CN201060088Y - Biology safety negative-pressure experimental laboratory air exhausting leak detection monitoring plant magnetic transmission mechanism - Google Patents
Biology safety negative-pressure experimental laboratory air exhausting leak detection monitoring plant magnetic transmission mechanism Download PDFInfo
- Publication number
- CN201060088Y CN201060088Y CNU2007201283450U CN200720128345U CN201060088Y CN 201060088 Y CN201060088 Y CN 201060088Y CN U2007201283450 U CNU2007201283450 U CN U2007201283450U CN 200720128345 U CN200720128345 U CN 200720128345U CN 201060088 Y CN201060088 Y CN 201060088Y
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- China
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- permanent magnet
- box
- case
- leak detection
- guide shaft
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Abstract
The utility model relates to a magnetic transmission mechanism which is used for an air exhaust leak detection monitor device of an organism safety negative pressure laboratory. The utility model comprises an external dynamic mechanism and an internal motion mechanism. A rack of the external dynamic mechanism is arranged at the lateral side of the bottom of a box body 1, and a gear 6 is meshed with a rack 7; the gear 6 is arranged on a transmission shaft of a motor 8. A permanent magnet 9 outside the box is arranged at the lateral side of the bottom of the box, and the permanent magnet 9 keeps clearance with the bottom of the box and is fixedly connected with the motor. A sliding guide shaft 5 of the internal motion mechanism is parallel to the bottom of the box, and the sliding guide shaft is arranged at the inside of the box body 1. An air sampling head 2 is arranged on the sliding guide shaft 5 in a sliding way; an permanent magnet 10 inside the box is arranged at the inside of the bottom of the box, and the permanent magnet 10 inside the box keeps clearance with the bottom of the box and is fixedly connected with the air sampling head 2. The polarities of adjacent ends of the permanent magnet 10 inside the box and the permanent magnet 9 outside the box are opposite. The utility model does not need to be provided with a dynamic transmission hole on the box body, which avoids the hidden trouble of leakage and ensures the use safety of an air exhaust box in the air exhaust leak detection monitor device of the organism safety negative pressure laboratory.
Description
Technical field
The utility model relates to bio-safety negative pressure laboratory air draft leak detection monitoring device, especially a kind of bio-safety negative pressure laboratory air draft leak detection monitoring device magnetic driving mechanism.
Background technology
The air draft of bio-safety negative pressure Laboratory Request must be installed on-the-spot leak detection back with high efficiency particulate air filter, leaks out the outdoor atmospheric pollution that causes to avoid the harmful gas filtered.
Bio-safety negative pressure laboratory air draft leak detection monitoring device is in the experiment operational process air draft to be finished monitoring on the spot incessantly with high efficiency particulate air filter, at any time the leakage phenomenon that discovery may occur, so that in time take the emergency preplan measure, avoid occurring the isolated plant of possible environmental pollution risk.
Bio-safety negative pressure laboratory air draft leak detection monitoring device realizes that the key of scanning is the regular motion of air sampling head at the high efficiency particulate air filter outlet air surface.Original sampling head gear train need be opened on air draft Rose Box casing and get the transmission of power hole, so that external impetus is driven the motion of box house sampling head by the axle base part, realizes scanning motion.Axle base part in this transmission of power hole is in rotary state always, its sealing can guarantee in the early stage, but when long-time running, under the pressure differential that the inside and outside exists, to inevitably occur leaking, jeopardize the safe in utilization of bio-safety negative pressure laboratory air draft leak detection monitoring device.
Summary of the invention
The new purpose of this practicality is to drive the problem that the motion of box house sampling head is prone to leakage at present bio-safety negative pressure laboratory air draft leak detection monitoring device by the axle base part, provide a kind of and the sampling head that external impetus is passed in the casing is made its motion by magnetic force, thus the bio-safety negative pressure laboratory air draft leak detection monitoring device magnetic driving mechanism of avoiding air draft leak detection monitoring device to leak.
The utility model is according to the breadboard safety requirements of bio-safety negative pressure, in conjunction with the permanent magnet same sex repel each other, principle of opposite sex attraction, by magnetic force the casing external impetus is passed to sampling head in the casing, make its motion, need not perforate on the air draft box body, do not destroy the overall tightness of air draft case, thereby guarantee the safe in utilization of bio-safety negative pressure laboratory air draft leak detection monitoring device.
Bio-safety negative pressure described in the utility model laboratory air draft leak detection monitoring device magnetic driving mechanism comprises the external impetus mechanism that is made of motor, tooth bar, gear, the outer permanent magnet of case that is installed in air draft box body outside and is installed in the internal motion mechanism that is made of permanent magnet, slip guide shaft, air sampling head in the case of box house.The tooth bar of external impetus mechanism is installed on outside the bottom half, the wheel and rack engagement, and gear is loaded on the motor transmission shaft, and the outside was connected with maintenance gap at the bottom of the case and with motor at the bottom of the outer permanent magnet of case was loaded on case.The slip guide shaft of internal motion mechanism is loaded on the cabinet inboard at the bottom of being parallel to case, and the air sampling head is loaded on the slip guide shaft slidably, and the inboard was connected with maintenance gap at the bottom of the case and with the air sampling head at the bottom of permanent magnet was loaded on case in the case.Permanent magnet is opposite with the polarity of the outer permanent magnet abutting end of case in the case.
The slip guide shaft of internal motion mechanism is two.
During work, electrical power, driven gear, the outer permanent magnet of case move along tooth bar, repel each other according to the permanent magnet same sex, the principle that there is a natural attraction between the sexes, the outer permanent magnet of case moves permanent magnet in the suction box to same direction.The air sampling head that is connected with permanent magnet in the case will be driven and be moved along the slip guide shaft, and scanning motion is carried out on the high efficiency particulate air filter surface.Sampling gained air sample is delivered to by the sampling flexible pipe and is carried out analyzing and testing in the particle counting instrument.
Magnetic driving mechanism described in the utility model need not be opened on casing and get any transmission of power hole, avoided bringing sealing problem because of perforate, avoid the hidden danger of leaking, thereby guaranteed the safety in utilization of air draft case in the bio-safety negative pressure laboratory air draft leak detection monitoring device.
Description of drawings
Fig. 1 is the utility model air draft leak detection monitoring device magnetic driving mechanism structural map;
Fig. 2 is the utility model air draft leak detection monitoring device magnetic driving mechanism cut-open view;
Fig. 3 is the partial enlarged drawing of Fig. 2.
Among the figure, 1 air draft box body, 2 air samplings, 10 casees interior permanent magnets of 3 high efficiency particulate air filters, 4 sampling flexible pipes, 5 slip guide shafts, 6 gears, 9 casees outer permanent magnets of 7 tooth bars, 8 motors
Embodiment
The concrete technical scheme that its technical matters that solves the utility model adopts is: the rack-and-pinion device that directions X is installed at bottom half, make the directions X back and forth movement by the external motor driven gear along tooth bar, the directions X motion of permanent magnet outside the case of realizing being fixed as one with motor drives permanent magnet motion in the opposite polarity case that is installed in box house sampling head bottom by the principle that there is a natural attraction between the sexes.Thereby realize contactless transmission of power.The leakage danger side of body of having avoided the casing perforate to be brought.
Below in conjunction with accompanying drawing with the utility model is described in further detail.
During work, motor 8 energisings, driven gear 6, the outer permanent magnet 9 of case are done directions X along tooth bar 7 and are moved.According to the principle that the permanent magnet same sex is repelled each other, there is a natural attraction between the sexes, the outer permanent magnet 9 of case moves permanent magnet in the suction box 10 to same direction, simultaneously, the air sampling that is fixed as one with permanent magnet in the case 10 2 will be driven and be moved along slip guide shaft 5, and scanning motion is carried out on high efficiency particulate air filter 3 surfaces.Sampling gained air sample is delivered to by sampling flexible pipe 4 and is carried out analyzing and testing in the particle counting instrument.So, entire mechanism need not be opened on case 1 and get any transmission of power hole, avoid a series of sealing problems that bring because of perforate and the potential safety hazard of leakage, thereby guaranteed the safety in utilization of air draft case in the bio-safety negative pressure laboratory air draft leak detection monitoring device.
Claims (2)
1. bio-safety negative pressure laboratory air draft leak detection monitoring device magnetic driving mechanism is characterized in that: comprise the external impetus mechanism that is made of motor, tooth bar, gear, the outer permanent magnet of case that is installed in air draft box body outside and be installed in the internal motion mechanism that is made of permanent magnet, slip guide shaft, air sampling head in the case of air draft box body inside; The tooth bar of external impetus mechanism is installed on outside the bottom half, the wheel and rack engagement, and gear is loaded on the motor transmission shaft, and the outside was connected with maintenance gap at the bottom of the case and with motor at the bottom of the outer permanent magnet of case was loaded on case; The slip guide shaft of internal motion mechanism is loaded on the cabinet inboard at the bottom of being parallel to case, and the air sampling head is loaded on the slip guide shaft slidably, and the inboard was connected with maintenance gap at the bottom of the case and with the air sampling head at the bottom of permanent magnet was loaded on case in the case; Permanent magnet is opposite with the polarity of the outer permanent magnet abutting end of case in the case.
2. by the described bio-safety negative pressure of claim 1 laboratory air draft leak detection monitoring device magnetic driving mechanism, it is characterized in that: the slip guide shaft of internal motion mechanism is two.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201283450U CN201060088Y (en) | 2007-07-31 | 2007-07-31 | Biology safety negative-pressure experimental laboratory air exhausting leak detection monitoring plant magnetic transmission mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201283450U CN201060088Y (en) | 2007-07-31 | 2007-07-31 | Biology safety negative-pressure experimental laboratory air exhausting leak detection monitoring plant magnetic transmission mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201060088Y true CN201060088Y (en) | 2008-05-14 |
Family
ID=39408567
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201283450U Expired - Lifetime CN201060088Y (en) | 2007-07-31 | 2007-07-31 | Biology safety negative-pressure experimental laboratory air exhausting leak detection monitoring plant magnetic transmission mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201060088Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108106786A (en) * | 2018-01-30 | 2018-06-01 | 北京聚源恒达科技有限公司 | A kind of detection device for bio-safety filter |
| CN114544084A (en) * | 2022-01-06 | 2022-05-27 | 苏州凯尔森气滤系统有限公司 | Vertical scanning leak detection mechanism |
-
2007
- 2007-07-31 CN CNU2007201283450U patent/CN201060088Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108106786A (en) * | 2018-01-30 | 2018-06-01 | 北京聚源恒达科技有限公司 | A kind of detection device for bio-safety filter |
| CN108106786B (en) * | 2018-01-30 | 2024-02-20 | 唐山同海净化设备有限公司 | Detection device for biological safety filter |
| CN114544084A (en) * | 2022-01-06 | 2022-05-27 | 苏州凯尔森气滤系统有限公司 | Vertical scanning leak detection mechanism |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| DD01 | Delivery of document by public notice |
Addressee: Hu Guorong Document name: Notification of Decision on Request for Restoration of Right |
|
| DD01 | Delivery of document by public notice |
Addressee: Hu Guorong Document name: Notification of Termination of Patent Right |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20080514 |