Atmospheric monitoring sampling device

Abstract

The utility model relates to the technical field of atmospheric monitoring and sampling, in particular to an atmospheric monitoring and sampling device which comprises a monitoring main shell, a sampling pipe arranged on the monitoring main shell, a cutter arranged on the sampling pipe, a sampling head arranged on the cutter, a fixed seat arranged on the monitoring main shell, a sliding plate and a clamping column connected to the fixed seat in a sliding manner, the sliding plate is provided with a limiting block and an anti-collision protective cover, the anti-collision protective cover is provided with a protective opening, the clamping column is provided with a column cap ring and a spring, the sampling pipe is provided with an upper fixing plate and a lower fixing plate, the lower fixing plate is provided with an inner cavity opening, and an inclined rib plate is arranged in the inner cavity opening. The situation that the monitoring sampling device is mistakenly started due to the fact that an operator collides with a power switch inattention slightly is avoided, and the situation that the cutter shakes and even the structural stability among the upper end and the lower end of the sampling pipe, the cutter and the monitoring main shell is reduced and fractured is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of atmosphere monitoring and sampling, in particular to an atmosphere monitoring and sampling device. Background Art

[0002] Atmospheric particulate matter monitoring refers to the process of collecting, analyzing and evaluating solid particulate matter suspended in the air through scientific methods and technical means. Among them, the vertical atmospheric particulate matter monitoring sampling device with a cutter is an advanced environmental monitoring equipment.

[0003] The vertical atmospheric particulate matter monitoring sampling device with a cutter is generally composed of a monitoring main shell and a cutter, a sampling head, a sampling tube, and a cutter. A display screen, panel buttons, a data interface, a power interface, and a power switch are set on the shell surface of the monitoring main shell. A laser detection unit and an air pump are set inside the monitoring main shell.

[0004] The general principle of use is that the vacuum pump will pass through the sampling tube and form a suction force in the sampling head, and a certain amount of solid particles in the external environment atmosphere will be drawn into the cutter. The cutter is based on the principle of aerodynamics. By controlling the air flow speed and direction, atmospheric particles of different particle sizes are subjected to different resistance and centrifugal force inside the cutter, thereby achieving particle size classification. Then the atmospheric particles of different particle sizes enter the laser detection unit through the sampling tube, and the concentration of the sampled atmospheric particles is monitored by the laser scattering method. The detected concentration signal is then transmitted to an external computer through the signal line connected to the data interface. At the same time, the monitored concentration value will also be displayed on the display.

[0005] At present, the power switch of the existing vertical atmospheric particulate matter monitoring and sampling device with a cutter is generally a boat-shaped switch, and the power switch is exposed on the outer surface of the monitoring main shell. If the power interface has been connected to the external power cord, before monitoring is carried out, the operator may accidentally bump into the power switch, which may cause the monitoring sampling device itself to start up incorrectly.

[0006] In addition, the existing vertical atmospheric particulate matter monitoring and sampling device with a cutter generally has a cylindrical structure made of metal material as a whole, and the cutter and the main monitoring shell are connected by only a single slender sampling tube. If it is subjected to strong winds outdoors or the cutter is hit by foreign objects, it will cause the cutter to shake, and even cause the structural stability between the upper and lower ends of the sampling tube and the cutter and the main monitoring shell to be reduced and broken. Utility Model Content

[0007] The purpose of the utility model is to solve the above-mentioned shortcomings in the prior art and to propose an atmosphere monitoring sampling device.

[0008] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0009] An atmospheric monitoring sampling device is designed, comprising a monitoring main housing, a sampling tube provided on the monitoring main housing, a cutter provided on the sampling tube, a sampling head provided on the cutter, and a display screen, panel buttons, a data interface, a power interface, and a power switch provided on the monitoring main housing;

[0010] The monitoring main housing is provided with a fixing seat, a slide plate and a clamping column are slidably connected to the fixing seat, a limit block and a collision-resistant shield are provided on the slide plate, a protective opening is opened on the collision-resistant shield, and a column cap ring and a spring are provided on the clamping column;

[0011] The sampling tube is provided with an upper fixing plate and a lower fixing plate, the lower fixing plate is provided with an inner cavity opening, and an inclined rib is provided in the inner cavity opening.

[0012] Furthermore, a sliding opening is provided on the fixing seat, and the sliding opening is slidably connected to the slide plate, and the top view cross section of the sliding opening and the slide plate is a rectangular cross section.

[0013] Furthermore, the number of the limit blocks is two and they are symmetrically arranged at both ends of the slide, and the number of the clamping columns is two and they are symmetrical on the left and right.

[0014] Furthermore, the two ends of the spring are fixed to the fixing seat and the column cap ring respectively, the slide plate is provided with a first clamping slot and a second clamping slot, and the clamping column passes through the fixing seat and is clamped to the second clamping slot.

[0015] Furthermore, a finger pressure groove is provided on the column cap ring, and the finger pressure groove is an arc-shaped inner groove as a whole, and an elastic layer is provided in the finger pressure groove.

[0016] Furthermore, the upper fixing plates are triangular in structure as a whole and are four in number and arranged circumferentially. The upper fixing plates are disposed between the outer wall of the sampling tube and the lower end surface of the cutter.

[0017] Furthermore, the lower fixing plate is a triangular structure as a whole and is arranged in four circles. The lower fixing plate is arranged between the monitoring main shell and the sampling tube. The inner cavity opening passes through the lower fixing plate. The inclined ribs are arranged in the inner cavity opening and have an angle of thirty degrees with the horizontal plane.

[0018] The utility model proposes an atmospheric monitoring sampling device, which has the following beneficial effects:

[0019] 1. The utility model provides a vertically sliding elastically positioned impact-resistant shield structure on the surface of the monitoring main housing. When the monitoring sampling device does not need to be started for a short period of time, the power switch exposed on the housing surface of the monitoring main housing can be fully and effectively covered to prevent the operator from accidentally colliding with the power switch and causing the monitoring sampling device itself to be started incorrectly.

[0020] 2. The utility model greatly improves the structural stability between the upper and lower ends of the sampling tube and the cutter and the monitoring main shell by arranging an upper fixing plate between the sampling tube and the cutter, and arranging a lower fixing plate structure with inclined ribs between the sampling tube and the monitoring main shell. When used outdoors, if it is subjected to strong wind force or the cutter itself is hit by foreign objects, it effectively avoids the cutter shaking or even causing the structural stability between the upper and lower ends of the sampling tube and the cutter and the monitoring main shell to be reduced and broken. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a three-dimensional schematic diagram of the overall structure of the utility model;

[0022] Figure 2 For the utility model Figure 1 A partial enlarged view of the crash shield structure at point A in the middle;

[0023] Figure 3 For the utility model Figure 2 A three-dimensional schematic diagram of a skateboard structure with a crash-resistant shield;

[0024] Figure 4 It is a front view schematic diagram of the overall structure of the utility model;

[0025] Figure 5 For the utility model Figure 1 A partial enlarged view of the upper and lower fixing plate structures at point B in the middle.

[0026] In the figure: 1 monitoring main housing; 11 display screen; 12 panel button; 13 data interface; 14 power interface; 15 power switch; 2 sampling tube; 21 upper fixing plate; 3 cutter; 31 sampling head; 4 lower fixing plate; 41 inner cavity opening; 42 inclined rib; 5 fixing seat; 51 sliding mouth; 6 sliding plate; 60 limit block; 61 first card slot; 62 second card slot; 7 impact-resistant shield; 71 anti-wear layer; 72 protective opening; 8 card column; 81 column cap ring; 82 spring; 83 finger pressure groove; 831 elastic layer. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0028] Reference Figure 1-5 An atmospheric monitoring sampling device includes a monitoring main housing 1, a sampling tube 2 is provided on the monitoring main housing 1, a cutter 3 is provided on the sampling tube 2, a sampling head 31 is provided on the cutter 3, and a display screen 11, a panel button 12, a data interface 13, a power interface 14, and a power switch 15 are provided on the monitoring main housing 1;

[0029] The monitoring main housing 1 is provided with a fixing seat 5, on which a slide plate 6 and a clamping column 8 are slidably connected. The slide plate 6 is provided with a limit block 60 and a collision-resistant shield 7. The collision-resistant shield 7 is provided with a protective opening 72. The clamping column 8 is provided with a column cap ring 81 and a spring 82.

[0030] The sampling tube 2 is provided with an upper fixing plate 21 and a lower fixing plate 4. The lower fixing plate 4 is provided with an inner cavity opening 41. The inner cavity opening 41 is provided with an inclined rib 42. The monitoring main shell 1, display screen 11, panel button 12, data interface 13, power interface 14, power switch 15, sampling tube 2, cutter 3, and sampling head 31 are all related structures of the vertical atmospheric particulate matter monitoring sampling device, which is the existing technology. At the same time, the working principle has been recorded in the background technology of this patent. Some existing structures are not drawn and marked, and there is no need to repeat them.

[0031] The impact-resistant shield 7 is made of PVC material, which is impact-resistant and has a high light-transmittance structure.

[0032] The fixing seat 5 is provided with a sliding opening 51 which is slidably connected to the slide plate 6. The sliding opening 51 and the slide plate 6 have a rectangular cross section when viewed from above, which prevents the slide plate 6 from rotating when sliding vertically.

[0033] There are two limit blocks 60 symmetrically arranged at both ends of the slide 6 , and there are two left-right symmetrical clamping columns 8 . When the limit blocks 60 are in contact with the fixing seat 5 , the clamping columns 8 are just aligned with the first clamping grooves 61 .

[0034] The two ends of the spring 82 are fixed to the fixing seat 5 and the column cap ring 81 respectively. The slide plate 6 is provided with a first slot 61 and a second slot 62. The clamping column 8 passes through the fixing seat 5 and is clamped with the second slot 62. The spring 82 is made of high-quality spring steel, which is highly elastic and stable.

[0035] A finger pressure groove 83 is provided on the column cap ring 81. The finger pressure groove 83 is an arc-shaped inner groove as a whole. An elastic layer 831 is provided in the finger pressure groove 83. The elastic layer 831 is made of silicone rubber and has excellent elasticity, which improves the comfort when the fingers squeeze the finger pressure groove 83.

[0036] The upper fixing plates 21 are triangular in structure and are arranged in a circle. The upper fixing plates 21 are arranged between the outer wall of the sampling tube 2 and the lower end surface of the cutter 3 , thereby improving the structural stability between the sampling tube 2 and the cutter 3 .

[0037] The lower fixing plate 4 is a triangular structure as a whole and is arranged in four circles. The lower fixing plate 4 is arranged between the monitoring main shell 1 and the sampling tube 2. The inner cavity opening 41 passes through the lower fixing plate 4. The inclined ribs 42 are arranged in the inner cavity opening 41 and have an angle of thirty degrees with the horizontal plane. The inclined ribs 42 form two triangular inner cavities in the inner cavity opening 41, further improving the structural stability.

[0038] Working method: When the monitoring sampling device does not need to be started in a short time, hold the anti-collision shield 7 with one hand, and the two fingers of the other hand hook into the finger pressure grooves 83 of the column cap rings 81 on both sides and press outward at the same time, driving the two side clamping columns 8 to slide away at the same time, until the clamping column 8 exits the second clamping groove 62, at this time the spring 82 stretches and deforms, and then pulls the anti-collision shield 7 downward, driving the slide plate 6 to slide downward along the sliding mouth 51, until the lower end face of the limit block 60 is in contact with the upper end face of the fixing seat 5, then the fingers exit the finger pressure groove 83, the spring 82 pulls back and drives the clamping column 8 to quickly snap into the aligned first clamping groove 61, realizing rapid positioning of the slide plate 6, at this time, the protective opening 72 has effectively covered the power switch 15 as a whole, preventing the operator from accidentally colliding with the power switch 15 and causing the monitoring sampling device itself to be started by mistake.

[0039] In addition, by arranging an upper fixing plate 21 between the sampling tube 2 and the cutter 3, and arranging a lower fixing plate 4 structure with inclined ribs 42 between the sampling tube 2 and the monitoring main shell 1, the structural stability is improved. When used outdoors, if it is subjected to strong wind force or the cutter 3 itself is hit by foreign objects, it can effectively prevent the cutter 3 from shaking or even causing the structural stability between the upper and lower ends of the sampling tube 2 and the cutter 3 and the monitoring main shell 1 to be reduced or broken.

[0040] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An atmospheric monitoring sampling device, comprising a monitoring main housing (1), characterized in that: The monitoring main housing (1) is provided with a sampling tube (2), the sampling tube (2) is provided with a cutter (3), the cutter (3) is provided with a sampling head (31), and the monitoring main housing (1) is provided with a display screen (11), a panel button (12), a data interface (13), a power interface (14), and a power switch (15); The monitoring main housing (1) is provided with a fixing seat (5), a slide plate (6) and a clamping column (8) are slidably connected to the fixing seat (5), a limit block (60) and a collision-resistant shield (7) are provided on the slide plate (6), a protective opening (72) is provided on the collision-resistant shield (7), and a column cap ring (81) and a spring (82) are provided on the clamping column (8); The sampling tube (2) is provided with an upper fixing plate (21) and a lower fixing plate (4); the lower fixing plate (4) is provided with an inner cavity opening (41); and an inclined rib (42) is provided in the inner cavity opening (41).

2. An atmospheric monitoring sampling device according to claim 1, characterized in that: The fixing seat (5) is provided with a sliding opening (51), the sliding opening (51) and the slide plate (6) are slidably sleeved, and the top view cross section of the sliding opening (51) and the slide plate (6) is a rectangular cross section.

3. An atmospheric monitoring sampling device according to claim 1, characterized in that: The number of the limit blocks (60) is two and they are symmetrically arranged at the two ends of the slide plate (6), and the number of the clamping columns (8) is two and they are symmetrical on the left and right.

4. An atmospheric monitoring sampling device according to claim 1, characterized in that: The two ends of the spring (82) are fixed to the fixing seat (5) and the column cap ring (81) respectively; a first clamping groove (61) and a second clamping groove (62) are provided on the slide plate (6); and the clamping column (8) passes through the fixing seat (5) and is clamped to the second clamping groove (62).

5. The atmospheric monitoring sampling device according to claim 1, characterized in that: The column cap ring (81) is provided with a finger pressure groove (83), the finger pressure groove (83) is an arc-shaped inner groove as a whole, and an elastic layer (831) is provided in the finger pressure groove (83).

6. An atmospheric monitoring sampling device according to claim 1, characterized in that: The upper fixing plates (21) are triangular in structure as a whole and are arranged in four parts in a circumferential manner. The upper fixing plates (21) are arranged between the outer wall of the sampling tube (2) and the lower end surface of the cutter (3).

7. The atmospheric monitoring sampling device according to claim 1, characterized in that: The lower fixing plate (4) is a triangular structure as a whole and is arranged in four parts in a circle. The lower fixing plate (4) is arranged between the monitoring main housing (1) and the sampling tube (2). The inner cavity opening (41) passes through the lower fixing plate (4). The inclined ribs (42) are arranged in the inner cavity opening (41) and have an angle of thirty degrees with the horizontal plane.

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