation period of the intermittent mechanism, both the first connecting pipe and the second connecting pipe complete one reciprocating movement.

[0017] In some embodiments, the intermittent movement period of the intermittent mechanism is T, the reciprocating movement period of the first connecting pipe is t1, and the reciprocating movement period of the second connecting pipe is t2;

[0018] wherein, T≥(t1 + t2).

[0019] In some embodiments, T > (t1 + t2).

[0020] In some embodiments, the intermittent mechanism includes:

[0021] A driving wheel, connected to the power output end of the driving source;

[0022] Two driven wheels, each having two states of meshing and non - meshing with the driving wheel, a transmission shaft for transmitting power is fixedly connected to the driven wheel, the two driven wheels are correspondingly connected to the two sets of the reciprocating movement mechanism through the transmission shaft, and at any moment, the driving wheel meshes with at most one of the driven wheels;

[0023] The reciprocating movement mechanism includes:

[0024] A reciprocating lead screw, the position of the reciprocating lead screw is fixed and the reciprocating lead screw has a reciprocating thread;

[0025] A moving member, threadedly connected to the reciprocating lead screw and used for fixedly installing the connecting pipe, the moving member is fixedly connected to the transmission shaft and the connecting pipe is coaxial with the transmission shaft;

[0026] Optionally, the driving wheel is an incomplete cylindrical spur gear and the driven wheel is a cylindrical spur gear, and the displacement distance of the connecting pipe is less than the axial thickness of the driven wheel;

[0027] Optionally, the driving wheel is a dial rod wheel and the driven wheel is a Geneva wheel, and the displacement distance of the connecting pipe is less than the length of the dial rod of the driving wheel.

[0028] In some embodiments, along the axial direction of the driven wheel, a first channel is provided through the rotation axes of the driven wheel, the transmission shaft, and the moving member. One end of the first channel is connected to the corresponding connecting pipe, and a corrugated pipe is connected between the other end and the sampling unit.

[0029] In some embodiments, a support assembly is connected between the driven wheel and the sampling unit. The support assembly includes:

[0030] Two annular turntables, one of the annular turntables is fixedly connected to the sampling unit, and the other annular turntable is rotatably mounted along the axial direction of the driven wheel at the axial end of the driven wheel away from the moving member;

[0031] An elastic air strut, fixedly connected between the two annular turntables;

[0032] Wherein, the corrugated pipe is connected between the two annular turntables and communicates the first channel and the sampling unit through the annular holes of the annular turntables.

[0033] The present utility model also provides an atmospheric environmental pollution monitoring device, including:

[0034] A column;

[0035] A rotary cloud platform, installed on the top of the column;

[0036] A housing, used to install the atmospheric environmental pollution monitoring device as described above. The housing is fixedly installed on the rotary cloud platform and has a cavity. The sampling unit is installed outside the cavity, and the connecting pipe, the monitor, and the driving unit are all installed inside the cavity.

[0037] In some embodiments, a wind direction device is fixedly provided on the housing, and the wind direction indicated by the wind direction device is the same as the sampling orientation of the sampling unit.

[0038] Applying the above technical solutions of the present utility model to an atmospheric environmental pollution monitoring device and equipment has the following effects: Through the on-off switching of two groups of connecting pipes and connectors between the sampling unit and the monitor, at least one group of connecting pipes and connectors remains in a connected state at any moment, enabling the monitor to achieve continuous monitoring and improving the accuracy of monitoring data.

[0039] Other features and advantages of the present utility model will be described in detail in the subsequent specific implementation section. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] Figure 1 is a schematic structural diagram of an atmospheric environmental pollution monitoring device of the present utility model;

[0041] Figure 2It is a three-dimensional structural schematic diagram of an atmospheric environmental pollution monitoring device without a sampling unit shown;

[0042] Figure 3 It is Figure 2 an explosion schematic diagram;

[0043] Figure 4 It is a time-axis schematic diagram of the intermittent period, the reciprocating movement period of the first connecting pipe, and the reciprocating movement period of the second connecting pipe when T < (t1 + t2);

[0044] Figure 5 It is a running schematic diagram of the driving wheel and the driven wheel in a single intermittent period along the axial direction in the first embodiment;

[0045] Figure 6 It is a time-axis schematic diagram of the intermittent period, the reciprocating movement period of the first connecting pipe, and the reciprocating movement period of the second connecting pipe in the first embodiment;

[0046] Figure 7 It is a running schematic diagram of the driving wheel and the driven wheel in a single intermittent period along the axial direction in the second embodiment;

[0047] Figure 8 It is a time-axis schematic diagram of the intermittent period, the reciprocating movement period of the first connecting pipe, and the reciprocating movement period of the second connecting pipe in the second, third, and fourth embodiments;

[0048] Figure 9 It is a running schematic diagram of the driving wheel and the driven wheel in a single intermittent period along the axial direction in the third embodiment;

[0049] Figure 10 It is a running schematic diagram of the driving wheel and the driven wheel in a single intermittent period along the axial direction in the fourth embodiment;

[0050] Figure 11 It is a running schematic diagram of the driving wheel and the driven wheel in a single intermittent period along the axial direction in the fifth embodiment;

[0051] Figure 12 It is a time-axis schematic diagram of the intermittent period, the reciprocating movement period of the first connecting pipe, and the reciprocating movement period of the second connecting pipe in the fifth embodiment;

[0052] Figure 13 It is a running schematic diagram of the driving wheel and the driven wheel in a single intermittent period along the axial direction in the sixth embodiment;

[0053] Figure 14 It is a time-axis schematic diagram of the intermittent period, the reciprocating movement period of the first connecting pipe, and the reciprocating movement period of the second connecting pipe in the sixth embodiment;

[0054] Figure 15It is a schematic diagram of the operation of the driving wheel and the driven wheel in the axial direction within a single intermittent cycle in the seventh embodiment;

[0055] Figure 16 It is a time-axis schematic diagram of the intermittent cycle, the reciprocating movement cycle of the first connecting pipe, and the reciprocating movement cycle of the second connecting pipe in the seventh embodiment;

[0056] Figure 17 It is a schematic structural diagram of an atmospheric environmental pollution monitoring device of the present invention.

[0057] Explanation of reference numerals

[0058] 1. Column; 2. Rotary cloud platform; 3. Shell; 4. Wind direction device; 5. Cavity; 7. Sampling unit; 8. Connecting pipe; 8a. First connecting pipe; 8b. Second connecting pipe; 9. Monitor; 9a. First connecting head; 9b. Second connecting head; 10. Driving unit; 11. Driving source; 12. Intermittent mechanism; 121. Driving wheel; 122. Driven wheel; 123. Transmission shaft; 13. Reciprocating movement mechanism; 131. Reciprocating lead screw; 132. Moving part; 14. First channel; 15. Bellows; 16. Support assembly; 161. Ring turntable; 162. Elastic air support; 17. Suspension rod. Detailed implementation manners

[0059] The following details the specific implementation manners of the present invention. It should be understood that the specific implementation manners described herein are only for explaining and illustrating the present invention, and are not used to limit the present invention.

[0060] In the present invention, unless otherwise stated, the orientation terms such as "upper, lower" generally refer to the orientation in the assembled and used state. "Inner, outer" refer to the inner and outer relative to the contour of each component itself.

[0061] As shown in the atta Figure 1As shown in the figure, in the first aspect, the utility model provides an air environmental pollution monitoring device, which includes a sampling unit 7, two connecting pipes 8, a monitor 9 and a driving unit 10. The sampling unit 7 is used to collect air samples, and both of the two connecting pipes 8 are communicated with the sampling unit 7. The monitor 9 has two connectors, one of the connecting pipes 8 is connected to one of the connectors, and the other connecting pipe 8 is connected to the other connector. For the convenience of description, the two connecting pipes 8 are respectively a first connecting pipe 8a and a second connecting pipe 8b, and both the first connecting pipe 8a and the second connecting pipe 8b are communicated with the sampling unit 7; the two connectors are respectively a first connector 9a and a second connector 9b, the first connector 9a is used to connect the first connecting pipe 8a, and the second connector 9b is used to connect the second connecting pipe 8b. The driving unit 10 is used to drive the connecting pipe 8 to move to switch the on-off states of the first connecting pipe 8a and the first connector 9a and the second connecting pipe 8b and the second connector 9b. At any moment during the process of the driving unit 10 driving the on-off state of the connecting pipe 8 and the connector, at least one connecting pipe 8 remains in a connected state with the corresponding connector, ensuring the continuity of the air environment monitoring by the monitor 9 and the accuracy of the data.

[0062] In the initial state during the use of the monitoring device, the second connecting pipe 8b is communicated with the second connector 9b, and the sampling unit 7 sends the air sample into the monitor 9 through the second connecting pipe 8b and the second connector 9b for analysis and detection. The first connecting pipe 8a is not communicated with the first connector 9a and is used as a standby.

[0063] When it is necessary to repair and maintain the second connecting pipe 8b and the second connector 9b, to ensure that at least one group of the connecting pipe 8 and the connector remains in a connected state, the connecting pipe 8 and the connector in this monitoring device adopt the following four-stage operation mode for cyclic on-off switching.

[0064] The first stage: The driving unit 10 first drives the first connecting pipe 8a to move so that the first connecting pipe 8a is communicated with the first connector 9a, so that the first connecting pipe 8a and the first connector 9a can be used for the transportation of air samples.

[0065] The second stage: The driving unit 10 then drives the second connecting pipe 8b to move so that the second connecting pipe 8b is disconnected from the second connector 9b. At this time, the second connecting pipe 8b and the second connector 9b can be repaired and maintained, and after the repair and maintenance of the second connecting pipe 8b and the second connector 9b, they are used as a standby.

[0066] The third stage: When the first connecting pipe 8a and the first connector 9a need to be repaired and maintained after being connected and used for a period of time, the driving unit 10 needs to first drive the second connecting pipe 8b to move so that the second connecting pipe 8b is communicated with the second connector 9b.

[0067] Fourth stage: The driving unit 10 drives the first connecting pipe 8a to move again to disconnect the first connecting pipe 8a from the first connector 9a until it returns to the initial state, and then the first connecting pipe 8a and the first connector 9a are repaired and maintained and used as spares again.

[0068] In summary, the monitoring device adopts a four-stage operation mode of "the first connecting pipe 8a moves and is connected to the first connector 9a → the second connecting pipe 8b moves and is disconnected from the second connector 9b → the second connecting pipe 8b moves and is connected to the second connector 9b → the first connecting pipe 8a moves and is disconnected from the first connector 9a" to switch the on-off state of the connecting pipe 8 and the connector. In specific use, the initial state of the monitoring device can be any one of the above four stages. In the present utility model, the starting state of the first stage is taken as the initial state of the device for illustration.

[0069] Specifically, in combination with Attached Figure 2 、Attached Figure 3 , the driving unit 10 includes a driving source 11, an intermittent mechanism 12 and a reciprocating movement mechanism 13. The driving source 11 is used to provide driving force. The intermittent mechanism 12 has two intermittent power output ends, and the intermittent power output periods of the two intermittent power output ends are the same. There are two sets of reciprocating movement mechanisms 13, and the two sets of reciprocating movement mechanisms 13 are correspondingly connected to the two intermittent power output ends of the intermittent mechanism 12, that is: one set of reciprocating movement mechanisms 13 is connected to one intermittent power output end, and the other set of reciprocating movement mechanisms 13 is connected to the other intermittent power output end. The first connecting pipe 8a is connected to the displacement power output end of one set of reciprocating movement mechanisms 13, and the second connecting pipe 8b is connected to the displacement output end of the other set of reciprocating displacement mechanisms. During the intermittent operation period of the intermittent mechanism 12, both the first connecting pipe 8a and the second connecting pipe 8b complete one reciprocating movement. The intermittent movement period of the intermittent mechanism 12 is T, the reciprocating movement period of the first connecting pipe 8a is t1, and the reciprocating movement period of the second connecting pipe 8b is t2, where T≥(t1 + t2) to ensure that during the intermittent operation period of the intermittent mechanism 12, both the first connecting pipe 8a and the second connecting pipe 8b complete one reciprocating movement. Among them, the reciprocating movement period of the first connecting pipe 8a is the sum of the moving times of the first connecting pipe 8a in the first stage and the fourth stage of the four-stage operation mode, and the operation times of the first stage and the fourth stage are both t1 / 2. The reciprocating movement period of the second connecting pipe 8b is the sum of the moving times of the second connecting pipe 8b in the second stage and the third stage of the four-stage operation mode, and the operation times of the second stage and the third stage are both t2 / 2.

[0070] Specifically, when T < (t1 + t2), as shown in Attached Figure 4As shown, when the fourth stage of the four-stage operation mode within the first intermittent motion cycle T1, i.e., "the first connecting pipe 8a moves and disconnects from the first connector 9a", has not been completed, the intermittent mechanism 12 has already entered the first stage of the four-stage operation within the second intermittent motion cycle T2, i.e., "the first connecting pipe 8a moves and connects to the first connector 9a". That is, the first connecting pipe 8a moves and connects to the first connector 9a before it has returned to its initial state. During the first stage, the moving distance of the first connecting pipe 8a is constant. Since the first connecting pipe 8a has not returned to its initial state, after the first stage of the four-stage operation within the second intermittent motion cycle T2 ends, the first connecting pipe 8a and the first connector 9a will be overly connected, which easily causes damage to the first connecting pipe 8a and the first connector 9a.

[0071] When T = (t1 + t2), the above four-stage operation mode can just be completed within the intermittent motion cycle of the intermittent mechanism 12.

[0072] Preferably, T > (t1 + t2), so that there is a time difference between T and (t1 + t2), which can ensure that the above four-stage operation mode can be completed within the intermittent motion cycle of the intermittent mechanism 12 and leave time for the transition between stages.

[0073] Specifically, the present invention discloses the following embodiments of the drive unit 10.

[0074] Embodiment 1:

[0075] Combined with Fig. Figure 5 、Fig. Figure 6 The intermittent mechanism 12 includes a driving wheel 121 and a driven wheel 122. The driving wheel 121 is connected to the power output end of the driving source 11, and the driving source 11 adopts a stepping motor. There are two driven wheels 122, and both of them have two states: meshing and non-meshing with the driving wheel 121. A transmission shaft 123 for transmitting power is fixedly connected to the driven wheel 122. The two driven wheels 122 are correspondingly connected to two sets of reciprocating moving mechanisms 13 through the transmission shaft 123. At any moment, the driving wheel 121 meshes with at most one of the driven wheels 122. It should be noted that the meaning of "the driving wheel 121 meshes with at most one of the driven wheels 122 at any moment" is that: at this moment, the driving wheel 121 can only drive one of the driven wheels 122 to rotate when it continues to rotate, and will not drive the two driven wheels 122 to rotate simultaneously. Specifically, at a certain moment, the driving wheel 121 just disengages from one of the driven wheels 122 and just starts to mesh with the other driven wheel 122. From a structural perspective, at this moment, the driving wheel 121 is in a meshing connection state with both of the driven wheels 122; from an operating perspective, at this moment, the driving wheel 121 only meshes with one of the driven wheels 122.

[0076] In this embodiment, the two driven wheels 122 are distributed in the up and down directions. The upper driven wheel 122 is connected to the first connecting tube 8a through a group of reciprocating mechanisms 13, and the lower driven wheel 122 is connected to the second connecting tube 8b through a group of reciprocating mechanisms 13.

[0077] The reciprocating mechanism 13 comprises a reciprocating screw rod 131 and a moving member 132, the position of the reciprocating screw rod 131 is fixed and the reciprocating screw rod 131 has a reciprocating thread, the moving member 132 is threadedly connected to the reciprocating screw rod 131 and the moving member 132 is used for fixing and installing the connecting pipe 8, the moving member 132 is fixedly connected to the transmission shaft 123 and the connecting pipe 8 is coaxial with the transmission shaft 123, that is, the reciprocating movement cycle of the moving member 132 is the same as that of the connecting pipe 8. In the present embodiment, the reciprocating screw rod 131 has an internal thread, and the moving member 132 has an external thread. The stroke that the moving member 132 and the connecting pipe 8 pass through in half a reciprocating movement cycle is the displacement distance of the connecting pipe 8. In the present embodiment, the moving member 132 and the connecting pipe 8 move in the left-right direction, and the displacement amount of the moving member 132 and the connecting pipe 8 from the leftmost side to the rightmost side is the displacement distance of the connecting pipe 8. Since the position of the reciprocating screw 131 is fixed, the driven wheel 122 transmits the rotational power to the moving member 132 through the transmission shaft 123, so that the moving member 132 can be rotated and fed along the reciprocating screw 131, so that the connecting tube 8 can be rotated while moving, so as to facilitate the connection between the connecting tube 8 and the connector. In addition, since the reciprocating screw 131 is provided with a reciprocating thread, the moving member 132 can be reciprocated left and right by continuously rotating in one direction relative to the reciprocating screw, without switching the rotation direction of the moving member 132.

[0078] In this embodiment, the driving wheel 121 and the driven wheel 122 are both cylindrical spur gears so that the driving wheel 121 and the driven wheel 122 can be offset along the axial direction, wherein the driving wheel 121 is an incomplete cylindrical spur gear. Since the moving member 132 drives the driven wheel 122 to move through the transmission shaft 123 during the movement, in order to ensure the meshing reliability between the driving wheel 121 and the driven wheel 122, the axial thickness of the driven wheel 122 is set to be not less than the displacement distance of the connecting pipe 8, so as to avoid the driving wheel 121 and the driven wheel 122 from being completely offset and disengaged along the axial direction.

[0079] The upper driven wheel 122 is the driven wheel 122 connected to the first connecting tube 8a, the lower driven wheel 122 is the driven wheel 122 connected to the second connecting tube 8b, and the rotation direction of the driving wheel 121 is clockwise. Figure 5Among them, A is the starting state of the first stage. At this time, the driving wheel 121 meshes with the upper driven wheel 122, and the driving wheel 121 does not mesh with the lower driven wheel 122. Among them, the upper driven wheel 122 meshes with the circumferential center of the toothed part of the driving wheel 121; B is the starting state of the second stage. At this time, the driving wheel 121 just disengages from the upper driven wheel 122 and the driving wheel 121 just starts to mesh with the lower driven wheel 122; C is the starting state of the third stage. At this time, the driving wheel 121 meshes with the lower driven wheel 122 and the driving wheel 121 does not mesh with the upper driven wheel 122. Among them, the lower driven wheel 122 meshes with the circumferential center of the toothed part of the driving wheel 121; D is the starting state of the fourth stage. At this time, the driving wheel 121 just disengages from the lower driven wheel 122 and the driving wheel 121 just starts to mesh with the upper driven wheel 122. In this embodiment, the driving wheel 121 rotates 90° from A to B, from B to C, from C to D, and from D to A.

[0080] In this embodiment, the circumferential angle of the toothed part on the driving wheel 121 is 180°. The rotation period of the driving wheel 121 is the intermittent operation period T of the intermittent mechanism 12, and the intermittent operation period T of the intermittent mechanism 12 is exactly the sum of the reciprocating movement period t1 of the first connecting pipe 8a and the reciprocating movement period t2 of the second connecting pipe 8b, that is: T=(t1 + t2), and t1 = t2.

[0081] Embodiment 2:

[0082] Combined with the attached Figure 7 and the attached Figure 8 , the difference from Embodiment 1 is that the circumferential angle of the toothed part on the driving wheel 121 is less than 180°. In this embodiment, the circumferential angle of the toothed part on the driving wheel 121 is 120°.

[0083] In this embodiment, A is the starting state of the first stage. At this time, the driving wheel 121 meshes with the upper driven wheel 122, and the driving wheel 121 does not mesh with the lower driven wheel 122. Among them, the upper driven wheel 122 meshes at the circumferential center of the toothed part of the driving wheel 121; B is the ending state of the first stage. At this time, the driving wheel 121 just disengages from the upper driven wheel 122, and the driving wheel 121 does not mesh with the lower driven wheel 122; C is the starting state of the second stage. At this time, the driving wheel 121 starts to mesh with the lower driven wheel 122, and the driving wheel 121 does not mesh with the upper driven wheel 122; D is the starting state of the third stage. At this time, the driving wheel 121 meshes with the lower driven wheel 122, and the driving wheel 121 does not mesh with the upper driven wheel 122. Among them, the lower driven wheel 122 meshes at the circumferential center of the toothed part of the driving wheel 121; E is the ending state of the third stage. At this time, the driving wheel 121 just disengages from the lower driven wheel 122, and the driving wheel 121 does not mesh with the upper driven wheel 122; F is the starting state of the fourth stage. At this time, the driving wheel 121 just starts to mesh with the upper driven wheel 122, and the driving wheel 121 does not mesh with the lower driven wheel 122. In this embodiment, the driving wheel 121 rotates 60° from A to B, from B to C, from C to D, from D to E, from E to F, and from F to A.

[0084] In this embodiment, the rotation period of the driving wheel 121 is the intermittent operation period T of the intermittent mechanism 12. The reciprocating movement period t1 of the first connecting pipe 8a is the sum of the times of the two parts of the driving wheel 121 from A to B and from F to A. The reciprocating movement period t1 of the first connecting pipe 8a is the sum of the times of the two parts of the driving wheel 121 from C to D and from D to E. The intermittent operation period T of the intermittent mechanism 12 is greater than the sum of the reciprocating movement period t1 of the first connecting pipe 8a and the reciprocating movement period t2 of the second connecting pipe 8b, that is: T > (t1 + t2).

[0085] In this embodiment, there is a time difference between T and (t1 + t2). The time difference between T and (t1 + t2) is distributed between the first stage and the second stage and between the third stage and the fourth stage, enabling the first connecting pipe 8a and the first connector 9a, as well as the second connecting pipe 8b and the second connector 9b, to be in a connected state simultaneously. And between the first stage and the second stage and between the third stage and the fourth stage, neither the first connecting pipe 8a nor the second connecting pipe 8b moves. It should be noted that at the end of the first stage, the first connecting pipe 8a and the first connector 9a are connected, and the second connecting pipe 8b and the second connector 9b are disconnected. At this time, the gas sample received by the monitor 9 is the gas originally present in the first connecting pipe 8a, rather than the atmospheric environment sample directly sampled by the sampling unit 7. Therefore, there is an error in the data detected and analyzed by the monitor 9 at the end of the first stage. Similarly, at the end of the third stage, the second connecting pipe 8b and the second connector 9b are connected, and the first connecting pipe 8a and the first connector 9a are disconnected. At this time, the gas sample received by the monitor 9 is the gas originally present in the second connecting pipe 8b, rather than the atmospheric environment sample directly sampled by the sampling unit 7. Therefore, there is also an error in the data detected and analyzed by the monitor 9 at the end of the third stage.

[0086] Extend the transition time t3 between the first stage and the second stage (i.e., the time from B to C in this embodiment) and the transition time t4 between the third stage and the fourth stage (i.e., the time from E to F in this embodiment), so that during the transition time between the first stage and the second stage and between the third stage and the fourth stage, both the first connecting pipe 8a and the first connector 9a and the second connecting pipe 8b and the second connector 9b are connected. At this time, the data monitored and analyzed by the monitor 9 is the common data transmitted by the first connecting pipe 8a and the second connecting pipe 8b. Since the atmospheric sample between the first stage and the second stage contains the atmospheric environment sample directly sampled by the sampling unit 7 and transported by the second connecting pipe 8b, and the atmospheric sample between the third stage and the fourth stage contains the atmospheric environment sample directly sampled by the sampling unit 7 and transported by the first connecting pipe 8a, the data error during the alternation between the first stage and the second stage and between the third stage and the fourth stage can be reduced.

[0087] Embodiment Three:

[0088] Combined with the attached Figure 8 、attached Figure 9 , the difference from Embodiment One is that the driving wheel 121 has n toothed portions with the same circumferential angle. The toothed portions are arranged in a circumferential array along the driving wheel 121, and the circumferential angle of the toothless portion between adjacent toothed portions is the same as that of the toothed portion. Specifically, the ratio of the rotation period of the driving wheel 121 to the intermittent motion period is n.

[0089] In this embodiment, the driving wheel 121 has 3 toothed portions. The circumferential angle of a single toothed portion is 60°, and the circumferential angle of the toothless portion between two toothed portions is 60°. The ratio of the rotation period of the driving wheel 121 to the intermittent motion period is 3.

[0090] In this embodiment, the driving wheel 121 rotates 30° from A to B, from B to C, from C to D, and from D to A.

[0091] In this embodiment, T = (t1 + t2), and t1 = t2.

[0092] Embodiment Four:

[0093] Combined with the attached Figure 8 and the attached Figure 10 , the difference from Embodiment Three is that the driving wheel 121 has 4 toothed portions. The circumferential angle of a single toothed portion is 45°, and the circumferential angle of the toothless portion between two toothed portions is 45°. The ratio of the rotation period of the driving wheel 121 to the intermittent motion period is 4.

[0094] In this embodiment, the driving wheel 121 rotates 22.5° from A to B, from B to C, from C to D, and from D to A.

[0095] In this embodiment, T = (t1 + t2), and t1 = t2.

[0096] Embodiment Five:

[0097] Combined with the attached Figure 11 and the attached Figure 12 shown, the difference from Embodiment One is that in this embodiment, the intermittent mechanism 12 adopts a Geneva wheel mechanism. Specifically, the driving wheel 121 is a lifting rod wheel, the driven wheel 122 is a Geneva wheel, and the displacement distance of the connecting pipe 8 is less than the length of the lifting rod of the driving wheel 121.

[0098] In this embodiment, A is the starting state of the first stage. At this time, the driving wheel 121 meshes with the upper driven wheel 122, and the driving wheel 121 does not mesh with the lower driven wheel 122; B is the ending state of the first stage. At this time, the driving wheel 121 just disengages from the upper driven wheel 122, and the driving wheel 121 does not mesh with the lower driven wheel 122; C is the starting state of the second stage. At this time, the driving wheel 121 starts to mesh with the lower driven wheel 122, and the driving wheel 121 does not mesh with the upper driven wheel 122; D is the starting state of the third stage. At this time, the driving wheel 121 meshes with the lower driven wheel 122, and the driving wheel 121 does not mesh with the upper driven wheel 122; E is the ending state of the third stage. At this time, the driving wheel 121 just disengages from the lower driven wheel 122, and the driving wheel 121 does not mesh with the upper driven wheel 122; F is the starting state of the fourth stage. At this time, the driving wheel 121 just starts to mesh with the upper driven wheel 122, and the driving wheel 121 does not mesh with the lower driven wheel 122. In this embodiment, the driving wheel 121 rotates 45° from A to B, from C to D, from D to E, and from F to A. The driving wheel 121 rotates 90° from B to C and from E to F.

[0099] In this embodiment, the rotation period of the driving wheel 121 is the intermittent operation period T of the intermittent mechanism 12. The reciprocating movement period t1 of the first connecting pipe 8a is the sum of the times of the two parts of the driving wheel 121 from A to B and from F to A. The reciprocating movement period t2 of the second connecting pipe 8b is the sum of the times of the two parts of the driving wheel 121 from C to D and from D to E. The intermittent operation period T of the intermittent mechanism 12 is greater than the sum of the reciprocating movement period t1 of the first connecting pipe 8a and the reciprocating movement period t2 of the second connecting pipe 8b, that is: T > (t1 + t2), and there is a transition time when the first stage and the second stage alternate and when the third stage and the fourth stage alternate, which can reduce the data error when the first stage and the second stage alternate and when the third stage and the fourth stage alternate.

[0100] In this embodiment, the transition time t3 between the first stage and the second stage, the transition time t4 between the third stage and the fourth stage, the reciprocating movement period t1 of the first connecting pipe 8a, and the reciprocating movement period t2 of the second connecting pipe 8b are all equal, and T = (t1 + t2 + t3 + t4).

[0101] Embodiment Six:

[0102] Combined with the attached Figure 13 、attached Figure 14, the difference from the fifth embodiment is that: in this embodiment, A is the starting state of the first stage. At this time, the driving wheel 121 meshes with the upper driven wheel 122 and the driving wheel 121 does not mesh with the lower driven wheel 122; B is the ending state of the first stage and the starting state of the second stage. At this time, the driving wheel 121 just disengages from the upper driven wheel 122 and the driving wheel 121 just meshes with the lower driven wheel 122; C is the starting state of the third stage. At this time, the driving wheel 121 meshes with the lower driven wheel 122 and the driving wheel 121 does not mesh with the upper driven wheel 122; D is the ending state of the third stage. At this time, the driving wheel 121 just disengages from the lower driven wheel 122 and the driving wheel 121 does not mesh with the upper driven wheel 122; E is the starting state of the fourth stage. At this time, the driving wheel 121 just meshes with the upper driven wheel 122 and the driving wheel 121 does not mesh with the lower driven wheel 122. In this embodiment, the driving wheel 121 rotates 45° from A to B, from B to C, from C to D, and from E to A, and the driving wheel 121 rotates 180° from D to E.

[0103] In this embodiment, the rotation period of the driving wheel 121 is the intermittent operation period T of the intermittent mechanism 12. The reciprocating movement period t1 of the first connecting pipe 8a is the sum of the times of two parts of the driving wheel 121 from A to B and from E to A. The reciprocating movement period t2 of the second connecting pipe 8b is the sum of the times of two parts of the driving wheel 121 from B to C and from C to D. The intermittent operation period T of the intermittent mechanism 12 is greater than the sum of the reciprocating movement period t1 of the first connecting pipe 8a and the reciprocating movement period t2 of the second connecting pipe 8b, that is: T > (t1 + t2), and there is a transition time t4 when the third stage and the fourth stage alternate, which can reduce the data error when the third stage and the fourth stage alternate.

[0104] In this embodiment, T = (t1 + t2 + t4), and t4 = (t1 + t2).

[0105] Embodiment Seven:

[0106] Combined with the attached Figure 15 、attached Figure 16, the difference from the fifth embodiment is that: in this embodiment, A is the starting state of the first stage. At this time, the driving wheel 121 is engaged with the upper driven wheel 122 and the driving wheel 121 is not engaged with the lower driven wheel 122; B is the ending state of the first stage. At this time, the driving wheel 121 just disengages from the upper driven wheel 122 and the driving wheel 121 is not engaged with the lower driven wheel 122; C is the starting state of the second stage. At this time, the driving wheel 121 just engages with the lower driven wheel 122 and the driving wheel 121 is not engaged with the upper driven wheel 122; D is the starting state of the third stage. At this time, the driving wheel 121 is engaged with the lower driven wheel 122 and the driving wheel 121 is not engaged with the upper driven wheel 122; E is the ending state of the third stage and the starting state of the fourth stage. At this time, the driving wheel 121 just disengages from the lower driven wheel 122 and the driving wheel 121 just starts to engage with the upper driven wheel 122. In this embodiment, the driving wheel 121 rotates 45° from A to B, from C to D, from D to E, and from E to A, and the driving wheel 121 rotates 180° from B to C.

[0107] In this embodiment, the rotation period of the driving wheel 121 is the intermittent operation period T of the intermittent mechanism 12. The reciprocating movement period t1 of the first connecting pipe 8a is the sum of the times of the two parts of the driving wheel 121 from A to B and from E to A. The reciprocating movement period t2 of the second connecting pipe 8b is the sum of the times of the two parts of the driving wheel 121 from C to D and from D to E. The intermittent operation period T of the intermittent mechanism 12 is greater than the sum of the reciprocating movement period t1 of the first connecting pipe 8a and the reciprocating movement period t2 of the second connecting pipe 8b, that is: T > (t1 + t2), and there is a transition time t3 when the first stage and the second stage alternate, which can reduce the data error when the first stage and the second stage alternate.

[0108] In this embodiment, T = (t1 + t2 + t3), and t3 = (t1 + t2).

[0109] In summary, in the second and fifth embodiments of the driving unit 10, transition times are provided during the alternations between the first and second phases and between the third and fourth phases, so as to reduce data errors during the alternations between the first and second phases and between the third and fourth phases, and improve the accuracy of data. Additionally, on the premise that the intermittent operation period T of the intermittent mechanism 12 and the displacement distance of the connecting pipe 8 are the same, in the second embodiment, T:(t1 + t2) = 3:2, and in the fifth embodiment, T:(t1 + t2) = 2:1. In comparison, the moving time of the first connecting pipe 8a and the second connecting pipe 8b in the second embodiment is longer, that is, the moving speeds of the first connecting pipe 8a and the second connecting pipe 8b are slower, and the driving unit 10 operates more stably. In the fifth embodiment, the switching response speed of the first connecting pipe 8a and the second connecting pipe 8b is faster, and more alternation times between the first and second phases and between the third and fourth phases are provided, which better reduces data errors during the alternations between the first and second phases and between the third and fourth phases.

[0110] In a further setting, along the axial direction of the driven wheel 122, a first channel 14 is provided through the rotation axes of the driven wheel 122, the transmission shaft 123, and the moving member 132. One end of the first channel 14 is connected to the corresponding connecting pipe 8, and a bellows 15 is connected between the other end and the sampling unit 7. Since the connecting pipe 8 rotates with the moving member 132 and the driven wheel 122, the first channel 14 is provided at the rotation axes of the driven wheel 122, the transmission shaft 123, and the moving member 132, so that the first channel 14 can rotate therewith, avoiding the twisting of the first channel 14 and causing channel blockage to affect the transmission of atmospheric samples. Additionally, the connecting pipe 8 also moves, and the connection between the sampling unit 7 and the first channel 14 can be maintained through the setting of the bellows 15.

[0111] In a further setting, a support assembly 16 is connected between the driven wheel 122 and the sampling unit 7. The support assembly 16 includes two annular turntables 161 and an elastic air support 162. One of the annular turntables 161 is fixedly connected to the sampling unit 7, and the other annular turntable 161 is rotatably mounted on the axial end of the driven wheel 122 away from the moving member 132 along the axial direction of the driven wheel 122. The elastic air support 162 is fixedly connected between the two annular turntables 161. The bellows 15 is connected between the annular turntables 161 and connects the first channel 14 and the sampling unit 7 through the annular holes of the annular turntables 161.

[0112] Due to the rotational mating relationship between the driven wheel 122 and the connected annular turntable 161, as well as the fixed connection relationship between another annular turntable 161 and the sampling unit 7, during the rotation of the driven wheel 122, the support assembly 16 will not rotate with the driven wheel 122, thus avoiding the rotation of the bellows 15 and causing blockage inside the bellows 15. The elastic air support 162 is provided to connect the two annular turntables 161 on the one hand and prevent relative rotation between the two annular turntables 161. On the other hand, the driven wheel 122 will move and drive the connected annular turntable 161 to move. The elastic air support 162 has a telescopic function and can adapt to the change in the distance between the two annular turntables 161.

[0113] As shown in the appendix Figure 17 As shown in the figure, in the second aspect, the present invention also provides an air environmental pollution monitoring device, including a column 1, a rotating cloud platform 2, a housing 3, and a wind direction device 4. The rotating cloud platform 2 is installed on the top of the column 1. The housing 3 is fixedly installed on the rotating cloud platform 2 and has a cavity 5. The sampling unit 7 of the monitoring device is installed outside the cavity 5 in the housing 3. The connecting pipe 8, the monitor 9, and the driving unit 10 are all installed in the cavity 5. Among them, the reciprocating lead screw 131 in the driving unit 10 is fixed on the side wall of the cavity 5 through a suspension rod 17. The wind direction indication direction of the wind direction device 4 is the same as the sampling orientation of the sampling unit 7. This monitoring device is used for high-altitude monitoring of the air environmental pollution status.

[0114] The preferred embodiments of the present invention have been described in detail above. However, the present invention is not limited to the specific details in the above embodiments. Within the technical concept scope of the present invention, various simple modifications can be made to the technical solutions of the present invention, and these simple modifications all belong to the protection scope of the present invention.

[0115] In addition, it should be noted that, among the various specific technical features described in the above specific embodiments, without contradiction, they can be combined in any appropriate way. To avoid unnecessary repetition, the present invention will not separately describe various possible combination methods.

[0116] Furthermore, any combination can be made between various different embodiments of the present invention, as long as it does not violate the idea of the present invention, and it should also be regarded as the content disclosed by the present invention.

Claims

1. An atmospheric environmental pollution monitoring device, characterized in that, Comprising: A sampling unit (7) for collecting atmospheric samples; Two connecting pipes (8), including a first connecting pipe (8a) and a second connecting pipe (8b), both the first connecting pipe (8a) and the second connecting pipe (8b) are communicated with the sampling unit (7); A monitor (9) having a first connector (9a) for connecting the first connecting pipe (8a) and a second connector (9b) for connecting the second connecting pipe (8b); A driving unit (10) for driving the first connecting pipe (8a) and the second connecting pipe (8b) to move so as to switch the on-off state between the first connecting pipe (8a) and the first connector (9a) and the on-off state between the second connecting pipe (8b) and the second connector (9b); Wherein, at any moment during the process of the driving unit (10) driving the on-off state between the connecting pipe (8) and the connector, at least one of the connecting pipes (8) remains in a communicating state with the corresponding connector.

2. The atmospheric environmental pollution monitoring device according to claim 1, characterized in that, The driving unit (10) includes: A driving source (11) for providing driving force; An intermittent mechanism (12) having two intermittent power output ends with the same intermittent power output period; Two sets of reciprocating movement mechanisms (13), the two sets of reciprocating movement mechanisms (13) are correspondingly connected to the two intermittent power output ends of the intermittent mechanism (12), the first connecting pipe (8a) is connected to the displacement power output end of one set of the reciprocating movement mechanisms (13), and the second connecting pipe (8b) is connected to the displacement power output end of the other set of the reciprocating movement mechanisms (13); During the intermittent operation period of the intermittent mechanism (12), both the first connecting pipe (8a) and the second connecting pipe (8b) complete one reciprocating movement.

3. The atmospheric environmental pollution monitoring device according to claim 2, characterized in that, The intermittent movement period of the intermittent mechanism (12) is T, the reciprocating movement period of the first connecting pipe (8a) is t1, and the reciprocating movement period of the second connecting pipe (8b) is t2; Wherein, T≥(t1 + t2).

4. The atmospheric environmental pollution monitoring device according to claim 3, characterized in that, T > (t1 + t2).

5. The atmospheric environmental pollution monitoring device according to any one of claims 2 to 4, characterized in that, The intermittent mechanism (12) includes: A driving wheel (121) connected to the power output end of the driving source (11); Two driven wheels (122) each having two states of meshing and non-meshing with the driving wheel (121), a transmission shaft (123) for transmitting power is fixedly connected to the driven wheel (122), and the two driven wheels (122) are correspondingly connected to the two sets of reciprocating movement mechanisms (13) through the transmission shaft (123), and at any moment, the driving wheel (121) meshes with at most one of the driven wheels (122); The reciprocating movement mechanism (13) includes: A reciprocating lead screw (131), the position of the reciprocating lead screw (131) is fixed and the reciprocating lead screw (131) has a reciprocating thread; A moving member (132) is threadedly connected to the reciprocating lead screw (131) and is used for fixedly installing the connecting pipe (8). The moving member (132) is fixedly connected to the transmission shaft (123), and the connecting pipe (8) is coaxial with the transmission shaft (123). Optionally, the driving wheel (121) is an incomplete cylindrical spur gear and the driven wheel (122) is a cylindrical spur gear, and the displacement distance of the connecting pipe (8) is less than the axial thickness of the driven wheel (122). Optionally, the driving wheel (121) is a lever wheel and the driven wheel (122) is a grooved wheel, and the displacement distance of the connecting pipe (8) is less than the length of the lever of the driving wheel (121).

6. The atmospheric environmental pollution monitoring device according to claim 5, wherein In the axial direction of the driven wheel (122), a first channel (14) is provided through the rotation axes of the driven wheel (122), the transmission shaft (123), and the moving member (132). One end of the first channel (14) is communicated with the corresponding connecting pipe (8), and a corrugated pipe (15) is connected between the other end and the sampling unit (7).

7. The atmospheric environmental pollution monitoring device according to claim 6, characterized in that, A support assembly (16) is connected between the driven wheel (122) and the sampling unit (7). The support assembly (16) includes: Two annular turntables (161), one of the annular turntables (161) is fixedly connected to the sampling unit (7), and the other annular turntable (161) is rotatably installed in the axial direction of the driven wheel (122) at the axial end of the driven wheel (122) away from the moving member (132). An elastic air strut (162) is fixedly connected between the two annular turntables (161). Wherein, the corrugated pipe (15) is connected between the two annular turntables (161) and communicates the first channel (14) and the sampling unit (7) through the annular holes of the annular turntables (161).

8. An atmospheric environmental pollution monitoring device, characterized in that, Comprising: A column (1); A rotary cloud platform (2) installed on the top of the column (1); A housing (3) for installing the air environmental pollution monitoring device according to any one of claims 1 to 7. The housing (3) is fixedly installed on the rotary cloud platform (2) and has a cavity (5). The sampling unit (7) is installed outside the cavity (5), and the connecting pipe (8), the monitor (9), and the driving unit (10) are all installed in the cavity (5).

9. The atmospheric environmental pollution monitoring device according to claim 8, wherein, A wind direction device (4) is fixedly provided on the housing (3), and the wind direction indicated by the wind direction device (4) is the same as the sampling orientation of the sampling unit (7).

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