CN209215022U - A kind of dust collector - Google Patents
A kind of dust collector Download PDFInfo
- Publication number
- CN209215022U CN209215022U CN201822165954.4U CN201822165954U CN209215022U CN 209215022 U CN209215022 U CN 209215022U CN 201822165954 U CN201822165954 U CN 201822165954U CN 209215022 U CN209215022 U CN 209215022U
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- China
- Prior art keywords
- fixed ring
- cylinder
- sampling
- linkage section
- filter membrane
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Abstract
The utility model discloses a kind of dust collectors, including cabinet, the sampling head for being placed in the intracorporal air extractor of case, being connected to by hose with air extractor, sampling head includes that sampling cylinder ontology, the cover that sampling cylinder ontology one end is arranged in, the linkage section for connecting sampling cylinder ontology and hose, the first fixed ring being arranged in sampling cylinder inner body wall and the first fixed ring cooperate to compress the second fixed ring of filter membrane；Cover includes the outer cylinder to match with sampling cylinder ontology and the inner cylinder that is placed in outer cylinder, and the outer diameter of inner cylinder is equal to the internal diameter of the second fixed ring；It is provided between box top wall and one side wall on the groove being connected and the roof and side wall and is provided with spiral shell block positioned at the groove top of groove, be arranged jagged on spiral shell block, the width of notch is more than or equal to the diameter of linkage section；The fixinig plate for being arranged with the nut to match with spiral shell block outside linkage section, being fixed on linkage section and being placed in nut.Its accuracy that sampled data can be improved, improves the accuracy of follow-up test.
Description
Technical field
The utility model relates to sample devices fields, and in particular to a kind of dust collector.
Background technique
Dust sampler refers to the portable tools that dust sample is acquired in dust laden air.The dust measured in air is dense
Degree provides scientific basis also for the dust-proof, depositing dust to research, dust suppression other than production safety management needs.With sampling
Device dust measuring is a kind of generally acknowledged higher method of accuracy.It is widely used in disease prevention, environmental monitoring, labour protection, peace
The monitoring of hygiene and evaluation of the departments such as prison, military affairs, research and teaching, metallurgy, petrochemical industry, railway, building materials are exclusively used in measurement production
Dust in air mean concentration in teams and groups workplace.
Dust collector collects dust using filter membrane, use such as application No. is CN201721603673.1 " one kind is anti-
The side of cabinet is arranged in quick-fried type dust sampler " structure, sampling head, by filter membrane clip, ring, locating slot is collected, using this
Structure, during collection, part dust, which will appear to fall to, to be collected on ring, after the completion of collection, needs to continue to open aspiration pump,
After because being fallen on the adsorbing powder dust to filter membrane for falling to and collecting in ring under twisting resistance, then remove filter membrane clip, successively filter membrane membrane cover,
Elastic slice, filter membrane, separate and collect ring, and the dust collected in ring is poured and is measured.But it using the structure, is removing
During filter membrane, filter membrane is at vertical state, during taking, even if dust on filter membrane also it is extremely easy to drop have collect ring
Measurement is collected, still, in toppling process, dust size too small can inevitably be adhered to is collected on ring, to influence follow-up test
Accuracy.
Utility model content
In order to solve the above-mentioned technical problem the utility model provides a kind of dust collector.
The utility model is achieved through the following technical solutions:
A kind of dust collector including cabinet, is placed in the intracorporal air extractor of case, is connected to air extractor by hose
Sampling head,
The sampling head includes sampling cylinder ontology, the cover that sampling cylinder ontology one end is arranged in, for connecting sampling cylinder sheet
The linkage section of body and hose, the first fixed ring being arranged in sampling cylinder inner body wall cooperate with the first fixed ring to compress filter
Second fixed ring of film；The cover includes the outer cylinder to match with sampling cylinder ontology and the inner cylinder that is placed in outer cylinder, it is described in
The outer diameter of cylinder is equal to the internal diameter of the second fixed ring；
The diameter of the filter membrane is greater than the internal diameter of outer cylinder；
It is provided between the box top wall and one side wall on the groove being connected and the roof and side wall positioned at groove
Groove top is provided with spiral shell block, is arranged jagged on the spiral shell block, and the width of the notch is more than or equal to the diameter of linkage section；It is described
The fixinig plate for being arranged with the nut to match with spiral shell block outside linkage section, being fixed on linkage section and being placed in nut.Using the knot
Structure setting, so that the direction of sampling head is adjustable, when sampling, linkage section is stuck in the notch of side wall spiral shell block, and sampling head passes through
Nut is fixed on the spiral shell block on side wall；When sampling is completed fastly, nut of dismantling moves sampling head along groove, linkage section is stuck in
In the notch of roof spiral shell block, air extractor can be stopped on the spiral shell block that sampling head is fixed on roof by nut.
This programme improves on the basis of existing collector structure, this sampling head can both acquire gas on body side
Body can also remove filter membrane in top-direction.This structure avoid removing dust during filter membrane fall it is accurate to improve follow-up test
Property principle it is as follows: first, when taking filter membrane, sampling head is arranged on roof, and at horizontality, the dust on filter membrane is not easy filter membrane
It falls, will not influence the accuracy of subsequent measurement；Second, the diameter of filter membrane is greater than the internal diameter of outer cylinder, during installation, filter membrane edge
Towards the opening direction of sampling cylinder ontology, i.e., upwards, flatness when being installed convenient for the taking-up of filter membrane and filter membrane, and can be to stress
The dust to fly up is collected again；Third, the second fixed ring compresses filter membrane, in sampling process, dust is adsorbed by filter membrane, takes filter
When film, dust will not be adhered on cover, since the outer diameter of inner cylinder is equal to the internal diameter of the second fixed ring, inner cylinder is solid to dust and second
Determine ring to be completely cut off, dust will not be equally adhered to when removing the second fixed ring, that is, use the present apparatus, it is ensured that sampling dust is complete
It is adsorbed by filter membrane, improves the accuracy of sampled data, improve the accuracy of follow-up test.
Preferably, being provided with hold-down column in second fixed ring, institute to improve the stability of filter membrane mounting structure
The length for stating hold-down column is equal to the depth for the groove body that outer cylinder and inner cylinder are constituted.
Preferably, the air extractor include the exhaust chamber being connected to hose, two exhaust tubes being connected to exhaust chamber,
The piston being placed in exhaust tube and the piston rod being connected on piston, being arranged on the exhaust tube only allows gas from exhaust tube one
First one-way cock of lateral exhaust chamber side discharge, setting is connected to exhaust tube between first one-way cock and piston
Exhaust pipe is provided with the second one-way valve door for only gas being allowed to discharge outward from exhaust tube side on the exhaust pipe；Two work
Stopper rod is arranged in parallel and is separately positioned on gear two sides, axially disposed on the piston rod to have the tooth being meshed with gear, institute
It is fixed on the drive means to state gear.Existing air extractor using the structures such as aspiration pump, such as application No. is
A kind of " the explosion-proof type dust sampler " of CN201721603673.1, since aspiration pump can vibrate when in use, noise is big,
In some use occasions, easily manufacture fugitive dust, increases test data, influence test accuracy.This programme is driven using gear
Piston is mobile, and gear can be used motor driven, and existing motor can be realized noiseless, can both reduce noise, also can avoid vibration and generate
Fugitive dust influence test data accuracy.
Further, in order to improve the mobile stability of piston rod, one end of piston rod is placed in guide cylinder.
Preferably, the width of first fixed ring is greater than the width of the second fixed ring and the width difference of the two is greater than interior
The wall thickness of cylinder.The width of fixed ring, that is, fixed ring outer diameter and internal diameter difference, wall thickness, that is, inner cylinder outer diameter of inner cylinder and the difference of internal diameter.
When sampling, air-flow is flowed from one side of the second fixed ring to the first fixed ring side, and using the structure, reduction is placed in the first fixed ring
The adsorbing powder dust amount of filter membrane that is upper and being placed in the second fixed ring, avoids filter membrane and the excessive adherency of inner cylinder contact position adsorbing powder dust amount
Cause DATA REASONING inaccurate on the inner cylinder.
The utility model compared with prior art, has the following advantages and benefits:
1, the device of the utility model its when taking filter membrane, sampling head be arranged on roof, filter membrane is at horizontality, filter membrane
On dust be not easy to fall, will not influence the accuracy of subsequent measurement.
2, the diameter of the utility model filter membrane is greater than the internal diameter of outer cylinder, and during installation, filter membrane edge is towards sampling cylinder ontology
Opening direction, i.e., upwards, flatness when being installed convenient for the taking-up of filter membrane and filter membrane, and the dust that stress flies up being carried out
It collects again.
3, using the present apparatus, it is ensured that sampling dust is adsorbed by filter membrane completely, the accuracy of sampled data is improved, after raising
The accuracy of continuous test.
Detailed description of the invention
Attached drawing described herein is used to provide to further understand the utility model embodiment, constitutes the one of the application
Part does not constitute the restriction to the utility model embodiment.
Fig. 1 is the structural schematic diagram of the utility model.
Fig. 2 is the cross-sectional view of sampling head.
Fig. 3 is the structural schematic diagram of cover.
Fig. 4 is the structural schematic diagram of air extractor.
Specific embodiment
For the purpose of this utility model, technical solution and advantage is more clearly understood, below 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.
Embodiment 1
A kind of dust collector as shown in Figure 1 is adopted including cabinet 1, the air extractor being placed in cabinet 12 and sampling head
Sample head is connected to by hose 3 with air extractor 2.
As shown in Fig. 2, sampling head includes sampling cylinder ontology 41, the cover that 41 one end of sampling cylinder ontology is arranged in, for connecting
The first fixed ring 42 and first for connecing the linkage section 44 of sampling cylinder ontology 41 and hose 3, being arranged on 41 inner wall of sampling cylinder ontology
Fixed ring 42 cooperates to compress the second fixed ring 43 of filter membrane.
As shown in figure 3, cover includes the outer cylinder 451 to match with sampling cylinder ontology 41 and the inner cylinder being placed in outer cylinder 451
452, the outer diameter of the inner cylinder 452 is equal to the internal diameter of the second fixed ring 43；The diameter of filter membrane is greater than the internal diameter of outer cylinder 451.
As shown in Figure 1, being provided with the groove 11 being connected between 1 roof of cabinet and one side wall and the roof and side wall are upper
It is provided with spiral shell block 12 in the groove top of groove 11, is arranged jagged 13 on the spiral shell block 12, the width of the notch 13 is greater than etc.
In the diameter of linkage section 44；It is arranged with the nut 46 to match with spiral shell block 12 outside the linkage section 44, is fixed on linkage section 44
And it is placed in the fixinig plate 47 in nut 46.
Embodiment 2
The present embodiment optimizes on the basis of the above embodiments, i.e. is provided with hold-down column 431 in the second fixed ring 43,
The length of the hold-down column 431 is equal to the depth for the groove body that outer cylinder 451 and inner cylinder 452 are constituted.Hold-down column 431 and outer cylinder 451
It is axial parallel.After cover covers on sampling cylinder ontology 41, the second fixed ring 43 can be made to compress filter membrane by hold-down column 431, improved
The fixed stability of filter membrane.
Embodiment 3
The present embodiment optimizes on the basis of the above embodiments, i.e., it is fixed to be greater than second for the width of the first fixed ring 42
The width of ring 43 and the width difference of the two are greater than the wall thickness of inner cylinder 452.Preferably, the width of both wall ratios of inner cylinder 452 is poor
Small 2 to 4mm, the filter membrane due to the first fixed ring 42 to the barrier effect of wind, in sampling, with 42 lap of the first fixed ring
Collection capacity is few, can reduce the accumulation of the part dust, avoids filter membrane and inner cylinder contact position adsorbing powder dust amount is excessive is adhered to
Cause DATA REASONING inaccurate on inner cylinder.
Embodiment 4
The present embodiment optimizes on the basis of the above embodiments, as shown in figure 4, i.e. air extractor 2 includes and hose 3
21, two exhaust tubes being connected to exhaust chamber 21 22 of exhaust chamber of connection, the piston 23 being placed in exhaust tube 22 and it is connected to work
The piston rod 24 on 23 is filled in, being arranged on the exhaust tube 22 only allows gas to discharge from 22 1 side of exhaust tube to 21 side of exhaust chamber
The first one-way cock 25, the exhaust pipe that is connected to exhaust tube 22, institute are set between first one-way cock 25 and piston 23
State the second one-way valve door 26 for being provided on exhaust pipe and only gas being allowed to discharge outward from 22 side of exhaust tube；Two piston rods 24
It is arranged in parallel and is separately positioned on 27 two sides of gear, it is axially disposed on the piston rod 24 to have the tooth being meshed with gear 27,
The gear 27 is fixed on the drive means.One end of the piston rod 24 is placed in guide cylinder 28, and one end of guide cylinder is solid
Fixed end, another end cap is outside piston rod.Driving device can sample mute motor.
Two settings of piston rod 24 are in 27 two sides of gear, and when gear rotates, two piston rods 24 move round about, such as
Shown in Fig. 4, when a piston rod 24 moves up under the driving of gear, in first one-way cock 25, second one-way valve door 26
Under effect, which starts pumping action, and another exhaust tube 22 starts exhaust event；When the piston rod 24 is moved to pumping
When the top of pipe 22, gear is rotated backward, and when which moves down under the driving of gear, which starts
Exhaust event, another exhaust tube 22 starts pumping action, to realize that exhaust chamber 21 is continuously evacuated, realizes that dust is adopted
Sample.
Above-described specific embodiment, to the purpose of this utility model, technical scheme and beneficial effects carried out into
One step is described in detail, it should be understood that being not used to limit the foregoing is merely specific embodiment of the present utility model
Determine the protection scope 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 (5)
1. a kind of dust collector including cabinet (1), the air extractor (2) being placed in cabinet (1), passes through hose (3) and pumping
The sampling head of device (2) connection, it is characterised in that:
The sampling head includes sampling cylinder ontology (41), is arranged in the cover of sampling cylinder ontology (41) one end, for connecting sampling
The linkage section (44) of cylinder ontology (41) and hose (3), be arranged the first fixed ring (42) on sampling cylinder ontology (41) inner wall, with
First fixed ring (42) cooperates to compress the second fixed ring (43) of filter membrane；The cover includes and sampling cylinder ontology (41) phase
The outer diameter of the outer cylinder (451) matched and the inner cylinder (452) being placed in outer cylinder (451), the inner cylinder (452) is equal to the second fixed ring
(43) internal diameter；
The diameter of the filter membrane is greater than the internal diameter of outer cylinder (451)；
The cabinet (1), which is provided on the groove (11) being connected and the roof and side wall between roof and one side wall, is located at groove
(11) groove top is provided with spiral shell block (12), is arranged jagged (13) on the spiral shell block (12), and the width of the notch (13) is big
In the diameter for being equal to linkage section (44)；It is arranged with the nut (46) to match with spiral shell block (12) outside the linkage section (44), fixes
On linkage section (44) and the fixinig plate (47) that is placed in nut (46).
2. a kind of dust collector according to claim 1, which is characterized in that be provided on second fixed ring (43)
Hold-down column (431), the length of the hold-down column (431) are equal to the depth of the groove body of outer cylinder (451) and inner cylinder (452) composition.
3. a kind of dust collector according to claim 1, which is characterized in that the air extractor (2) includes and hose
(3) exhaust chamber (21), two exhaust tubes (22) being connected to exhaust chamber (21), the piston being placed in exhaust tube (22) being connected to
(23) and the piston rod (24) that is connected on piston (23), being arranged on the exhaust tube (22) only allows gas from exhaust tube (22)
The first one-way cock (25) that one side is discharged to exhaust chamber (21) side, between first one-way cock (25) and piston (23)
The exhaust pipe being connected to exhaust tube (22) is set, and being provided on the exhaust pipe only allows gas outside from exhaust tube (22) side
The second one-way valve door (26) of discharge；Two piston rods (24) are arranged in parallel and are separately positioned on gear (27) two sides, the work
Axially disposed on stopper rod (24) to have the tooth being meshed with gear (27), the gear (27) is fixed on the drive means.
4. a kind of dust collector according to claim 3, which is characterized in that one end of the piston rod (24), which is placed in, leads
Into cylinder (28).
5. a kind of dust collector according to claim 1, which is characterized in that the width of first fixed ring (42) is big
In the second fixed ring (43) width and the two width difference be greater than inner cylinder (452) wall thickness.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822165954.4U CN209215022U (en) | 2018-12-24 | 2018-12-24 | A kind of dust collector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822165954.4U CN209215022U (en) | 2018-12-24 | 2018-12-24 | A kind of dust collector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209215022U true CN209215022U (en) | 2019-08-06 |
Family
ID=67465742
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822165954.4U Expired - Fee Related CN209215022U (en) | 2018-12-24 | 2018-12-24 | A kind of dust collector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209215022U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109406228A (en) * | 2018-12-24 | 2019-03-01 | 西藏净源科技有限公司 | A kind of dust collector that sampling accuracy is high |
-
2018
- 2018-12-24 CN CN201822165954.4U patent/CN209215022U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109406228A (en) * | 2018-12-24 | 2019-03-01 | 西藏净源科技有限公司 | A kind of dust collector that sampling accuracy is high |
| CN109406228B (en) * | 2018-12-24 | 2024-04-09 | 西藏净源科技有限公司 | Dust collector that sampling accuracy is high |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190806 Termination date: 20201224 |