CN207456869U

CN207456869U - Air acquisition device

Info

Publication number: CN207456869U
Application number: CN201721422559.9U
Authority: CN
Inventors: 夏贤军; 陈静; 简俊
Original assignee: Chongqing Meigao Technology Co Ltd
Current assignee: Chongqing Meigao Technology Co Ltd
Priority date: 2017-10-31
Filing date: 2017-10-31
Publication date: 2018-06-05
Anticipated expiration: 2027-10-31

Abstract

The utility model discloses air acquisition devices, it is related to air detection equipment, the utility model includes cylinder, sample cotton, strainer, partition plate, fan, motor, pedestal, fixed arm, track and idler wheel, cylinder is divided into superjacent air space and underlying space by partition plate, fan is located at underlying space and reduces the pressure of underlying space, sampling cotton is located above space, motor makes dust tightly adsorb in sampling cotton surface and inside for driving rotary drum to generate centrifugal force, one end of fixed arm is fixed on pedestal, the other end installs idler wheel, track is on cylinder outer surface, fixed arm, the entirety of idler wheel and track composition can limit cylinder and be in rotation process rocks in radial directions.

Description

Air acquisition device

Technical field

The utility model is related to air detection equipment, and in particular to air acquisition device.

Background technology

Dust sampler refers to the portable tools that dust sample is gathered in dust laden air, and it is pre- that it is widely used in disease The health prison of the departments such as anti-, environmental monitoring, labour protection, safety supervision, military affairs, research and teaching, metallurgy, petrochemical industry, railway, building materials It surveys and evaluates, be exclusively used in measuring dust in air mean concentration in production team workplace.It is pre- to trap in dust sampler Device is the separator of dust sampler, for gather dust and the dust by being collected in pre- trap internal screen into Row Correlative data analysis.But the pre- trap in current dust sampler is during the work time, what pre- trap trapped Dust easily drops when being measured after the completion of trapping, causes dust sampling result inaccurate.

Utility model content

The utility model aim is to solve the above problems, and the utility model provides air acquisition device, when applying Trapped dust can be prevented to be not easy to drop, dust sampling result is more objective and accurate.

The purpose of this utility model is achieved through the following technical solutions：

Air acquisition device, including cylinder, the cylinder is the empty cylinder of opening upwards, and cylinder interior is equipped with partition plate, described Cylinder interior is divided into superjacent air space and underlying space by partition plate, has one layer of sampling cotton on the side wall of the superjacent air space of cylinder；Institute It states and multiple apertures is offered on partition plate, the upper face of partition plate has one layer of strainer；Fan is equipped in the underlying space of the cylinder, The fan is used to that both superjacent air space and underlying space of cylinder to be made to generate pressure difference；Cylinder in cylinder underlying space Bottom offers multiple ventilation holes；Motor, pedestal, fixed arm and idler wheel are further included, the motor is fixed on pedestal, motor Output shaft is fixed on bottom of cylinder, the shaft of motor and the axis collinear of cylinder；One is offered on the outer surface of the cylinder Groove is enclosed, is fixed in groove equipped with track, one end of the fixed arm on pedestal, the other end of fixed arm is equipped with idler wheel, The idler wheel is embedded in track.

For the utility model in use, open fan, the wind direction of fan is downward, due to the setting of aperture and ventilation hole, The pressure of cylinder underlying space can be made to be less than the pressure of cylinder superjacent air space, extraneous air is made to enter circle from cylinder upper opening Tin, the dust in air will be trapped by sampling cotton afterwards, and strainer can prevent the dust in air from entering cylinder underlying space And then damage fan；Rotary drum can make the dust being located in cylinder tightly adsorb and sampling by centrifugal force after starting motor Cotton surface and inside, fixed arm, idler wheel and being used cooperatively for track are to be in limit cylinder in rotation process in radial direction side It rocks upwards so that cylinder can keep the shaft of cylinder not deviate by machine shaft when rotating.Cotton is sampled eventually by calculating Weight change draw dust situation in air.

Further, the filter opening diameter of the strainer is less than the filter opening diameter of sampling cotton, can be better protected from dust entrance Cylinder underlying space where fan.

Further, the partition plate is parallel to cylinder bottom surface.

Further, plane is parallel with plane where partition plate where the track.

By using the utility model, following advantageous effect can be generated：The utility model includes cylinder, sampling cotton, filter Net, partition plate, fan, motor, pedestal, fixed arm, track and idler wheel, cylinder are divided into superjacent air space and underlying space, wind by partition plate Fan is positioned at underlying space and reduces the pressure of underlying space, and sampling cotton is located above space, motor for drive rotary drum with Generate centrifugal force make dust tightly adsorb sampling cotton surface and inside, one end of fixed arm be fixed on pedestal, the other end peace Idler wheel is filled, on cylinder outer surface, the entirety of fixed arm, idler wheel and track composition can limit cylinder and be in rotation process track In rock in radial directions.

Description of the drawings

Attached drawing described herein is used for providing further understanding the utility model embodiment, forms the one of the application Part does not form the restriction to the utility model embodiment.In the accompanying drawings：

Fig. 1 is the structure diagram of the utility model.

Mark and corresponding parts title in attached drawing：1- cylinders, 2- sampling cottons, 3- tracks, 4- partition plates, 5- apertures, 6- Fan, 7- ventilation holes, 8- motors, 9- pedestals, 10- fixed arms, 11- strainers, 12- idler wheels.

Specific embodiment

For the purpose of this utility model, technical solution and advantage is more clearly understood, with reference to embodiment and attached drawing, The utility model is described in further detail, and the exemplary embodiment and its explanation of the utility model are only used for explaining this Utility model is not intended to limit the scope of the present invention.

As shown in Figure 1, air acquisition device, including cylinder 1, cylinder 1 is shown partially cut away, and the cylinder 1 is opening upwards Empty cylinder, cylinder 1 is internally provided with partition plate 4, and the partition plate 4 will be divided into superjacent air space and underlying space inside cylinder 1, cylinder 1 With one layer of sampling cotton 2 on the side wall of superjacent air space；Multiple apertures 5 are offered on the partition plate 4, the upper face of partition plate 4 has One layer of strainer 11；Fan 6 is equipped in the underlying space of the cylinder 1, the superjacent air space that the fan 6 is used to make cylinder 1 is under Both side spaces generate pressure difference；1 bottom of cylinder in 1 underlying space of cylinder offers multiple ventilation holes 7；Further include electricity Machine 8, pedestal 9, fixed arm 10 and idler wheel 12, the motor 8 are fixed on pedestal 9, and the output shaft of motor 8 is fixed on 1 bottom of cylinder In portion, the shaft of motor 8 and the axis collinear of cylinder 1；A circle groove is offered on the outer surface of the cylinder 1, is filled in groove There is track 3, one end of the fixed arm 10 is fixed on pedestal 9, and the other end of fixed arm 10 is equipped with idler wheel 12, the idler wheel 12 insertion tracks 3, the filter opening diameter of the strainer 11 are less than the filter opening diameter of sampling cotton 2, and the partition plate 4 is parallel to 1 bottom of cylinder Face, the 3 place plane of track are parallel with 4 place plane of partition plate.

Above-described specific embodiment, the purpose of this utility model, technical solution and advantageous effect have been carried out into One step is described in detail, it should be understood that the foregoing is merely specific embodiment of the present utility model, is not used to limit Determine the scope of protection of the utility model, within the spirit and principle of the utility model, any modification for being made equally is replaced It changes, improve, should be included within the scope of protection of this utility model.

Claims

1. air acquisition device, which is characterized in that including cylinder (1), the cylinder (1) be opening upwards empty cylinder, cylinder (1) Partition plate (4) is internally provided with, the partition plate (4) will be divided into superjacent air space and underlying space, the top of cylinder (1) inside cylinder (1) With one layer of sampling cotton (2) on the side wall in space；Multiple apertures (5), the upper face of partition plate (4) are offered on the partition plate (4) With one layer of strainer (11)；Fan (6) is equipped in the underlying space of the cylinder (1), the fan (6) is used to make cylinder (1) Superjacent air space and both underlying spaces generate pressure difference；Cylinder (1) bottom in cylinder (1) underlying space offers more A ventilation hole (7)；

Motor (8), pedestal (9), fixed arm (10) and idler wheel (12) are further included, the motor (8) is fixed on pedestal (9), electricity The output shaft of machine (8) is fixed on cylinder (1) bottom, the shaft of motor (8) and the axis collinear of cylinder (1)；The cylinder (1) Outer surface on offer a circle groove, equipped with track (3) in groove, one end of the fixed arm (10) is fixed on pedestal (9) On, the other end of fixed arm (10) is equipped with idler wheel (12), the embedded track (3) of the idler wheel (12).

2. air acquisition device according to claim 1, which is characterized in that the filter opening diameter of the strainer (11), which is less than, to be adopted The filter opening diameter of sample cotton (2).

3. air acquisition device according to claim 1, which is characterized in that the partition plate (4) is parallel to cylinder (1) bottom Face.

4. air acquisition device according to claim 1, which is characterized in that plane where the track (3) and partition plate (4) Place plane is parallel.