CN2226724Y - Ventilation device for laboratory - Google Patents
Ventilation device for laboratory Download PDFInfo
- Publication number
- CN2226724Y CN2226724Y CN 95231285 CN95231285U CN2226724Y CN 2226724 Y CN2226724 Y CN 2226724Y CN 95231285 CN95231285 CN 95231285 CN 95231285 U CN95231285 U CN 95231285U CN 2226724 Y CN2226724 Y CN 2226724Y
- Authority
- CN
- China
- Prior art keywords
- inner sleeve
- outer tube
- lifting rope
- ventilation device
- air
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000009423 ventilation Methods 0.000 title abstract 4
- 230000001939 inductive effect Effects 0.000 abstract description 6
- 238000007789 sealing Methods 0.000 abstract 1
- 239000003638 chemical reducing agent Substances 0.000 description 3
Images
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- Ventilation (AREA)
Abstract
The laboratory ventilation device is mainly used for laboratory ventilation, air leakage and noise between the inner sleeve and the outer sleeve are high when the existing laboratory ventilation device is used for inducing air, and the table top air suction cover cannot horizontally rotate. The utility model discloses including, the suit sealing rubber ring between the outer tube, solve leak air, noise problem, including again on the sleeve pipe the suit turn to tray and retaining ring, lifting rope one end is fixed on turning to the tray, make the mesa cover that induced drafts can the free rotation.
Description
The utility model relates to a kind of ventilator for laboratory, comprises inner sleeve and dress parts such as table top suspended hood, outer tube, lifting rope and counter weight thereon.
Current experiments chamber ventilated device, during air inducing, the generation voice that leaks out between inner sleeve and the outer tube, and the air inducing amount is reduced; Because lifting rope is contained on the inner sleeve, make inner sleeve and thereon table top suspended hood of dress again, can only oscilaltion, can not horizontally rotate.When the student does experiment, twist the table top suspended hood by force owing to test the needs of position sometimes, cause device to damage.
It is few to leak out between inside and outside sleeve pipe when the purpose of this utility model is a kind of air inducing of design, and noise is little, and air quantity can be guaranteed; The table top suspended hood can not only oscilaltion, and the ventilator for laboratory that can rotate in the horizontal direction.
The purpose of this utility model is achieved in that table top suspended hood 1 is contained on the inner sleeve 2, inner sleeve is contained in the outer tube 10, back-up ring 7, turn to pallet 8 and O-ring seal 9 all to be sleeved on the inner sleeve, they can not only be with inner sleeve upper and lower slip in outer tube, and inner sleeve can rotate in turning to pallet, and back-up ring and O-ring seal can both rotate in outer tube with inner sleeve; Lower flange 4 is fixed on the upper end of outer tube, and pulley and frame 3 are contained on the upper flange plate, and lifting rope 5 one ends are fixed on and turn on the pallet, and behind pulley, the other end is attached on the counter weight 6, and the outer tube below communicates with the air channel by reducer pipe 11.
The utility model has the advantages that: owing between the inside and outside sleeve pipe O-ring seal is housed, the problem that this has leaked out between two sleeve pipes when having solved air inducing makes it no longer produce noise because of leaking out, and the air inducing amount is guaranteed; Because lifting rope is fixed on and turns on the pallet, so inner sleeve and table top suspended hood are not subjected to the restriction of lifting rope, can freely rotate in the horizontal direction.
Accompanying drawing is a generalized section of the present utility model, among the figure: 1. table top suspended hood; 2. inner sleeve; 3. pulley and frame; 4. upper and lower ring flange; 5. lifting rope; 6. counter weight; 7. back-up ring; 8. turn to pallet; 9. O-ring seal; 10. outer tube; 11. reducer pipe; 12. experiment table position; 13. ground location.
Embodiment: the table top suspended hood is contained on the inner sleeve, back-up ring, turn to pallet and O-ring seal all to be sleeved on the inner sleeve, one end of lifting rope is fixed on turns on the pallet, lower flange is fixed on the upper end of outer tube, inner sleeve is packed in the outer tube, and pulley and frame are fixed on the upper flange plate, and lifting rope is by another termination counter weight behind the pulley, the outer tube below connects reducer pipe, joins with the air channel again.
Claims (1)
1. ventilator for laboratory, comprise inner sleeve [2] and dress table top suspended hood [1] thereon, inner sleeve is contained in the outer tube [10], lower flange [4] is fixed on the upper end of outer tube, pulley and frame [3] are contained on the upper flange plate, also have lifting rope [5] and counter weight [6] etc., it is characterized in that back-up ring [7], turn to pallet [8] and O-ring seal [9] all to be sleeved on the inner sleeve, lifting rope [5] one ends are fixed on and turn on the pallet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95231285 CN2226724Y (en) | 1995-06-01 | 1995-06-01 | Ventilation device for laboratory |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95231285 CN2226724Y (en) | 1995-06-01 | 1995-06-01 | Ventilation device for laboratory |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2226724Y true CN2226724Y (en) | 1996-05-08 |
Family
ID=33875928
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 95231285 Expired - Fee Related CN2226724Y (en) | 1995-06-01 | 1995-06-01 | Ventilation device for laboratory |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2226724Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107233677A (en) * | 2016-03-28 | 2017-10-10 | 王振牛 | A kind of device having a breath of fresh air of high-risk gaseous state operating in limited space |
| CN110274374A (en) * | 2019-05-30 | 2019-09-24 | 何云飞 | A kind of use for laboratory ventilation duct security protection lid with sealing lock function |
-
1995
- 1995-06-01 CN CN 95231285 patent/CN2226724Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107233677A (en) * | 2016-03-28 | 2017-10-10 | 王振牛 | A kind of device having a breath of fresh air of high-risk gaseous state operating in limited space |
| CN110274374A (en) * | 2019-05-30 | 2019-09-24 | 何云飞 | A kind of use for laboratory ventilation duct security protection lid with sealing lock function |
| CN110274374B (en) * | 2019-05-30 | 2020-11-20 | 惠特环境科技有限公司 | Laboratory ventilation pipe security protection lid with sealed locking function |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |