CN2344694Y - Test bed with universal ventilating device - Google Patents
Test bed with universal ventilating device Download PDFInfo
- Publication number
- CN2344694Y CN2344694Y CN 98239044 CN98239044U CN2344694Y CN 2344694 Y CN2344694 Y CN 2344694Y CN 98239044 CN98239044 CN 98239044 CN 98239044 U CN98239044 U CN 98239044U CN 2344694 Y CN2344694 Y CN 2344694Y
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- CN
- China
- Prior art keywords
- air inlet
- universal
- straight tube
- lifting straight
- utility
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Abstract
The utility model relates to an experiment table with a universal ventilating device, which is characterized in that the utility model is formed by the butt joint of a lifting straight pipe 1, a corrugated pipe 2, and an air inlet terminal 3, and the edge of the air inlet is connected with air inlet air guiding covers 35, 35', so that the whole body can be retracted under the table panel of the experiment table, and the air inlet can be adjusted to any position or sloped angle when the utility model is used. The utility model has the advantages of simple structure, convenient operation, and good air exhausting effect.
Description
The utility model relates to the indoor ventilation unit of chemical experiment, be mounted in the aspiration channel device on the laboratory table table top in the laboratory, the pernicious gas that when doing chemical experiment, produces, under the effect of laboratory exhaust duct air-introduced machine, in the exhaust duct under the suction of the aspiration channel device on the laboratory table table top table surface, be discharged to outdoorly again by underground ventilation shaft, make the timely discharge of pernicious gas can not endanger healthy.
Exhaust ventilation pipe unit on the existing chemical laboratory laboratory table table top mainly is to be connected with bell mouth shape air inlet elbow by the upper end at the lifting straight tube of erectting to constitute, or be connected with an air inlet termination by elbow bend by upper end at the lifting straight tube of erectting, the bell mouth shape air inlet that leading section in the air inlet termination is provided with under shed constitutes, the structure that comes to this as the ventilator for laboratory of CN952312859 patent disclosure, its major defect of this structure is, this exhaust ventilation pipe unit can only move with the plane do oscilaltion on the table and rotate, the air inlet direction is determined, air inlet can only be adjusted its position with about the lifting straight tube and plane, air inlet can not be adjusted arbitrarily the direction angle, obtain the pernicious gas that optimum position and angle suction experimental provision produce, because there is the bend pipe air intake head part that be fixedly connected rigid with it upper end of lifting straight tube, be subjected to the restriction of rigid elbow air intake head part, after finishing experiment, when descending this ventilation unit, be in after bend pipe air inlet end portion on the desktop is transferred with the lifting straight tube laboratory table table top above, can not be down in the exhaust duct under the laboratory table table top with the lifting straight tube, make laboratory table table top one flat, this not only makes the experiment desktop seem very untidy, and when not needing air draft, bend pipe air inlet end portion on the laboratory table table top is taking the table surface space, also hinders one's work.
Liaoyang City Teaching Instrument Company has produced a kind of straight barrel type laboratory ventilation pipe unit in prior art, it is directly to offer air inlet on the side of the upper end of lifting straight tube, being connected with the air intake flap that upwards starts in the air inlet upper end constitutes, start air intake flap retaining during use on air inlet top, forming air inlet air inducing cover plate assists the air inlet suction to ventilate, after finishing experiment, air intake flap pass is combined on the air inlet, the lifting straight tube just can all be depressed in the exhaust duct that is down under the laboratory table table top, the upper surface of lifting straight tube and desktop maintain an equal level, though it has overcome previous experiments table ventilation duct device finish experiment after, ventilation unit can not be fallen fully to the flat shortcoming of desktop one, but because its air inlet is on the lifting straight tube, can not be fully near experimental provision, and just side direction air draught, and air inlet can not be adjusted arbitrarily the direction angle, so it can only effectively be got rid of near the pernicious gas the air inlet, pernicious gas slightly at a distance is difficult to suction, its suction wind energy power is relatively poor, so it is also unsatisfactory.
The purpose of this utility model is that the shortcoming deficiency at prior art improves, and provides a kind of simple in structure, easy to use, the universal breather device of laboratory table that air draft is effective.
Technical solution of the present utility model be its by lifting straight tube 1, universal spacer dimple pipe 2, air inlet termination 3, the two ends up and down of universal spacer dimple pipe 2 are docked secure fit with the upper end of the lower end of air inlet termination 3 and lifting straight tube 1 respectively and are connected and composed.
The utility model is by lifting straight tube 1, universal spacer dimple pipe 2, the laboratory table breather device that air inlet termination 3 constitutes, it not only can fully uprightly form a straight barrel type ventilation unit, be installed in the exhaust duct under the laboratory table table top, on the laboratory table table top, move up and down and the plane rotation, finishing experiment back integral body can depress in the exhaust duct of falling under the laboratory table table top fully, make laboratory table table top one flat, and can become the elbow type ventilation unit by curving of universal spacer dimple pipe 2, and make the air inlet on the air inlet termination 3 be adjusted to any one position and hectare rake angle by curving of universal spacer dimple pipe 2, make air inlet reach universal adjustment and be in the optimum position, not influencing experimental provision puts, finish after the experiment bellows 2 plates are straight, integral body can be depressed in the exhaust duct of falling under the laboratory table table top fully, make laboratory table table top one flat, overcome the shortcoming deficiency of prior art fully, and simple in structure, easy to use, air draft is effective.
Fig. 1 is the utility model example structure schematic diagram.
Fig. 2 is Fig. 1 the utility model example structure and user mode schematic diagram.
Fig. 3 is that the K of Fig. 2 is to view.
Further specify the utility model below in conjunction with accompanying drawing.
The utility model is characterized in that being made of lifting straight tube 1, universal spacer dimple pipe 2, air inlet termination 3, the two ends up and down of universal spacer dimple pipe 2 are connected with the lower end of air inlet termination 3 and the upper end butt joint secure fit of lifting straight tube 1 respectively, shown in accompanying drawing 1, the two ends up and down of universal spacer dimple pipe 2 are connected by coupling sleeve 4,4 ' butt joint secure fit with the lower end of air inlet termination 3 and the upper end of lifting straight tube 1 respectively, its advantage is to be convenient to assembling and maintenance, and its butt joint of also directly pegging graft mutually connects certainly; The fixedly connected stop collar 10 that is provided with on the outer ring surface of the middle part of lifting straight tube 1, be provided with in the bottom of lifting straight tube 1 by gland 71, sealing ring 72, the 3-4 spring sealing positioner 7 that pin 73 constitutes that rises, also adopt the sealing location structure device of other form certainly.Lifting straight tube 1 is installed in laboratory exhaust duct system under the laboratory table table top 8 and is located in the exhaust duct 9 under the laboratory table table top 8, lifting straight tube 1 cooperates with exhaust duct 9 inwalls by the sealing positioner 7 of its bottom, in exhaust duct 9, can twitch mobile up and down, during use it is upwards extracted out from laboratory table table top 8, and cooperate stop by the end cover of stop collar 10 and exhaust duct 9 upper ends, carry out the highest spacing, the time spent is fallen in the exhaust duct 9 it, makes its upper end end face and laboratory table table top 8 one flat.
The utility model bellows 2 is that a kind of its ripple cross section of employing is to be the not bellows of isosceles triangle, it can keep the knuckle location constant after bending arbitrarily, make air inlet termination 3 motionless by curving bellows 2 portabilities during use to a side optional position, angle hectare oblique location, after finishing using bellows 2 is pulled directly, integral body can be pressed in the exhaust duct 9.
Air inlet on the utility model air inlet termination 3 can be to be opened on the top of air inlet termination 3, also is opened on the side end face of air inlet termination 3, and be that air inlet 30 is to be opened on the side end face of air inlet termination 3 shown in the accompanying drawing embodiment; For further improving suction wind effect, on air inlet 30 dual-sides, be connected with air inlet blower cover 35,35 ' by hinge 32 respectively.When it uses blower cover 35,35 ' is opened, blower cover 35,35 ' assists air inlet 30 to carry out air inducing, closes when not using and closes, and does not influence integral body and is retracted in the exhaust duct 9.
Claims (4)
1, the universal ventilator of a kind of laboratory table, it is characterized in that by lifting straight tube (1), universal spacer dimple pipe (2), air inlet termination (3) two ends up and down of universal spacer dimple pipe (2) are docked secure fit with the upper end of the lower end of air inlet termination (3) and lifting straight tube (1) respectively and connected and composed.
2, the universal ventilator of laboratory table according to claim 1 is characterized in that universal spacer dimple pipe (2) is that its ripple cross section is the not bellows of isosceles triangle.
3, the universal ventilator of laboratory table according to claim 1 is characterized in that air inlet (30) is to be opened on the side end face of air inlet termination (3); On air inlet (30) dual-side, be connected with air inlet blower cover (35,35 ') by hinge (32) respectively.
4, according to claim 1 or the universal ventilator of 2 or 3 described laboratory tables, it is characterized in that the fixedly connected stop collar (10) that is provided with on the middle part outer ring surface of lifting straight tube (1), be provided with in the bottom of lifting straight tube (1) by gland (71), sealing ring (72), the 3-4 spring sealing positioner (7) that pin (73) constitutes that rises
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98239044 CN2344694Y (en) | 1998-10-06 | 1998-10-06 | Test bed with universal ventilating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98239044 CN2344694Y (en) | 1998-10-06 | 1998-10-06 | Test bed with universal ventilating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2344694Y true CN2344694Y (en) | 1999-10-20 |
Family
ID=33986495
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98239044 Expired - Fee Related CN2344694Y (en) | 1998-10-06 | 1998-10-06 | Test bed with universal ventilating device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2344694Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107702305A (en) * | 2017-08-15 | 2018-02-16 | 西安建筑科技大学 | One kind is applied to become workspace attaching air current composition environment-guarantee method and device |
| CN110878978A (en) * | 2019-12-13 | 2020-03-13 | 河南城建学院 | Ventilation energy-saving equipment of green building |
| CN111707789A (en) * | 2020-07-27 | 2020-09-25 | 江苏华谱联测检测技术服务有限公司 | Laboratory toxic gas detection device and alarm equipment thereof |
-
1998
- 1998-10-06 CN CN 98239044 patent/CN2344694Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107702305A (en) * | 2017-08-15 | 2018-02-16 | 西安建筑科技大学 | One kind is applied to become workspace attaching air current composition environment-guarantee method and device |
| CN107702305B (en) * | 2017-08-15 | 2019-03-22 | 西安建筑科技大学 | One kind being suitable for becoming workspace and attaches air current composition environment-guarantee method and device |
| CN110878978A (en) * | 2019-12-13 | 2020-03-13 | 河南城建学院 | Ventilation energy-saving equipment of green building |
| CN111707789A (en) * | 2020-07-27 | 2020-09-25 | 江苏华谱联测检测技术服务有限公司 | Laboratory toxic gas detection device and alarm equipment thereof |
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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 |