CN218782056U

CN218782056U - Atmospheric sampling device

Info

Publication number: CN218782056U
Application number: CN202222537246.5U
Authority: CN
Inventors: 李梦杰; 朱婷; 汪钰蔓; 叶超凡
Original assignee: Hubei Yinjie Energy Technology Co ltd
Current assignee: Hubei Yinjie Energy Technology Co ltd
Priority date: 2022-09-22
Filing date: 2022-09-22
Publication date: 2023-03-31
Anticipated expiration: 2032-09-22

Abstract

The utility model discloses an atmospheric sampling device, which comprises an installation component, a limiting component, a driving component, a sampling cylinder and an exhaust shell; the mounting assembly includes a mounting housing; the outer peripheral surface of the mounting shell is provided with a plurality of sampling ports, a plurality of placing grooves corresponding to the sampling ports are circumferentially arranged in the mounting shell, and each placing groove is internally provided with the sampling cylinder; the limiting assembly comprises a sealing sleeve and a negative pressure fan; the sealing sleeve is rotatably connected to the outer peripheral surface of the mounting shell, a through hole matched with the sampling port is formed in the sealing sleeve, and a plurality of tooth blocks are circumferentially arranged on the outer peripheral surface of the sealing sleeve. The sampling device of solving among the prior art, sampling efficiency is lower, needs the staff immediately to change the sampling filter membrane and samples once more after a sampling filter membrane is gathered, because the quantity of same regional collection point is a lot of, and the staff can't in time change the sampling filter membrane, leads to the comparatively loaded down with trivial details technical problem of use.

Description

Atmospheric sampling device

Technical Field

The utility model relates to an atmosphere sampling device technical field, concretely relates to is an atmosphere sampling device.

Background

Atmospheric pollution is caused by that certain substances enter the atmosphere due to human activities or natural processes, present sufficient concentration and reach sufficient time, and therefore, the phenomena of comfort, health and environment of human bodies are harmed, so that the atmosphere needs to be sampled and collected, the atmosphere needs to be detected and analyzed, and in order to ensure the accuracy of atmospheric detection, the atmosphere is mostly sampled and collected in a multi-temperature-section sampling mode;

the publication number CN215574077U proposes "an atmospheric particulate sampling device for environmental monitoring", in which, by providing an air exhaust mechanism and a sampling filter membrane, outside air is forcibly sucked into a sampling box, and particulate is collected through the sampling filter membrane; however, the sampling efficiency of the device is low, only one sampling filter membrane is provided, and after the sampling of one sampling filter membrane is finished, workers need to immediately replace the sampling filter membrane for sampling again;

to this end, we propose an atmospheric sampling device.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome above-mentioned technique not enough, provide an atmospheric sampling device, solve the sampling device among the prior art, sampling efficiency is lower, needs the staff immediately to change the sampling filter membrane and samples once more after a sampling filter membrane is gathered and is accomplished, because the quantity of same regional acquisition point is many, the staff can't in time change the sampling filter membrane, leads to the comparatively loaded down with trivial details technical problem of use.

In order to achieve the technical purpose, the utility model adopts the following technical proposal:

an atmosphere sampling device comprises a mounting assembly, a limiting assembly, a driving assembly, a sampling cylinder and an exhaust shell;

the mounting assembly includes a mounting housing; the outer peripheral surface of the mounting shell is provided with a plurality of sampling ports, a plurality of placing grooves corresponding to the sampling ports are circumferentially arranged in the mounting shell, and each placing groove is internally provided with the sampling cylinder;

the limiting assembly comprises a sealing sleeve and a negative pressure fan; the sealing sleeve is rotationally connected to the outer peripheral surface of the mounting shell, a through hole matched with the sampling port is formed in the sealing sleeve, a plurality of tooth blocks are circumferentially arranged on the outer peripheral surface of the sealing sleeve, and the negative pressure fan is mounted in the through hole;

the driving assembly comprises a bracket and a driving part; the bracket is arranged on the mounting shell, the driving part is arranged in the bracket, and the output end of the driving part is meshed with the tooth block;

the exhaust shell set up in installation shell below, the upper end extend to in the installation shell and with the standing groove intercommunication.

Preferably, a cabinet door is hinged to the upper end face of the mounting shell.

Preferably, the outer peripheral surface of the mounting shell is provided with a chute group, the sampling port is positioned between the chute groups, and the chute group is connected with the sealing sleeve in a sliding manner.

Preferably, the inner circumferential surface of the sealing sleeve is symmetrically provided with sliding blocks matched with the sliding groove groups.

Preferably, a sealing gasket is bonded between the two sliders and to an inner circumferential surface of the sealing sleeve.

Preferably, the support is a C-shaped support body, and the upper end and the lower end of the mounting shell are both connected with the support.

Preferably, the driving part comprises a motor and a gear; the motor is arranged on the bracket, the output end of the motor is connected with the gear, and the gear is meshed with the gear block.

Preferably, the sampling cartridge is of a hollow structure.

Preferably, the sampling cylinder comprises an upper cylinder body, a lower cylinder body and a sampling filter membrane; the lower end of the upper barrel is in threaded connection with the lower barrel; the sampling filter membrane is arranged in the lower barrel body.

Preferably, a plurality of exhaust nets are installed on the outer circumferential surface of the exhaust casing.

Compared with the prior art, the beneficial effects of the utility model include:

1. compared with the prior art, the utility model, possess a plurality of sampling filter membranes, when making it sample at the sampling point of same region difference, do not need the staff frequently to change the cartridge, when guaranteeing the sampling result diversity, reduce staff's intensity of labour, avoid frequently changing the cartridge.

Drawings

Fig. 1 is a perspective view of the present invention;

FIG. 2 is a top view of the internal structure of the present invention;

fig. 3 is a top view of the internal structure of the mounting housing of the present invention;

figure 4 is a top view of the present invention from figure 1;

fig. 5 is a schematic structural view of the sampling cylinder of the present invention;

fig. 6 is a partial schematic view of the outer peripheral surface of the mounting case of the present invention.

In the figure: 1. mounting the component; 11. mounting a shell; 12. a sampling port; 13. a cabinet door; 14. a placement groove; 15. a chute group; 2. a limiting component; 21. a sealing sleeve; 211. a through hole; 212. a tooth block; 213. a slider; 22. a negative pressure fan; 3. a drive assembly; 31. a support; 32. a drive section; 321. a motor; 322. a gear; 4. a sampling cylinder; 41. an upper cylinder body; 42. a lower cylinder body; 43. sampling a filter membrane; 5. an exhaust housing; 51. an exhaust net.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.

Referring to fig. 1, the present invention provides an atmospheric sampling device, which includes a mounting assembly 1, a limiting assembly 2, a driving assembly 3, a sampling cartridge 4 and an exhaust casing 5.

The mounting assembly 1 comprises a mounting housing 11; a plurality of sampling openings 12 have been seted up to the outer peripheral face of

installation shell

11, and 11 inside circumference of installation shell sets up a plurality of standing grooves 14 that correspond with sampling openings 12, all is equipped with cartridge 4 in every standing groove 14.

The limiting assembly 2 comprises a sealing sleeve 21 and a negative pressure fan 22; the sealing sleeve 21 is rotatably connected to the outer peripheral surface of the mounting shell 11, a through hole 211 matched with the sampling port 12 is formed in the sealing sleeve 21, a plurality of tooth blocks 212 are arranged on the outer peripheral surface of the sealing sleeve 21 in the circumferential direction, and the negative pressure fan 22 is mounted in the through hole 211.

The driving assembly 3 comprises a bracket 31 and a driving part 32; the holder 31 is mounted on the mounting case 11, the driving portion 32 is mounted in the holder 31, and the output end thereof is engaged with the tooth block 212.

The exhaust shell 5 is arranged below the mounting shell 11, and the upper end of the exhaust shell extends into the mounting shell 11 and is communicated with the placing groove 14.

In use, the driving part 32 is matched with the tooth block 212 to drive the sealing sleeve 21 to rotate on the outer peripheral surface of the mounting shell 11, the through hole 211 on the sealing sleeve 21 and the sampling port 12 are positioned on the same axis, the negative pressure fan 22 provides suction force to suck gas into the placing groove 14 in the mounting shell 11, and as the sampling cylinder 4 is arranged in the placing groove 14, after the gas flow penetrates through the sampling cylinder 4, particles in the atmosphere remain in the sampling cylinder 4, and the gas flow is discharged outwards by the exhaust shell 5, after the collection is finished, the driving part 32 continues to drive the sealing sleeve 21 to rotate, so that the through hole 211 and the sampling port 12 are dislocated, and the collected sampling port 12 is sealed by the sealing sleeve 21; when the sealing sleeve 21 continuously rotates, the sealing sleeve coincides with the next sampling port 12, the negative pressure fan 22 is started again, and the steps are repeated, so that secondary sampling can be completed.

In order to improve the sampling efficiency of the sampling cylinder 4, please refer to fig. 2 and 5, in a preferred embodiment, the upper end surface of the mounting shell 11 is hinged with a cabinet door 13, the sampling cylinder 4 is of a hollow structure, and the sampling cylinder 4 comprises an upper cylinder body 41, a lower cylinder body 42 and a sampling filter membrane 43; the lower end of the upper cylinder 41 is connected with a lower cylinder 42 through threads; the sampling filter 43 is mounted inside the lower cylinder 42, and a plurality of exhaust nets 51 are mounted on the outer circumferential surface of the exhaust case 5.

Wherein the sampling cylinder 4 is detachably arranged in the placing groove 14, when the through hole 211 is communicated with the sampling port 12, the negative pressure fan 22 pumps the atmosphere into the placing groove 14, and the particles in the gas are collected by the sampling cylinder 4 after passing through the sampling cylinder 4, finally enter the exhaust shell 5 and are discharged outwards; the sampling cylinder 4 is formed by connecting an upper cylinder body 41 and a lower cylinder body 42 through threads, a sampling filter membrane 43 is installed in the lower cylinder body 42, and after sampling is finished, the sampling filter membrane 43 is far away from the upper cylinder body 41 by rotating the lower cylinder body 42, so that workers can obtain sampling particles of the sampling filter membrane 43.

In order to improve the rotation efficiency of the sealing sleeve 21 on the outer periphery of the mounting shell 11, please refer to fig. 2, fig. 3 and fig. 6, in a preferred embodiment, the outer periphery of the mounting shell 11 is provided with a sliding groove group 15, the sampling port 12 is located between the sliding groove groups 15, the sliding groove group 15 is connected with the sealing sleeve 21 in a sliding manner, the inner periphery of the sealing sleeve 21 is symmetrically provided with sliding blocks 213 matched with the sliding groove group 15, and a sealing gasket is adhered between the two sliding blocks 213 and on the inner periphery of the sealing sleeve 21.

The sliding groove group 15 is arranged on the periphery of the mounting shell 11, so that the sliding groove group can be conveniently matched with the sliding block 213 on the inner peripheral surface of the sealing sleeve 21, the sliding block can be connected to the mounting shell 11 in a sliding manner, and the sampling port 12 is communicated with the through hole 211; and through setting up the sealed pad, further strengthened the sealing performance of sealed sleeve 21, when making its adoption mouth not communicate with through-hole 211, the leakproofness is also relatively stronger.

To improve the stability and the working efficiency of the driving portion 32, referring to fig. 1, in a preferred embodiment, the bracket 31 is a C-shaped bracket body, the bracket 31 is connected to both the upper end and the lower end of the mounting shell 11, and the driving portion 32 includes a motor 321 and a gear 322; the motor 321 is mounted on the bracket 31, a gear 322 is connected to the output end of the motor 321, and the gear 322 is engaged with the gear block 212.

Wherein adopt C shape's support 31, make it can be better fix on installation shell 11, guaranteed the stability of drive portion 32 operation like this, and drive portion 32 includes motor 321 and gear 322, when motor 321 drove gear 322 operation, through the cooperation of gear 322 with a plurality of tooth pieces 212 of sealing sleeve 21 outer peripheral face for drive sealing sleeve 21 carries out circumferential direction at the outer peripheral face of installation shell 11.

For better understanding of the present invention, the following detailed description of the working process of an atmospheric sampling device according to the present invention is made with reference to fig. 1 to 6: when the sampling device is used, when atmospheric sampling is needed, the gear 322 is driven to rotate by the motor 321, the gear 322 is matched with the tooth block 212 on the outer peripheral surface of the sealing sleeve 21, the sliding block 213 on the inner peripheral surface of the sealing sleeve 21 is driven to slide in the sliding groove group 15 on the outer peripheral surface of the mounting shell 11, so that the sealing sleeve 21 rotates circumferentially, the through hole 211 of the sealing sleeve 21 is communicated with any one sampling port 12 on the mounting shell 11 in the rotating process of the sealing sleeve 21, at the moment, the negative pressure fan 22 generates suction force, air flow is sucked into the placing groove 14 in the mounting shell 11 and circulated in the placing groove 14, and when the air flow in the placing groove 14, the air flow passes through the sampling cylinder 4, and particles in the air are adsorbed by the sampling filter membrane 43 in the sampling cylinder 4, so that sampling work is completed; after the gas flow passes through the sampling cylinder 4, the gas flow enters the exhaust shell 5 and is exhausted outwards through the exhaust net 51, after the gas flow is collected for one time, the motor 321 continues to drive the gear 322 to rotate and drive the sealing sleeve 21 to continue to operate, so that the sealing sleeve is communicated with the next sampling port 12, and secondary sampling is finished; the device is simple to operate, can finish sampling for many times, and ensures the diversity of sampling data.

The above description is intended to illustrate the embodiments of the present invention, and not to limit the scope of the invention. Any other corresponding changes and modifications made according to the technical idea of the present invention should be included in the scope of the claims of the present invention.

Claims

1. An atmospheric sampling device, characterized by: the sampling device comprises a mounting assembly, a limiting assembly, a driving assembly, a sampling cylinder and an exhaust shell;

the exhaust shell is arranged below the installation shell, and the upper end of the exhaust shell extends into the installation shell and is communicated with the placing groove.

2. An atmospheric sampling device as defined in claim 1, wherein: the mounting shell upper end face articulates there is the cabinet door.

3. An atmospheric sampling device as defined in claim 1, wherein: the outer peripheral surface of the mounting shell is provided with a chute group, the sampling port is positioned between the chute groups, and the chute group is connected with the sealing sleeve in a sliding manner.

4. An atmospheric sampling device as defined in claim 3 wherein: and sliding blocks matched with the sliding groove groups are symmetrically arranged on the inner peripheral surface of the sealing sleeve.

5. An atmospheric sampling device as recited in claim 4, wherein: and a sealing gasket is adhered between the two sliding blocks and on the inner circumferential surface of the sealing sleeve.

6. An atmospheric sampling device as defined in claim 1, wherein: the support is C shape support body, the upper and lower both ends of installation shell all are connected with the support.

7. An atmospheric sampling device as defined in claim 1, wherein: the driving part comprises a motor and a gear; the motor is installed on the support, the output end of the motor is connected with the gear, and the gear is meshed with the tooth block.

8. An atmospheric sampling device as recited in claim 1, wherein: the sampling cylinder is of a hollow structure.

9. An atmospheric sampling device as defined in claim 1, wherein: the sampling cylinder comprises an upper cylinder body, a lower cylinder body and a sampling filter membrane; the lower end of the upper barrel is in threaded connection with the lower barrel; the sampling filter membrane is arranged in the lower barrel body.

10. An atmospheric sampling device as recited in claim 1, wherein: and a plurality of exhaust nets are arranged on the peripheral surface of the exhaust shell.