CN2180335Y - Mechanical safety locking device for centrifuger - Google Patents
Mechanical safety locking device for centrifuger Download PDFInfo
- Publication number
- CN2180335Y CN2180335Y CN 93212751 CN93212751U CN2180335Y CN 2180335 Y CN2180335 Y CN 2180335Y CN 93212751 CN93212751 CN 93212751 CN 93212751 U CN93212751 U CN 93212751U CN 2180335 Y CN2180335 Y CN 2180335Y
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- China
- Prior art keywords
- locking device
- block
- centrifuge
- plate
- trace
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- Expired - Fee Related
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Abstract
The utility model discloses a mechanical safety locking device for centrifuges. A microswitch and a lock bolt are installed on a bolt seat, wherein, the lock bolt is penetrated with a toggle pin and sheathed with a compression spring, and the left end of the bolt seat is connected with a supporting box. An electromagnet is arranged in the supporting box, a linking rod which is sheathed with the compression spring is arranged in the bolt seat, and a dialing plate is sheathed on a shaft which is fixed on the bolt seat. The utility model is characterized in that a block is riveted with an armature iron which is hinged with a yoke iron; an extension spring is arranged between the armature iron and the yoke iron; the block is shielded on a circular bead of the linking rod, the linking rod is connected with the dialing plate by a linking pin, and a notch is arranged on the dialing plate. The cover of the mechanical safety locking device can be naturally closed and locked under the condition that the power source is not switched on. The utility model has the advantages of simple structure, small volume, convenient operation and safe use.
Description
The utility model relates to a kind of mechanical type centrifuge cup safe locking device, and it is applicable to high speed freezing centrifuge, large capacity refrigerated centrifuge and other console mode low speed centrifuge.
The centrifuge cup safe locking device is divided into electromagnetic type and mechanical type.The electromagnetic type locking device relies on electromagnetic force that locking device and lid are thrown off before uncapping, and the electromagnet that it adopts (the do traction is used) is generally big than used electromagnet in the mechanical locking device (doing control uses), so whole device volume is big, so complex structure; Mechanical locking device then relies on manually throws off locking device and lid.Many centrifuges all adopt mechanical locking device.This device has different forms.Wherein a kind of is single mechanical locking device, the locking device of the GL-20A type completely automated high speed refrigerated centrifuge of producing as centrifuge factory of Hunan Instrument General Factory.This apparatus structure is simple, easily the centrifugal chamber good seal, but when centrifuge turns round, this device Tuo Dekai, lid lifts to such an extent that open; Another kind is to add a cover servicing unit on single mechanical locking device in addition, and lid is not opened when making the centrifuge running, the device that the CR20B2 type high speed freezing centrifuge of producing as HIT adopts.This form is main device with mechanical locking device still, and it realizes sealing in order to when centrifuge-head destroys fragment is controlled in the centrifugal chamber in order to will cover fastening.And servicing unit only starts to control making usefulness, and lid lifts not open when making the centrifuge running.But master's device still can be thrown off when the shortcoming of this form was the centrifuge running.After main device was thrown off, only remaining servicing unit worked, and servicing unit is to be not enough to guarantee the safe in utilization of centrifuge.This form has adopted two covering devices, complex structure simultaneously.
The mechanical type centrifuge cup locking device that the J-6B type large capacity refrigerated centrifuge that Beckman Instruments Inc.(U.S.A.) produces is adopted takes off not open in the centrifuge operation process, does not have servicing unit, and is simple in structure, uses reliable.But this device centrifuge cup when centrifuge power supply access failure can not cover naturally, unless artificially the block in the locking device is pushed open.Just there are two problems in this: the one, and lid can damage the locking bar, the lock bolt in the locking device or the block that cover when falling, when not adorning the centrifuge that air spring one class supports on the centrifuge cup; The 2nd, need artificially push block, inconvenient operation for lid is covered this moment.
Do not find that by retrieval a kind of mechanical type centrifuge cup safe locking device is disclosed use.
The purpose of this utility model provides a kind of mechanical type centrifuge cup safe locking device that does not have servicing unit, and it can not only be fixed with cover lock securely, takes off not open when centrifuge turns round, and when the power supply access failure, also can allow lid cover naturally, lock.
For achieving the above object, the technical scheme that the utility model is taked is: with the motion of block by trace control group plate; Dial and to drive lock bolt when plate is struck and move.Dial on the plate and open a breach, lock bolt still can move when group plate was blocked by block.Block under the situation of dialling plate at power supply access failure, block like this, lid is covered, the locking bar that covers promotes lock bolt and retreats, and lid can cover, lock.Needn't promote block, the purpose that centrifuge cup also can cover naturally, lock artificially thereby reach.
Fig. 1 is the structural representation of mechanical type centrifuge cup safe locking device.
Fig. 2 is the cutaway view of mechanical type centrifuge cup safe locking device.
Fig. 3 is the left view of mechanical type centrifuge cup safe locking device.
Fig. 4 is the axle and the linkage pin profile of mechanical type centrifuge cup safe locking device.
Below in conjunction with accompanying drawing the utility model is described in detail:
According to Fig. 1, Fig. 2 as can be known, on door bolt seat (1) microswitch (2a), (2b) are housed, microswitch (2a), (2b) are screwed on door bolt seat (1).In the hole in the middle of the door bolt seat (1) lock bolt (3) is housed, wears one on the lock bolt (3) and stir pin (4) and be with compression spring (5), stir lock (4) on the lock bolt (3) and be connected in the breach of dialling on the plate (11).Supporting case (6) is connected the left end of fastening seat (1) with a bolt or latch by screw, and electromagnet (7) is housed in the supporting case (6), and supporting case (6) is connected with screw with electromagnet (7).In door bolt seat (1), movably trace (8) is housed.Be with compression spring (9) on the trace (8).According to Fig. 4 as can be known, axle (10) passes dials plate (11), and screw is fastened on axle (10) on the door bolt seat (1).Linkage pin (12) passes skewed slot of dialling on the plate (11) and the groove of fastening with a bolt or latch on the seat (1), inserts in the hole of trace (8), and retaining is on the right-hand member of spring (9).In Fig. 3, block (15) and armature (14) riveted joint, armature (14) is hinged with yoke (16), between armature (14) and yoke (16) extension spring (17) is housed.
Whether microswitch (2a), (2b) are connected in the control circuit, cover, lock in order to detect lid, guarantee not cover, centrifuge can not start when locking.When not covering, locking bar (13) does not insert door bolt seat (1), and microswitch (2a) is disconnected; When lid covers, locking bar (13) inserts, and lock bolt (3) does not enter in the hole of locking bar (13), and then microswitch (2b) is disconnected.In both cases, centrifuge all can not start.Only when lid covered and lock, microswitch (2a), (2b) connected at this moment, and centrifuge just may start.Electromagnet (7) is controlled by control circuit adhesive, the release of armature (14), thereby the motion of plate (11) is dialled in control, and when guaranteeing that centrifuge turns round, locking device and lid take off not open.
During work, connect power supply.Control circuit makes electromagnet (7) energising, and armature (14) is by adhesive.Block (15) leaves trace (8).Cover centrifuge cup, the locking bar that covers (13) inserts door bolt seat (1), and utilizes the inclined-plane on the lock bolt (3) that it is got into door bolt seat (1), and locking bar (13) is inserted into the position, and contacts with microswitch (2a), and microswitch (2a) is connected.Lock bolt this moment (3) enters in the hole of locking bar (13) under the promotion of spring (5), is locked.The pin (4) of stirring on the lock bolt (3) is connected microswitch (2b).At this moment centrifuge just may start.After the centrifuge starting, control circuit disconnects the circuit of electromagnet (7), and block (15) near the axle journal of trace (8), blocks its shoulder under the effect of extension spring (17).At this moment stir plate (11), trace (8) can not be moved by stopping of block (15), and the linkage pin on it (12) can not move, thereby group plate (11) can not be struck, thereby can't drive the hole that lock bolt (3) withdraws from locking bar (13), locking device and lid take off not open.During the centrifuge stall, control circuit makes electromagnet (7) energising, and armature (14) is by adhesive, and block (15) leaves trace (8), and trace (8) is not stopped.Stir plate (11) this moment, dial plate (11) rotate (trace (8), linkage pin (12) move to left) thereupon, drive and stir pin (4), lock bolt (3) is moved to left, withdraw from the hole of locking bar (13) around axle (10).Upwards flip, lid is opened.
Because dial on the plate (11) and have a breach, the pin (4) of stirring on the lock bolt (3) is arranged in this breach, is not subjected to dial the restriction of plate (11) so lock bolt (3) moves to left, and also just is not subjected to the restriction of block (15).During the power supply access failure, block (15) is not removed, and cover lid this moment, and locking bar (13) promotes lock bolt (3) and moves to left, and locking bar (13) inserts naturally, makes to cover nature and cover locking, needn't push block (15) open.
For the ease of at the power supply access failure or do not have under the situation of electricity and also can raise the centrifuge cup that pins, as long as on the centrifuge that this device is installed, stay an emergent hole, can make the operator utilize a roundel to insert this hole, easily block (15) is pushed open, so that stir plate (11), uncap.Push block open, stir hand of two of plates action and can finish.
Armature (14) and yoke (16) all have certain rigidity.But when block (15) keeps off on the shoulder of trace (8), stir plate (11) by force, may make yoke (16) distortion.In order to prevent yoke (16) distortion, use supporting case (6) that yoke (16) is protected in this device.Block (15) is near the left side of supporting case (6).When stirring plate (11), under the promotion of dialling plate (11), block (15) moves to left because of the gap of armature (14) with yoke (16) hinged place, and supported immediately box (6) withstands, and no longer moves to left, and does not cause yoke (16) distortion.
Flexibility and reliability when making block (15) perseveration respectively leaves 0.5～0.8 mm clearance between the shoulder of block (15), supporting case (6) and trace (8).In the centrifuge operation process, dial plate (11) and be not intended to be struck, then make trace (8) can move certain distance.If dialling plate (11) stirs pin (4) and moves to left near stirring pin (4), will making so.This can not make locking device and lid throw off, but microswitch (2b) is disconnected, and causes the centrifuge power supply to disconnect, and the centrifuge reduction of speed that is turning round is shut down.Occur for fear of this situation, allow and dial plate (11) and leave 1.5～2 millimeter gap between the pin (4) with stirring.
The utility model has the advantages that: in the situation of power supply access failure, lid also can naturally cover, lock; Simple in structure, easy to operate; Since adopt electromagnet and the armature of JTX type DC24V relay, thereby volume is little, safe and reliable.
Claims (4)
1, a kind of mechanical type centrifuge cup safe locking device, it is made up of door bolt seat, lock bolt, trace, group plate, baffle plate etc., it is characterized in that the riveted joint of block and armature, armature and yoke are hinged, between armature and yoke extension spring is housed, trace is connected with linkage pin with group plate, and block leans against on the axle journal of trace.
2, a kind of mechanical type centrifuge cup safe locking device according to claim 1 is characterized in that having a breach on group plate.
3, a kind of mechanical type centrifuge cup safe locking device according to claim 1 is characterized in that the pin of stirring on the lock bolt is connected in the breach of dialling on the plate.
4, a kind of mechanical type centrifuge cup safe locking device according to claim 1 is characterized in that the gap between the shoulder of block and supporting case and trace is 0.5～0.8 millimeter, dials plate and the gap of stirring between the pin is 1.5～2 millimeters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93212751 CN2180335Y (en) | 1993-05-14 | 1993-05-14 | Mechanical safety locking device for centrifuger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93212751 CN2180335Y (en) | 1993-05-14 | 1993-05-14 | Mechanical safety locking device for centrifuger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2180335Y true CN2180335Y (en) | 1994-10-26 |
Family
ID=33794015
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 93212751 Expired - Fee Related CN2180335Y (en) | 1993-05-14 | 1993-05-14 | Mechanical safety locking device for centrifuger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2180335Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101618370B (en) * | 2008-07-03 | 2012-06-13 | 热电子Led有限公司 | A centrifuge cup |
| CN103357841A (en) * | 2012-03-26 | 2013-10-23 | 卓然(靖江)设备制造有限公司 | Novel end cover fixing device of centrifugal tube casting die |
| CN108636622A (en) * | 2018-04-25 | 2018-10-12 | 湖南德诺科学仪器有限公司 | A kind of centrifuge upper cover locking device and locking state identifying system |
-
1993
- 1993-05-14 CN CN 93212751 patent/CN2180335Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101618370B (en) * | 2008-07-03 | 2012-06-13 | 热电子Led有限公司 | A centrifuge cup |
| CN103357841A (en) * | 2012-03-26 | 2013-10-23 | 卓然(靖江)设备制造有限公司 | Novel end cover fixing device of centrifugal tube casting die |
| CN103357841B (en) * | 2012-03-26 | 2015-07-22 | 卓然(靖江)设备制造有限公司 | Novel end cover fixing device of centrifugal tube casting die |
| CN108636622A (en) * | 2018-04-25 | 2018-10-12 | 湖南德诺科学仪器有限公司 | A kind of centrifuge upper cover locking device and locking state identifying system |
| CN108636622B (en) * | 2018-04-25 | 2024-01-26 | 湖南德诺科学仪器有限公司 | Locking system for upper cover of centrifugal machine |
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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 |